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PERFORM WITH UNTIL OPTION:
The format is as shown below:
Illustration:
A) Perform p-3 until i > 5.
Here p-3 will be executed whenever i <= 5. Whenever the condition fails it executes p-3 and if the condition turns out to be true it skips p-3.
B) Perform p-2 thru p-4 until k > n.
It is alike to the former illustration. All the paragraphs from p-2 to p-4 will be executed till the particular condition is satisfied.
program
Data types available in COBOL are given below Alpha-numeric (X), numeric (9), alphabetic (A)
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)
Data Names and Identifiers: The Data name provides reference to the storage space in the memory where the real value is stored. This value takes part in the operation whene
Name the divisions in a COBOL program are given below DENTIFICATION DIVISION DATA DIVISION ENVIRONMENT DIVISION PROCEDURE DIVISION.
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
Size: The number of characters or digits needed to store the data item in the memory in termed as the Size of the data item. All the 4 general characteristics explained can
NESTED IF STATEMENT: The then and else statement of an IF statement can hold other IF statements. The involved IF statements in their turn may also hold other IF statements
Point Location: The position of the decimal point is the other characteristic which can be specified in the case of the numeric data items. If the position is not specified, t
Example of Level numbers - cobol programming: To explain the hierarchical structure introduced above, the concept of the level number is employed in COBOL. The most broad
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