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CLOSE STATEMENT:
When the processing of a file is completed, then the file may be closed. This is completed with the help of the CLOSE-verb. The form of the CLOSE statement is as shown below:
CLOSE file-name-1 [, file-name-2] ...
The file should be open when a close statement can be executed. And once a file is closed, it is no longer accessible to the program. It must be opened again if the file is needed consequently. It may be noted that dissimilar the OPEN statement, the nature of the use of the input & output file must not be mentioned in the CLOSE statement.
Illustration:
CLOSE OLD-MASTER, TRANSACTION, NEW-MASTER, PRINT-FILE.
This statement will close all the 4 files - TRANSACTION, OLD-MASTER, PRINT-FILE and the NEW MASTER.
Illustration of Perform with varying option: A) Perform para-3 varying the k from 1 by 1 until k > 10. Here para-3 will be constantly executed 10 times (For k=1,2,3, .....1
CLOSE statement: The simplified syntax of the CLOSE statement is as shown below: CLOSE file-name-1 [WITH LOCK ] [ , file-
Display control verbs in Cobol
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Abbreviation: The Consecutive relational conditions in a compound condition can be abbreviated in many cases as shown: (i) When the subjects in the consecutive relational c
INPUT AND OUTPUT PROCEDURE IN SORT STATEMENT: The common format of the SORT statement can write as shown below: The format of the RELEASE statement is as shown be
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
COBOL Words: The COBOL word can be formed by using the characters as shown below: 0-9 A-Z (a-z) - (hyphen) The rules below should be hold in forming the COBOL words.
calculate simple interest
UPDATING OF THE RELATIVE AND INDEXED FILES: The Sequential files are updated by creating a new master file from an existing old master file and a transaction file. Such an Upda
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