Reading and Writing/Updating to same Dataset using Rexx?

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shantanuag
Member
Posts: 1
Joined: Sat Jul 09, 2011 4:22 pm

Reading and Writing/Updating to same Dataset using Rexx?

Post by shantanuag » Sat Jul 09, 2011 5:43 pm

Hi,

I want to Read a PDS using Rexx (Some thing like below):-

06.30 - 07.00 AM - NNN
07.30 - 08.00 AM - NNN
09.30 - 10.00 AM - NNN
12.30 - 14.00 AM - NNN
14.30 - 15.00 AM - NNN

Each time I want to read one Record at a time where the last 3 characters are only "NNN". After reading I want to move the Time Range into a variable and then update the same record immediately by "YYY" in place of "NNN". And the continue do this till the end of file.

Please can anyone help me on this...

Thanks in Advance..!

MrSpock
Active Member
Posts: 273
Joined: Wed Jun 27, 2007 5:37 pm

Post by MrSpock » Sat Jul 09, 2011 10:29 pm

You can use the EXECIO DISKRU command to READ a record for update, followed by the EXECIO DISKW command to WRITE the update.

10.3 EXECIO.

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