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value of Parm length field if nothing is passed thr JCL PARM

 
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jyothimenon1

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Joined: 16 Jul 2008
Posts: 9
Location: bangalore

PostPosted: Thu Jul 24, 2008 12:21 pm    Post subject: value of Parm length field if nothing is passed thr JCL PARM
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Hai,

Linkage Section.
01 Parmfield.
02 parm-data pic x(20)
02 parm-length pic s9(4) comp.


Here what will be the value of parm-length before the execution.?

and value if no data passed through PARM parameter in JCL?

Will it create any error?
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expat

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Joined: 14 Mar 2007
Posts: 8620
Location: Back in jolly old England

PostPosted: Thu Jul 24, 2008 12:30 pm    Post subject:
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OK, so I am not a programmer, so someone will possibly let me know if I am wrong icon_eek.gif

1) I thought that the length of the parm field was the first 4 bytes of the PARM field defined to WS.

2) Can not ever recall it being signed, but then .......................

3) Here what will be the value of parm-length before the execution.? -- Technically speaking it won't exist before execution

4) Hazard a guess at a big fat zero

5) Will it create any error? -- Why have you not tried any of this for yourself before posting ?
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dick scherrer

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Joined: 23 Nov 2006
Posts: 19270
Location: Inside the Matrix

PostPosted: Thu Jul 24, 2008 12:48 pm    Post subject:
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Hi Expat,

No, you are not wrong.

This topic (and a couple others) are quite possibly mis-worded interview questions.
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dbzTHEdinosauer

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Joined: 20 Oct 2006
Posts: 6970
Location: porcelain throne

PostPosted: Thu Jul 24, 2008 12:48 pm    Post subject:
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expat,

first 2 bytes (PIC 9(4) comp.) of parm defined in linkage.

other than that, great answer.

this is the 3rd of these type of rookie questions that I have seen today on the board. 'print without dd', 'which record will be read', and this silliness.

all three of these threads should be in interview forum; or has this website decided to dumb-down the technical forums?
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