Articles & Content


Online Schema Changes, Can You Afford Them? (B09)

Topic: 2005 EU

Subtopic: DB2 for z/OS

DATE: 2005-10-25 (13:30 - 14:30)
SPEAKERS: Ralph Crosby (BMC Software)

Online schema changes is on of the most anticipated and exciting features in DB2. This presentation will study the performance impact to applications that access objects modified via online schema change. Elapsed and CPU metrics will be collected on applications over time as a variety of online changes are made to the application's objects. Tips will be provided on how to minimize the performance impact of online changes.

EXP. LEVEL: Intermediate


Online Schema feature overview

Overview of the studied application

Overview of the method and metrics collected

Cost of online schema changes to the applications

Tips on how to efficiently implement online schema

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