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PROGRAM FOR SIMPLE PERFORM:
We have to write a program to elaborate simple PERFORM statement
Identification division.
Program- id. Perf1.
Environment division.
Data division.
Procedure division.
Para-1.
Display(1 1) erase.
Display "ABC".
Perform para-2.
Display "XYZ".
Stop run.
Para-2.
Display "DEF".
Description: The output of the program will be ABC
DEF
XYZ
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
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
RULES OF MOVE VERB: The Data movement is managed by the rules which are as shown below: (a) The contents of the identifier - 1 or the value of the literal - 1 is moved to
FILE CHARACTERISTICS: The task of file handling is the responsibility of the system software termed as IOCS (Input-Output control system). Record Size: We know that th
START STATEMENT: The START statement places the files to the initial logical record whose record key satisfies the condition specified by the KEY phrase. The access mode shoul
Concept of a two-dimensional table: Concept of a two-dimensional table can be easily extended to tables having three or more dimensions. The Handling of tables up to three dim
Illustration of Renames clause: In the illustration, PAT-OTHER-THAN-BASIC will become a fresh group consisting of DEARNESS-ALLOWANCE, HOUSE-RENT & MTHLY-INCENTIVE. Keep in min
Edit Characters for Numeric Data: The characters below can be used in the PICTURE clause to indicate the editing. Z * $ - + CR DB . , B O /
READ STATEMENT: The aim of this verb is to make available the next logical record from the input file. It is important to note the meaning of the "next" logical record in the
Occurs Clause: Let us establish tables with the help of an illustration. Assume that there are ten different types of income-tax rates that are read from some input medium and
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