What is the purpose of the dd keylen parameter?


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what happens when COND is coded in JOB statement and when COND is coded inside EXEC statement?

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hi friends........if u know syntax of IEBEDIT IN JCL

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//{name} INCLUDE MEMBER=memname {comments} in the include statement, what actually happens when its executed? The membername conatains a list of valid JCL statements, so will the include statement be substituted by these statements and how can we mention the pds that conatains the member? How does the include group differ from a PROC? how is include statement connected to JOBLIB and STEPLIB?

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How to send different PARM values based on the any condition to the program in a JCL? For example :- If the time is before 12:00 pm, I want to send "A" to some program and if it past 12:00 pm , I want to send "B" as a PARM value to that program. How to do it thur JCL only?

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