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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.
PROGRAM FOR SUBTRACT VERB: We have to write a simple program to elaborate the SUBTRACT verb. You can also use edit characters in the program. Identification division. Pr
Label Records / Disk Directory: The most important information stored in the header label is what is termed as the file title. In the situation of magnetic-disk files the labe
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
COMPUTE VERB: The COMPUTE verb is very powerful. All the evaluations performed by the other 4 verbs can also be completed easily by using the COMPUTE verb. Its normal format i
PERFORM WITH VARYING OPTION: The format is as shown below:
OPEN STATEMENT: Whenever a READ or a WRITE operation is executed on a file, then it should be open. The opening of a file may be completed with the help of the OPEN verb. With
Example of Write statement: Illustration: (i) WRITE TRANS-RECORD AFTER ADVANCING 3 LINES. This WRITE statement specified that the TRANS-RECORD is a record name of a fi
SIMPLE MERGE VERB: Like sorting, the merging of files is often required in different commercial application. It is likely to merge two or more files with the help of one MERGE
Numeric - Literals : The numeric literal can be created with the help of digits only. It can have a sign (+ or -) and can also have a decimal point. If no sign is specifi
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
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