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JCL - whether it belongs to HLL or MLL


IBM Mainframe Forums -> JCL & VSAM
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stargazer123

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Joined: 13 Feb 2004
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PostPosted: Thu Feb 26, 2004 10:13 pm
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what kind of language jcl is ? whether it belongs to HLL or MLL ? icon_question.gif
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bluebird

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Joined: 03 Feb 2004
Posts: 127

PostPosted: Thu Feb 26, 2004 10:45 pm
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what is HLL ? what is MLL ?

JCL is not really a language, it is more a data definition script.
hence u define your files and call pgms that use thoses files.

does it answer your question ?
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krbabu

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Joined: 20 Feb 2004
Posts: 57

PostPosted: Fri Feb 27, 2004 10:09 am
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Hi,
JCl is not a language like COBOl,PL/I -----. It is used to submit the group of comands together to be run.
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sandip_datta

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Joined: 02 Dec 2003
Posts: 150
Location: Tokyo, Japan

PostPosted: Fri Feb 27, 2004 11:36 am
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HLL means I guess High Level Language. I think JCL can best be explained as a bridge between Application Programming Language like COBOL,EZ etc and OS like MVS.

Sandip.
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mcmillan

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Joined: 18 May 2003
Posts: 1207
Location: India

PostPosted: Fri Feb 27, 2004 2:09 pm
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Hai stargazer123,

JCL is not a HLL or LLL, It's a MLL.

It's better known as an Interpreter and act as an interface b/w your OS and Application Programs.

It's interpreted by your Job entry subsystem. It's primary goals are sheduling the jobs, assigning priorities, Specifying required resources, introducing location, specifying time limits etc...
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