DSN supports the following parameters:
A high level qualifier that identifies the data sets to be selected. This is dynamically allocated. No JCL is needed to reference this dsname.
A mask that is used to select the data sets for display. Any data set names that match this pattern will be selected.
* - An asterisk signifies any number of characters starting in this position.
% - A percent sign is a placeholder for a character in the specific position.
This example syntax lists DSN information for all files with the high level qualifier of CA.FMMVS41.EXECS.
DSNINFO, DSN(CA.FMMVS90.EXECS)
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