VSAM 1. What are the different types of VSAM files available? ESDS: Entry Sequence Data Set KSDS: Key Sequence Data Set RRDS: Relative Da...

    1.      Explain EXEC statement with the various parameters used. The PGM parameter specifies the Program to be executed. ACCT parameter...

GDG GDGs are a group of datasets related to each other chronologically and functionally. Features: 1.        All datasets within a GDG will ...

DEFINE CLUSTER Command DEFINE CLUSTER     (NAME(entryname)     {CYLINDERS(primary] secondary])  |      RECORDS(primary[ secondary])      ...

Modal Commands It is possible to include AMS commands to perform more than one function in a single execution of the IDCAMS utility.  Theref...

Search Order for Locating 1.        Search all catalogs specified in STEPCAT 2.        If not found, search all catalogs specified in JOBCA...

Types of Catalog based on Function a.       Master Catalog Every system that uses VSAM has one, and only one, master catalog.  The master c...

         CATALOG is physically another VSAM dataset. It contains information about other datasets. It provides users the ability to locate ...

ESDS KSDS FL-RRDS VL-RRDS LDS Order Recs are in the same order as they are entered ...