How to get File Size with out opening the file

michaelraj · New User Joined: 01 Sep 2005 Posts: 43 Location: Bangalore

Hi All,

I need a program to find the size of a file with out opening or reading the records. I want to know only the size of a file through cobol program and not the record length. I tried to search in the forum, but I did not get necessary info. So I request you all to please look into it and give some brief idea or else program outline.

Thanks & Regards,
-Mike.

martin9 · Posted: Tue Apr 11, 2006 3:32 pm

hy michaelraj,

your topic is not that easy to resolve with cobol.
if you have not any utility, which you can invoke
in cobol, you have to get this information from
somewhere else (ie. storage manager, idcams,
or whatsoever is useful) and give it to the cobol
program as an input.

you can also try to include in your cobol program
the appropriate ispf services. check your doku
for the call interface using ispf...

martin9

michaelraj · New User Joined: 01 Sep 2005 Posts: 43 Location: Bangalore

Hi Martin,

Thanks for your information. If it is not possible by cobol, please tell me whether is it possible with Rexx program. Or other wise explain how can we do this with IDCAMS. Waiting for your response,

Thanks & Regards,
-Mike.

bmadhu346 · New User Joined: 05 Jul 2005 Posts: 7 Location: hyderabad

hI

HI
U GOT GOOD QUESTION THAT HOW TO FIND OUT THE NUMBER OF RECORDS WITHOUT OPENING THE FILE
BOSS IF IT IS A GDG (GENERATION NUMBER) IF U HIT PF9 THEN WE WILL GET ALL THE PROPERTIES OF THE FILE .IN TSO ALSO WE CAN FIND OUT THROUGH FILEAID BUT I AM NOT SURE

mmwife · Super Moderator Joined: 30 May 2003 Posts: 1592

Hi Mike,

You can't get an exact count with blocked recs. You can for unblocked recs or blocked files that haven't been opend as MOD (EXTEND in COBOL speak). But you can approximate.

Does it have to be an exact count?

bmadhu346 · New User Joined: 05 Jul 2005 Posts: 7 Location: hyderabad

Hi
U got a Good Question
Please find and try this trick in TSO if u do in TSO really u will enjoy
Boss u can able to see the not only the file size .i mean all the attributes of the file charcters u can see
Please folloe the below procedure
1) Go to TSO regoin
2)Give 3.2 I think u know this opting genrally we will use for the data set creation like dataset creation u can see option like VSAM Utilities in 3.2 so give 'V' then below give the DATA SET name
3) Hit Enter
4) Then u will get VSAM utility screen
5)give 3 in process request and give 9 on data type(right side)
6)Hit enter
7)u will get other screen called the 'list catlog information'
8)in that give opting 4 in the catlog data type and give 'all' on right side
hit enter then give exec then u will get all the properties of the file

If u r unable to do let me know
Madhu

mmwife · Super Moderator Joined: 30 May 2003 Posts: 1592

Hi Madhu,

What you suggest will NOT get you the # of recs in the PS file. They can't get that piece of info because of what I noted in my prev post.