common form of the read statementsformat 1 is the, COBOL Programming

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common form of the read statementsformat 1 is the

Common form of the READ statements:

Format 1 is the common form of the READ statements.

Format 2 is used when the access mode is either random or dynamic. For illustration, assume REL-KEY is the names for the relative file and the relative key data item respectively. The statements below will read the 50^th record from the file.

MOVE 50 TO REL-KEY.

READ REL-FILE RECORD INVALID-KEY GO TO PARA-INVALID.

Format 3 of the read statement can be used whenever the access mode is dynamic and the records are to be read successively.

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COBOL Programming: common form of the read statementsformat 1 is the

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