2014 – Page 5 – Rui Miguel Feio

Recent Articles

[ 19th October 2026 ] When AI Meets RACF: Can an Authorised Identity Become a Security Risk? RACF
[ 14th October 2026 ] AI Gone Wild: When Artificial Intelligence Stops Following the Rules Documentaries
[ 12th October 2026 ] The AI Systems Programmer: Is the Mainframe Skills Gap About to Change? Tech - AI
[ 5th October 2026 ] AI Sovereignty: Perhaps the Mainframe Had It Right All Along Tech - AI
[ 21st September 2026 ] AI on the Mainframe Is Moving from Experimentation to Production Tech - Mainframe

Disconnect a User Catalog from the Master Catalog

20th January 2014 Rui Miguel Feio

The following JCL can be used to disconnect a User Catalog from the Master Catalog of your z/OS system: //EXPORT EXEC PGM=IDCAMS //SYSPRINT DD SYSOUT=* //SYSIN DD * EXPORT user_catalog_name DISCONNECT /* user_catalog_name should be replaced by the name of your User Catalog dataset name. Alternatively you can issue […]

ISPF Utilities: ISRFIND, ISRDDN and DDLIST

20th January 2014 Rui Miguel Feio

ISRFIND, ISRDDN and DDLIST are 3 of the most useful utilities under ISPF. ISRFIND and ISRDDN can be invoked as TSO commands, i.e., by issuing TSO ISRFIND and TSO ISRDDN on the ISPF command line. DDLIST on the other hand is an ISPF command table entry that invokes ISRDDN. This […]