VSAM utilizes three primary methods to find logical records - Relative Byte Address, Relative Record Number, and Key field. Relative Byte Address assigns a unique address to each record based on sequential ordering. Relative Record Number is used in RRDS datasets to access records by a numbered sequ

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VSAM (Virtual Storage Access Method) is a crucial component in mainframe programming, offering various file types like ESDS, RRDS, and KSDS. VSAM data sets are organized into clusters, control areas, and control intervals for efficient data management. Control intervals and areas are dynamically man

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