I'd loop over the datasets, doing allocate, process, free for each before going to the next.
-- Shmuel (Seymour J.) Metz http://mason.gmu.edu/~smetz3 ________________________________________ From: IBM Mainframe Discussion List <[email protected]> on behalf of Joseph Reichman <[email protected]> Sent: Thursday, October 1, 2020 5:19 PM To: [email protected] Subject: Re: SVC 99 unallocating a concatenated dataset I don’t know if I would find the space I work for the IRS have to get ready filing season 2021 Looking for data in filing season 2020 Huge amounts of DASD > On Oct 1, 2020, at 5:16 PM, Lizette Koehler <[email protected]> wrote: > > Just a thought, > > Why not put all datasets in a sequential file. Which is then used as input > to your process > > Then your process could do > > Read input list of files > Do Loop until Input all read > Open file > Search file > If match - do Something > Close file > End loop > > Keep going through as many datasets that are in your input file. Or is this > something you are doing already? > > > Why waste JCL space? > > Lizette > > PS I know nothing about what you are doing, so this is just a suggestion. > All thoughts are my own > > > > -----Original Message----- > From: IBM Mainframe Discussion List <[email protected]> On Behalf Of > Joseph Reichman > Sent: Thursday, October 1, 2020 1:59 PM > To: [email protected] > Subject: Re: SVC 99 unallocating a concatenated dataset > > You may be right > > Was doing it in assembler > > Because that’s the language used > > But whatever works > > Thanks > > PS my code was proceeded by a call IGGCSI00 to get the dataset names > >>> On Oct 1, 2020, at 4:54 PM, Paul Gilmartin >>> <[email protected]> wrote: >>> >>> On Thu, 1 Oct 2020 16:46:25 -0400, Joseph Reichman wrote: >>> >>> Have to read 4,471 files ( VB files ) looking For data obviously >>> there is a concatenation limit which is why my question were centered >>> dynamic allocation and deallocation >>> >> Does a concatenation gain you anything compared to the simple: >> >> DO FOR 4471 >> ALLOCATE >> OPEN >> look for data >> CLOSE >> FREE >> END >> >> -- gil >> >> ---------------------------------------------------------------------- >> For IBM-MAIN subscribe / signoff / archive access instructions, send >> email to [email protected] with the message: INFO IBM-MAIN > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, send email to > [email protected] with the message: INFO IBM-MAIN > > ---------------------------------------------------------------------- > For IBM-MAIN subscribe / signoff / archive access instructions, > send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to [email protected] with the message: INFO IBM-MAIN
