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what is Control card in JCL

 
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keerthi

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Joined: 23 Mar 2005
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PostPosted: Thu Mar 31, 2005 4:26 pm    Post subject: what is Control card in JCL
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what is Control card in JCL? when we will use this?
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knd_r
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Joined: 18 Mar 2005
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PostPosted: Thu Mar 31, 2005 6:58 pm    Post subject:
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hi,

control cards are nothing but dd statements in jcl that we use for input or output.

regards,
sudarsan reddy
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Arun Joseph

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Joined: 30 Mar 2005
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PostPosted: Fri Apr 01, 2005 1:37 pm    Post subject: Re: what is Control card in JCL
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There can be control cards for sort, in which the card may have the details of the field on which it is to be sorted. There are control cards for delete defining VSAM files. These are only a few examples.
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satyanarayana.chitneni

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Joined: 28 Mar 2005
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PostPosted: Fri Apr 01, 2005 2:47 pm    Post subject:
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Hi arun ,

can u give sample code for control cards.

thanks,
Satya
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Frank Yaeger

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Joined: 15 Feb 2005
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PostPosted: Fri Apr 01, 2005 9:53 pm    Post subject:
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A control card (statement) provides information specific to a particular program in a format that the program writer defines.

For example, DFSORT has control statements such as SORT, MERGE, INCLUDE, OMIT, INREC, OUTREC, SUM, OUTFIL, OPTION, etc. These are all defined in "z/OS DFSORT Application Programming Guide".

Other programs and utilities (e.g. IEBCOPY, IEBGENER) have control cards defined for the information those programs need. The specific documentation for those programs give you the definitions for those control cards.
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die7nadal

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Joined: 23 Mar 2005
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PostPosted: Sat Apr 02, 2005 12:08 am    Post subject: Re: what is Control card in JCL
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Just to add to the above digression, Contol Cards are PARAMETERS that are passed as Input to the Program. Typically in many IBM utilities like IDCAMS, IEBGENER the SYSIN or SYSTSIN DD will have the Contol cards
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