Correct, but there are implications. It has to do with whether the allocations were dynamically created or not, and whether you will be de-concatenating them or not. That's why I keep telling the OP to locate a copy of the MVS Authorized Assembler Services Guide and read Chapter 26. Requesting dynamic allocation functions. There's some implications of what happens to datasets and concatenation groups that have the permanent attribute, for example, that need to be known before you go and slap DDNames into a single concatenation group.
I'm sort of think that the OP is writing something for use under TSO/ISPF because of his query about STEPLIB, TASKLIB and ISPLLIB, which then implies that he may need to preserve a concatenation group, like STEPLIB, before he adds to it so that when his program terminates he can put it back like it was. C- Charles (Chuck) Hardee Senior Systems Engineer/Database Administration CCG Information Technology Thermo Fisher Scientific 300 Industry Drive Pittsburgh, PA 15275 Direct: 724-517-2633 FAX: 412-490-9230 chuck.har...@thermofisher.com -----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of Charles Mills Sent: Monday, August 04, 2014 8:59 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: Dynamic Alocation question I believe you can concatenate any two allocations that make sense to concatenate. All you need is the two DD names. Charles -----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of MichealButz Sent: Monday, August 04, 2014 8:45 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: Re: Dynamic Alocation question Hi, does this mean If I want to concatenate MYTEST.LOADLIB I first dynamically allocate it use use the ddname returned to me by SVC 99 Then use text key DCCDNAM ? can I concatenate ISPLLIB and/or STEPLIB or TASKLIB returned from TSOLIB ? ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
