Entry Sequenced Data Set: Relative Record Data Set, IBM Mainframe Utility Programs, Job Control Language - Softcover

 
9786131923067: Entry Sequenced Data Set: Relative Record Data Set, IBM Mainframe Utility Programs, Job Control Language

Synopsis

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. An Entry Sequenced Data Set (ESDS) is a type of data set used by the VSAM computer data storage system. Records are accessed based on their sequential order, that is, the order in which they were written to the file; which means that accessing a particular record involves searching all the records sequentially until it is located, or by using a relative physical address (Relative byte address¿, RBA), i.e. the number of bytes from the beginning of the file to start reading.

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