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537

Index

Symbols

* (asterisk), in SQL, 171? (question mark), parameter markers, 268\ (backward slash), in system variables, 64, 91‘’ (single quotation marks), character string

delimiters, 1432.6 kernel

installation problems on, 83troubleshooting installation, 526

A

ACID (atomicity, consistency, isolation, anddurability) compliance, 14

addBatch( ) method, 245, 273ADD COLUMN clause, 155ADD CONSTRAINT clause, 155ADD PRIMARY KEY statement, 155ADD UNIQUE statement, 155

administration, 101backups, 101

offline backup, 104-105online backup with built-in copy,

102-103online backup with read-only access,

103-104restoring from, 105

compressing tables, 119connection options, 43-45consistency checks, 112-113data movement operations, 105-106

exporting data, 109-111importing data, 106-109

performance issues, 113collecting statistics, 113-115timing information in statistics,

115-118afterLast( ) method, 254after triggers, 225

Zikopoulos_Index.qxd 9/28/05 1:48 PM Page 537

538 Index

algorithm values for encryptionAlgorithmoption, 125-126

aliases, 189allocating dynamic SQL statements (JDBC

application development), 244-246ALL quantified predicate, 202ALTER statement, 139ALTER TABLE statement, 155-156

check constraints, 162-163Anderson, Jean, 4answer sets, 244

accessing in random order, 533dynamically determining (JDBC

application development), 264-267exporting data, 110-111modifying data with (JDBC application

development), 274-279multiple result sets, 288retrieving

JDBC application development, 252-258

Perl application development, 450-451PHP application development, 416-417Python application development,

494-495retrieving column values (JDBC

application development), 258-264stored procedures, 281, 284-287

ANY quantifed predicate, 202Apache Derby

advantages of, 3-5application development, 23-24attributes, network server connections, 241business perspective, 10-11, 15-17community hierarchy, 7-9components of, 21

Apache Derby database engine, 21Apache Derby network server, 21-22ij tool, 22-23

database administration. See databaseadministration

database engine, 21databases. See databasesdeployment model, 25

embedded framework, 25-31server framework, 32-36

differences from IBM Cloudscape, 3-7features of, 17-19history of, 1-3IBM support for, 2installing on Linux, 75-76

manual installation, 90-93migrating from previous versions, 76post-installation file structure, 98-99preparations for, 76-81troubleshooting installation, 96-98verifying installation, 93-96

installing on Windows, 49-50manual installation, 63-66migrating from previous versions, 50post-installation file structure, 72-73preparations for, 50-55troubleshooting installation, 70-72verifying installation, 67-69

licensing, 5performance tuning, 526-527security. See securitySQL support in, 19-21technical perspective, 11

Apache Derby Charter, 19Apache Derby Network Server, 21-22

applets, 299-301cataloging, 311communication with, 307

CLI, 307DRDA protocol, 307ODBC, 308Perl/PHP/Python extensions, 308


Index 539

connections (JDBC application development), 240-244

IBM DB2 JDBC Universal driver, 237-238installing DB2 Runtime Client, 308-311server framework deployment model,

32-36troubleshooting, 533

Apache incubator projects, 5Apache License, 5applets (JDBC application development),

299-301application development, 23-24t

JDBC application development, 233-234allocating dynamic SQL statements,

244-246applets, 299-301batch methods, 274batch processing, 273-274database connections, 238-239dynamically determining result sets,

264-267embedded JDBC drivers, 236-237executing dynamic SQL statements,

246-248IBM DB2 JDBC Universal driver,

237-238import statements, 235-236inserting and updating large objects,

279-281locking issues, 302-305modifying data with result sets, 274-279network server connections, 240-244prepared statements, 268-272program structure, 234-235retrieving column values, 258-264retrieving result sets, 252-258SQLExceptions versus SQLWarnings,

251-252stored procedures, 281-288

transactions, 272trapping SQLExceptions, 248-250troubleshooting, 532-535UDFs (user-defined functions), 288-299

Perl application developmentconnection pooling, 446-447database connections, 445-446disconnecting from database, 446GUI interfaces, 467-472large object (LOB) data types, 456-458module usage, 444running scripts from command line, 445SQL statements, 447-454transaction management, 454-455Web interfaces, 459-465

PHP application development, 411connection pooling, 413database connections, 412-413disconnecting from database, 413large object (LOB) data types, 424-425running scripts from command line,

411-412SQL statements, 414-421transaction management, 421-424Web interfaces, 426-436

Python application developmentconnection pooling, 491-492database connections, 490disconnecting from database, 491GUI interfaces, 512-518large object (LOB) data types, 501-503module usage, 489-490running scripts from command line, 490SQL statements, 492-499transaction management, 499-501Web interfaces, 503-512

arrays (PHP), 396-397. See also sequences(Python)

asterisk (*), in SQL, 171


540 Index

authentication, 126-128, 313built-in authentication, 130-132, 528LDAP directory service authentication,

128-129precedence of authentication levels, 528remote authentication, 528user-defined authentication, 129

authorization, 132-133authorization identifiers, 126-127autocommit( ) method, 500-501autocommit settings, 534

JDBC application development, 272Perl application development, 455PHP application development, 423-424

automatic global arrays (PHP), 427autonumbering. See identity columnsAVG function, 194

B

backups, 101offline backup, 104-105online backup with built-in copy, 102-103online backup with read-only access,


backward slash (\), in system variables, 64, 91basic predicates, 173batch methods (JDBC application

development), 274batch processing (JDBC application

development), 273-274bCalendar( ) method (YMLD example

application), 344beforeFirst( ) method, 253begin_work( ) method, 454beginTransaction( ) method, 422BETWEEN predicate, 175

BIGINT data type, 141binary large objects. See BLOBsbinary string data types, 144bind_columns( ) method, 450bind_param( ) method, 449bind_param_inout( ) method, 451, 458bindColumn( ) method, 424binding parameters to prepared statements

(Perl application development), 449bindParam( ) method, 419, 425blob_read( ) method, 456BLOBs (binary large objects), 145. See

also LOBsinserting/updating, 534

Boolean data typePHP, 395-396Python, 476-477

booting encrypted databases, 527bootPassword parameter, 43, 123break statement

PHP, 401, 404Python, 483

built-in authentication, 130-132, 528built-in functions, 191business perspective

Apache Derby, 15-17open source, 10-11

C

cached connections (Perl), 446calculated columns. See derived columnscallers

Perl scripts, 459PHP scripts, 426Python scripts, 504

calling stored procedures, 284callproc( ) method, 496-497


Index 541

Call Level Interface. See CLICALL statement, 284Cartesian product, 179-181cascading triggers, 225CASE expressions, 204-205, 532case-sensitivity

of database names, 312of user IDs/passwords, 130

casting functions, 192CAST function, 190cataloging

Apache Derby Network Server, 311databases, 311-312

CGI (Common Gateway Interface), 426GET/POST variable handling


504-507cgi module (Python application

development), 504CGI.pm module (Perl application

development), 439, 459CHAR data type, 140, 143character data types, 46. See also string

data typescharacter large objects, 145check constraints, 157, 161-163classes, creating

PHP, 404-406Python, 484-485

CLASSPATH system variablesetting, 62-66, 90-93troubleshooting, 70-71, 96-97

clearBatch( ) method, 245, 273clearWarnings( ) method, 252CLI (Call Level Interface), 307

Perl/PHP/Python extensions, 308

ClickButton method (YMLD example application), 378-381

CLOBs (character large objects), 145, 530.See also LOBs

inserting/updating, 534close method, 245, 491closing

dynamic SQL statements, 245statements, 533

Cloudscapedifferences from Apache Derby, 3-7history of, 1-3installing on Linux, 75-76

with installation program, 81-90manual installation, 90-93migrating from previous versions, 76post-installation file structure, 98-99preparations for, 76-81troubleshooting installation, 96-98verifying installation, 93-96

installing on Windows, 49-50with installation program, 55-63manual installation, 63-66migrating from previous versions, 50post-installation file structure, 72-73preparations for, 50-55troubleshooting installation, 70-72verifying installation, 67-69

licensing, 6SQL support in, 19-21support contract, 6

CLOUDSCAPE_INSTALL environment variable, setting, 62-65, 90-91

CLR (Common Language Runtime), 52column functions, 191-194

restriction with, 195-196column values, retrieving (JDBC application

development), 258-264

Zikopoulos_Index.qxd 9/28/05 1:48 PM 41

542 Index

columns, 46command line, running scripts from

Perl, 445PHP, 411-412Python, 490

commit( ) method, 422, 454, 500COMMIT statement, 231-232

JDBC application development, 272committers, 8-9Common Gateway Interface. See CGICommon Language Runtime (CLR), 52comparison operators

PHP, 399in predicates, 173Python, 481

Comprehensive Perl Archive Network(CPAN), 439

compressing tables, 119conditions

PHP, 399Python, 481

configuringPerl

on Linux, 442-443on Windows, 443-444

PHPon Linux, 409-410on Windows, 410-411

Pythonon Linux, 488on Windows, 489

Confirm_Click( ) method (YMLD exampleapplication), 384

connect( ) method, 445, 490connection contexts, stored procedures, 281connection handles, 308

Connection objects (Python)database connections, 490disconnecting from database, 491transaction management, 499-501

connection optionsenvironment, 45maintenance, 43-45security, 43

connection poolingPerl application development, 446-447PHP application development, 413Python application development, 491-492

connection URL, creating databases, 39connections

Apache Derby Network Server. See ApacheDerby Network Server

establishing (JDBC application development), 238-239

Perl application development, 445-446connection pooling, 446-447disconnections, 446

PHP application development, 412-413connection pooling, 413disconnections, 413

from procedures, 535Python application development, 490

connection pooling, 491-492disconnections, 491

testing, 312troubleshooting, 526uncataloged database connections, 313YMLD example application, 327-329,

360-364consistency checks, 112-113constraints, 156, 168

ADD CONSTRAINT clause, 155check constraints, 161-163


Index 543

DROP CONSTRAINT clause, 156referential integrity constraints, 157-161unique constraints, 157UPDATE statement, 217

continue statementPHP, 404Python, 483

contributors, 8control structures

PHP, 399break statement, 404continue statement, 404do/while loops, 399-400foreach loops, 402-403for loops, 401-402if/elseif/else structures, 400switch structures, 401while loops, 399-400

Python, 481break statement, 483continue statement, 483for loops, 482-483if/elif/else structure, 482pass statement, 483while loops, 481-482

converting data types, 260correlated subqueries, 201correlation names, 186-187COUNT function, 194

DISTINCT keyword, 198CPAN (Comprehensive Perl Archive

Network), 439CREATE FUNCTION statement, 223,

292-293CREATE INDEX statement, 169CREATE PROCEDURE statement, 230-231,

282-284

CREATE SCHEMA statement, 148, 222CREATE statement, 139CREATE TABLE statement, 147-148CREATE TRIGGER statement, 227CREATE VIEW statement, 165-166createFrom parameter, 44createStatement( ) method, 244-245CURRENT_DATE function, 150CURRENT_SCHEMA function, 150CURRENT_TIMESTAMP function, 150CURRENT_TIME function, 150CURRENT_USER function, 150cursor( ) method, 492Cursor objects (Python), SQL statements

calling stored procedures, 495-499issuing, 492

with different parameters, 493-494with placeholders, 492

retrieving result sets, 494-495cursor stability isolation level, 302cursors, 276

D

Data Control Language. See DCLData Definition Language. See DDLData Manipulation Language. See DMLdata movement operations, 105-106


data truncation, preventing in ij tool, 114data types, 46, 140

binary string data types, 144converting, 260date and time data types, 145-147importance of, 530


544 Index

large objects (LOBs), 144-145, 530Perl application development, 456-458PHP application development, 424-425Python application development,

501-503manipulating, 534modifiers, 148

default values, 149-151identity columns, 151-153null values, 149

numeric data types, 140-142PHP data types

arrays, 396-397Boolean, 395-396numeric, 396strings, 397-399

promotion, 190Python data types

Boolean, 476-477dictionaries, 480-481numeric, 477-478sequences, 478-479strings, 479-480

setNull( ) method, 278-279SQL data types

versus Java data types, 258, 366versus ODBC data types, 385

stored procedures, 281string data types, 140-144

database administration, 101backups, 101

offline backup, 104-105online backup with built-in copy,

102-103online backup with read-only access,


compressing tables, 119connection options, 43-45consistency checks, 112-113data movement operations, 105-106


performance issues, 113collecting statistics, 113-115timing information in statistics, 115-118

database connectionsApache Derby Network Server. See Apache

Derby Network Serverestablishing (JDBC application

development), 238-239Perl application development, 445-446


PHP application development, 412-413connection pooling, 413disconnections, 413

from procedures, 535Python application development, 490


testing, 312troubleshooting, 526uncataloged database connections, 313YMLD example application, 327-329,

360-364database handles (Perl)

connection pooling, 446-447database connections, 445-446disconnecting from database, 446SQL statements

calling stored procedures, 451-454issuing, 447


Index 545

issuing with prepared statements, 447-449

retrieving result sets, 450-451transaction management, 454-455

database installation, verifying, 67, 93-94database name attribute, network server

connections, 241database objects, 528. See also data types;

indexes; procedures; schemas; tables; triggers; views

CREATE statement, 139definition of, 37DROP statement, 140list of, 37, 45, 135privileges, 163schemas, 221-223size limitations, 38system catalog tables, 163-164

database statistics. See statisticsdatabase-level authentication, precedence, 528database-level authorization, 132-133database-level users

built-in authentication, 131versus system-level users, precedence

of, 132database-wide properties, 127databases

cataloging, 311-312connection options

environment, 45maintenance, 43-45security, 43

creating, 39-41, 529deleting, 41, 529directory structure, 37-38encrypted databases, booting, 527encryption, 527

generated files, 41naming, 39-40, 312, 529security. See securitysystem tables, list of, 41-42testing connections, 312troubleshooting, 528-529uncataloged connections, 313

dataEncryption parameter, 43, 123date and time data types, 46, 145-147DATE data type, 145-146date functions, 193DB2 JDBC drivers. See IBM DB2 JDBC

Universal driverDB2 Runtime Client, installing, 308-311DB2 Universal Database (DB2 UDB), 2DBD:DB2 (Perl module), 440DBI (Perl module), 439DCL (Data Control Language), 135DDL (Data Definition Language), 135-138

ALTER statement, 139ALTER TABLE statement, 155-156constraints, 156

check constraints, 161-163referential integrity constraints, 157-161unique constraints, 157

CREATE statement, 139CREATE TABLE statement, 147-148data types, 140

binary string data types, 144date and time data types, 145-147large object data types, 144-145numeric data types, 140-142string data types, 140-144

data type modifiers, 148default values, 149-151identity columns, 151-153null values, 149

DECLARE statement, 138-140, 153-154


546 Index

DROP statement, 140DROP TABLE statement, 156indexes, 167-169system catalog tables, 163-164views, 165-167

DECIMAL data type, 46, 142DECLARE statement, 138-140, 153-154, 530declaring variables

PHP, 395Python, 476

default values, data type modifiers, 149-151deferPrepares attribute, network server

connections, 242defining functions

PHP, 404Python, 483-484

DELETE rules (referential constraints), 160-161

DELETE statement, 219-221deleting databases, 41, 529delimited identifiers, 138delimiters in character strings, 143delimiting PHP code, 394dependent tables, 158deployment model, 25

embedded framework, 25-31server framework, 32-36

derived columns, 189-191dictionaries (Python), 480-481directory for IBM Cloudscape on Linux

installation, 86directory structure of databases, 37-38dirty read. See uncommitted read

isolation leveldisaster recovery. See backupsdisconnect( ) method, 446

disconnecting from databasePerl application development, 446PHP application development, 413Python application development, 491

DISTINCT keyword, 196-198Distributed Relational Database Architecture.

See DRDA protocolDML (Data Manipulation Language),

135, 170DELETE statement, 219-221functions, 191

column functions, 193-194scalar functions, 191-193

INSERT statement, 213-215multiple rows, 215-216for specific columns, 215subselects, 216-217

SELECT statementCartesian product, 179-181CASE expressions, 204-205correlation names, 186-187derived columns, 189-191DISTINCT keyword, 196-198EXISTS predicate, 212-213GROUP BY clause, 194-196joins, 181-186nested table expressions, 205-206ORDER BY clause, 187-189permutation, 172projection, 171-172quantified predicates, 202-204restriction, 173-178retrieving entire tables, 170-171scalar fullselects, 206-209subqueries, 198-202UNION operator, 209-212

UPDATE statement, 217-219


Index 547

do( ) method, 447do/while loops (PHP), 399-400documentation

Perl, 440PHP, 392Python, 474

DOUBLE data type, 142DRDA (Distributed Relational Database

Architecture) protocol, 307, 533DROP CONSTRAINT clause, 156DROP INDEX statement, 169DROP statement, 140DROP TABLE statement, 156, 219DROP VIEW statement, 167duplicate rows, eliminating, 196-198dynamically determining result sets (JDBC

application development), 264-267DYNAMIC RESULT SETS clause, 231, 285dynamic SQL statements (JDBC application

development)allocating, 244-246executing, 246-248

E

Eclipse, 315, 325IBM DB2 plug-in for Eclipse, 23

editing environmentsfor Perl, 441for PHP, 393for Python, 475

embedded framework (deployment model),25-31

embedded .JAR files, 291-292embedded JDBC drivers, 532

JDBC application development, 236-237encrypted databases, booting, 527encryption, 123-126, 527

encryptionAlgorithm parameter, 43, 123-125algorithm values, 125-126feedback modes, 126

encryptionProvider parameter, 43, 123environment connection options, 45environment handles, 308environment variables

setting, 529on Linux, 525on Windows, 526

versus system variables, 59equality predicate, 173

with ALL predicate, 204ErrorCode values, 249-250error handling, stored procedures, 287error messages (YMLD example application),

363-364, 367-368errors. See also SQLExceptions

database-level authorization, 133getSQLError( ) method, 334

escape processing, 246exceptions. See SQLExceptionsexec( ) method, 414execute( ) method, 414, 448-449, 457, 492executeBatch( ) method, 245, 273executemany( ) method, 493ExecuteNonQuery( ) method (YMLD

example application), 385executeQuery( ) method, 247, 252executeUpdate( ) method, 247, 252executing dynamic SQL statements (JDBC

application development), 246-248execution plan and statistics, 113EXISTS predicate, 212-213exitYMLD( ) method, 355exporting data, 109-111expressions, parentheses in, 532extensions (PHP), 391-392. See also modulesEXTERNAL NAME clause, 223, 231, 292


548 Index

F

feedback modes for encryptionAlgorithmoption, 126

fetch( ) method, 416-417, 420, 450, 453fetchall( ) method, 495-498fetchmany( ) method, 495-498fetchone( ) method, 495-498file system, physical security, 121-123first( ) method, 253flat file systems, 13floating point data types, 46FLOAT data type, 142foreach loops (PHP), 402-403foreign keys, 158, 168FOR BIT DATA specification, 144FOR FETCH ONLY clause, 275for loops

PHP, 401-402Python, 482-483

FOR READ ONLY clause, 275FOR UPDATE clause, 274-278FROM clause, 170-171fullselects. See scalar fullselectsfunctions, 191

column functions, 193-194defining

PHP, 404Python, 483-484

MONTH, 337, 372scalar functions, 191-193, 223UDFs (user-defined functions), 223-224


G

generated values. See identity columnsGet( ) methods (ODBC), 366GET variables, handling

Perl application development, 459-461PHP application development, 426-430Python application development, 504-507

getAsciiStream( ) method, 263getAttribute( ) method, 423getAutoCommit( ) method, 272getBinaryStream( ) method, 262getBlob( ) method, 262-264getBytes( ) method, 262getCatalogName( ) method, 266getClob( ) method, 262-264getColumnClassName( ) method, 265getColumnCount( ) method, 265getColumnDisplaySize( ) method, 265getColumnLabel( ) method, 265getColumnName( ) method, 265getConnection( ) method, 238getErrorCode( ) method, 249-250getFetchDirection( ) method, 245getFetchSize( ) method, 245getMaxFieldSize( ) method, 245getMaxRows( ) method, 246getMessage( ) method, 248getMoreResults( ) method, 288getNextException( ) method, 250getNextWarning( ) method, 251getPrecision( ) method, 265getProdDates( ) method (YMLD example

application), 343-344, 376-377getResultSet( ) method, 287-288getScale( ) method, 265


Index 549

getSchemaName( ) method, 266getSQLError( ) method, 334getSQLState( ) method, 249getSubString( ) method, 263getTableName( ) method, 265getUnicodeStream( ) method, 263getX( ) methods, 259-260

converting data types, 260global arrays (PHP), 427graphical installation program, troubleshoot-

ing installation, 525graphical interfaces. See GUI interfacesGROUP BY clause, 187, 194-196GUI interfaces

Perl application development, 467-472Python application development, 512-518

H

Haderle, Don, 2handlers

Perl scripts, 459PHP scripts, 426Python scripts, 504

HAVING clause, 196, 200history

of IBM Cloudscape/Apache Derby, 1-3of PHP, 391of Python, 473

HTTP headers, settingPHP application development, 426Python application development, 503-504

Hypertext Transfer Protocol headers. SeeHTTP headers

I

IBM, commitment to open source, 9-10IBM Cloudscape

differences from Apache Derby, 3-7history of, 1-3installing on Linux, 75-76


installing on Windows, 49-50with installation program, 55-63manual installation, 63-66migrating from previous versions, 50post-installation file structure, 72-73preparations for, 50-55troubleshooting installation, 70-72verifying installation, 67-69

licensing, 6SQL support in, 19-21support contract, 6

IBM Cloudscape system home directory, 64, 91

IBM DB2 JDBC Universal driver, 237-238, 532

connections (JDBC application development), 240-244

options, 533IBM DB2 plug-in for Eclipse, 23IBM developerWorks Web site, 6identifiers, naming standards, 138IDENTITY_VAL_LOCAL function, 153


550 Index

identity columns, 531data type modifiers, 151-153

if/elif/else structure (Python), 482if/elseif/else structures (PHP), 400ij tool, 22-23

creating databases, 40-41preventing data truncation, 114

importingdata, 106-109modules (Python), 486-487

import statementsJDBC application development, 235-236Python, 489-490

include files (PHP), 406-407include statement (PHP), 407incubator projects. See Apache incubator

projectsindexes, 47, 167-169, 531

and null values, 531initializing

variables for mod_perl, 452YMLD example application, 326-327, 360

inline views. See nested table expressionsinner joins, 183INOUT parameters, calling stored

procedures, 231Perl application development, 451-452PHP application development, 419-420Python application development, 498

input-filtering functions (PHP), 431input streams, inserting/updating large objects,

279-281INSERT rule (referential constraints), 158-160INSERT statement, 213-215

default values, 150-151multiple rows, 215-216for specific columns, 215subselects, 216-217

installingApache Derby/IBM Cloudscape on Linux,

75-76with installation program, 81-90manual installation, 90-93migrating from previous versions, 76post-installation file structure, 98-99preparations for, 76-81troubleshooting installation, 96-98verifying installation, 93-96

Apache Derby/IBM Cloudscape on Windows, 49-50


DB2 Runtime Client, 308-311Perl, 441-442

on Linux, 442on Windows, 443

PHP, 407on Linux, 408-409on Windows, 410

Python, 487on Linux, 487on Windows, 488-489

troubleshooting installation, 525-526YMLD example application, 326, 359-360

INTEGER data type, 46, 141interfaces

GUI interfacesPerl application development, 467-472Python application development,

512-518


Index 551

Web interfacescgi module (Python application

develoment), 504CGI.pm module (Perl application

develoment), 459handling GET/POST variables,

426-430, 459-461, 504-507sessions, 435-436, 466, 511-512setting HTTP headers, 426, 503-504taint-checking user input, 430-432,

462, 507-508XHTML conflicts with Perl reserved

names, 465YMLD example, 432-435, 462-465,

508-511IN parameters, calling stored procedures,

176, 231PHP application development, 417-418Python application development, 496-497

IS NOT NULL predicate, 176-177IS NULL predicate, 176-177is_bool( ) method, 431is_float( ) method, 431is_int( ) method, 431is_numeric( ) method, 431is_string( ) method, 431isAfterLast( ) method, 254isAutoIncrement( ) method, 266isBeforeFirst( ) method, 254isCaseSensitive( ) method, 266isCurrency( ) method, 266isDefinitelyWritable( ) method, 266isFirst( ) method, 254isLast( ) method, 254isNullable( ) method, 266isolation levels

changing, 303-304choosing, 303

cursor stability, 302read stability, 302repeatable read, 303statement-level isolation levels, 304-305uncommitted read, 302

isReadOnly( ) method, 266isSearchable( ) method, 266isSigned( ) method, 266isWritable( ) method, 266iterators. See control structures

J

jar directory, 41.JAR files, embedded, 291-292Java. See also JDBC application development

benefits of, 233-234data types, versus SQL data types, 258, 366null values, 534

versus SQL null values, 260-262Java Common Client (JCC), 6Java Database Connectivity. See JDBC

application developmentJava Developer’s Kit. See JDKJava Runtime Environment. See JREJava Virtual Machine. See JVMJCC (Java Common Client), 6JCE providers, list of, 124-125JDBC application development, 233-234

allocating dynamic SQL statements, 244-246

applets, 299-301batch methods, 274batch processing, 273-274database connections, 238-239dynamically determining result sets,

264-267embedded JDBC drivers, 236-237


552 Index

executing dynamic SQL statements, 246-248

IBM DB2 JDBC Universal driver, 237-238import statements, 235-236inserting and updating large objects,

279-281locking issues, 302-305modifying data with result sets, 274-279network server connections, 240-244prepared statements, 268-272program structure, 234-235retrieving

column values, 258-264result sets, 252-258

SQLExceptions versus SQLWarnings, 251-252

stored procedures, 281-288transactions, 272trapping SQLExceptions, 248-250troubleshooting, 532-535UDFs (user-defined functions), 288-299YMLD example application

database connections, 327-329exit routine, 355functions of, 325initializing, 326-327installing, 326Java components, 324-325purchasing tickets, 336-351retrieving current performances,

329-334retrieving seat map, 335-336retrieving seat prices, 334-335viewing transaction log, 351-355

JDBC drivers, embedded, 532JDBC scripting tool (ij tool), 22-23

creating databases, 40-41preventing data truncation, 114

JDK (Java Developer’s Kit), 52, 78jEdit Java editor, 324join predicates, 183joins, 181-186JRE (Java Runtime Environment), 51, 77

checking version of, 52, 78installing for IBM Cloudscape/Apache

Derby, 51, 77setting PATH system variable for, 52-55,

78-81JVM (Java Virtual Machine), 51, 77

K-L

LANGUAGE clause, 224, 231, 292large objects (LOBs), 144-145, 530

getBlob( ) and getClob( ) methods, 262-264

inserting/updating, 534JDBC application development, 279-281Perl application development, 456-458PHP application development, 424-425Python application development, 501-503

last( ) method, 253LDAP directory service authentication,

128-129left outer joins, 184-186length( ) method, 263licensing

Apache Derby, 5IBM Cloudscape, 6

LIKE predicate, 174-175Linux

configuringPerl, 442-443PHP, 409-410Python, 488

environment variables, setting, 525


Index 553

installingDB2 Runtime Client, 309-310Perl, 442PHP, 408-409Python, 487

installing Apache Derby/IBM Cloudscape,75-76


runningPerl scripts, 445PHP scripts, 412Python scripts, 490

lists (Python), 479LOBs (large objects), 144-145, 530

getBlob( ) and getClob( ) methods, 262-264

inserting/updating, 534JDBC application development, 279-281Perl application development, 456-458PHP application development, 424-425Python application development, 501-503

local data stores, advantages of, 12-13LOCK TABLE statement, 304locking in JDBC application development,

302-305LOCKSIZE option, 156log directory, 41log files, location of, 44-45logDevice parameter, 43logical security, 121logWriter attribute, network server

connections, 242LONG VARCHAR data type, 143loops. See control structures

M

maintenance. See database administrationmanageability of relational databases, 15manual installation

of IBM Cloudscape on Linux, 90-93of IBM Cloudscape on Windows, 63-66

math functions, 192MAX function, 194migrating from previous versions of

Cloudscape, 50, 76MIN function, 194mod_perl, initializing variables for, 452modules. See also extensions

Perl, 439-440CGI.pm module, 459Tk module, 467-472usage, 444

Python, 473-474cgi module, 504importing, 486-487Tkinter module, 512-518usage, 489-490

MONTH function, 337, 372multiple predicates, 173multiple result sets, 288multiple rows, inserting, 215-216multiple SQLExceptions, 250

processing, 533

N

namingdatabases, 39-40, 312, 529derived columns, 190identifiers, 138variables

PHP, 394Python, 475-476


554 Index

nested table expressions, 205-206nested views, 166network server installation, verifying,

68-69, 93-96. See also Apache Derby Network Server

next( ) method, 253-254nextRowset( ) method, 420nextset( ) method, 499nodes, 311non-unique indexes, 168NOT clause, 177-178NOT EXISTS predicate, 213null values

data type modifiers, 149and indexes, 168, 531in Java, 534for restriction, 176-177searching for, 531setting columns to, 278-279SQL versus Java, 260-262troubleshooting, 530-531

numeric data types, 140-142PHP, 396Python, 477-478

Nuvola icon set, 324

O

objects. See database objectsOCC (occasionally connected client), 12ODBC (Open Database Connectivity), 308.

See also Windows application developmentdata types, versus SQL data types, 385Get( ) methods, 366

ODBC .NET Data Provider, 357offline backups, 104-105online backups

with built-in copy, 102-103with read-only access, 103-104

ON NULL INPUT clause, 224Open Database Connectivity. See ODBCopen source

Apache Derby as, 3business perspective, 10-11IBM’s commitment to, 9-10technical perspective, 11

ORDER BY clause, 187-189ordinary identifiers, 138outer joins, 183-184output streams, inserting/updating large

objects, 279-281OUT parameters, calling stored

procedures, 231Perl application development, 451-452PHP application development, 419-420Python application development, 498

P

parameter markers, 268, 384-385PARAMETER STYLE clause, 224, 231, 292parameters

binding to prepared statements (Perl application development), 449

issuing SQL statementsPHP application development, 414-416Python application development,

493-494Parameters( ) method (YMLD example

application), 384-385parentheses in expressions, 532parent keys, 158parent tables, 158pass statement (Python), 483password parameter, 43

network server connections, 241path names, spaces in, 60PATH system variable, setting, 52-55, 78-81


Index 555

PDO (PHP Data Objects), 392connection pooling, 413database connections, 412-413disconnecting from database, 413large object (LOB) data types, 424-425SQL statements, calling stored procedures,

417-421transaction management, 421-424

PDO_ODBC driver, 392PDOStatement objects, SQL statements

issuing, 413-414with different parameters, 414-416with placeholders, 414

retrieving result sets, 416-417PEAR (PHP Extension and Archive

Repository), 391PECL (PHP Extension Community

Library), 391performance, 113

collecting statistics, 113-115Perl, 441PHP, 393Python, 474-475timing information in statistics, 115-118

performance tuning, 526-527PERFORMANCES table (YMLD example

database), 318-320Perl, 439

and CLI, 308configuring


documentation, 440editing environments, 441installing, 441-442


modules, 439-440usage, 444

performance, 441

Perl application developmentconnection pooling, 446-447database connections, 445-446disconnecting from database, 446GUI interfaces, 467-472large object (LOB) data types, 456-458module usage, 444running scripts from command line, 445SQL statements

calling stored procedures, 451-454issuing, 447issuing with prepared statements,

447-449retrieving result sets, 450-451

transaction management, 454-455Web interfaces

CGI.pm module, 459conflicts with XHTML and Perl

reserved, 465handling GET/POST variables, 459-461sessions, 466taint-checking user input, 462YMLD example, 462-465

permissionsfor backups, 103database-level authorization, 133

permutation, 172pFinishPurchase( ) method (YMLD example

application), 349-351PHP

classes, creating, 404-406and CLI, 308configuring


control structures, 399break statement, 404continue statement, 404do/while loops, 399-400foreach loops, 402-403


556 Index

for loops, 401-402if/elseif/else structures, 400switch structures, 401while loops, 399-400

data typesarrays, 396-397Boolean, 395-396numeric, 396strings, 397-399

delimiting code, 394documentation, 392editing environments, 393extensions, 391-392functions, defining, 404history of, 391include files, 406-407installing, 407

on Linux, 408-409on Windows, 410

performance, 393variables

declaring, 395naming, 394

PHP application development, 411connection pooling, 413database connections, 412-413disconnecting from database, 413large object (LOB) data types, 424-425running scripts from command line,

411-412SQL statements

calling stored procedures, 417-421issuing, 413-414issuing with different parameters,

414-416issuing with placeholders, 414retrieving result sets, 416-417

transaction management, 421-424Web interfaces

handling GET/POST variables, 426-430sessions, 435-436setting HTTP headers, 426taint-checking user input, 430-432YMLD example, 432-435

PHP Data Objects. See PDOPHP Extension and Archive Repository

(PEAR), 391PHP Extension Community Library

(PECL), 391physical security, 121-123, 527placeholders, issuing SQL statements

PHP application development, 414Python application development, 492

pooling connectionsPerl application development, 446-447PHP application development, 413Python application development, 491-492

portNumber attribute, network server connections, 241

position( ) method, 263positioned deletes, 219positioned updates, 217post-installation file structure

IBM Cloudscape on Linux installation, 98-99

IBM Cloudscape on Windows installation,72-73

POST variables, handlingPerl application development, 459-461PHP application development, 426-430Python application development, 504-507

pProdSelection( ) method (YMLD exampleapplication), 336-339

precedence of authentication levels, 528


Index 557

precision (numbers), 141predicates, 173

BETWEEN predicate, 175EXISTS predicate, 212-213IN predicate, 176IS NOT NULL predicate, 176-177IS NULL predicate, 176-177join predicates, 183LIKE predicate, 174-175multiple predicates, 173NOT clause, 177-178quantified predicates, 202-204

prepare( ) method, 414, 448prepareCall( ) method, 284prepared statements

JDBC application development, 268-272Perl application development, 447-449

prerequisitesfor IBM Cloudscape for Linux installer,

82-83for IBM Cloudscape for Windows

installer, 57previous( ) method, 254PRICEPLAN table (YMLD example

database), 322-323primary indexes, 168primary keys, 158, 168. See also unique

constraintsADD UNIQUE statement, 155and indexes, 168

privileges for database objects, 163procedures, 48, 230-231

calling, 284Perl application development, 451-454PHP application development, 417-421Python application development,

495-499

connections from, 535creating, 281-282defining, 282-284error handling, 287for exporting data, 109-111for importing data, 106-109JDBC application development, 281-288result sets, 284-287

PRODUCTIONS table (YMLD example database), 317-318

projection, 171-172promotion of data types, 190properties

database-wide, 127system-wide, 127

properties variable, establishing database connections, 239

pShowProductions( ) method (YMLDexample application), 329-334

pShowTickets( ) method (YMLD exampleapplication), 346-349

pyDB2 modulelarge object (LOB) data types, 501-503stored procedures, 496

PyPi (Python Package Index), 473Python

classes, creating, 484-485and CLI, 308configuring


control structures, 481break statement, 483continue statement, 483for loops, 482-483if/elif/else structure, 482pass statement, 483while loops, 481-482


558 Index

data typesBoolean, 476-477dictionaries, 480-481numeric, 477-478sequences, 478-479strings, 479-480

documentation, 474editing environments, 475functions, defining, 483-484history of, 473installing, 487

on Linux, 487on Windows, 488-489

modules, 473-474importing, 486-487usage, 489-490

performance, 474-475variables

declaring, 476naming, 475-476

Python application developmentconnection pooling, 491-492database connections, 490disconnecting from database, 491GUI interfaces, 512-518large object (LOB) data types, 501-503module usage, 489-490running scripts from command line, 490SQL statements

calling stored procedures, 495-499issuing, 492issuing with different parameters,

493-494issuing with placeholders, 492retrieving result sets, 494-495

transaction management, 499-501

Web interfacescgi module, 504handling GET/POST variables, 504-507sessions, 511-512setting HTTP headers, 503-504taint-checking user input, 507-508YMLD example, 508-511

Python Package Index (PyPi), 473

Q

q{} syntax, 447quantified predicates, 202-204queries. See SELECT statementquery( ) method, 416question mark (?), parameter markers, 268

R

range operator for restriction, 175read stability isolation level, 302readOnly attribute, network server

connections, 242READS SQL DATA clause, 231REAL data type, 142recovery. See backupsreferential integrity constraints, 156-161, 168

and indexes, 168registerOutParameter( ) method, 284relational databases, advantages of, 13-15relative( ) method, 254remote authentication, 528renaming. See namingrepeatable read isolation level, 303require statement (PHP), 407reserved Perl names, conflicts with

XHTML, 465resizing VARCHAR columns, 156


Index 559

restoreFrom parameter, 44restoring database from backups, 105restriction, 173

BETWEEN predicate, 175with GROUP BY clause and column

functions, 195-196IN predicate, 176LIKE predicate, 174-175multiple predicates, 173NOT clause, 177-178null values, 176-177range operator, 175

resultSetCurrency parameter (createStatement( ) method), 244-245

ResultSetMetaData interface, 265resultSetType parameter (createStatement( )

method), 244-245result sets, 244

accessing in random order, 533dynamically determining (JDBC

application development), 264-267exporting data, 110-111modifying data with (JDBC application

development), 274-279multiple result sets, 288retrieving



494-495retrieving column values (JDBC

application development), 258-264stored procedures, 281, 284-287

retrieveMessagesFromServerOnGetMessageattribute, network server connections, 241-243

retrievingcolumn values (JDBC application

development), 258-264current performances (YMLD example

application), 329-334, 364-368result sets



494-495seat map (YMLD example application),

335-336, 369-370seat prices (YMLD example application),

334-335, 368-369RETURNS clause, 223, 292, 293right outer joins, 186rollBack( ) method, 422, 454, 500ROLLBACK statement, 231-232

JDBC application development, 272rollForwardRecoveryFrom parameter, 43row functions. See scalar functionsrow-level locks, 156rowCount( ) method, 415.rowcount property, 494rows, 46runtime statistics. See statistics

S

Saunders, Kathy, 4scalability of relational databases, 15scalar fullselects, 206-209

UPDATE statement, 218-219scalar functions, 191-193, 223schema names, when creating tables, 148


560 Index

schemas, 46, 221-223, 532CREATE SCHEMA statement, 148SET SCHEMA command, 363

searched deletes, 219searched updates, 217SEATMAP table (YMLD example

database), 323SEATS table (YMLD example database),

320-322security

authentication, 313connection options, 43encryption, 123-126JCE providers, list of, 124-125logical security, 121permissions for backups, 103physical security, 121-123troubleshooting, 527-528user authentication, 126-128

built-in authentication, 130-132LDAP directory service authentication,

128-129user-defined authentication, 129

user authorization, 132-133securityMechanism attribute, network server

connections, 242seg0 directory, 41SELECT statement. See also result sets

Cartesian product, 179-181CASE expressions, 204-205correlation names, 186-187derived columns, 189-191DISTINCT keyword, 196-198EXISTS predicate, 212-213GROUP BY clause, 194-196joins, 181-186nested table expressions, 205-206ORDER BY clause, 187-189permutation, 172

projection, 171-172quantified predicates, 202-204restriction, 173-178retrieving entire tables, 170-171scalar fullselects, 206-209subqueries, 198-202UNION operator, 209-212

Selinger, Patricia, 2sequences (Python), 478-479. See also arrays

(PHP)sequential value columns. See identity

columnsserver framework (deployment model), 32-36server name attribute, network server

connections, 240-241service.properties file, 41

special characters in, 529session_start( ) method, 436sessions

Perl application development, 466PHP application development, 435-436Python application development, 511-512

SET CURRENT ISOLATION statement, 303SET keyword, resizing VARCHAR

columns, 156set relationships, 14SET SCHEMA command, 363setAsciiStream( ) method, 279setAttribute( ) method, 423setAutoCommit( ) method, 272setBinaryStream( ) method, 280setCalendar( ) method (YMLD example

application), 340-343, 374-376setCursorName( ) method, 276setEscapeProcessing( ) method, 246setFetchDirection( ) method, 245setFetchSize( ) method, 245setMaxFieldSize( ) method, 246


Index 561

setMaxRows( ) method, 246setNull( ) method, 278setProduction method (YMLD example

application), 372setTransactionIsolation( ) method, 303setUnicodeStream( ) method, 279setX( ) methods, 269shutdown parameter, 44single-user implementation. See embedded

framework (deployment model)single quotation marks (‘’), character string

delimiters, 143slices of sequences (Python), 478SMALLINT data type, 141SOME quantified predicate, 202sorting. See ORDER BY clausespaces in path names, 60SQL (Structured Query Language), 14, 135.

See also dynamic SQL statements; SQL statements

Apache Derby support for, 19-21categories of, 135data types

versus Java data types, 258, 366versus ODBC data types, 385

DDL (Data Definition Language), 137-138ALTER statement, 139ALTER TABLE statement, 155-156constraints, 156-163CREATE statement, 139CREATE TABLE statement, 147-148data types, 140-147data type modifiers, 148-153DECLARE statement, 138-140,

153-154DROP statement, 140DROP TABLE statement, 156

indexes, 167-169system catalog tables, 163-164views, 165-167

DML (Data Manipulation Language), 170DELETE statement, 219-221functions, 191-194INSERT statement, 213-217SELECT statement, 170-191, 194-213.

See also result setsUPDATE statement, 217-219

MONTH function, 337, 372null values, versus Java null values,

260-262prepared statements (JDBC application

development), 268-272procedures, 230-231schemas, 221-223transactions, 231-232triggers, 224-225

activation, 225body of, 225-226example, 226-230

troubleshooting, 529-532try blocks, 533UDFs (user-defined functions), 223-224


SQL clause, 224, 231, 292SQL statements. See also SQL

calling stored proceduresPerl application development, 451-454PHP application development, 417-421Python application development,

495-499issuing

Perl application development, 447PHP application development, 413-414Python application development, 492


562 Index

issuing with different parametersPHP application development, 414-416Python application development,

493-494issuing with placeholders

PHP application development, 414Python application development, 492

issuing with prepared statements (Perlapplication development), 447-449

retrieving result setsPerl application development, 450-451PHP application development, 416-417Python application development,

494-495SQL92 identifiers, 127SQLExceptions

multiple SQLExceptions, processing, 533trapping (JDBC application development),

248-250versus SQLWarnings, 534


SQLSTATE values, 249SQLWarnings versus SQLExceptions, 534

JDBC application development, 251-252statement handles, 308statement-level isolation levels, 304-305statements, closing, 533. See also dynamic

SQL statements; SQL statementsstatistics

collecting, 113-115and execution plan, 113timing information in, 115-118

stored procedures, 48, 230-231calling, 284


495-499

connections from, 535creating, 281-282defining, 282-284error handling, 287for exporting data, 109-111for importing data, 106-109JDBC application development, 281-288result sets, 284-287

string data types, 140-144string functions, 192strings

PHP, 397-399Python, 479-480searching for, 174-175

Structured Query Language. See SQLsubqueries, 176, 198-202

EXISTS predicate, 212-213versus subselects, 202

subselectsDELETE statement, 220-221inserting, 216-217versus subqueries, 202

subset of columns, importing data, 108-109Subversion (SVN) repository, 8SUM function, 194support contract for IBM Cloudscape, 6SVN (Subversion) repository, 8switch structures (PHP), 401SYSALIASES system table, 41, 163SYSCHECKS system table, 41, 163SYSCOLUMNS system table, 41, 163SYSCONGLOMERATES system table,

42, 163SYSCONSTRAINTS system table, 42, 163SYSDEPENDS system table, 42, 164SYSFILES system table, 42, 164SYSFOREIGNKEYS system table, 42, 164SYSKEYS system table, 42, 164


Index 563

SYSSCHEMAS system table, 42, 164SYSSTATEMENTS system table, 42, 164SYSSTATISTICS system table, 42, 164SYSTABLES system table, 42, 164system-level authentication, precedence, 528system-level users

built-in authentication, 130-131versus database-level users, precedence

of, 132system-wide properties, 127system properties, setting, 237system tables, list of, 41-42, 163-164system variables

backward slash (\) in, 64, 91defined, 64versus environment variables, 59

SYSTRIGGERS system table, 42, 164SYSVIEWS system table, 42, 164

T

table check constraints. See check constraintstable scans, 113table-level locks, 156tables, 46

ALTER statement, 139ALTER TABLE statement, 155-156compressing, 119consistency checks, 112-113constraints, 156

check constraints, 161-163referential integrity constraints, 157-161unique constraints, 157

CREATE TABLE statement, 147-148DECLARE statement, 138-140,

153-154, 530DELETE statement, 219-221DROP TABLE statement, 156, 219exporting data, 109-110importing data, 107-109

indexes, 167-169INSERT statement, 213-215

default values, 150-151multiple rows, 215-216for specific columns, 215subselects, 216-217

SELECT statementCartesian product, 179-181CASE expressions, 204-205correlation names, 186-187derived columns, 189-191DISTINCT keyword, 196-198EXISTS predicate, 212-213GROUP BY clause, 194-196joins, 181-186nested table expressions, 205-206ORDER BY clause, 187-189permutation, 172projection, 171-172quantified predicates, 202-204restriction, 173-178retrieving entire tables, 170-171scalar fullselects, 206-209subqueries, 198-202UNION operator, 209-212

system catalog tables, 41-42, 163-164triggers, 224-225

activation, 225body of, 225-226example, 226-230

UPDATE statement, 217-219views, 165-167in YMLD example database, 136-137, 316

PERFORMANCES table, 318-320PRICEPLAN table, 322-323PRODUCTIONS table, 317-318SEATMAP table, 323SEATS table, 320-322TRANSACTIONS table, 323-324


564 Index

taint-checking user inputPerl application development, 462PHP application development, 430-432Python application development, 507-508

TCP/IP nodes, 311technical perspective on open source, 11temporary tables, DECLARE statement,

138-140, 153-154, 530territory, connection options, 45testing database connections, 312ThinG GUI design editor, 324Thinlet GUI toolkit, 324

interfaces, 330time and date data types, 46, 145-147TIME data type, 145-146TIMESTAMP data type, 145-147timing information, adding to statistics,

115-118Tk (Perl module), 440

Perl application development, 467-472Tkinter module (Python application

development), 512-518tmp directory, 41traceFile attribute, network server

connections, 242traceLevel attribute, network server

connections, 242transactions, 231-232

JDBC application development, 272Perl application development, 454-455PHP application development, 421-424Python application development, 499-501safety of, 30viewing transaction log (YMLD example

application)JDBC application, 351-355Windows application, 386-390

TRANSACTIONS table (YMLD exampledatabase), 323-324

trapping SQLExceptions (JDBC applicationdevelopment), 248-250

triggers, 47-48, 224-225, 532activation, 225body of, 225-226example, 226-230

troubleshootingdatabases, 528-529IBM Cloudscape on Linux installation,

96-98IBM Cloudscape on Windows installation,

70-72installation, 525-526JDBC application development, 532-535performance tuning, 526-527security issues, 527-528SQL, 529-532

truncated data, preventing in ij tool, 114try/catch blocks, 533

YMLD example application, 367-368tuples (Python), 478

U

UDFs (user-defined functions), 191, 223-224JDBC application development, 288-299troubleshooting, 535

uncataloged database connections, 313uncommitted read isolation level, 302uncorrelated subqueries, 201Unicode character encoding, 142-143, 262UNION ALL operator, 210UNION operator, 209-212unique constraints, 156-157, 168unique identifiers. See identity columnsunique indexes, 167-168


Index 565

unique keys, 157, 168and indexes, 168

unit of work. See transactionsUPDATE rules (referential constraints), 161UPDATE statement, 217-219updateNull( ) method, 278use statement (Perl), 444user attribute, network server connections, 241user authentication. See authenticationuser authorization. See authorizationuser input, taint-checking

Perl application development, 462PHP application development, 430-432Python application development, 507-508

user names. See authorization identifiersuser parameter, 43user-defined authentication, 129user-defined functions. See UDFs

V

validation. See taint-checking user inputVALUES clause, 214VARCHAR data type, 140, 143

resizing VARCHAR columns, 156variables

initializing for mod_perl, 452PHP

declaring, 395naming, 394

Pythondeclaring, 476naming, 475-476

vector functions. See column functionsverifying

IBM Cloudscape on Linux installation, 93-96

IBM Cloudscape on Windows installation,67-69

version of JRE, checking, 52, 78views, 47, 165-167

versus nested table expressions, 206virtual tables. See views

W

warnings. See SQLWarningswasnull( ) method, 260Web interfaces

cgi module (Python application develoment), 504

CGI.pm module (Perl application develoment), 459

handling GET/POST variablesPerl application development, 459-461PHP application development, 426-430Python application development,

504-507sessions

Perl application development, 466PHP application development, 435-436Python application development,

511-512setting HTTP headers

PHP application development, 426Python application development,

503-504taint-checking user input

Perl application development, 462PHP application development, 430-432Python application development,

507-508XHTML conflicts with Perl reserved

names, 465YMLD example


508-511


566 Index

WHERE clause, 173while loops

PHP, 399-400Python, 481-482

Windowsconfiguring

Perl, 443-444PHP, 410-411Python, 489

environment variables, setting, 526installing

DB2 Runtime Client, 310-311Perl, 443PHP, 410Python, 488-489

installing Apache Derby/IBM Cloudscape,49-50


runningPerl scripts, 445PHP scripts, 411Python scripts, 490

Windows application development, YMLDexample application

components, 357database connections, 360-364exit routine, 390functions of, 358initializing, 360installing, 359-360purchasing tickets, 370-386

retrievingcurrent performances, 364-368seat map, 369-370seat prices, 368-369

viewing transaction log, 386-390

X-Z

XHTML, conflicts with Perl reserved names, 465

XML files, 13

YMLD example databaseas JDBC application

database connections, 327-329exit routine, 355functions of, 325initializing, 326-327installing, 326Java components, 324-325purchasing tickets, 336-351retrieving current performances,


tables in, 136-137, 316PERFORMANCES table, 318-320PRICEPLAN table, 322-323PRODUCTIONS table, 317-318SEATMAP table, 323SEATS table, 320-322TRANSACTIONS table, 323-324

Web interfacesPerl application development, 462-465PHP application development, 432-435Python application development,

508-511


Index 567

as Windows applicationcomponents, 357database connections, 360-364exit routine, 390functions of, 358initializing, 360installing, 359-360purchasing tickets, 370-386retrieving current performances,


Your Momma Loves Drama. See YMLDexample database


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