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How to read record count thru REXX

 
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amitrath

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Joined: 30 Apr 2004
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Location: Carmel, USA.

PostPosted: Mon Apr 03, 2006 8:31 pm    Post subject: How to read record count thru REXX
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Hello everyone,

Can anyone tell me how to get the record count of any dataset (whatever dataset type, including VSAM) using rexx. I do not want to open/read the dataset. Is there any variable (say in LISTDSI) where I can read this data.

No code required. Give me the key-word. Thanks in advance.
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superk

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Joined: 26 Apr 2004
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Location: Raleigh, NC, USA

PostPosted: Mon Apr 03, 2006 8:36 pm    Post subject: Re: How to read record count thru REXX
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amitrath wrote:
Is there any variable (say in LISTDSI) where I can read this data.


Nope, unless the dataset is a PDS, in which case you can get the "size" value from the ISPF statistics of the member.
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amitrath

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PostPosted: Mon Apr 03, 2006 11:59 pm    Post subject: Re: How to read record count thru REXX
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Thanks Superk for your prompt reply !

If you mean SPACE by 'size', then yes, we can get it from ISPF variables. But ISPF also shows the 'number of records' for any particular dataset in the panels (say =3.4). Is there any way I can find out where does this data come from? ISPF cannot be counting the lines. May be from some ISPF variable?

Thanks again.
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superk

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PostPosted: Tue Apr 04, 2006 2:24 am    Post subject: Re: How to read record count thru REXX
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amitrath wrote:
But ISPF also shows the 'number of records' for any particular dataset in the panels (say =3.4).


No, it doesn't.
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amitrath

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PostPosted: Tue Apr 04, 2006 4:44 am    Post subject: Re: How to read record count thru REXX
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May be you are right. ISPF displays the number of records only in case of PDS.

Can you please tell where does this data comes in case of a PDS?
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superk

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PostPosted: Tue Apr 04, 2006 7:03 pm    Post subject: Re: How to read record count thru REXX
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All of that information is retained in the PDS directory.
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martin9

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Joined: 01 Mar 2006
Posts: 287
Location: Basel, Switzerland

PostPosted: Tue Apr 04, 2006 7:39 pm    Post subject:
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hy amitrath,

for a ps-file, if you need the exact number of records,
you have to open and read it.

for a pds-file, with SYSDSN you can get the number of members included
in the pds-file SYSMEMBERS, there is a possibility with ispf statistics data, but this won't be available in any case. to be sure you can force the statistics
with ispf-service LMMSTATS...

martin9
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