Rational Developer for System z
Enterprise COBOL for z/OS, Version 4.1, Programming Guide


Working with QSAM files

To work with QSAM files in a COBOL program, you define and allocate them, retrieve them, and ensure that their file attributes match those in your program. You can also use striped extended-format QSAM data sets to help improve performance.

related references  
Allocation of buffers for QSAM files


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