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  • PowerExchange for CDC and Mainframe 10.4.1
  • All Products

Table of Contents

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  1. Preface
  2. Summary of PowerExchange New Features and Changes
  3. PowerExchange Installation and Upgrade
  4. PowerExchange Agent
  5. PowerExchange Client for PowerCenter
  6. PowerExchange Condense
  7. PowerExchange Listener
  8. PowerExchange Logger for Linux, UNIX, and Windows
  9. PowerExchange Navigator
  10. PowerExchange Monitoring and Tuning
  11. PowerExchange Utilities
  12. PowerExchange for Adabas
  13. PowerExchange for CA Datacom
  14. PowerExchange for DB2 for i
  15. PowerExchange for DB2 for Linux, UNIX, and Windows
  16. PowerExchange for DB2 for z/OS
  17. PowerExchange for CA IDMS
  18. PowerExchange for IMS
  19. PowerExchange for Microsoft SQL Server
  20. PowerExchange for MySQL
  21. PowerExchange for Oracle
  22. PowerExchange for PostgreSQL
  23. PowerExchange for VSAM and Flat Files
  24. PowerExchange ODBC

Release Guide

Release Guide

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Enhancements to the Data Map Creation Utility

Enhancements to the Data Map Creation Utility

PowerExchange 10.0 provides the following enhancements to the data map creation utility:
  • For sequential and VSAM data sources on z/OS, you can configure the control file to find record ID (RID) fields. This feature is useful if the COBOL copybook includes REDEFINE statements or multiple 01-level records and includes one or more RID fields that identify the record layout of each data record. The utility reads the COBOL copybook and the data files that you specify in the control file to find likely RID fields and the data values that they contain. For each valid record layout, the utility creates a table and a record in the data map and assigns a data value to the RID field.
  • You can configure the control file so that the utility skips the number of initial records that you specify when it reads the data file.
To configure these features, you can include the following new elements in the control file:
cacheConfig
Controls the data cache on disk. The utility downloads data records from the z/OS system and saves them to a temporary disk cache to process them. You can define the cacheConfig element at a global level but not at a data map instance level.
The CacheConfig element includes the following elements:
cachePath
Specifies the full path to the folder for temporary working files. The cache path is written to the message log.
flushDataMode
Specifies when to flush the cache of the data records that were downloaded from the z/OS system.
Valid values:
  • e - Flush the cache when the createdatamaps utility finishes.
  • d - Flush the cache after each data map is created.
The default value of "e" allows data to be shared by multiple data map generations during one createdatamaps session.
findRecordIds
Controls whether the utility finds RID fields. You can specify findRecordIds at the global or data map instance level.
ridConfig
Defines parameters for finding RID fields. It includes following elements:
readRecordLimit
Maximum number of data records to read from each data file.
recordTypeLimit
Maximum number of record types in the data file.
fieldWidth
Maximum width, in bytes, of an RID field.
skipRecordCount
Specifies the number of initial records that the utility skips when it reads the data file.
For more information, see the "createdatamaps - Data Map Creation Utility" chapter in the
PowerExchange Utilities Guide
.
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