$ISPFSTAT()

Decodes and encodes ISPF PDS member statistics.

ALLOC()

Dynamically allocates new or existing data sets.

DB2()

Issues a dynamic SQL request to DB2.

DEALLOC()

Dynamically deallocates a specified file.

SAM()

Processes a sequential file or PDS.

VSAM()

Performs I/O operations on VSAM files.