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English
  • PowerExchange for CDC and Mainframe 10.5.4
  • All Products

Table of Contents

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  1. Preface
  2. Part 1: PowerExchange Change Data Capture Introduction
  3. Part 2: CDC Components Configuration and Management
  4. Part 3: CDC Sources Configuration and Management
  5. Part 4: Change Data Extraction
  6. Part 5: Monitoring and Tuning
  7. Appendix A: CDC for z/OS Troubleshooting
  8. Appendix B: DTL__CAPXTIMESTAMP Time Stamps

CDC Guide for z/OS

CDC Guide for z/OS

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Using the EDMC Transaction and Keywords to Manage the CICS/VSAM ECCR

Using the EDMC Transaction and Keywords to Manage the CICS/VSAM ECCR

Use the CICS transaction for the CICS/VSAM ECCR with the appropriate keyword to manage the ECCR. By default, the transaction name is "EDMC."

EDMC Syntax

To enter the EDMC transaction from a CICS terminal or operator console, use the following syntax: 
EDMC 
keyword

EDMC Keyword Descriptions

The following table describes the EDMC keywords that you can specify and their functions:
Keyword
Description
DISPLAY or DISP
Displays the names of the VSAM data sets that are registered for change data capture and that have been opened since the CICS/VSAM ECCR initialized. You can issue the EDMC transaction with this keyword only from a CICS terminal. This information is then displayed at the terminal.
EXITPGMS or XPGM
Lists all of the exit programs that are defined at the CICS task-related exit point and global user exit points that PowerExchange uses for CICS/VSAM CDC.
HELP
Displays a help panel that describes the valid EDMC keywords for the CICS/VSAM ECCR. You can issue the EDMC transaction with the HELP keyword only from a CICS terminal. This information is then displayed at the terminal.
INITIALIZE or INIT
Initializes CICS/VSAM ECCR in the CICS region. Also dynamically adds the PowerExchange exit programs that run at the CICS task-related user exit point and global user exit points that PowerExchange uses for CICS/VSAM CDC.
Usually, the ECCR is started by adding the EDMKOPER module name to the PLT initialization list. The ECCR then starts automatically in the third stage of CICS initialization.
If you have exit programs that run at the same CICS global exit points as the CICS/VSAM ECCR exit programs, do not use the INIT keyword. Otherwise, the CICS/VSAM ECCR exit programs might get control in the improper order, causing change capture problems.
OPTIONS or OPTS
Displays the CICS/VSAM CDC override options that are currently specified in the EDMKOVRD DD statement in the CICS region startup JCL or in the data set to which this DD statement points.
REFRESH or REFR
Refreshes the display of the CICS/VSAM CDC override options that are currently specified in the EDMKOVRD DD statement in the CICS region startup JCL or in the data set to which this DD statement points. Also validates these options and identifies any syntax errors. Use this keyword after you change the override options to identify any syntax errors.
RESTART or REST
Re-initializes the CICS/VSAM ECCR in the CICS region by issuing the EDMC TERM command followed by the EDMC INIT command. Use this keyword after changing any of the CDC override options in the EDMKOVRID DD statement or data set for your changes to take effect.
TERMINATE or TERM
Immediately stops the CICS/VSAM ECCR that is running in the CICS region, thereby stopping change data capture for all of the open VSAM source data sets. Also dynamically removes the PowerExchange exit programs that run at the CICS task-related user exit point and global use exit points that PowerExchange uses for CICS/VSAM CDC.
If you need to stop capturing changes only for a single VSAM file, deactivate or delete the corresponding capture registration. Then close and reopen the VSAM file in CICS.
For more information, see the
PowerExchange Command Reference
.
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