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Transaction file:
A transaction file is a file which contains new records those changes to old records which are used to update the master file.
The problem of file updation can be defined as shown below:
ROUNDED OPTION: Let us consider the DATA DIVISION entries which are as shown below: Now, subsequent to the execution of the statement ADD A B GIVING C, the C will hold
FILE-CONTROL ENTRIES FOR THE SEQUENTIAL FILES: The characteristics of each and every files handled in a program are specified in the ENVIRONMENT DIVISION and DATA DIVISION.
FILE-CONTROL paragraph for the indexed files: The common format for the SELECT clause for a file is as shown below: SELECT file-name ASSIGN TO implementor -name
Example of Perform statement: PERFORM BEGIN-CALCULATION THRU END-CALCULATION. Assume, BEGIN-CALCULATION and END-CALCULTION is paragraph names. The execution of the PERFORM
READ STATEMENT: The aim of this verb is to make available the next logical record from the input file. It is important to note the meaning of the "next" logical record in the
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
WRITE STATEMENT: The WRITE Statement verb releases a record in an output file. The syntax for the WRITE statement can be unlike depending on the output device and the medium us
SUBTRACT VERB: The SUBTRACT verb is used to subtract one, or the sum of two or more numbers from one or more numbers and to store the result. The form of the SUBTRACT verb
When using the accept verb in cobol is it possible to assign something other then "SYSIN" for a ddname?
RULES OF MOVE VERB: The Data movement is managed by the rules which are as shown below: (a) The contents of the identifier - 1 or the value of the literal - 1 is moved to
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