What is the difference between index and subscript in COBOL?

Answer»

Subscript	Index
Means the number of occurrences of an array	This means the number of displacement POSITIONS of an array.
Always declared in the working-storage section.	It need not be declared INSIDE the working-storage section.
It is initialized by the MOVE statement	It is initialized by the SET operator.
It is comparatively slow to access	It is FASTER than Subscript
Value is incremented USING the ADD operator.	Here, the value is incremented using the MOVE operator
Not necessary to declare INDEXED BY clauses.	Necessary to declare INDEXED BY and any other clauses in Index.

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