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INPUT-OUTPUT SECTION:
This section holds information regarding the files to be used in the program. There are 2 paragraphs in this section- FILE-CONTROL & I-O-CONTROL.
The FILE-CONTROL is used almost in every program. Below are some of the entries of the FILE-CONTROL paragraph. The Input-Output section is elective in many computers.
PICTURE specification: The size of a group item is equivalent to the total of the sizes of all the subordinate elementary items. The group item class is alphanumeric. The i
COMPOUND CONDITION: The two simple conditions can be connected by the logical operators AND or OR to form a compound condition (also termed as combined condition). When two co
Example of add verb: (a) ADD A TO B. This illustration represents that the value of A will be added to the value of B and the result will be stored in B. The alignment of
REDEFINES CLAUSE: At times it may be found that two or more storage regions defined in the DATA DIVISION are not in use concurrently. In such situations only one storage regio
DATA RECORD CLAUSE: The DATA RECORD clause, documents the record names defined for the file. For illustration, DATA RECORDS ARE REC-1, REC-2, REC-3 that means there are 3diffe
program
RULES OF RENAMES CLAUSE: The rules below should be observed while using the RENAMES clause: (i) All RENAMES entries should be written only after the last record descript
Example of Nested if statement: Illustration: Consider the following sentence The nested IF sentence holds two IFs and one ELSE. The IF-ELSE couple has been marke
OCCURS - INDEXED BY PROGRAM: identification division. program- id. searching. environment division. data division. working-storage section. 01 table1. 0
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 B) Perform p-2 thru
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