Course description: DB2 UDB Programming using Java

Develop the skills you need to produce application programs in Java that manipulate DB2 databases. Learn how to use JDBC to access data via SQL, perform updates, inserts, and deletes, and process data returned via selects with result-set processing. Also, learn to use SQL for Java (SQLJ) to embed SQL statements into Java programs and prepare SQLJ programs for execution. Learn how to take advantage of advanced programming techniques to access DB2. Use DB2 UDB for Windows in hands-on labs, but the concepts presented apply to programming in Java for any DB2 database.

Learn how to write stored procedures using the Development Center. Code a Java program to call the stored procedure. Examine error handling, including how to capture SQL exceptions, SQL warnings and SQL codes. Learn how to code user-defined functions. Explore performance and tuning of SQL statements and how to use the Visual Explain tool.

Course Materials

The course materials cover DB2 UDB for Linux, UNIX, and Windows Version 8.

Hands-On Labs

Seven labs are included to address DB2 UDB for Linux, UNIX, and Windows Version 8.

Certification

Prepare for IBM Certification Test 703: DB2 UDB V8.1 Family Application Development.

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Training Paths that reference this course are:

• Application Programming

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IBM Education Advantage Program eligibility:

• Yes - IBM Education Pack - online account

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This is an intermediate course for application programmers and technical individuals who design and implement Java applications that access DB2 data from a workstation environment.

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You should complete:

• DB2 Family Fundamentals (CE030)
• DB2 SQL Workshop (CE120)
• Introduction to Developing OO Applications with Java for Procedural Developers (JA321)
• Developing and Testing OO Applications with Java (JA341)
• or have equivalent knowledge

Also, you should be able to discuss relational database concepts and use basic Java language syntax components. The lab provides Java skeleton programs for you to complete.

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• Connect to local and remote DB2 databases
• Use JDBC statements in an application program
• Incorporate static SQL statements into an application program
• Prepare a program for execution
• Discuss relational concepts
• Describe database locking from an application programming perspective
• Discuss program and DB2 options relative to performance of programs accessing DB2
• Use object-relational capabilities of DB2 UDB such as Large Object (LOB) manipulation, user-defined functions, and user-defined distinct types
• Code stored procedures and call such procedures
• Identify tools that exist for monitoring the performance of the DB2 database and applications

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DB2 concepts

• identify DB2 family products
• explain DB2 workstation component functions
• identify DB2 objects
• discuss the concepts of relational tables and DB2's implementation of referential integrity
• define a unit of recovery and detail the basic locking strategies used by DB2
• identify the key differences between static SQL and other application alternatives for accessing DB2 data
• identify DB2's role in X/OPEN

JDBC programming I

• code connection-related statements within a JDBC application
• code the necessary import statements for JDBC interfaces
• embed INSERT, UPDATE, DELETE and simple SELECT statements in JDBC applications
• write code to check for Warning and Exception conditions and understand the SQL Communication Area (SQLCA)
• utilize parameter markers in JDBC application programs
• process data that allows NULL values
• understand database access security when using JDBC

JDBC programming II

• process multiple rows returned from a query using result sets
• read rows in a result set using both forward scrolling and backward scrolling methods
• identify the valid result set types
• update rows using result sets
• use metadata interface methods
• implement batch processing methods
• set isolation level

SQLJ programming

• embed INSERT, UPDATE, DELETE and single-row SELECT statements in application programs
• effectively communicate with DB2 when processing NULL values and determining the success of statement execution
• demonstrate use of DB2 coding aids
• code CONNECT statements within an application program
• 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
• use result set iterators to handle select criteria that may return multiple rows in a Java program
• issue positioned UPDATE and DELETE statements

Stored procedures

• describe when the use of stored procedures is appropriate
• describe DB2's implementation of stored procedures
• list the characteristics and specification requirements of the client application and the server procedure
• describe the way to pass parameters to and from stored procedures
• identify the capabilities of the stored procedure builder
• describe the DB2 SQL Procedure Language (SQL PL)
• write stored procedures

Using object-relational capabilities

• describe and use programming options for handling large objects
• describe why a user-defined type (UDT) may be used
• identify how to define a user-defined type
• describe why a user-defined function (UDF) may be used
• identify how to register a user-defined function
• identify how a user-defined function is invoked
• determine which user-defined function will be invoked based on name, function path, and parameter types
• write an application that processes a Character Large Object (CLOB) column, and write applications to create UDTs and UDFs

Performance considerations

• use programming techniques that enhance DB2 application performance by following general guidelines, using indexable predicates, and avoiding unnecessary sorts
• identify some of the access paths available to DB2
• list common causes of deadlocks and identify how to avoid such causes when possible
• identify and use techniques to reduce network traffic
• use the EXPLAIN tools as aids to develop applications that emphasize performance

Agenda

• Welcome
• DB2 Concepts
• Lab - Command Line Processor
• JDBC Programming I
• Lab - JDBC Programming I Lab
• JDBC Programming II
• Lab - JDBC Programming II
• SQLJ Programming
• Lab - SQLJ Programming
• Stored Procedures
• Lab - Stored Procedures
• Lab - User-Defined Functions
• Performance Considerations
• Lab - Visual Explain

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