Explain The Differences Between Vsam And Non-vsam Files

1.	Explain The Differences Between Vsam And Non-vsam Files
Answer» The AMS program is used for creation of VSAM files - ISPF panel or a standard JCL is used for creation of a NON-VSAM dataset. The VSAM information is stored in catalogs - The NON-VSAM information is stored in VTOC as dataset labels The data set organization in VSAM files are Key SEQUENCED, Entry sequenced and Relative record data sets A data set is a physical records that are stored on a disk or TAPE , is a COLLECTION with a unique name The data set is normally identified by the MVS with labels The label information need to be supplied in JCL The data set organization in NON-VSAM files are sequenced, INDEXED Sequential, Direct and partitioned A data set is a physical records that are stored on a disk or tape , is a collection with a unique name The data set is normally identified by the MVS with labels The label information need to be supplied in JCL The data set organization in NON-VSAM files are sequenced, Indexed Sequential, Direct and partitioned

Answer»

The AMS program is used for creation of VSAM files - ISPF panel or a standard JCL is used for creation of a NON-VSAM dataset.
The VSAM information is stored in catalogs - The NON-VSAM information is stored in VTOC as dataset labels
The data set organization in VSAM files are Key SEQUENCED, Entry sequenced and Relative record data sets

A data set is a physical records that are stored on a disk or TAPE , is a COLLECTION with a unique name

The data set is normally identified by the MVS with labels

The label information need to be supplied in JCL

The data set organization in NON-VSAM files are sequenced, INDEXED Sequential, Direct and partitioned

A data set is a physical records that are stored on a disk or tape , is a collection with a unique name

The data set is normally identified by the MVS with labels

The label information need to be supplied in JCL

The data set organization in NON-VSAM files are sequenced, Indexed Sequential, Direct and partitioned

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