51975127 Excelent Scenarios and Faq s of Informatica (1)

7/28/2019 51975127 Excelent Scenarios and Faq s of Informatica (1)

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Informatica Interview QuestionsALL-Interview.com

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How to list Top 10 salary, without using Rank Transmission?

what is the economic comparison of all the Informatica versions?

what is Data Ware Housing?

How to create slowly changing dimension in informatica?

How do you handle two sessions in Informatica

How to implement de-normalization concept in Informatica Mappings?

Do v use any tool for Handling Performance tuning in real time?

What's the difference between source and target object definitions in Informatica?

What is the advantages of converting stored procedures into Informatica mappings?

What is the purpose of using UNIX commands in informatica. Which UNIX commands are generally used with informatica?

Explain about scheduling real time in informatica

What is the difference between SQL Overriding in Source qualifier and Lookup transformation?

How do you define fact less Fact Table in Informatica?

Does Informatica provide a SAS exit in any of its products?

What is the role/use of unix in informatica

What is informatica

What is informatica power

how much hike in the 6th pay commission for my basic pay of rs.5500?

Difference between data mining and data warehousing

What is MODEL is Data mining world?

How can we load the normalized data ( Vertical data) to (Horizontal data)with out using decode in the expression
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transformation and the aggregator transformation.

how to do estimation before staring development in project. Here estimation in the sense how many associates arerequired, etc to complete the project.

What are the ETL tools available in DWH?

Diff b/w Shortcut and reusable Object ?

how we do performance tuning in informatics

What is 'Power Center Push down Optimization Option' in INFORMATICA?

How to deal with it without changing mapping?

What is "Change cache" in Informatics?

can we create index and drop index in existing table while using informatica

If we are using an aggregate but forget to mention the group by port .what will be the output??

Informatics software installation 8.1/7.1.3/7.1 with oracle 10g database (optional Teradata v2R6)

How/where can i install Informatics software with oracle or teradata as database

How to transform normalized data to denormalized form in informatics? Is there any logic or any transformations to achievethis?

why do we go for update strategy tr in SCD rather using the session properties?

How many mapplets u have created? and what is the logic used

LOOKUP Condition is nothing but a Join condition? What type of join condition it,by default?Using the Look UP ConditionHow many types of relational conditions we can make

Dependency Errors in Informatica?Do u got any dependency problems while running session?

What is Throughput in Informatics,How it works, Where I can find this option to check?

Please explain in detail with example about 1.Confirmed Dimension. 2.Junk Dimension. 3.Degenerated Dimension.

4.Slowly changing Dimensions

How can i catch the Duplicate Rows From Sorter Trans in a Separate Target Table ?

how can we perform incremental aggregation?explain with example?

difference between shortcut and reusable transformation
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difference between source based commit? and target based commit? which is better with respect to performance?

What is Target Update Override? What is the Use ?

What is a Shortcut and What is the difference between a Shortcut and a Reusable Transformation?

why sequence generator should not directly connected to joiner transformation ?

How to create a mapping ? id date 101 2/4/2008 101 4/4/2008 102 6/4/2008 102 4/4/2008 103 4/4/2008 104 8/4/2008 O/P- shuould have only one id with the min(date) How to create a mapping for this

How Schedule the Informatica job in "Unix Corn Scheduling tool" ?

How upload the Mainframe source For Informatics ?

what is the difference between persistence and dynamic caches? On which conditions we are using these caches?

Change Data Capture in Informatics,using Incremental Aggregation.How we identify the these data in Target table.

What are set operators in Oracle

what is the Source File limitation in Informatica?how many flat file we can use as a source in a mapping if.. 1) The Structureof flat files are same & 2) If the Structure of flat files are different

How generate Sequence Numbers to Target Table (with out using Sequence Gen Trans,Rank Trans).

How scd will work ?

When we load flat files into target tables how do we identify duplicates? and where do load the duplicate records for further

reference?

How do we do change data capture? Is this Slowly changing Dimension technique?

What is the difference between Connected and Unconnected Look up Transformation.Give one or two examples

what are the difference between active and passive transformation with some examples.

What is a flat file and how to use flat file in informatica

What is a surrogate key?Why we use it in a mapping?

How Union Transformation is an Active Trans

What are partitions in informatics and which one is used for better performance?

when we develop a project what are the performance issue will raise??

if a table have INDEX and CONSTRAINT why it raise the performance issue bcoz when we drop the index and disable the
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constraint it performed better?

what are UNIX commands frequently used in informatics?

what is diff between grep and find

Can we use different look up transformations for a same look up table (look up condition may or may not be same)withdifferent output ports?How the cache files will be affected?

Diff B/W MAP Parameter,SESSION Parameter, Database connection session parameters.?Its possible to Create3parameters at a time?If Possible which one will fire FIRST?

Which is costliest transformation? costly means occupying more memory?

how to run two work flow(not a sessions) sequentially, what is the process. explain detailed information.

how to run 2 work flows sequentially. respond what is the process?

what is the monster dimension give me one example

Which gives the more performance when compare to fixed width and delimited file ?and why?

What are the challenges of Data Warehousing in the future?

why we use source qualifier transformation?

when we go for unconnected look up transformation? and why?

installation procedure for power center 8.1.1 especially domain_con fig how to use parameter files

Is it passive or active when check and unchecked the box of DISTINCT in Sorter transformation? why?

explain about sales project in informatica

After we make a folder shared can it be reversed?Why?

Transformer is a __________ stage option1:Passive 2.Active 3.Dynamic 4.Static

need for registering a repository server

How to display First letter of Names in Caps?

How to merge First Name & Last Name

How to retrieve last two days updated records?

How to get EVEN & ODD numbers separately?
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How to extract original records at one target & Duplicate records at one target?

How to display null values on a target & non-null values on a target?

How to update records in Target, without using Update Strategy?

Is it possible to have "5 source & 5 Target" in single mapping?

Without using Look up & Sequence Generator, How to generate Sequence?

In joiner, how to load Master table in Target?

How to compare Source and Target table, without using dynamic look up?

How to join 2 tables, without using any condition?

Without source how to insert record to target?

How to find from a source which has 10,000 records, find the average between 500th to 600th record?

how will you remove the duplicate records from flat file without using sorter?

how will you get 21 to 30 record from 50 records?

How will you combine 3 different sources with a single source?

How will you display 10-15 letters from a name? (for ex: name="sivasubram'aniam'ramakrishnan". o/p wanted="aniam")

How will you display "Mr" for male & "Mrs" for female in target table?

how to join the two flat files using the joiner t/r if there is no matching port?

How many cubes create from a single model?

What is the difference between Oracle performance and Informatics Performance? Which performance is better?

how to declare array in plsql?

what is plsql table?

what is the difference between lookup override and joiner?

How to send duplicates to one target and unique rows to one target?target is empty

How to delete duplicate records in a flat file source?

What is a poling?
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How to load a relational source into file target?

What are the phases in SDLC?

How the Informatica Server reads parameter file?

How to load relational source into file target?

What is A complex mapping?

What is a data modeling?

how to move the mappings from your local machine to Clint place?

Difference between filter and router?

what are the parameter and variable

What is the difference between procedure and stored procedure?

what is the diff b/w target load plan and cbl?

how can u load the data in time dimension?

what is the diff b/w union and joiner and look up?

what is the process we used in joiner transformation,there is no matching column in sources?

what is the process of target load planing?

what is lookup override?

how many types transformations supported by sorted input?

How to delete duplicate record in Informatics?

What is the difference between Junk and Confirmed Dimension? where can be used that one in Informatica?

What is the difference between Bitmap and Btree index?

how to calculate the optimum cache size in aggregate transformation?

what target override?what advantages it has compare to target update

what is cdc? how to use it in creation of mappings?

how do we create datamart?
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7/34

we r using aggregator with out using group by?

daily how much amount of data send to production?

How to write a procedure for a date which is in three different formats,and you want to load into data warehouse in anysingle date format

Ho to handle changing source file counts in a mapping?

what is mapping optimization? what are the techniques for that

how to obtain performance data for individual transformations.

can a port in expression transfer be given the name DISTINCT

task is running successfully but data is not loaded why?

what is galaxy repository?

what is mean by grouping of condition column in look up transformation?

in reporting we add some new objects,how we get the count of the newly added objects to the report

how can u generate sequence of values in which target has more than 2billion of records.

how can u connect client to Ur informatica sever if server is located at different place( not local to the client)

what is upstream and downstream transformation?

what are testing in a mapping level please give brief explanation

how to load duplicate row in a target

how can u tune u r informatica mappings

how can u approach u r client

which quality process u can approach in ur project

what is difference b/w joiner and union transformation

What is the "File Repository" and how can we use that in the Informatica ? give one example of the Process ?

how to run the batch using pmcmd command

What is the main data object present in between source and target
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8/34

What is the term PIPELINE in informatica ?

What is checksum terminology in informatica? Where do you use it ?

how to load only the first and last record of a flat file into the target?

All active transformations r passive or not?

which T/r we can use it mapping parameter and mapping variable? and which one is reusable for any mapping mappingparameter or mapping variable?

what r the properties of work flow? and write query to select dept more ten employees in dept.?

what is file list concept in informatica

how can we update without using update transformation.wt is push down operation in informatica.which look up gives moretuning performance. if so why

what we require for D.modeling?

what transformations are used for Variable port?

how tokens will generate?

.prm with replace .txt is possible?

what is Dynamic look up Transformation? when we use?how we use?

what is inline view? when and why we Use

How to generate the HTML output using Informatica.

how to work with mapplet designer in informatica?

what is full process of Information source to target just like stg to production and development

what are the differences between power center 8.1 and power center 8.5?

What will happen when Mapping variable and Mapping parameter is not defined or given? Where do you use mappingvariable and mapping parameter?

how can we load 365 flat file to a single fact table (target) as a history load in single mapping?

differences between Informatica 7.1 and 8.1?

why u go for dimensions ?

how many tasks are there in informatica ?
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9/34

what is incremental loading ?

how do u get the first record from 50,000 records ?

in which situations do u go for sequence generator ?

in which situations do u go for scds ?

in which situations do u go for starflake schema ?

in which situations do u go for snowflake schema ?

What is Use of Factless Fact Table ? Why we use Factless Fact Schema in the Projects?

WHAT IS TEXT LOAD?

HOW DO U IMPLEMENT SCHEDULING IN INFORMATICA?

WHAT IS THE MEANING OF UPGRADATION OF REPOSITORY?

What is the actual work done in Development and in the production depts in building a data warehouse. Which dept is moreinteresting and career oriented

how to duplicates from expression transformation without using sorter before that

difference between stop and abort

how can v eliminate duplicate values from look up without overriding sql?

can we update records in target using update strategy without generating primary key ? explain

if we have duplicate records in a table temp n now i want to pass unique values to t1 n duplicate values to t2 in singlemapping?how

how do u use sequence created in oracle in informatics? Explain with an simple example

what is dimension table?

what is fact table?

whether Sequence generator T/r uses Caches? then what type of Cache it is

what is shared Cache. when we will use shared Cache?

explain different types of modeling.

how u know when to use a static cache and dynamic cache in look up transformation.
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10/34

what is the tracing level? and difference between trace in normal and verbose and non verbose?

how much memory (size) occupied by a session at run time

how DTM buffer size and buffer block size are related

why cant we put a sequence generator or up strategy transformation before joiner transformation?

In Real Time what are the scenarios u faced, what r the tough situations u have overcome, and explain about sessions

In Real Time what are the scenarios u faced, what r the tough situations u have overcome, and explain about sessions.

What is difference between Informatica 6.2 Work flow and Informatica Work flow 7.1

What is a diff between joiner and look up transformation

Without using any transformations how u can load the data into target?

why we need to use unconnected transformation?

where we can static cache,dynamic cache

What is incremental aggregation and how it is done?

How could we generate the sequence of key values without using sequence generator transformation in the target ??

In a scenario I want to change the dimensions of a table and normalize the denomralized table which transformation can Iuse?

Why is meant by direct and indirect loading options in sessions?

what is the logic will you implement to load data into a fact table from n dimension tables?

How will u pass the data with out debugger?

How will u find weather dimension table is big in size of a fact table?

explain the scenario for bulk loading and the normal loading option in Informatica Work flow manager ???

What is Fact less fact table ?

what is the (UTC) unit test cases with the examples in informatica

Whats the difference between $,$$,$$$

From where we can start or use pmcmd?
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11/34

In real time scenario where can we use mapping parameters and variables?

By using Filter Transformation,How to pass rows that does not satisfy the condition(discarded rows) to another target?

THREE DATE FORMATS R THERE . HOW TO CHANGE THESE THREE INTO ONE FORMAT WITHOUT USINGEXPRESSION TRANSFORMATION ?

A TABLE CONTAINS SOME NULL VALUES.HOW TO GET (NOT APPLICABLE(NA)) IN PLACE OF THAT NULL VALUEIN TARGET?

ONE FLAT FILE IS THERE WHICH IS COMMA DELIMETED,HOW TO CHANGE THAT COMMA DELIMITER TO ANYOTHER AT THE TIME OF RUNNING?

two tables from two different databases r there,both having same structure but different data,how to compare these twotables ?

TWO FLAT FILES ARE THERE , EACH HAVING NO MATCHING COLUMNS . HOW CAN U JOIN THESE TWO USINGJOINER TRANSFORMATION ?

IN SCD TYPE 1 WHAT IS THE ALTERNATIVE TO THAT LOOKUP TRANSFORMATION ?

explain how to use Normalizer transformation for the following scenario Source table | Target Table | Std_name ENG MATART | Subject Ramesh Himesh Mahesh Ramesh 68 82 78 | ENG 68 73 81 Himesh 73 87 89 | MAT 82 87 79 Mahesh 81 7964 | ART 78 89 64 | explain what should be the normalizer column(s) The GCID column 2)Also explain the Ni-or-1 rule.

what is Fact table Partitioning?

How to use the Oracle Analytic functions in Informatica

WHAT IS FACT TABLES?

WHAT IS UPDATE OVERRIDE,DIFFERENCE BETWEEN SQL OVERRIDE AND UPDATE OVERRIDE ?

HOW DO YOU CONNECT TO REMOTE SERVER?

WHAT IS THE NAME OF THAT PORT IN DYNAMIC CACHE WHICH IS USED FOR INSERT,UPDATE OPERATION ?

HOW DO YOU PERFORM INCREMENTAL LOAD?

what are the reusable tasks in informatica ?

if a session is failed after a transformation,from where that session will run again , i.e . from beginning or from thattransformation

what is the function of 'F10' informatica?

HOW TO GET THE LATEST DATA IN SCD ?

two types of data are there ,one is mainframe and the other is ASCII format . in informatica how can you get both the data ina single format in ASCII .
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in unconnected look up , what are the other transformations , that can be used in place of that expression transformation ?

what are the transformations that are used in data cleansing ? and how data cleansing takes place ?

how many Fact Tables and Dimensions Table you have used in the Project? Which one is loaded first Fact Table orDimensions Table into the warehouse? What is the size of the Fact Table and Dimension Table? what is the size of thetable and warehouse

Is Flat File Contains the Dynamic Cache

what r the transformations that r not involved in mapplet?

What are differences between Informatica 7.1 and 6.1

Can you use one mapping to populate two tables in different schemas

How do you take care of security using a repository manager

if the session fails after 100 records again we have to starts the session or we go for recovery session

how the server recognizes , if the session fails after loading the 100 records in to the target

what is the difference between onsite & client site?

what is unit testing & how it is done?

what is metadata?

how do u tune queries?

what is scd?

difference between connected and unconnected lookups?

what happens when a batch fails?

what is parallel querying and what r hints

what r the values that r passed between informatics server and stored procedure?

What is version controlling in informatica?

What is scd methodology?

surrogate keys usage in Oracle and Informatica?

What is star and snowflake schema?
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51975127 Excelent Scenarios and Faq s of Informatica (1)

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