COBOL Combined Condition

• A combined condition is a logical group with two or more conditions.
• It is used to test multiple conditions to produce a single decision.
• It uses AND and OR to combine multiple conditions.

Syntax -

AND -

The combined condition is true when all conditions coded in it are true with AND.

For example - Employees who have a salary greater than 50000 and have been with the company for more than 5 years are eligible for bonus.

IF  WS-SALARY > 50000 
AND WS-YEARS-OF-SERVICE > 5
    DISPLAY "ELIGIBLE FOR BONUS"
ELSE
    DISPLAY "NOT ELIGIBLE FOR BONUS"
END-IF

OR -

The combined condition is true when either one or all condition(s) are true with OR.

For example - Employees with a salary greater than 50000 or who have been with the company for more than 5 years are eligible for a bonus.

IF WS-SALARY > 50000 
OR WS-YEARS-OF-SERVICE > 5
    DISPLAY "ELIGIBLE FOR BONUS"
ELSE
    DISPLAY "NOT ELIGIBLE FOR BONUS"
END-IF

Combining AND and OR Together -

We can also use both 'AND' and 'OR' in a single combined condition. It is important to use parentheses () to describe the order in which the conditions are evaluated.

For example - Employees who have a salary greater than 50000 and have been with the company for more than 5 years or who are in a managerial position are eligible for the bonus.

IF (WS-SALARY > 50000 AND WS-YEARS-OF-SERVICE > 5) 
OR WS-POSITION = 'MANAGER'
    DISPLAY "ELIGIBLE FOR BONUS"
ELSE
    DISPLAY "NOT ELIGIBLE FOR BONUS"
END-IF

Table for Result validation -

Condition1 (C1)	Condition2 (C2)	C1 AND C2	C1 OR C2	NOT (C1 AND C2)	NOT (C1 OR C2)
True	True	True	True	False	False
False	True	False	True	True	False
True	False	False	True	True	False
False	False	False	False	True	True

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