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REWRITE statement:
The REWRITE statement is used to update the existing record in a disk file.
The normal format is as shown below:
REWRIE record-name [ FROM identifier ]
It may be keep in mind that the syntax is similar to that in the situation of a WRITE statement and the FROM option has similar meaning.
WRITE STATEMENT: The records are written to be logical place as determined from the value of the record key. The INVALID KEY condition occurs in the cases shown below: (i)
Configuration Section: This section holds an overall specification of the computer used for the purpose of the compilation and execution of the program. There are in all 3 par
program
Evaluate is like a case statement & Evaluate stamenet can be used to replace nested Ifs. The difference b/w EVALUATE and case is that there is no 'break' is required for EVALUATE
FILE DESCRIPTION- FIXED-LENGTH RECORDS: The normal characteristics of a file are explained in the file description (FD) entry of the DATA DIVISION.
Example of Redefines clause: This illustration describes a sales record that may either contain the total amount of sale or the quantity (QTY) and UNIT-PRICE. The aim of such
Identification Division: The Identification Division is the first division of each and every COBOL source program. The paragraph PROGRAM-ID is necessary in most of the mac
Can we declare a redefine clause as below? A Redefines B, PIC X(4)
NEGATED SIMPLE CONDITION: Any of the easy condition explained can be preceded by the logical operator NOT. The consequence of placing the operator NOT before an easy condition
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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