English
  • PowerCenter 10.2 HotFix 2
  • All Products

Table of Contents

Search

  1. Preface
  2. Understanding Pipeline Partitioning
  3. Partition Points
  4. Partition Types
  5. Pushdown Optimization
  6. Pushdown Optimization and Transformations
  7. Real-time Processing
  8. Commit Points
  9. Row Error Logging
  10. Workflow Recovery
  11. Stopping and Aborting
  12. Concurrent Workflows
  13. Grid Processing
  14. Load Balancer
  15. Workflow Variables
  16. Parameters and Variables in Sessions
  17. Parameter Files
  18. FastExport
  19. External Loading
  20. FTP
  21. Session Caches
  22. Incremental Aggregation
  23. Session Log Interface
  24. Understanding Buffer Memory
  25. High Precision Data

Advanced Workflow Guide

Advanced Workflow Guide

Back Next

Partitioning Database Sources

Partitioning Database Sources

When you use source database partitioning, the Integration Service queries the database system catalog for partition information. It distributes the data from the database partitions among the session partitions.
If the session has more partitions than the database, the Integration Service generates SQL for each database partition and redistributes the data to the session partitions at the next partition point.