MAINFRAME - TIP OF THE DAY :
When you specified V for RECFM parameter, LRECL value is largest record in the file plus 4 bytes. These four bytes contain the actual length of each variable length record in the file
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Until you gain more familiarity with what VSAM is and how it works, a more technical answer would be of no help. . .
I mean why do we require concatination,
I know of no "requirement" to use concatenation. It is just another feature/tool to be used when appropriate. When it is appropriate is usually when there are multiple physical files that contain the same kind of data and need t be processed as a single file. _________________ Have a good one
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