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WRITE statement:
The WRITE statement for tape and sequential-disk files has the syntax shown below.
WRITE record-name [ FROM identifier ]
As a result of the execution of the WRITE statement, the record is free from the record region and is written onto the file.
Example of Perform statement: PERFORM BEGIN-CALCULATION THRU END-CALCULATION. Assume, BEGIN-CALCULATION and END-CALCULTION is paragraph names. The execution of the PERFORM
CLASS CONDITION: The class condition establishes whether or not the value of the operand is numeric or alphabetic. The operand is numeric if it contains only the digits 0 t
Example of File-control: The assign clause assigns a specific physical peripheral device name to a file. The physical peripheral device are machine-dependent. We use the devic
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
Example of constructing an arithmetic expression: An arithmetic expression may be proceeded by a + or - sign. These operations are known as unary + or unary - operators. Il
ON SIZE ERROR OPTION: Whenever a size error occurs, the contents of the result field after the operation is unpredictable. Though, the processing is not-terminated and the co
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
PROGRAM FOR PERFORM - VARYING: We have to write a program to elaborate PERFORM ...VARYING Identification division. Program- id. PerfVary. Environment division. Dat
Example of compound condition: In common, a compound condition has the form which is as shown below: Where condition-1 & condition-2 can be any one of the below:
REWRITE STATEMENT: The REWRITE statement has the format for a relative file as shown below, REWRITE record-name [ FORM identifier ]
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