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 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
  26. POWERCENTERHELP

Advanced Workflow Guide

Advanced Workflow Guide

Changing Connection Parameters

Changing Connection Parameters

Use connection parameters to rerun sessions with different sources, targets, lookup tables, or stored procedures. You create a connection parameter in the session properties of any session. You can reference any connection in a parameter. Name all connection session parameters with the appropriate prefix, followed by any alphanumeric and underscore character.
For example, you run a session that reads from two relational sources. You access one source with a database connection named “Marketing” and the other with a connection named “Sales.” In the session properties, you create a source database connection parameter named $DBConnection_Source. In the parameter file, you define $DBConnection_Source as Marketing and run the session. Set $DBConnection_Source to Sales in the parameter file for the next session run.
If you use a connection parameter to override a connection for a source or target, you can override the connection attributes in the parameter file. You can override connection attributes when you use a non-relational connection parameter for a source or target instance. When you define the connection in the parameter file, the Integration Service searches for specific, user-defined session parameters that define the connection attributes. For example, you create an FTP connection parameter called $FTPConnectionMyFTPConn and define it in the parameter file. The Integration Service searches the parameter file for the following parameters:
  • $Param_FTPConnectionMyFTPConn_Remote_Filename
  • $Param_FTPConnectionMyFTPConn_Is_Staged
  • $Param_FTPConnectionMyFTPConn_Is_Transfer_Mode_ASCII
If you do not define a value for any of these parameters, the Integration Service uses the value defined in the connection object.
The connection attributes you can override are listed in the following template file:
<PowerCenter Installation Directory>/server/bin/ConnectionParam.prm


Updated July 04, 2018