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Example: SHOWCB macro (display a physical error message) z/OS DFSMS Macro Instructions for Data Sets SC23-6852-02 |
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In this example, a SHOWCB macro is used to display a physical error
message. This example assumes that there is no SYNAD routine (or the
SYNAD exit is inactive). In this case, VSAM returns control to your
program following the last executable instruction if a physical error
occurs. Register 15 indicates a physical error (12), and the feedback
field in the request parameter list contains a code identifying the
error. The message area contains more details about the error. Register
1 points to the request parameter list.
The RPL macro in this example provides for a message area, MESSGES, of 128 bytes to be used for any physical error message. The SHOWCB macro's parameters are:
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Copyright IBM Corporation 1990, 2014
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