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Table of Contents

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  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

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Staging Data to a Flat File

Staging Data to a Flat File

When you stage data to a flat file on Windows or UNIX, the Integration Service writes data to a flat file, which is named after the configured target file name. The external loader starts loading data to the target database after the Integration Service writes all the data to the target flat file. The external loader does not delete the target flat file after loading it to the database. Make sure the target file directory can accommodate the size of the target flat file.
The Integration Service rounds numerical values based on the scale of the port when staging data to a flat file. It does not round results when you use an external loader that loads the data to a named pipe or if you configure the target for a normal load.
If a session aborts or fails before the Integration Service writes all the data to the flat file target, the external loader does not start. If a session aborts or fails after the Integration Service writes all the data to the flat file target, the external loader completes loading data to the target database before the external loader exits.