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Informatica Data Replication (Version 9.6.2)

Datatype Mapping Reference

Informatica Data Replication Datatype Mapping Reference

Version 9.6.2December 2015

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Table of Contents

Preface . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6Informatica Resources. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Informatica My Support Portal. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Informatica Documentation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Informatica Product Availability Matrixes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

Informatica Web Site. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Informatica How-To Library. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Informatica Knowledge Base. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Informatica Support YouTube Channel. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Informatica Marketplace. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Informatica Velocity. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Informatica Global Customer Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Chapter 1: Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9Mapping Reference Overview. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Datatype Mapping Variables and Operators. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Chapter 2: Datatype Mappings for DB2 for Linux, UNIX, and Windows Sources. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12DB2 for Linux, UNIX, and Windows Source and Amazon Redshift Target. . . . . . . . . . . . . . . . . . 12

DB2 for Linux, UNIX, and Windows Source and DB2 Target. . . . . . . . . . . . . . . . . . . . . . . . . . 14

DB2 for Linux, Unix, and Windows Source and Greenplum Target. . . . . . . . . . . . . . . . . . . . . . 16

DB2 for Linux, UNIX, and Windows Source and Microsoft SQL Server Target. . . . . . . . . . . . . . . 18

DB2 for Linux, UNIX, and Windows Source and MySQL Target. . . . . . . . . . . . . . . . . . . . . . . . 20

DB2 for Linux, UNIX, and Windows Source and Netezza Target. . . . . . . . . . . . . . . . . . . . . . . . 22

DB2 for Linux, UNIX, and Windows Source and Oracle Target. . . . . . . . . . . . . . . . . . . . . . . . . 25

DB2 for Linux, UNIX, and Windows Source and Teradata Target. . . . . . . . . . . . . . . . . . . . . . . 27

DB2 for Linux, UNIX, and Windows Source and Vertica Target. . . . . . . . . . . . . . . . . . . . . . . . 30

Unsupported DB2 Datatypes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Chapter 3: Datatype Mappings for Microsoft SQL Server Sources. . . . . . . . . . . . . . 33Microsoft SQL Server Source and Amazon Redshift Target. . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Microsoft SQL Server Source and DB2 for Linux, UNIX, and Windows Target. . . . . . . . . . . . . . . 36

Microsoft SQL Server Source and Greenplum Target. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Microsoft SQL Server Source and Microsoft SQL Server Target. . . . . . . . . . . . . . . . . . . . . . . . 43

Microsoft SQL Server Source and MySQL Target. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 46

Microsoft SQL Server Source and Netezza Target. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 49

Microsoft SQL Server Source and Oracle Target. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 53

Microsoft SQL Server Source and Teradata Target. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 57

Microsoft SQL Server Source and Vertica Target. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60

4 Table of Contents

Unsupported Microsoft SQL Server Datatypes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 62

Chapter 4: Datatype Mappings for Oracle Sources. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63Oracle Source and Amazon Redshift Target. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 63

Oracle Source and DB2 for Linux, UNIX, and Windows Target. . . . . . . . . . . . . . . . . . . . . . . . . 65

Oracle Source and Greenplum Target. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 69

Oracle Source and Microsoft SQL Server Target. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 71

Oracle Source and MySQL Target. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 74

Oracle Source and Netezza Target. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 77

Oracle Source and Oracle Target. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 79

Oracle Source and Teradata Target. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 84

Oracle Source and Vertica Target. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 87

Unsupported Oracle Datatypes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 90

Chapter 5: Datatype Mappings for Virtual Source Columns. . . . . . . . . . . . . . . . . . . . 91Virtual Column Datatypes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 91

Virtual Source Columns and Amazon Redshift Target Columns. . . . . . . . . . . . . . . . . . . . . . . . 92

Virtual Source Columns and DB2 for Linux, UNIX, and Windows Target Columns. . . . . . . . . . . . 93

Virtual Source Columns and Greenplum Target Columns. . . . . . . . . . . . . . . . . . . . . . . . . . . . 94

Virtual Source Columns and Microsoft SQL Server Target Columns. . . . . . . . . . . . . . . . . . . . . 94

Virtual Source Columns and MySQL Target Columns. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 95

Virtual Source Columns and Netezza Target Columns. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 96

Virtual Source Columns and Oracle Target Columns. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Virtual Source Columns and Teradata Target Columns. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 97

Virtual Source Columns and Vertica Target Columns. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 98

Index. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 99

Table of Contents 5

PrefaceThis Informatica Data Replication Datatype Mapping Reference describes datatype mappings that Data Replication supports for different source and target database combinations.

This guide is intended for system administrators, DBAs, and those who are responsible for configuring and administering data replication jobs.

Informatica Resources

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8 Preface

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C H A P T E R 1

OverviewThis chapter includes the following topics:

• Mapping Reference Overview, 9

• Datatype Mapping Variables and Operators, 9

Mapping Reference OverviewThe Data Replication Datatype Mapping Reference describes recommended datatype mappings for all combinations of supported sources and supported targets other than flat files and target types based on flat files. This reference also includes recommended datatype mappings for the virtual source columns that you use to define Tcl scripts or SQL expressions.

Data Replication uses these datatype mappings to generate a target schema based on a source schema and to replicate CREATE TABLE and ADD COLUMN DDL changes. Data Replication defines the datatype mappings in the DataReplication_installation\uiconf\DataTypes.xml file.

If you create target tables manually, Informatica recommends that you use the target datatypes that are documented in this reference for your source datatypes to perform accurate change data replication.

If a source datatype is not listed, Data Replication either cannot extract data from the source columns with this datatype or cannot apply the extracted data to any appropriate target datatype.

Datatype Mapping Variables and OperatorsThe datatype mappings tables in this publication include expressions for calculating the length of target character datatypes, when the lengths of the target character datatype and source character datatype do not match. Also, if Data Replication allows a source datatype to be mapped to different target datatypes, the datatype mapping tables include mapping conditions for determining the target datatype to use based on

9

precision, scale, or length. To specify these calculations and mapping conditions, Data Replication uses variables and operators.

The following table describes the variables that the datatype mapping tables use to describe mapping conditions and length calculations for target columns:

Variable Description

n The size of the source character datatype.

n' The size of the target character datatype if it is not equal to the source character datatype.

p The precision of the source numeric datatype.

p' The precision of the target numeric datatype if it is not equal to the source numeric datatype.

s The scale of the source numeric datatype.

s' The scale of the target numeric datatype if it is not equal to the source numeric datatype.

SrcMinCharsetSize The minimum number of bytes per character for the source character set.

TgtCharsetSize The number of bytes per character for the target character set

The following table describes the operators that the datatype mapping tables use to describe mapping conditions and length calculations for target columns:

Operator Description

+ Addition. Adds the values that are on both sides of the operator.

- Subtraction. Subtracts the right-hand operand from the left-hand operand.

x Multiplication. Multiplies values on both sides of the operator.

/ Division. Divides the left-hand operand by the right-hand operand.

The following table describes the comparison operators that the datatype mapping tables use to define mapping conditions:


== Verifies whether the two operands are equal.

!= Verifies whether the two operands are not equal.

> Verifies whether the left-hand operand is greater than the right-hand operand.

< Verifies whether the left-hand operand is less than the right-hand operand.

10 Chapter 1: Overview


>= Verifies whether the left-hand operand is greater than or equal to the right-hand operand.

<= Verifies whether the left-hand operand is less than or equal to the right-hand operand.

Datatype Mapping Variables and Operators 11

C H A P T E R 2

Datatype Mappings for DB2 for Linux, UNIX, and Windows Sources

This chapter includes the following topics:

• DB2 for Linux, UNIX, and Windows Source and Amazon Redshift Target, 12

• DB2 for Linux, UNIX, and Windows Source and DB2 Target, 14

• DB2 for Linux, Unix, and Windows Source and Greenplum Target, 16

• DB2 for Linux, UNIX, and Windows Source and Microsoft SQL Server Target, 18

• DB2 for Linux, UNIX, and Windows Source and MySQL Target, 20

• DB2 for Linux, UNIX, and Windows Source and Netezza Target, 22

• DB2 for Linux, UNIX, and Windows Source and Oracle Target, 25

• DB2 for Linux, UNIX, and Windows Source and Teradata Target, 27

• DB2 for Linux, UNIX, and Windows Source and Vertica Target, 30

• Unsupported DB2 Datatypes, 32

DB2 for Linux, UNIX, and Windows Source and Amazon Redshift Target

The following table identifies the recommended datatype mappings for Data Replication configurations with a DB2 for Linux, UNIX, and Windows source and an Amazon Redshift target:

DB2 Source Datatype Amazon Redshift Target Datatype Comments

BIGINT BIGINT -

CHARACTER(n) VARCHAR(n')

n' = (n + SrcMinCharsetSize - 1) / SrcMinCharsetSize x TgtCharsetSize

-

12


CLOB(n) - VARCHAR(65000)

Mapping condition:(65000 < n)

- VARCHAR(n')n' = (n + SrcMinCharsetSize - 1) / SrcMinCharsetSize x TgtCharsetSizeMapping condition:(65000 >= n)

Data Replication does not extract LOB data from compressed rows.

Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.

DATE DATE -

DBCLOB(n) - VARCHAR(65000)


- VARCHAR(n')n' = (n + SrcMinCharsetSize - 1) / SrcMinCharsetSize x TgtCharsetSizeMapping condition:(65000 >= n)



DECFLOAT VARCHAR(45) -

DECIMAL(p,s) - NUMERIC(p,s)

Mapping condition:(p <= 31) and (s <= p) and (0 <= s) and (1 <= p)

- NUMERIC(p,s')s' = 0Mapping condition:(p <= 31) and (s == -1) and (1 <= p)

- NUMERIC(5,0)

Mapping condition:(p == -1) and (s == -1)

-

DOUBLE DOUBLE PRECISION When replicating an 8-byte floating-point numeric value to a DOUBLE PRECISION column on the target, the Applier rounds this value and preserves only 15 digits after the decimal point by default. Use the apply.merge.double_precision runtime parameter to change the default precision value.

GRAPHIC(n) VARCHAR(n')


-

INTEGER INTEGER -

LONG VARCHAR(n) VARCHAR(n')


Data Replication does not extract LONG VARCHAR data from compressed rows.

LONG VARGRAPHIC(n) VARCHAR(n')


Data Replication does not extract LONG VARGRAPHIC data from compressed rows.

DB2 for Linux, UNIX, and Windows Source and Amazon Redshift Target 13


REAL REAL When replicating a 4-byte floating-point numeric value to a REAL column on the target, the Applier rounds this value and preserves only 8 digits after the decimal point by default. Use the apply.merge.float_precision runtime parameter to change the default precision value.

SMALLINT SMALLINT -

TIME TIMESTAMP When replicating a TIME value to a TIMESTAMP column, Data Replication sets the date part of the target TIMESTAMP value to 1 Jan 1900.

TIMESTAMP TIMESTAMP -

VARCHAR(n) VARCHAR(n')


-

VARGRAPHIC(n) VARCHAR(n')


-

DB2 for Linux, UNIX, and Windows Source and DB2 Target

The following table identifies the recommended datatype mappings for Data Replication configurations with a DB2 for Linux, UNIX, and Windows source and a DB2 target:

DB2 Source Datatype DB2 Target Datatype Comments

BIGINT BIGINT -

BLOB(n) BLOB(n) Data Replication does not extract LOB data from compressed rows.


CHAR FOR BIT DATA(n)

CHAR FOR BIT DATA(n) -

CHARACTER(n) CHARACTER(n) -

14 Chapter 2: Datatype Mappings for DB2 for Linux, UNIX, and Windows Sources


CLOB(n) CLOB(n) Data Replication does not extract LOB data from compressed rows.


DATE DATE -

DBCLOB(n) DBCLOB(n')

n' = (n + SrcMinCharsetSize - 1) / SrcMinCharsetSize



DECFLOAT - DECFLOAT(16)

Mapping condition:(p == 8)

- DECFLOAT(34)

Mapping condition:(p == 16)

-

DECIMAL(p,s) - DECIMAL(p,s)


- DECIMAL(p,s')s' = 0Mapping condition:(p <= 31) and (s == -1) and (1 <= p)

- DECIMAL(5,0)


-

DOUBLE DOUBLE -

FLOAT(p) FLOAT(p) -

GRAPHIC(n) GRAPHIC(n')


-

INTEGER INTEGER -

LONG VARCHAR LONG VARCHAR Data Replication does not extract LONG VARCHAR data from compressed rows.

LONG VARGRAPHIC LONG VARGRAPHIC Data Replication does not extract LONG VARGRAPHIC data from compressed rows.

REAL REAL -

DB2 for Linux, UNIX, and Windows Source and DB2 Target 15


SMALLINT SMALLINT -

TIME TIME -

TIMESTAMP TIMESTAMP The Extractor truncates the fractional seconds part of source TIMESTAMP values to nine digits (nanoseconds).

VARCHAR(n) VARCHAR(n) -

VARCHAR FOR BIT DATA(n)

VARCHAR FOR BIT DATA(n) -

VARGRAPHIC(n) VARGRAPHIC(n')


-

DB2 for Linux, Unix, and Windows Source and Greenplum Target

The following table identifies the recommended datatype mappings for Data Replication configurations with a DB2 for Linux, UNIX, and Windows source and a Greenplum target:

DB2 Source Datatype Greenplum Target Datatype Comments

BIGINT BIGINT -

BLOB BYTEA Data Replication does not extract LOB data from compressed rows.


CHARACTER(n) CHAR(n')


-

CHARACTER FOR BIT DATA

BYTEA -



CLOB(n) VARCHAR(n')




DATE DATE -

DBCLOB TEXT Data Replication does not extract LOB data from compressed rows.






- NUMERIC(5,0)


-


GRAPHIC(n) CHAR(n')


-

INTEGER INTEGER -




LONG VARCHAR FOR BIT DATA

BYTEA Data Replication does not extract LONG VARCHAR FOR BIT DATA data from compressed rows.

LONG VARGRAPHIC TEXT Data Replication does not extract LONG VARGRAPHIC data from compressed rows.

DB2 for Linux, Unix, and Windows Source and Greenplum Target 17



SMALLINT SMALLINT -

TIME TIME -




-

VARCHAR FOR BIT DATA

BYTEA -



-

DB2 for Linux, UNIX, and Windows Source and Microsoft SQL Server Target

The following table identifies the recommended datatype mappings for Data Replication configurations with a DB2 for Linux, UNIX, and Windows source and a Microsoft SQL Server target:

DB2 Source Datatype Microsoft SQL Server Target Datatype Comments

BIGINT BIGINT -

BLOB(n) - VARBINARY(n)

Mapping condition:(n >= 1) and (n <= 8000)

- VARBINARY(max)

Mapping condition:(n > 8000)



CHAR(n) CHAR(n) -


BINARY(n) -



CLOB(n) - VARCHAR(n)


- VARCHAR(max)




DATE DATE -

DBCLOB(n) - NVARCHAR(n)


- NVARCHAR(max)








- NUMERIC(5,0)


-

DOUBLE(p) FLOAT(p')

p' = 53-

FLOAT(p) FLOAT(p) -

GRAPHIC(n) NCHAR(n')


-

INTEGER INT -

LONG VARCHAR VARCHAR(max) Data Replication does not extract LONG VARCHAR data from compressed rows.


VARBINARY(max) -

LONG VARGRAPHIC NVARCHAR(max) Data Replication does not extract LONG VARGRAPHIC data from compressed rows.

REAL REAL -

DB2 for Linux, UNIX, and Windows Source and Microsoft SQL Server Target 19


SMALLINT SMALLINT -

TIME TIME -

TIMESTAMP DATETIME2 -

VARCHAR(n) - VARCHAR(MAX)


- VARCHAR(n)

-

VARCHAR FOR BIT DATA

VARBINARY(MAX) -

VARGRAPHIC(n) - NVARCHAR(n)


- NVARCHAR(max)


-

DB2 for Linux, UNIX, and Windows Source and MySQL Target

The following table identifies the recommended datatype mappings for Data Replication configurations with a DB2 for Linux, UNIX, and Windows source and a MySQL target:

DB2 Source Datatype MySQL Target Datatype Comments

BIGINT BIGINT -

BLOB(n) BLOB(n) Data Replication does not extract LOB data from compressed rows.


CHARACTER(n) CHAR(n) -

CHARACTER FOR BIT DATA(n)

BINARY(n) -



CLOB(n) TEXT(n) Data Replication does not extract LOB data from compressed rows.


DATE DATE -

DBCLOB(n) TEXT(n) Data Replication does not extract LOB data from compressed rows.






- DECIMAL(5,0)


-

DOUBLE DOUBLE PRECISION -

FLOAT(p) FLOAT(p) -

GRAPHIC(n) CHAR(n) -

INTEGER INT -

LONG VARCHAR(n) VARCHAR(n) Data Replication does not extract LONG VARCHAR data from compressed rows.

LONG VARCHAR FOR BIT DATA(n)

BLOB(n) -

LONG VARGRAPHIC(n) VARCHAR(n) Data Replication does not extract LONG VARGRAPHIC data from compressed rows.

REAL REAL -

SMALLINT SMALLINT -

TIME TIME -

DB2 for Linux, UNIX, and Windows Source and MySQL Target 21


TIMESTAMP DATETIME -

VARCHAR(n) - VARCHAR(n)

Mapping condition:256 > n

- TEXT(n)

Mapping condition:255 < n

-


- VARBINARY(n)

Mapping condition:(n <= 65000)

- BLOB(n)


-

VARGRAPHIC(n) - VARCHAR(n)

Mapping condition:128 > n

- TEXT(n)


-

DB2 for Linux, UNIX, and Windows Source and Netezza Target

The following table identifies the recommended datatype mappings for Data Replication configurations with a DB2 for Linux, UNIX, and Windows source and a Netezza target:

DB2 Source Datatype Netezza Target Datatype Comments

BIGINT BIGINT -

BLOB(n) - VARCHAR(n)

Mapping condition:n <= 16000

- VARCHAR(16000)

Mapping condition:n > 16000

-

CHAR(n) NCHAR(n')


-



CLOB(n) - NVARCHAR(n')n' = (n + SrcMinCharsetSize - 1) / SrcMinCharsetSize

Mapping condition:((n + SrcMinCharsetSize - 1) / SrcMinCharsetSize) <= 16000

- NVARCHAR(16000)



Maximum extracted size is 50 MB.

DATE DATE -

DBCLOB(n) - NVARCHAR(n')n' = (n + SrcMinCharsetSize - 1) / SrcMinCharsetSize

Mapping condition:((n + SrcMinCharsetSize - 1) / SrcMinCharsetSize) <= 16000

- NVARCHAR(16000)








- NUMERIC(5,0)


-


DB2 for Linux, UNIX, and Windows Source and Netezza Target 23


FLOAT(p) - FLOAT(p')p' = 7Mapping condition:p <= 7

- FLOAT(p')p' = 15Mapping condition:p <= 15

- DOUBLE PRECISION(p')p' = 15Mapping condition:15 < p

When replicating a 4-byte floating-point numeric value to a FLOAT column on the target, the Applier rounds this value and preserves only 8 digits after the decimal point by default. Use the apply.merge.float_precision runtime parameter to change the default precision value.

GRAPHIC(n) NCHAR(n')


-

INTEGER INTEGER -

LONG VARCHAR NVARCHAR(16384) -

LONG VARGRAPHIC NVARCHAR(8192) -


SMALLINT SMALLINT -

TIME TIME -


VARCHAR(n) NVARCHAR(n')


-

VARGRAPHIC(n) NVARCHAR(n')


-


Notes:

• Because the maximum row size for Netezza is 65535 bytes, the Data Replication does not support replication of DB2 LONG VARCHAR and LONG VARGRAPHIC datatypes to Netezza targets.

Workaround: If the source LONG VARCHAR and LONG VARGRAPHIC values are small, and the row size in the audit log table that includes the corresponding before image and after image columns does not exceed the maximum Netezza row size, you can manually generate the target schema. Create a SQL script for generating the target schema based on the source schema from the Data Replication Console. In the script, edit the size of the VARCHAR and NVARCHAR columns that correspond to the source LONG VARCHAR and LONG VARGRAPHIC columns. Then execute the edited script to generate the target schema.

• Because Netezza does not use binary dataypes, Data Replication does not support replication of DB2 BLOB, CHAR FOR BIT DATA, and VARCHAR FOR BIT DATA datatypes to Netezza targets.

DB2 for Linux, UNIX, and Windows Source and Oracle Target

The following table identifies the recommended datatype mappings for Data Replication configurations with a DB2 for Linux, UNIX, and Windows source and an Oracle target:

DB2 Source Datatype Oracle Target Datatype Comments

BIGINT NUMBER(19,0) -

BLOB BLOB Data Replication does not extract LOB data from compressed rows.


CHAR(n) CHAR(n) -


RAW(n) -

CLOB CLOB Data Replication does not extract LOB data from compressed rows.


DATE DATE -

DBCLOB CLOB Data Replication does not extract LOB data from compressed rows.



DB2 for Linux, UNIX, and Windows Source and Oracle Target 25


DECIMAL(p,s) - NUMBER(p,s)


- NUMBER(p,s')s' = 0Mapping condition:(p <= 31) and (s == -1) and (1 <= p)

- NUMBER(5,0)


-

DOUBLE(p) FLOAT(p')

p' = 53When replicating an 8-byte floating-point numeric value to a FLOAT column on the target, the Applier rounds this value and preserves only 15 digits after the decimal point by default. Use the apply.merge.double_precision runtime parameter to change the default precision value.

FLOAT(p) FLOAT(p) -

GRAPHIC(n) VARCHAR2(n) -

INTEGER NUMBER(10,0) -

LONG VARCHAR(n) - VARCHAR2(n)


- CLOB




- RAW(n)


- BLOB


Data Replication does not extract LONG VARCHAR FOR BIT DATA data from compressed rows.

LONG VARGRAPHIC - VARCHAR2


- CLOB


REAL(p) FLOAT(p')

p' = 24When replicating a 4-byte floating-point numeric value to a FLOAT column on the target, the Applier rounds this value and preserves only 8 digits after the decimal point by default. Use the apply.merge.float_precision runtime parameter to change the default precision value.

SMALLINT NUMBER(5,0) -

TIME TIMESTAMP(0) -



TIMESTAMP TIMESTAMP(6) -

VARCHAR(n) - VARCHAR2(n)


- CLOB


-


- RAW(n)


- BLOB


-

VARGRAPHIC(n) - VARCHAR2(n)


- CLOB


-

DB2 for Linux, UNIX, and Windows Source and Teradata Target

The following table identifies the recommended datatype mappings for Data Replication configurations with a DB2 for Linux, UNIX, and Windows source and a Teradata target:

DB2 Source Datatype Teradata Target Datatype Comments

BIGINT BIGINT -

BLOB(n) - VARBYTE(n)

Mapping condition:(16000 >= p)

- VARBYTE(16000)

Mapping condition:(16000 < p)

The target value is truncated to the size that is specified in the apply.mpp_load_lob_truncation_size runtime parameter.

CHAR(n) CHAR(n')


-


BYTE(n) -

DB2 for Linux, UNIX, and Windows Source and Teradata Target 27


CLOB(n) - VARCHAR(n)


- VARCHAR(16000)


The target value is truncated to the size that is specified in the apply.mpp_load_lob_truncation_size runtime parameter.

DATE DATE -

DBCLOB(n) - VARCHAR(n')n' = (n + SrcMinCharsetSize - 1) / SrcMinCharsetSize


- VARCHAR(16000)








- NUMERIC(5,0)


-

DOUBLE FLOAT When replicating an 8-byte floating-point numeric value to a FLOAT column on the target, the Applier rounds this value and preserves only 15 digits after the decimal point by default. Use the apply.merge.double_precision runtime parameter to change the default precision value.

FLOAT(p) FLOAT(p) When replicating an 8-byte floating-point numeric value to a FLOAT column on the target, the Applier rounds this value and preserves only 15 digits after the decimal point by default. Use the apply.merge.double_precision runtime parameter to change the default precision value.

GRAPHIC(n) CHAR(n')


-

INTEGER INTEGER -







BLOB(n) -

LONG VARGRAPHIC(n) VARCHAR(n')



REAL FLOAT When replicating a 4-byte floating-point numeric value to a FLOAT column on the target, the Applier rounds this value and preserves only 8 digits after the decimal point by default. Use the apply.merge.float_precision runtime parameter to change the default precision value.

SMALLINT SMALLINT -

TIME(n) TIME(n) -




-


- VARBYTE(n)


- BLOB(n)


-



-

DB2 for Linux, UNIX, and Windows Source and Teradata Target 29

DB2 for Linux, UNIX, and Windows Source and Vertica Target

The following table identifies the recommended datatype mappings for Data Replication configurations with a DB2 for Linux, UNIX, and Windows source and a Vertica target:

DB2 Source Datatype Vertica Target Datatype Comments

BIGINT INTEGER -

BLOB(p) - VARBINARY(p)


- VARBINARY(65000)




CHARACTER(n) CHAR(n')


-

CHARACTER FOR BIT DATA(n)

VARBINARY(n) -

CLOB(n) - VARCHAR(n')n' = (n + SrcMinCharsetSize - 1) / SrcMinCharsetSize x TgtCharsetSizeMapping condition:(16000 >= p)

- VARCHAR(n')n' = (n + SrcMinCharsetSize - 1) / SrcMinCharsetSize x TgtCharsetSizeMapping condition:((n + SrcMinCharsetSize - 1) / SrcMinCharsetSize x TgtCharsetSize) <= 65000

- VARCHAR(65000)




DATE DATE -

DBCLOB(n) - VARCHAR(n')n' = (n + SrcMinCharsetSize - 1) / SrcMinCharsetSize x TgtCharsetSizeMapping condition:((n + SrcMinCharsetSize - 1) / SrcMinCharsetSize x TgtCharsetSize) <= 65000

- VARCHAR(65000)










- NUMERIC(5,0)


-

DOUBLE FLOAT When replicating an 8-byte floating-point numeric value to a FLOAT column on the target, the Applier rounds this value and preserves only 15 digits after the decimal point by default. Use the apply.merge.double_precision runtime parameter to change the default precision value.

FLOAT(p) FLOAT(p) -

GRAPHIC(n) CHAR(n')


-

INTEGER INTEGER -

LONG VARCHAR(n) - VARCHAR(n')n' = (n + SrcMinCharsetSize - 1) / SrcMinCharsetSize x TgtCharsetSizeMapping condition:((n + SrcMinCharsetSize - 1) / SrcMinCharsetSize x TgtCharsetSize) <= 65000

- VARCHAR(65000)

Mapping condition:((n + SrcMinCharsetSize - 1) / SrcMinCharsetSize x TgtCharsetSize) > 65000



VARBINARY(65000) -

LONG VARGRAPHIC(n) - VARCHAR(n')n' = (n + SrcMinCharsetSize - 1) / SrcMinCharsetSize x TgtCharsetSizeMapping condition:((n + SrcMinCharsetSize - 1) / SrcMinCharsetSize x TgtCharsetSize) <= 65000

- VARCHAR(65000)

Mapping condition:((n + SrcMinCharsetSize - 1) / SrcMinCharsetSize x TgtCharsetSize) > 65000


DB2 for Linux, UNIX, and Windows Source and Vertica Target 31


REAL FLOAT When replicating a 4-byte floating-point numeric value to a FLOAT column on the target, the Applier rounds this value and preserves only 8 digits after the decimal point by default. Use the apply.merge.float_precision runtime parameter to change the default precision value.

SMALLINT INTEGER -

TIME TIME -




-


- VARBINARY(n)


- VARBINARY(65000)


-



-

Unsupported DB2 DatatypesData Replication does not support data extraction for the following DB2 source datatypes:

• Spatial datatypes

• User-defined datatypes

• XML

• Binary datatypes to Amazon Redshift targets


C H A P T E R 3

Datatype Mappings for Microsoft SQL Server Sources


• Microsoft SQL Server Source and Amazon Redshift Target, 33

• Microsoft SQL Server Source and DB2 for Linux, UNIX, and Windows Target, 36

• Microsoft SQL Server Source and Greenplum Target, 40

• Microsoft SQL Server Source and Microsoft SQL Server Target, 43

• Microsoft SQL Server Source and MySQL Target, 46

• Microsoft SQL Server Source and Netezza Target, 49

• Microsoft SQL Server Source and Oracle Target, 53

• Microsoft SQL Server Source and Teradata Target, 57

• Microsoft SQL Server Source and Vertica Target, 60

• Unsupported Microsoft SQL Server Datatypes, 62

Microsoft SQL Server Source and Amazon Redshift Target

The following table identifies the recommended datatype mappings for Data Replication configurations with a Microsoft SQL Server source and an Amazon Redshift target:

Microsoft SQL Server Source Datatype

Amazon Redshift Target Datatype Comments

BIGINT BIGINT -

BIT BOOLEAN -

CHAR(n) VARCHAR(n')


-

DATE DATE -

33



DATETIME TIMESTAMP -

DATETIME2 TIMESTAMP -

DATETIMEOFFSET TIMESTAMP -




- NUMERIC(18,0)


-

FLOAT FLOAT -

INT INTEGER -

MONEY DECIMAL(19,4) -

NCHAR(n) VARCHAR(n')


-

NTEXT VARCHAR(65000) -

NUMERIC(p,s) - NUMERIC(p,s)



- NUMERIC(18,0)


-

NVARCHAR(n) - VARCHAR(n')n' = (n + SrcMinCharsetSize - 1) / SrcMinCharsetSize x TgtCharsetSizeMapping condition:n != -1

- VARCHAR(65000)

Mapping condition:n == -1

-

REAL REAL -

34 Chapter 3: Datatype Mappings for Microsoft SQL Server Sources



SMALLDATETIME TIMESTAMP -

SMALLINT SMALLINT -

SMALLMONEY DECIMAL(10,4) -

SQL_VARIANT VARCHAR(65000) -

SYSNAME(n) - VARCHAR(n)

Mapping condition:n != -1

- VARCHAR(65000)


-

TEXT VARCHAR(65000) -

TIME TIMESTAMP When replicating a TIME value to a TIMESTAMP column, Data Replication sets the date part of the target TIMESTAMP value to 1 Jan 1900.

TIMESTAMP BIGINT -

TINYINT NUMERIC(3,0) -

VARCHAR(n) - VARCHAR(n')n' = (n + SrcMinCharsetSize - 1) / SrcMinCharsetSize x TgtCharsetSizeMapping condition:n != -1

- VARCHAR(65000)


-

XML VARCHAR(65000) -

Microsoft SQL Server Source and Amazon Redshift Target 35

Microsoft SQL Server Source and DB2 for Linux, UNIX, and Windows Target

The following table identifies the recommended datatype mappings for Data Replication configurations with a Microsoft SQL Server source and a DB2 for Linux, UNIX, and Windows target:


DB2 Target Datatype Comments

BIGINT BIGINT -

BINARY(n) - BLOB(1G)

Mapping condition:(n == -1) and (if the apply.db2.create_lob_nologging parameter is set to 0.)

- BLOB(2G) NOT LOGGED


- CHAR FOR BIT DATA(n)

Mapping condition:(n <= 124) and (n != -1)

- BLOB(n)

-

BIT SMALLINT -

CHAR(n) - CHAR(n)


- VARCHAR(n)


-

DATE DATE -










- VARCHAR(42)

Mapping condition:(p > 31)

- DECIMAL(18,0)


-



- DOUBLE

Mapping condition:p > 15 and p <= 53

-

GEOGRAPHY BLOB -

GEOMETRY BLOB -

HIERARCHYID BLOB -

IMAGE - BLOB(2G) NOT LOGGED

Mapping condition:if the apply.db2.create_lob_nologging parameter is set to 1.

- BLOB(1G)



INT INTEGER -


Microsoft SQL Server Source and DB2 for Linux, UNIX, and Windows Target 37



NCHAR(n) - GRAPHIC(n)


- VARGRAPHIC(n)


-

NTEXT - CLOB(2G) NOT LOGGED


- CLOB(1G)



NUMERIC(p,s) - DECIMAL(p,s)



- DECIMAL(18,0)


- VARCHAR(42)

Mapping condition:(p > 31)

-

NVARCHAR(n) - CLOB(2G) NOT LOGGED


- CLOB(1G)


- VARGRAPHIC(n)

Mapping condition:n > 0 and n <= 2023

- CLOB


-

REAL REAL -





SMALLINT SMALLINT -


SQL_VARIANT CLOB -

SYSNAME(n) VARGRAPHIC(n) -

TEXT - CLOB(2G) NOT LOGGED


- CLOB(1G)



TIME TIMESTAMP -

TIME(0) TIME -

TIME(1) TIMESTAMP -

TIME(2) TIMESTAMP -

TIME(3) TIMESTAMP -

TIME(4) TIMESTAMP -

TIME(5) TIMESTAMP -

TIME(6) TIMESTAMP -

TIMESTAMP BIGINT -

TINYINT DECIMAL(3,0) -

UNIQUEIDENTIFIER(n) CHAR FOR BIT DATA(n')

n' = 16-

Microsoft SQL Server Source and DB2 for Linux, UNIX, and Windows Target 39



VARBINARY(n) - BLOB(1G)


- BLOB(2G) NOT LOGGED


- BLOB(n)

-


Mapping condition:(n < 4046) and (n != -1)

- CLOB

Mapping condition:4046 <= n

- CLOB


-

XML XML -

Microsoft SQL Server Source and Greenplum TargetThe following table identifies the recommended datatype mappings for Data Replication configurations with a Microsoft SQL Server source and a Greenplum target:


Greenplum Target Datatype Comments

BIGINT BIGINT -

BINARY BYTEA -

BIT BIT -

CHAR(n) CHAR(n')


-

DATE DATE -






DATETIMEOFFSET TIMESTAMP(6) WITH TIME ZONE -




- NUMERIC(18,0)


-

FLOAT FLOAT When replicating an 8-byte floating-point numeric value to a FLOAT column on the target, the Applier rounds this value and preserves only 15 digits after the decimal point by default. Use the apply.merge.double_precision runtime parameter to change the default precision value.

GEOGRAPHY BYTEA -

GEOMETRY BYTEA -

HIERARCHYID BYTEA -

IMAGE BYTEA Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.

INT INTEGER -


NCHAR(n) CHAR(n')


-

NTEXT TEXT Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.

Microsoft SQL Server Source and Greenplum Target 41






- NUMERIC(18,0)


-

NVARCHAR(n) - VARCHAR(n')n' = (n + SrcMinCharsetSize - 1) / SrcMinCharsetSize


- TEXT


-


SMALLDATETIME TIMESTAMP(0) -

SMALLINT SMALLINT -


SQL_VARIANT TEXT -



- TEXT


-

TEXT TEXT Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.

TIME TIME -

TIMESTAMP BIGINT -




TINYINT NUMERIC(3,0) -

UNIQUEIDENTIFIER - BYTEA- BYTEA

-

VARBINARY BYTEA -

VARCHAR(n) - VARCHAR(n')n' = (n + SrcMinCharsetSize - 1) / SrcMinCharsetSize


- TEXT


-

XML TEXT -

Microsoft SQL Server Source and Microsoft SQL Server Target

The following table identifies the recommended datatype mappings for Data Replication configurations with a Microsoft SQL Server source and a Microsoft SQL Server target:


Microsoft SQL Server Target Datatype Comments

BIGINT BIGINT -

BINARY(n) BINARY(n) -

BIT BIT -

CHAR(n) CHAR(n) -

DATE DATE -

DATETIME DATETIME -

DATETIME2 DATETIME2 -

DATETIMEOFFSET DATETIMEOFFSET -

Microsoft SQL Server Source and Microsoft SQL Server Target 43






- DECIMAL(18,0)


-

FLOAT FLOAT -

GEOGRAPHY GEOGRAPHY -

GEOMETRY GEOMETRY -

HIERARCHYID HIERARCHYID -

IMAGE IMAGE Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.

INT INT -

MONEY MONEY -

NCHAR(n) NCHAR(n) -

NTEXT NTEXT Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.




- NUMERIC(18,0)


-




NVARCHAR(n) - NVARCHAR(n)


- NVARCHAR(MAX)


-

REAL REAL -

SMALLDATETIME SMALLDATETIME -

SMALLINT SMALLINT -

SMALLMONEY SMALLMONEY -

SQL_VARIANT SQL_VARIANT -

SYSNAME(n) NVARCHAR(n')


-


TIME TIME -

TIME(0) TIME(0) -

TIME(1) TIME(1) -

TIME(2) TIME(2) -

TIME(3) TIME(3) -

TIME(4) TIME(4) -

TIME(5) TIME(5) -

TIME(6) TIME(6) -

TIMESTAMP BIGINT -

TINYINT TINYINT -

UNIQUEIDENTIFIER UNIQUEIDENTIFIER -

Microsoft SQL Server Source and Microsoft SQL Server Target 45



VARBINARY(n) - VARBINARY(n)


- VARBINARY(MAX)


-



- VARCHAR(MAX)


-

XML XML -

Microsoft SQL Server Source and MySQL TargetThe following table identifies the recommended datatype mappings for Data Replication configurations with a Microsoft SQL Server source and a MySQL target:


MySQL Target Datatype Comments

BIGINT BIGINT -

BINARY(n) - BINARY(n)

Mapping condition:(n <= 255) and (n != -1)

- BLOB


- BLOB


-

BIT TINYINT -

CHAR(n) - CHAR(n)


- TEXT(n)


-

DATE DATE -




DATETIME DATETIME -

DATETIME2 DATETIME -

DATETIMEOFFSET DATETIME -




- DECIMAL(18,0)


-



- FLOAT

Mapping condition:p > 15

-

GEOGRAPHY BLOB -

GEOMETRY BLOB -

HIERARCHYID BLOB -

IMAGE BLOB Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.

INT INT -


NCHAR(n) - CHAR(n)


- TEXT(n)


-

Microsoft SQL Server Source and MySQL Target 47



NTEXT TEXT Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.

NUMERIC(p,s) - DECIMAL(p,s)



- DECIMAL(18,0)


-

NVARCHAR(n) - VARCHAR(n)


- TEXT


-

REAL REAL -

SMALLDATETIME DATETIME -

SMALLINT SMALLINT -


SQL_VARIANT TEXT -



- TEXT


-


TIME TIME -

TIME(0) TIME -

TIME(1) TIME -




TIME(2) TIME -

TIME(3) TIME -

TIME(4) TIME -

TIME(5) TIME -

TIME(6) TIME -

TIMESTAMP BIGINT -

TINYINT SMALLINT -

UNIQUEIDENTIFIER BINARY(16) -



- BLOB


-



- TEXT


-

XML TEXT -

Microsoft SQL Server Source and Netezza TargetThe following table identifies the recommended datatype mappings for Data Replication configurations with a Microsoft SQL Server source and a Netezza target:


Netezza Target Datatype Comments

BIGINT BIGINT -

BINARY(n) VARCHAR(n) -

BIT BYTEINT -

Microsoft SQL Server Source and Netezza Target 49



CHAR(n) NCHAR(n')


-

DATE DATE -







- NUMERIC(18,0)


-



- FLOAT


When replicating an 8-byte floating-point numeric value to a FLOAT column on the target, the Applier rounds this value and preserves only 15 digits after the decimal point by default. Use the apply.merge.double_precision runtime parameter to change the default precision value.

GEOGRAPHY VARCHAR(16000) -

GEOMETRY VARCHAR(16000) -

HIERARCHYID VARCHAR(16000) -

IMAGE VARCHAR(16000) Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.

INT INTEGER -

MONEY NUMERIC(19,4) -




NCHAR(n) NCHAR(n')


-

NTEXT NVARCHAR(16000) Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.




- NUMERIC(18,0)


-

NVARCHAR(n) - NVARCHAR(n')n' = (n + SrcMinCharsetSize - 1) / SrcMinCharsetSize


- NVARCHAR(16000)


-



SMALLINT SMALLINT -

SMALLMONEY NUMERIC(10,4) -

SQL_VARIANT NVARCHAR(8000) -

SYSNAME(n) - NVARCHAR(n)


- NVARCHAR(16000)


-

Microsoft SQL Server Source and Netezza Target 51



TEXT NVARCHAR(16000) Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.

TIME TIME -

TIME(0) TIME -

TIME(1) TIME -

TIME(2) TIME -

TIME(3) TIME -

TIME(4) TIME -

TIME(5) TIME -

TIME(6) TIME -

TIMESTAMP BIGINT -

TINYINT SMALLINT -

UNIQUEIDENTIFIER VARCHAR(40) -

VARBINARY(n) - VARCHAR(n')n' = (n + SrcMinCharsetSize - 1) / SrcMinCharsetSize


- VARCHAR(16000)


-

VARCHAR(n) - NVARCHAR(n')n' = (n + SrcMinCharsetSize - 1) / SrcMinCharsetSize


- NVARCHAR(16000)


-


Because Netezza does not use binary dataypes, Data Replication does not support replication of Microsoft SQL Server binary, varbinary, and varbinary(max) datatypes to Netezza targets.


Microsoft SQL Server Source and Oracle TargetThe following table identifies the recommended datatype mappings for Data Replication configurations with a Microsoft SQL Server source and an Oracle target:


Oracle Target Datatype Comments

BIGINT NUMBER(19,0) -

BINARY BLOB -

BIT NUMBER(1) -

CHAR(n) - CHAR(n')n' = (n + SrcMinCharsetSize - 1) / SrcMinCharsetSize

Mapping condition:(n + SrcMinCharsetSize - 1) / SrcMinCharsetSize <= 2000

- VARCHAR2(n')n' = (n + SrcMinCharsetSize - 1) / SrcMinCharsetSize

Mapping condition:2000 < (n + SrcMinCharsetSize - 1) / SrcMinCharsetSize and (n + SrcMinCharsetSize - 1) / SrcMinCharsetSize <= 4000

- CLOB

Mapping condition:4000 < (n + SrcMinCharsetSize - 1) / SrcMinCharsetSize

To support national character data, the Data Replication Console defines the Oracle VARCHAR2 column size by using character length semantics.

DATE DATE -

DATETIME TIMESTAMP(3) -

DATETIME2(p) TIMESTAMP(p) -

Microsoft SQL Server Source and Oracle Target 53



DATETIMEOFFSET - TIMESTAMP(0) WITH TIME ZONE

Mapping condition:s == 0

- TIMESTAMP(1) WITH TIME ZONE














-

DECIMAL(p,s) - NUMBER(p,s)



- NUMBER(18,0)


-

FLOAT - BINARY_DOUBLE

Mapping condition:p <= 7

- BINARY_DOUBLE

Mapping condition:p <= 15

- BINARY_DOUBLE


-

GEOGRAPHY BLOB -

GEOMETRY BLOB -




HIERARCHYID BLOB -

IMAGE BLOB Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.

INT NUMBER(10,0) -

MONEY NUMBER(19,4) -

NCHAR(n) - NCHAR(n')n' = (n + SrcMinCharsetSize - 1) / SrcMinCharsetSize

Mapping condition:(n + SrcMinCharsetSize - 1) / SrcMinCharsetSize <= 2000

- NVARCHAR2(n')n' = (n + SrcMinCharsetSize - 1) / SrcMinCharsetSize

Mapping condition:2000 < (n + SrcMinCharsetSize - 1) / SrcMinCharsetSize and (n + SrcMinCharsetSize - 1) / SrcMinCharsetSize <= 4000

- NCLOB

Mapping condition:4000 < (n + SrcMinCharsetSize - 1) / SrcMinCharsetSize

-

NTEXT(n) - NCLOB- CLOB(n)


NUMERIC(p,s) - NUMBER(p,s)



- NUMBER(18,0)


-

Microsoft SQL Server Source and Oracle Target 55



NVARCHAR(n) - NVARCHAR2(n')n' = (n + SrcMinCharsetSize - 1) / SrcMinCharsetSize

Mapping condition:0 < n and (n + SrcMinCharsetSize - 1) / SrcMinCharsetSize <= 4000

- NCLOB

Mapping condition:n == -1 || 4000 < (n + SrcMinCharsetSize - 1) / SrcMinCharsetSize

-

REAL BINARY_FLOAT -


SMALLINT NUMBER(5,0) -

SMALLMONEY NUMBER(10,4) -

SQL_VARIANT CLOB -

SYSNAME(n) NVARCHAR2(n) -

TEXT CLOB Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.

TIME(p) TIMESTAMP(p) -

TIMESTAMP NUMBER(25,0) -

TINYINT NUMBER(3,0) -

UNIQUEIDENTIFIER RAW(16) -

VARBINARY BLOB -

VARCHAR(n) - VARCHAR2(n')n' = (n + SrcMinCharsetSize - 1) / SrcMinCharsetSize

Mapping condition:(n + SrcMinCharsetSize - 1) / SrcMinCharsetSize <= 4000 and n != -1

- CLOB

Mapping condition:n == -1 || 4000 < (n + SrcMinCharsetSize - 1) / SrcMinCharsetSize

To support national character data, the Data Replication Console defines the Oracle VARCHAR2 column size by using character length semantics.

XML CLOB -


Microsoft SQL Server Source and Teradata TargetThe following table identifies the recommended datatype mappings for Data Replication configurations with a Microsoft SQL Server source and a Teradata target:


Teradata Target Datatype Comments

BIGINT BIGINT -

BINARY(n) BYTE(n) -

BIT SMALLINT -

CHAR(n) CHAR(n')


-

DATE DATE -


DATETIME2 TIMESTAMP(6) -





- NUMERIC(18,0)


-



- FLOAT


-

GEOGRAPHY VARBYTE(16000) -

GEOMETRY VARBYTE(16000) -

HIERARCHYID VARBYTE(16000) -

Microsoft SQL Server Source and Teradata Target 57



IMAGE VARBYTE(16000) The target value is truncated to the size that is specified in the apply.mpp_load_lob_truncation_size runtime parameter.

INT INTEGER -


NCHAR(n) CHAR(n')


-

NTEXT VARCHAR(16000) The target value is truncated to the size that is specified in the apply.mpp_load_lob_truncation_size runtime parameter.




- NUMERIC(18,0)


-

NVARCHAR(n) - VARCHAR(n')n' = (n + SrcMinCharsetSize - 1) / SrcMinCharsetSize


- VARCHAR(16000)


-

REAL(p) FLOAT(p')

p' = 7When replicating a 4-byte floating-point numeric value to a FLOAT column on the target, the Applier rounds this value and preserves only 8 digits after the decimal point by default. Use the apply.merge.float_precision parameter to change the default precision value.


SMALLINT SMALLINT -








- VARCHAR(16000)


-

TEXT VARCHAR(16000) -

TIME(n) - TIME(n)

Mapping condition:s <= 6

- TIME(6)

Mapping condition:s > 6

-

TIMESTAMP BIGINT -

TINYINT SMALLINT -

UNIQUEIDENTIFIER BYTE(16) -

VARBINARY(n) - VARBYTE(n)


- VARBYTE(16000)


-

VARCHAR(n) - VARCHAR(n')n' = (n + SrcMinCharsetSize - 1) / SrcMinCharsetSize


- VARCHAR(16000)


-

XML VARCHAR(16000) The target value is truncated to the size that is specified in the apply.mpp_load_lob_truncation_size runtime parameter.

Microsoft SQL Server Source and Teradata Target 59

Microsoft SQL Server Source and Vertica TargetThe following table identifies the recommended datatype mappings for Data Replication configurations with a Microsoft SQL Server source and a Vertica target:


Vertica Target Datatype Comments

BIGINT INTEGER -

BINARY(n) BINARY(n) -

BIT INTEGER -

CHAR(n) CHAR(n')


-

DATE DATE -


DATETIME2 TIMESTAMP(6) -





- NUMERIC(18,0)


-

FLOAT FLOAT When replicating an 8-byte floating-point numeric value to a FLOAT column on the target, the Applier rounds this value and preserves only 15 digits after the decimal point by default. Use the apply.merge.double_precision parameter to change the default precision value.

GEOGRAPHY VARBINARY(65000) -

GEOMETRY VARBINARY(65000) -

HIERARCHYID VARBINARY(65000) -

IMAGE VARBINARY(65000) Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.




INT INTEGER -


NCHAR(n) CHAR(n')


-

NTEXT VARCHAR(65000) Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.




- NUMERIC(18,0)


-

NVARCHAR(n) - VARCHAR(n')n' = (n + SrcMinCharsetSize - 1) / SrcMinCharsetSize x TgtCharsetSizeMapping condition:n != -1

- VARCHAR(65000)


-

REAL FLOAT -


SMALLINT INTEGER -





- VARCHAR(128)


-

Microsoft SQL Server Source and Vertica Target 61



TEXT VARCHAR(65000) Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.

TIME TIME -

TIMESTAMP BIGINT -

TINYINT INTEGER -

UNIQUEIDENTIFIER BINARY(16) -



- VARBINARY(65000)


-

VARCHAR(n) - VARCHAR(n')n' = (n + SrcMinCharsetSize - 1) / SrcMinCharsetSize x TgtCharsetSizeMapping condition:n != -1

- VARCHAR(65000)


-


Unsupported Microsoft SQL Server DatatypesData Replication does not support data extraction for the following Microsoft SQL Server source datatypes:

• filestream

• rowversion

• sql_variant

• timestamp

• user-defined datatypes

• binary and spatial datatypes to Amazon Redshift targets


C H A P T E R 4

Datatype Mappings for Oracle Sources


• Oracle Source and Amazon Redshift Target, 63

• Oracle Source and DB2 for Linux, UNIX, and Windows Target, 65

• Oracle Source and Greenplum Target, 69

• Oracle Source and Microsoft SQL Server Target, 71

• Oracle Source and MySQL Target, 74

• Oracle Source and Netezza Target, 77

• Oracle Source and Oracle Target, 79

• Oracle Source and Teradata Target, 84

• Oracle Source and Vertica Target, 87

• Unsupported Oracle Datatypes, 90

Oracle Source and Amazon Redshift TargetThe following table identifies the recommended datatype mappings for Data Replication configurations with an Oracle source and an Amazon Redshift target:

Oracle Source Datatype


BINARY_DOUBLE NUMERIC(37,15) -

BINARY_FLOAT NUMERIC(37,15) -

CHAR(n) VARCHAR(n')


-

CLOB VARCHAR(65000) -

DATE TIMESTAMP -

63



FLOAT NUMERIC(37,15) -

LONG VARCHAR(65000) -


n' = (n + 1) / 2 x TgtCharsetSize-

NCLOB VARCHAR(65000) -

NUMBER(p,s) - NUMERIC

Mapping condition:p == -1 and s == -1

- NUMERIC(38, 0)

Mapping condition:p == -1 and s == 0

- SMALLINT

Mapping condition:p <= 4 and s == 0

- INTEGER


- BIGINT


- NUMERIC(p,s)

Mapping condition:p > 18 and s == 0

- NUMERIC(p,s)

Mapping condition:p != 0 and s != 0

-

NVARCHAR(n) VARCHAR(n')


NVARCHAR2(n) VARCHAR(n')


TIMESTAMP(0) TIMESTAMP -






64 Chapter 4: Datatype Mappings for Oracle Sources









-

VARCHAR2(n) VARCHAR(n')


-

Oracle Source and DB2 for Linux, UNIX, and Windows Target

The following table identifies the recommended datatype mappings for Data Replication configurations with an Oracle source and a DB2 for Linux, UNIX, and Windows target:



BINARY_DOUBLE DOUBLE -

BINARY_FLOAT VARCHAR(50) -

BLOB - BLOB(2G) NOT LOGGED


- BLOB(1G)



Oracle piecewise operations are supported only for inline LOBs.

If the global.lob_truncation_size runtime parameter is set to 64000 bytes or less, InitialSync handles BLOB data as RAW data to improve performance.

CHAR(n) - CHAR(n)


- CLOB(n)


-

Oracle Source and DB2 for Linux, UNIX, and Windows Target 65



CLOB - CLOB(2G) NOT LOGGED


- CLOB(1G)




DATE TIMESTAMP -

FLOAT VARCHAR(50) -

LONG - CLOB(2G) NOT LOGGED


- CLOB(1G)




LONG RAW - BLOB(2G) NOT LOGGED


- BLOB(1G)




NCHAR(n) - GRAPHIC(n')n' = (n + SrcMinCharsetSize - 1) / SrcMinCharsetSize x TgtCharsetSizeMapping condition:(n + SrcMinCharsetSize - 1) / SrcMinCharsetSize x TgtCharsetSize <= 254

- CLOB(n)


-




NCLOB - CLOB(2G) NOT LOGGED


- CLOB(1G)


- DBCLOB(2G) NOT LOGGED


- DBCLOB(1G)




NUMBER(p,s) - DECIMAL(31, 10)


- DOUBLE

Mapping condition:p > 31 and s != -1

- DECIMAL(31, 0)


- SMALLINT


- INTEGER


- BIGINT


- DECIMAL(p,s)


- DECIMAL(p,s)


-

NVARCHAR(n) VARGRAPHIC(n')


-

Oracle Source and DB2 for Linux, UNIX, and Windows Target 67



NVARCHAR2(n) VARGRAPHIC(n')


-

RAW - BLOB(2G) NOT LOGGED


- BLOB(1G)














VARCHAR2(n) VARCHAR(n) Oracle piecewise operations are supported only for inline LOBs.


Oracle Source and Greenplum TargetThe following table identifies the recommended datatype mappings for Data Replication configurations with an Oracle source and a Greenplum target:





BLOB BYTEA Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.



CHAR(n) CHAR(n')


-

CLOB TEXT Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.


DATE TIMESTAMP(0) -


LONG TEXT Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.


LONG RAW BYTEA Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.


Oracle Source and Greenplum Target 69





-

NCLOB TEXT Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.


NUMBER(p,s) - NUMERIC


- NUMERIC(39, 0)


- SMALLINT


- INTEGER


- BIGINT


- NUMERIC(p,s)


- NUMERIC(p,s)


-



-



-

RAW BYTEA The target value is truncated to the size that is specified in the apply.mpp_load_lob_truncation_size runtime parameter.


TIMESTAMP(0) TIMESTAMP(0) -















-




Oracle Source and Microsoft SQL Server TargetThe following table identifies the recommended datatype mappings for Data Replication configurations with an Oracle source and a Microsoft SQL Server target:



BINARY_DOUBLE FLOAT -

BINARY_FLOAT FLOAT -

BLOB IMAGE Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.



CHAR(n) CHAR(n) -

Oracle Source and Microsoft SQL Server Target 71



CLOB TEXT Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.


DATE DATETIME -

FLOAT FLOAT -

LONG TEXT Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.


LONG RAW IMAGE Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.


NCHAR(n) NCHAR(n')


-

NCLOB NTEXT Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.





NUMBER(p,s) - FLOAT


- NUMERIC(38, 0)


- SMALLINT


- INT


- BIGINT


- NUMERIC(p,s)


- NUMERIC(p,s)


-

NVARCHAR(n) NVARCHAR(n')


-

NVARCHAR2(n) NVARCHAR(n')


-

RAW(n) VARBINARY(n) Oracle piecewise operations are supported only for inline LOBs.

TIMESTAMP(0) DATETIME2(0) -









Oracle Source and Microsoft SQL Server Target 73





VARCHAR2(n) VARCHAR(n) Oracle piecewise operations are supported only for inline LOBs.

XMLTYPE XML -

Oracle Source and MySQL TargetThe following table identifies the recommended datatype mappings for Data Replication configurations with an Oracle source and a MySQL target:



BINARY_DOUBLE DOUBLE -

BINARY_FLOAT DOUBLE -

BLOB BLOB Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.



CHAR(n) - CHAR(n)

Mapping condition:n < 256

- TEXT

Mapping condition:n >= 256

-

CLOB LONGTEXT Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.


DATE DATETIME -




FLOAT DOUBLE -

LONG LONGTEXT Maximum supported size is 8 KB.


LONG RAW BLOB Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.


NCHAR(n) - VARCHAR(n)


- TEXT


-

NCLOB LONGTEXT Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.




- DECIMAL(38, 0)


- SMALLINT


- INT


- BIGINT


- DECIMAL(p,s)


- DECIMAL(p,s)


-

Oracle Source and MySQL Target 75



NVARCHAR(n) - VARCHAR(n)


- TEXT


-

NVARCHAR2(n) - VARCHAR(n)


- TEXT


-

RAW(n) VARBINARY(n) Oracle piecewise operations are supported only for inline LOBs.

TIMESTAMP(0) DATETIME -












- TEXT


-

VARCHAR2(n) - VARCHAR(n)


- TEXT




Oracle Source and Netezza TargetThe following table identifies the recommended datatype mappings for Data Replication configurations with an Oracle source and a Netezza target:



BINARY_DOUBLE DOUBLE PRECISION When replicating an 8-byte floating-point numeric value to a DOUBLE PRECISION column on the target, the Applier rounds this value and preserves only 15 digits after the decimal point by default. Use the apply.merge.double_precision runtime parameter to change the default precision value.

BINARY_FLOAT DOUBLE PRECISION When replicating an 8-byte floating-point numeric value to a DOUBLE PRECISION column on the target, the Applier rounds this value and preserves only 15 digits after the decimal point by default. Use the apply.merge.double_precision runtime parameter to change the default precision value.

BLOB VARCHAR(32768) If the global.lob_truncation_size runtime parameter is set to 64000 bytes or less, InitialSync handles BLOB data as RAW data to improve performance.

CHAR(n) NCHAR(n')


-

CLOB NVARCHAR(16000) Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.


DATE TIMESTAMP -


LONG NVARCHAR(16000) Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.


LONG RAW VARCHAR(32768) -

NCHAR(n) NCHAR(n')


-

Oracle Source and Netezza Target 77



NCLOB NVARCHAR(16000) Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.


NUMBER(p,s) - NUMERIC(38, 10)


- NUMERIC(38, 0)


- SMALLINT


- INTEGER


- BIGINT


- NUMERIC(p,s)


- NUMERIC(p,s)


-



-

NVARCHAR2(n) NVARCHAR(n')


Maximum length of Netezza NVARCHAR datatype is 16000 characters.

RAW(n) VARCHAR(n) -














VARCHAR(n) NVARCHAR(n')


-

VARCHAR2(n) NVARCHAR(n')


Maximum length of Netezza VARCHAR datatype is 64000 characters.


Because Netezza does not use binary dataypes, Data Replication does not support replication of Oracle BLOB, LONG RAW, and RAW datatypes to Netezza targets.

Oracle Source and Oracle TargetThe following table identifies the recommended datatype mappings for Data Replication configurations with an Oracle source and an Oracle target:



BINARY_DOUBLE BINARY_DOUBLE When replicating an 8-byte floating-point numeric value to a BINARY_DOUBLE column on the target, the Applier rounds this value and preserves only 15 digits after the decimal point by default. Use the apply.merge.double_precision runtime parameter to change the default precision value.

BINARY_FLOAT BINARY_FLOAT When replicating an 8-byte floating-point numeric value to a BINARY_FLOAT column on the target, the Applier rounds this value and preserves only 15 digits after the decimal point by default. Use the apply.merge.double_precision runtime parameter to change the default precision value.

Oracle Source and Oracle Target 79



BLOB BLOB Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.

Oracle piecewise operations are supported for SQL Apply mode only.

BLOB columns are not supported for Oracle to Oracle replication in Merge Apply mode.


CHAR(n) CHAR(n')


-

CLOB CLOB CLOB columns are not supported for Oracle to Oracle replication in Merge Apply mode.



DATE DATE -

FLOAT(p) FLOAT(p) -

INTERVAL DAY TO SECOND

INTERVAL DAY (%s) TO SECOND (%s) -




INTERVAL YEAR TO MONTH

- INTERVAL YEAR(1) TO MONTH

Mapping condition:p == 1

















-

LONG CLOB Oracle piecewise operations are supported for SQL Apply mode only.

Maximum supported size is 8 KB.

LONG columns are not supported for materializing Oracle targets with DBLinks.

For Merge Apply mappings, map source columns with the LONG datatype to target columns with the VARCHAR(40000) datatype.

LONG RAW BLOB Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.


LONG RAW columns are not supported for materializing Oracle targets with DBLinks.

NCHAR(n) NCHAR(n')


-




NCLOB NCLOB NCLOB columns are not supported for Oracle to Oracle replication in Merge Apply mode.



NUMBER(p,s) - NUMBER


- NUMBER(*, 0)


- NUMBER(p,s)

Mapping condition:p != 0 and s == 0

- NUMBER(p,s)


-



-

NVARCHAR2(n) NVARCHAR2(n')


-

RAW(n) RAW(n) Oracle piecewise operations are supported for SQL Apply mode only.


TIMESTAMP(0) WITH LOCAL TIME ZONE

TIMESTAMP(0) WITH LOCAL TIME ZONE -

TIMESTAMP(0) WITH TIME ZONE

TIMESTAMP(0) WITH TIME ZONE Oracle TIMESTAMP WITH TIME ZONE in the time zone region (TZR) format is not supported.

















-

VARCHAR2(n) VARCHAR2(n')



Oracle Source and Teradata TargetThe following table identifies the recommended datatype mappings for Data Replication configurations with an Oracle source and a Teradata target:



BINARY_DOUBLE DOUBLE PRECISION When replicating an 8-byte floating-point numeric value to a DOUBLE PRECISION column on the target, the Applier rounds this value and preserves only 15 digits after the decimal point by default. Use the apply.merge.double_precision runtime parameter to change the default precision value.

BINARY_FLOAT DOUBLE PRECISION When replicating an 8-byte floating-point numeric value to a DOUBLE PRECISION column on the target, the Applier rounds this value and preserves only 15 digits after the decimal point by default. Use the apply.merge.double_precision runtime parameter to change the default precision value.

BLOB VARBYTE(16000) Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.






CHAR(n) CHAR(n')


-

CLOB VARCHAR(16000) Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.


DATE TIMESTAMP(0) Mappings to Teradata TIME and DATE datatypes are not supported.

FLOAT DECIMAL(38, 10) -

LONG VARCHAR(16000) Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.


LONG RAW VARBYTE(16000) Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.




-

NCLOB VARCHAR(16000) Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.


Oracle Source and Teradata Target 85




Mapping condition:p == -1 and s == -1 and tgt_version < 14

- NUMBER

Mapping condition:p == -1 and s == -1 and tgt_version > 13

- DECIMAL(38, 0)


- SMALLINT


- INTEGER


- DECIMAL(p,s)


- DECIMAL(p,s)


-



-



-

RAW(n) VARBYTE(n) -
















-




Oracle Source and Vertica TargetThe following table identifies the recommended datatype mappings for Data Replication configurations with an Oracle source and a Vertica target:





BLOB VARBINARY(64000) The Extractor truncates the replicated value to 50 MB. The Applier truncates the replicated value to the size that is specified in the apply.mpp_load_lob_truncation_size runtime parameter.



CHAR(n) CHAR(n')


-

CLOB VARCHAR(65000) Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.


DATE TIMESTAMP(0) -

Oracle Source and Vertica Target 87




LONG VARCHAR(64000) Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.


LONG RAW VARBINARY(64000) Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.




-

NCLOB VARCHAR(65000) Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.


NUMBER(p,s) - NUMERIC(37, 10)


- NUMERIC(39, 0)


- INTEGER


- INTEGER


- INTEGER


- NUMERIC(p,s)


- NUMERIC(p,s)


-






-



-

RAW(n) VARBINARY(n) Use the global.lob_truncation_size runtime parameter to set the maximum size of a source LOB value that the Applier and InitialSync can replicate to the target. Maximum supported size for change data capture is 50 MB.


TIMESTAMP(0) TIMESTAMP For Vertica targets, the maximum number of fractional digits in the seconds field is 6.












-




Oracle Source and Vertica Target 89

Unsupported Oracle DatatypesData Replication does not support data extraction for the following Oracle source datatypes:

• ANY types

• BFILE

• Expression Filter Types

• Extended types

• Media types

• MLSLABEL

• REF

• ROWID

• Spatial types

• TIMESTAMP WITH LOCAL TIMEZONE

• URI types

• UROWID

• User-defined types

• XML type

• Binary datatypes to Amazon Redshift targets

Data Replication supports the following Oracle datatypes only for Oracle to Oracle replication:

• INTERVAL DAY TO SECOND

• INTERVAL YEAR TO MONTH

• TIMESTAMP WITH TIMEZONE


C H A P T E R 5

Datatype Mappings for Virtual Source Columns


• Virtual Column Datatypes, 91

• Virtual Source Columns and Amazon Redshift Target Columns, 92

• Virtual Source Columns and DB2 for Linux, UNIX, and Windows Target Columns, 93

• Virtual Source Columns and Greenplum Target Columns, 94

• Virtual Source Columns and Microsoft SQL Server Target Columns, 94

• Virtual Source Columns and MySQL Target Columns, 95

• Virtual Source Columns and Netezza Target Columns, 96

• Virtual Source Columns and Oracle Target Columns, 97

• Virtual Source Columns and Teradata Target Columns, 97

• Virtual Source Columns and Vertica Target Columns, 98

Virtual Column DatatypesThe following table describes the virtual column datatypes:

Datatype Description

BIGINT Big integers.Storage size: 8 bytesRange of values: -2^63 (-9223372036854775808) through 2^63-1 (9223372036854775807)

DATE Combined date and time value.Date format for Tcl scripts: yyyy-mm-dd hh:mm:ssDate format for SQL expressions: target database format

DECIMAL(p,s) Decimal numbers with the declared precision and scale. Scale must be less than or equal to precision.Valid precision values: 1 through 38Valid scale values: 0 through 38

91

Datatype Description

DOUBLE Double-precision floating-point numbers.Storage size: 8 bytesRange of values: -7.2E+75 through 7.2E+75

FLOAT Single-precision floating-point numbers.Storage size: 4 bytesRange of values: -3.40E + 38 through -1.18E - 38, 0 and 1.18E - 38 through 3.40E + 38

INTEGER Large integers.Storage size: 4 bytesRange of values: -2^31 (-2147483648) through 2^31 - 1 (2147483647)

NVARCHAR(n) Variable-length Unicode data.Valid length values: 1 through 4000 bytes

TIMESTAMP(f) Date and time value that includes the year, month, day, hour, minutes, and seconds.Timestamp format for Tcl scripts: yyyy-mm-dd hh:mm:ss ffTimestamp format for SQL expressions: target database formatThe f value is the number of digits in the fractional part of seconds.Valid fractional seconds precision values: 0 through 9

VARCHAR(n) Variable-length non-Unicode data.Valid length values: 1 through 4000 bytes

Virtual Source Columns and Amazon Redshift Target Columns

The following table identifies the recommended datatype mappings for virtual source columns and Amazon Redshift target columns:

Virtual Source Datatype


BIGINT BIGINT -

DATE TIMESTAMP WITHOUT TIME ZONE -

DECIMAL(p,s) NUMERIC(p,s) -


FLOAT REAL -

INTEGER INTEGER -

NVARCHAR(n) CHARACTER VARYING(n) -

92 Chapter 5: Datatype Mappings for Virtual Source Columns



TIMESTAMP TIMESTAMP WITHOUT TIME ZONE -

VARCHAR(n) CHARACTER VARYING(n) -

Virtual Source Columns and DB2 for Linux, UNIX, and Windows Target Columns

The following table identifies the recommended datatype mappings for virtual source columns and DB2 target columns:



BIGINT DECIMAL(19) -

DATE TIMESTAMP -

DECIMAL(p,s) - DECIMAL(31, 10)


- DECFLOAT(34)

Mapping condition:p > 31 and s != -1

- DECIMAL(31, 0)


- DECIMAL(p,s)

-

DOUBLE - DOUBLE- DECFLOAT

-

FLOAT DOUBLE -

INTEGER DECIMAL(10) -

NVARCHAR(n) VARGRAPHIC(n) -



Virtual Source Columns and DB2 for Linux, UNIX, and Windows Target Columns 93

Virtual Source Columns and Greenplum Target Columns

The following table identifies the recommended datatype mappings for virtual source columns and Greenplum target columns:



BIGINT BIGINT -

DATE TIMESTAMP WITHOUT TIME ZONE -



FLOAT REAL -

INTEGER INTEGER -

NVARCHAR(n) CHARACTER VARYING(n) -

TIMESTAMP TIMESTAMP WITHOUT TIME ZONE -

VARCHAR(n) CHARACTER VARYING(n) -

Virtual Source Columns and Microsoft SQL Server Target Columns

The following table identifies the recommended datatype mappings for virtual source columns and Microsoft SQL Server target columns:



BIGINT BIGINT -

DATE DATETIME -

DECIMAL(p,s) DECIMAL(p,s) -

DOUBLE FLOAT(53) -

FLOAT REAL -

INTEGER INT -

NVARCHAR(n) NVARCHAR(n) -




TIMESTAMP - DATETIME2(0)


- DATETIME2(1)


- DATETIME2(2)


- DATETIME2(3)


- DATETIME2(4)


- DATETIME2(5)


- DATETIME2(6)


- DATETIME2(7)


- DATETIME2(7)

-


Virtual Source Columns and MySQL Target ColumnsThe following table identifies the recommended datatype mappings for virtual source columns and MySQL target columns:



BIGINT BIGINT -

DATE DATETIME -

DECIMAL(p,s) DECIMAL(p,s) -


FLOAT FLOAT -

Virtual Source Columns and MySQL Target Columns 95



INTEGER INT -

NVARCHAR(n) VARCHAR(n) -

TIMESTAMP DATETIME -


Virtual Source Columns and Netezza Target Columns

The following table identifies the recommended datatype mappings for virtual source columns and Netezza target columns:



BIGINT BIGINT -

DATE DATE -



FLOAT REAL -

INTEGER INTEGER -

NVARCHAR(n) NVARCHAR(n) -


VARCHAR(n) NVARCHAR(n) -


Virtual Source Columns and Oracle Target ColumnsThe following table identifies the recommended datatype mappings for virtual source columns and Oracle target columns:



BIGINT NUMBER(19, 0) -

DATE DATE -

DECIMAL(p,s) NUMBER(p,s) -

DOUBLE FLOAT(64) -

FLOAT REAL -

INTEGER NUMBER(10, 0) -

NVARCHAR(n) NVARCHAR2(n) -


VARCHAR(n) VARCHAR2(n) -

Virtual Source Columns and Teradata Target Columns

The following table identifies the recommended datatype mappings for virtual source columns and Teradata target columns:



BIGINT DECIMAL(20, 0) -

DATE TIMESTAMP(0) -


Mapping condition:p <= 38 and s <= 10

- DECIMAL(38, 10)


-


FLOAT FLOAT -

Virtual Source Columns and Oracle Target Columns 97



INTEGER INTEGER -




Virtual Source Columns and Vertica Target ColumnsThe following table identifies the recommended datatype mappings for virtual source columns and Vertica target columns:



BIGINT BIGINT -

DATE DATE -


DOUBLE FLOAT -

FLOAT FLOAT -

INTEGER INTEGER -





Index

AAmazon Redshift targets

mappings with DB2 sources 12mappings with Microsoft SQL Server sources 33mappings with Oracle sources 63mappings with virtual columns 92

DDB2 sources

mappings with Amazon Redshift targets 12mappings with DB2 targets 14mappings with Greenplum targets 16mappings with Microsoft SQL Server targets 18mappings with MySQL targets 20mappings with Netezza targets 22mappings with Oracle targets 25, 27mappings with Vertica targets 30unsupported datatypes 32

DB2 targets mappings with DB2 sources 14mappings with Microsoft SQL Server sources 36mappings with Oracle sources 65mappings with virtual columns 93

GGreenplum targets


Mmapping conditions

for mapping to target datatypes 10Microsoft SQL Server sources

mappings with Amazon Redshift targets 33mappings with DB2 targets 36mappings with Greenplum targets 40mappings with Microsoft SQL Server targets 43mappings with MySQL targets 46mappings with Netezza targets 49mappings with Oracle targets 53mappings with Teradata targets 57mappings with Vertica targets 60unsupported datatypes 62

Microsoft SQL Server targets mappings with DB2 sources 18mappings with Microsoft SQL Server sources 43mappings with Oracle sources 71

Microsoft SQL Server targets (continued)mappings with virtual columns 94

MySQL targets mappings with DB2 sources 20mappings with Microsoft SQL Server sources 46mappings with Oracle sources 74mappings with virtual columns 95

NNetezza targets


OOracle sources

mappings with Amazon Redshift targets 63mappings with DB2 targets 65mappings with Greenplum targets 69mappings with Microsoft SQL Server targets 71mappings with MySQL targets 74mappings with Netezza targets 77mappings with Oracle targets 79mappings with Teradata targets 84mappings with Vertica targets 87unsupported datatypes 90

Oracle targets mappings with DB2 sources 25mappings with Microsoft SQL Server sources 53mappings with Oracle sources 79mappings with virtual columns 97

TTeradata targets


VVertica targets


virtual columns mappings with Amazon Redshift targets 92

99

virtual columns (continued)mappings with DB2 targets 93mappings with Greenplum targets 94mappings with Microsoft SQL Server targets 94mappings with MySQL targets 95

virtual columns (continued)mappings with Netezza targets 96mappings with Oracle targets 97mappings with Teradata targets 97mappings with Vertica targets 98

100 Index

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