I usually do the MERGECAT first and then define the alias. I believe the ALIAS DEFINE will fail if there are entries in the MCAT that match it...
-----Original Message----- From: IBM Mainframe Discussion List [mailto:IBM-MAIN@LISTSERV.UA.EDU] On Behalf Of esmie moo Sent: Friday, September 22, 2017 11:16 AM To: IBM-MAIN@LISTSERV.UA.EDU Subject: MERGECAT QUESTION Gentle Readers, We have about hundreds of user dsns which are cataloged in the MCAT because the alias for the users were not defined.My question is the sequence I should follow. For example do I define the ALIAS and then perform the MERGECAT? or I perform the MERGECAT and then define the ALIAS?I don't have a test system in which I can try it out. Below is my jcl to run the MERGECAT:/* //STEP1 EXEC PGM=IDCAMS,REGION=2048K,TIME=1440 //DD1 DD VOL=SER=MCAT03,UNIT=SYSALLDA,DISP=OLD// DD VOL=SER=TST001,UNIT=SYSALLDA,DISP=OLD//SYSPRINT DD SYSOUT=* //SYSIN DD * REPRO - INDATASET(TSUT3.MCAT) - OUTDATASET(USERCAT.APPLIC) - LEVEL(CTPRT17) - MERGECAT - FILE(DD1) /* // Thanks. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN This email transmission and any accompanying attachments may contain CSX privileged and confidential information intended only for the use of the intended addressee. Any dissemination, distribution, copying or action taken in reliance on the contents of this email by anyone other than the intended recipient is strictly prohibited. If you have received this email in error please immediately delete it and notify sender at the above CSX email address. Sender and CSX accept no liability for any damage caused directly or indirectly by receipt of this email. ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN
