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Record Description for the Variable-length Records:
When the variable- length records consists of records of various lengths, each record type is to be explained at level 01 following the FD entry for the file. The variable part is defined with the OCCURS...DEPENDING clause.
FD VARIABLE-FILE
RECORD CONTAINS 40 TO 92 CHARACTERS
BLOCK CONTAINS 933 TO 1024 CHARACTES
LABEL RECORDS AERA ATANDARDA
RECORDING MODE IS V
VALUS OF INDENTIFICATION IS "VARFILE".
01 VARIABLE-RECORD.
02 ACCOUNT-NUMBER PIC 9(6).
02 NAME PIC X(20).
02 NO-OF-PAYAMENTS PIC 9.
02 PAYMENTS OCCURS 1 TO 5 TIMES DEPENDING ON
NO-OF-PAYMENTS INDEXED BY TAB-INDEX.
03 DATE-OF-PAYAMENT 9(6).
03 AMOUNT-OF-PAYMENT 9(5)V99.
Rules of read statements: The next record is identified according to the rules as shown below: (i) Whenever the READ NEXT statement is the initial statement to be executed
GIVING file-name-5. The input files to be merged through the MERGE statements which are specified in the USING phrase. These files should be sequential files and should be
Comparison of Numeric Operands: We are well-known with the kind of the relational condition where both the operands are numeric. The comparison in this situation is algebraic
PERFORM WITH VARYING OPTION: The format is as shown below:
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
GO TO, STOP RUN: The GO TO verb is used to completely transfer the control to elsewhere in the program. Its form is as shown below: GO TO procedure-name As a result o
PERFORM STATEMENT: The PERFORM statement can be used to execute the group of consecutive statements written elsewhere in the program. We refer to this group of statements a
Example of Open statement: Illustration: The OPEN INPUT TRANSACTION, OLD-MASTER OUTPUT NEW-MASTER. The illustration represents that there are two input files named the
Literals: The actual values can too appear in a program. These values are termed as literals. For illustration, the statement MOVE 0 TO TOTAL indicates that the value zero wil
calculate simple interest
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