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praveenkumar.k
New User
Joined: 17 May 2012 Posts: 2 Location: INDIA
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Hi,
Recently I have been asked in an interview as to why we don't compile a JCL where as we are doing it for a COBOL program. My answer was that JCL is built to give instructions to mainframe but it is not the case with a program & that to run a program we need load which isn't required for JCL.
Please shed some light on this as to whether my understanding is correct else please let me know the reason.
PS: Searched internet for this but unable to find an answer. |
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PeterHolland
Global Moderator
Joined: 27 Oct 2009 Posts: 2481 Location: Netherlands, Amstelveen
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Read chapter 3 in :
ABCs of OS/390 System Programming Volume 2 |
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rakesha.hg
Active User
Joined: 21 Mar 2008 Posts: 161 Location: bangalore
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this reminds me of my college day Microprocessor lab.
My external asked me why i was inputting only 1,2,3....0 and a,b,c ....f and why not z, x an all .... i kept quiet (my actual response in mind #%^^%$^$%^*^#$@##E%^ ) |
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rakesha.hg
Active User
Joined: 21 Mar 2008 Posts: 161 Location: bangalore
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Did you get the answer??
easiest explaination to give for this is JCL (JCL statements) are interpreted by JES (job entry subsystem, JES2 or JES3), thats why its not compiled. |
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praveenkumar.k
New User
Joined: 17 May 2012 Posts: 2 Location: INDIA
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yup, that's right... JCL is a machine understandable (low-level) language where as COBOL is higl level lanuagae so requires compilation.
Thanks for the help guys. |
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dbzTHEdinosauer
Global Moderator
Joined: 20 Oct 2006 Posts: 6966 Location: porcelain throne
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Quote: |
JCL is a machine understandable (low-level) language |
nope, that's wrong! |
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Bill Woodger
Moderator Emeritus
Joined: 09 Mar 2011 Posts: 7309 Location: Inside the Matrix
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Errr..... No. Don't think you've quite got it.
Try this and continue your research. |
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Akatsukami
Global Moderator
Joined: 03 Oct 2009 Posts: 1788 Location: Bloomington, IL
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There is a long and not particularly funny joke which ends with a judge asking a rabbi if he was gambling, to which the rabbi responds, "With who?"
Likewise, if asked why JCL isn't compiled, an appropriate answer would be, "With what?" |
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enrico-sorichetti
Superior Member
Joined: 14 Mar 2007 Posts: 10874 Location: italy
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with a/the jcl compiler... what else
sorry but it' s friday
the topic is going down the sink/toilet, will be locked shortly |
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