This course enables you to acquire the skills necessary to produce application programs that manipulate DB2 databases. Emphasis is on embedding Structured Query Language (SQL) statements and preparing programs for execution.

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* Actual course outline may vary depending on offering center. Contact your sales representative for more information.

Learning Objectives

Incorporate static SQL statements in an application program
Prepare the program for execution
Validate execution results are correct
Produce code to support multiple rows being returned from the database manager using cursors
Identify considerations regarding units of work, concurrency, and restart of programs
Identify differences between static and dynamic SQL
Provide test data for applications
Discuss program and DB2 options relative to performance of static SQL

1

  • CV720G;CF82G;DB2 Concepts

  • Identify DB2 family products
    Explain DB2 workstation component functions
    Identify DB2 objects
    Identify the key differences between static SQL and other application alternatives for accessing DB2 data
2

  • Program Structure I

  • Embed INSERT, UPDATE, DELETE and single-row SELECT statements in application programs
    Effectively communicate with DB2 when processing NULL values and determining success of statement execution
    Demonstrate use of DB2 coding aids
    Code CONNECT statements within an application program
    Identify connection types and impacts on a unit of work
    Program for the Call Attach Facility (CAF)
3

  • Program Preparation

  • Identify the additional steps necessary to prepare a program that contains embedded SQL for execution
    Describe the functions of the DB2 PRECOMPILE and BIND processes
    Describe factors relevant to the BIND process, including RUNSTATS positioning, package status, parameters, and authorization requirements
4

  • Program Structure II

  • Use DECLARE, OPEN, FETCH, and CLOSE CURSOR statements to handle select criteria that may return multiple rows in application programs
    Issue positioned UPDATE and DELETE statements
    Identify how scrollable cursors can be used
5

  • Recovery and Locking Concepts

  • Define a unit of recovery
    Identify the basic locking strategies used by DB2
6

  • Dynamic SQL Introduction

  • Describe the difference between static and dynamic SQL
    List the types of dynamic statements
    Code dynamic SQL in a program
7

  • Managing Test Data

  • Identify methods to insert data into a table
    Use the LOAD or IMPORT utility
    Identify the purpose of the RUNSTATS utility
    Identify the purpose of the REORG utility
8

  • Performance Considerations

  • Use programming techniques that enhance DB2 application performance by following general guidelines, using indexable predicates, and avoiding unnecessary sorts
    Identify the access paths available to DB2
    List common causes of deadlocks and avoid such causes when possible
    Use the EXPLAIN tools as aids to develop applications that emphasize performance

Audience

This intermediate course is for application programmers who need to write embedded SQL COBOL or PL/I programs in either a DB2 9 or DB2 10 for z/OS environment.

Language

English

Prerequisites

You should already have experience with one of the supported programming languages, COBOL or PL/I for z/OS. You are also expected to already be able to construct and use SQL statements.

$2,325

Length: 3.0 days (24 hours)

Level:

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02
Oct
Monday
9:30 AM ET -
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02
Oct
Monday
9:30 AM ET -
5:30 PM ET
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