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Condition Code Checking
The objective is to define when a program should run based on what the
results were from earlier JCL steps. Of course, some people are still
attached to the JCL COND parameter which actually specifies when you
don't want the program to run. However, in most cases,
IF THEN,ELSE,ENDIF JCL statements are easier to code correctly and let
you do things which would be difficult to achieve with the old COND
parameter.
Here is a sample JCL fragment:
<![CDATA[
//COPY EXEC PGM=MYPGM
....
// IF (COPY.RC = 0) THEN
//NEXT EXEC PGM=NEXTPGM
....
// IF (ABEND | NEXT.RC > 8) THEN
//FINAL EXEC PGM=CLEANUP
....
// ELSE
//CLEAN EXEC PGM=LASTPGM
....
// ENDIF
// ENDIF
//
]]>
If the first program runs with return code zero, then program NEXTPGM is run.
If that program issues a return code greater than 8 or an earlier step has
abended, then program CLEANUP is run. Otherwise, LASTPGM is run.
You can also test what the abend code value was or whether a specific
job step executed.
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