Subscript and an index in a table definition, Computer Engineering

What is the difference between a subscript and an index in a table definition?

Ans) A subscript is a working storage data definition item, typically a PIC (999) where a value must be moved to the subscript and then increased or decrements by ADD TO and SUBTRACT FROM statements. An index is a register item that exists outside the program's working storage. 

 

 

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