#Array, COBOL Programming

Major difference between file and array
how does record read from array and file
why we are not preparing array for real time
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What is the difference between subscript and index

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77 level used for- It is Elementary level item. it Cannot be subdivisions of other items or cannot be qualified, or they can be subdivided themselves.

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REWRITE STATEMENT: As in the situation of a relative file, the REWRITE statement needs that the file should be opened in the I-O mode, and if the SEQENTIAL access mode is spec

Valid and Invalid Word - Cobol words: Valid Word             Invalid Word & Reason emp-sal                  -pay   ( it starts with a hyphen)  TOTAL MARK (blank space em