Hello Vignesh, The ALIAS entry does not point to a UCAT - it points to the MCAT NVSAM entry.
What is the MLA value set to in your LOADxx member SYSCAT statement? What other entries do you have for B.** in your MCAT? These could be obscuring your ALIAS entry. > NONVSAM ------- A.DATA.SET > IN-CAT --- CATALOG.MASTER.CAT > HISTORY > DATASET-OWNER-----(NULL) CREATION--------2018.120 > RELEASE----------------2 EXPIRATION------0000.000 > VOLUMES > VOLSER------------VOL001 DEVTYPE------X'3010200F' > FSEQN------------------0 > ASSOCIATIONS > ALIAS----B.DATA.SET > ATTRIBUTES > > ALIAS --------- B.DATA.SET > IN-CAT --- CATALOG.MASTER.CAT > HISTORY > RELEASE----------------2 CREATION--------2018.120 > ASSOCIATIONS > NONVSAM-A.DATA.SET > Regards Bruce Hewson ---------------------------------------------------------------------- For IBM-MAIN subscribe / signoff / archive access instructions, send email to lists...@listserv.ua.edu with the message: INFO IBM-MAIN