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difference between vsam,qsam&gsam datasets?


IBM Mainframe Forums -> IMS DB/DC
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snm

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Joined: 10 Mar 2005
Posts: 11

PostPosted: Thu Aug 11, 2005 12:20 pm
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hi
what is the difference between qsam,vsam&gsam datasets?
thanks®ards
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Karthikt

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Joined: 15 Aug 2005
Posts: 51

PostPosted: Mon Aug 15, 2005 12:01 pm
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There are all concepts.

VSAM is an indexed file.
IMS/DC is based on QSAM concept.

You can also build IMS/DB based on GSAM concept.

Generally IMS database would build in HSAM, HISAM concept.
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