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Re: DLI loading on Tk4 and MVSCE?


 

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John,

It has been a VERY LONG TIME AGO – however, I seem to remember there is a HIGH VALUES record at the end

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There were many tricks with the old IMS data bases – like loading in reverse sequence to prevent the index from getting overwhelmed as it grew

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-J-

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Jeff Bassett

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From: [email protected] <[email protected]> On Behalf Of John James via groups.io
Sent: Thursday, February 20, 2025 8:29 AM
To: [email protected]
Subject: Re: [H390-MVS] DLI loading on Tk4 and MVSCE?

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So... a brief update in case anyone is really interested.

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A couple of little tweaks to the COBOL code and to the VSAM cluster setup, and it all appears to have worked. A hundred thousand segments loaded onto a new DL/I database successfully, and read back/printed using IDCAMS.

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Just one interesting thing, there's a 100,001st segment loaded at the back end of the VSAM file, which appears to have some kind of high-values key. I suspect that it's been added there by DL/I or VSAM for some obscure reason that will hopefully become clear in due course.

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I hope to have time soon to get onto some real testing - updating segments, inserting and deleteing segmants, and so on.

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JJ

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