DB2 data manipulation

developerWorks®ibm.com/developerWorks• Manipulating cursors• Ability to manipulate large objects (LOBs) (such as Character LargeObjects [CLOBs] and Binary Large Object [BLOBs])• Managing a unit of work (for instance, a transaction)This is the second in a series of seven tutorials that you can use to help prepare forthe DB2 9.1 Family Application Development Certification exam (Exam 733). Thematerial in this tutorial primarily covers the objectives in Section 2 of the exam,entitled "Data manipulation."You do not need a copy of DB2 to complete this tutorial. However, you candownload a free copy of DB2 Express-C from the DB2 Express-C downloads page.Who should take this tutorial?To take the DB2 9.1 Family Application Development exam, you must have alreadypassed the DB2 9.1 Family Fundamentals exam (Exam 700). You can use the DB2Family Fundamentals tutorial series (refer to the Resources section) to prepare forthat test. It is a very popular tutorial series that has helped many people understandthe fundamentals of the DB2 family of products.This tutorial is one of the tools that can help you prepare for Exam 733. You shouldalso review the Resources section at the end of this tutorial for more information.Application development involves data retrieval and manipulation. In DB2, theseprocesses include several methods. While these methods can be programmed indifferent languages, the concepts remain same no matter what the implementationlanguage. This tutorial is the first step you should take before embarking onprogramming applications for DB2.Section 2. Change and access dataChange dataChanging data is a key process to understand when designing a databaseapplication. It depends on several factors:• The data model and metadata (What are the catalog data, types, limits,and checks that you must deal with?)• Business requirements (How do you need to identify and modify the datain the database?)DB2 data manipulationPage 2 of 25© Copyright IBM Corporation 1994, 2007. All rights reserved.