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IBM P2090-714 Exam Syllabus Topics:
| Section | Objectives |
|---|
| Topic 1: Locking and Concurrency Control | - Deadlock and contention handling
- 1. Lock escalation
- 2. Deadlock detection and resolution
- Lock types and isolation levels
- 1. Row and page locking
- 2. Isolation levels (CS, RR, UR)
|
| Topic 2: System and Subsystem Performance | - DB2 subsystem tuning
- 1. Buffer pool tuning strategies
- 2. IRLM tuning considerations
- I/O and logging performance
- 1. Disk I/O considerations
- 2. Log write optimization
|
| Topic 3: Query Performance and Optimization | - SQL tuning techniques
- 1. Query rewrite and optimization hints
- 2. EXPLAIN analysis
- Access path selection
- 1. Index usage and matching predicates
- 2. Join strategies
|
| Topic 4: Indexing and Statistics | - Index design
- 1. Clustering indexes
- 2. Composite indexes
- Statistics management
- 1. RUNSTATS utility
- 2. Cardinality and distribution statistics
|
| Topic 5: DB2 for z/OS Performance Fundamentals | - Workload characteristics
- 1. Transaction vs batch workload tuning
- 2. Concurrency considerations
- Architecture impact on performance
- 1. EDM pool and memory structures
- 2. Buffer pool management
|
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