By Curtis Garvin, Anne Prince

Designed particularly for COBOL programmers, DB2 for the COBOL Programmer, half 2 takes up the place Part 1 leaves off. half 1 covers the necessities had to write any COBOL application that handles DB2 info. half 2 builds on that base to offer you complicated DB2 talents, so that you can turn into a best senior programmer or programmer/analyst on your store.

That potential you are going to examine:

How to exploit kept tactics that movement SQL code off of the buyer and onto the database server to minimize community overhead

How to take advantage of dynamic SQL so your courses can generate and execute SQL statements as they run

How information sharing works at the parallel sysplex and different System/390 configurations

How to paintings with dispensed DB2 information

How to procedure DB2 information in CICS courses

Advanced locking ideas that express how locking and knowledge sharing have an effect on one another and what effect that has on application potency

The techniques and practices of DB2 database management that permit the programmer layout databases, deal with database pursuits, and manage a top quality insurance setting

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Extra info for DB2 for the COBOL Programmer, Part 2

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In addition to standard SQL Editor functions, the following functions are available from the Script Debugger: • • • • • • Set Breakpoints Run to Cursor Step Over Trace Into Halt Execution Start Execution from Cursor (useful when a script has partially executed and encounters an error; you can fix the error and start execution from that point) The Script Debugger output panel displays all of your SQL environment variables and their values, lists breakpoints in your scripts, and displays a call stack during your debugging session.

TIP When you click on the “Change Active Session for this Window” button, you can navigate between your current session and your new session. Toad displays your login name and your instance name at the top and bottom of each window. Look for this button on most of Toad’s other window toolbars as well. info | 29 Make a Non-SQL Code Statement/ Strip All Non-SQL Syntax The “Make a Non-SQL Code Statement” and “Strip All NonSQL Syntax” buttons let you add development code syntax to SQL statements or remove it from the statements in the SQL Editor.

These tabs will display the results returned in each statement in a data grid. Thus, if your script contains five SELECT statements, your Script Output tab will have one Output subtab and five Grid subtabs. Execute SQL*Plus Although the SQL Editor can execute many of Oracle’s SQL*Plus commands, some of these commands are either ignored or not supported. If your SQL contains SQL*Plus commands that are not supported in the SQL Editor (see the upcoming tip), select SQL Editor ➝ Execute SQL via SQL*Plus.

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