How does the PERFORM UNTIL statement differ from the PERFORM VARYING statement in COBOL?
- Both statements are identical and can be used interchangeably
- PERFORM UNTIL executes the loop until a condition is true, while PERFORM VARYING iterates over a range of values
- PERFORM UNTIL is used for nested loops, and PERFORM VARYING is used for single loops
- PERFORM VARYING executes the loop until a condition is true, while PERFORM UNTIL iterates over a range of values
The PERFORM UNTIL statement in COBOL executes the loop until a specified condition is true, whereas PERFORM VARYING iterates over a range of values for a loop variable. They serve different purposes in controlling loop execution.
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