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CONDITION - COBOL Programming:
The condition is an entity which at one point of time can have only one of the two values - true or false. As we already know that, the IF verb makes use of the conditions. In the COBOL, a condition can be any one of the following:
1) Relational condition
2) Sign condition
3) Class condition
4) Condition-name condition
5) Negated simple condition and
6) Compound condition.
NEGATED SIMPLE CONDITION: Any of the easy condition explained can be preceded by the logical operator NOT. The consequence of placing the operator NOT before an easy condition
OCCURS CLAUSE - PROGRAM: We have to write a program to demonstrate the occurs clause. Get names of the students and show them on the screen. identification division.
PROGRAM FOR INVENTORY We have to write a program to update the inventory file. Consider 2 files,viz, invfile an tranfile. Invfile has 3 fields pno,name,qty. Tranfile has 3 fil
Column and Field in COBOL program: In COBOL there are 2 types of entries termed as margin A and margin B entries. The Margin A entries start from the column 8, 9, 10 or 11 and
SIMPLE MERGE VERB: Like sorting, the merging of files is often required in different commercial application. It is likely to merge two or more files with the help of one MERGE
PROGRAM FOR ADD VERB: We have to write a simple program to elaborate the ADD verb. You can also use edit characters in the program. Identification division. Program- id.
DELETE STATEMENT : The file should be opened in the I-O mode. If the access is SEQUENTIAL, the INVALID KEY phrase must be specified. Rather than, the last input-output state
Example of Special-names: Consider the illustration: Let the SPECIAL-NAMES paragraph be as shown: SPECIAL-NAMES. CHANNEL 1 IS PAGE-TOP. The Channel is related with the t
program
FILE STATUS clause: This clause has been involved in the above syntax for completeness. The ORGANIZATION, REVERSE, ACCESS and STATUS clause can be specified in any order.
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