I have the requirement to compare the two files and pick up
the matching records.
File 1. file2
23 32
32 13
34 15
35 36
36 35
43
Get the matching records from this 2 files to out file. how
you will do this in cobol program?
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Answer Posted / bala
FILE SECTION.
FD OLD-MASTER
LABEL RECORDS ARE STANDARD.
01 OLD-MASTER-REC.
05 M-ACCT-NO PIC X(5).
05 AMOUNT-DUE PIC 9(4)V99.
05 PIC X(89).
FD TRANS-FILE
LABEL RECORDS ARE STANDARD.
01 TRANS-REC.
05 T-ACCT-NO PIC X(5).
05 AMT-TRANS-IN-CURRENT-PER PIC 9(4)V99.
05 PIC X(89).
FD NEW-MASTER
LABEL RECORDS ARE STANDARD.
01 NEW-MASTER-REC.
05 ACCT-NO-OUT PIC X(5).
05 AMOUNT-DUE-OUT PIC 9(4)V99.
05 PIC X(89).
WORKING-STORAGE SECTION.
PROCEDURE DIVISION.
100-MAIN-MODULE.
PERFORM 800-INITIALIZATION-RTN.
PERFORM 600-READ-MASTER.
PERFORM 700-READ-TRANS.
PERFORM 200-COMP-RTN
UNTIL M-ACCT-NO = HIGH-VALUES
AND
T-ACCT-NO = HIGH-VALUES
PERFORM 900-END-OF-JOB-RTN.
STOP RUN.
200-COMP-RTN.
EVALUATE TRUE
WHEN T-ACCT-NO = M-ACCT-NO
PERFORM 300-REGULAR-UPDATE
WHEN T-ACCT-NO < M-ACCT-NO
PERFORM 400-NEW-ACCOUNT
WHEN OTHER
PERFORM 500-NO-UPDATE
END-EVALUATE.
300-REGULAR-UPDATE.
MOVE OLD-MASTER-REC TO NEW-MASTER-REC
COMPUTE AMOUNT-DUE-OUT = AMT-TRANS-IN-CURRENT-PER
+ AMOUNT-DUE
WRITE NEW-MASTER-REC
PERFORM 600-READ-MASTER
PERFORM 700-READ-TRANS.
400-NEW-ACCOUNT.
MOVE SPACES TO NEW-MASTER-REC.
MOVE T-ACCT-NO TO ACCT-NO-OUT.
MOVE AMT-TRANS-IN-CURRENT-PER TO AMOUNT-DUE-OUT.
WRITE NEW-MASTER-REC.
PERFORM 700-READ-TRANS.
500-NO-UPDATE.
WRITE NEW-MASTER-REC FROM OLD-MASTER-REC.
PERFORM 600-READ-MASTER.
600-READ-MASTER.
READ OLD-MASTER
AT END
MOVE HIGH-VALUES TO M-ACCT-NO
END-READ.
700-READ-TRANS.
READ TRANS-FILE
AT END
MOVE HIGH-VALUES TO T-ACCT-NO
END-READ.
800-INITIALIZATION-RTN.
OPEN INPUT OLD-MASTER
TRANS-FILE.
OPEN OUTPUT NEW-MASTER.
900-END-OF-JOB-RTN.
CLOSE OLD-MASTER
TRANS-FILE
NEW-MASTER.
Hope this is useful.
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