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What is the difference b/w index and subscript?
Subscript indicates to the array occurrence whereas index is the displacement (in no of bytes) from the beginning of the array. An index can only be modified using PERFORM and SEARCH and SET.
Sign - Picture clause: The numeric data item can be signed or unsigned. If a numeric data is regarded as unsigned then during the execution these unsigned data items are treat
WRITE statement: The WRITE statement for tape and sequential-disk files has the syntax shown below. WRITE record-name [ FROM identifier ] As a resu
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
There are some restrictions when these procedures are used. (i) The Procedure should not contain any SORT/MERGE statement. (ii) An explicit transfer of the control outside
READ STATEMENTS: The common format for the read statements is as shown bellow. Format 1: READ file-name RECORD [ INTO identifier ] [ ; AT END imperative-s
ADD and SUBTRACT CORRESPONDING: The CORRESPONDING option can also used with the ADD and SUBTRACT verbs. The following are some of the formats of these verbs with the CORRESPON
PROGRAM TO DEMONSTRATE SORT VERB: The file for which a record having 2 fields, viz., Account Number and Name is already available. Sort the file based on the ascending order o
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
SUBTRACT VERB: The SUBTRACT verb is used to subtract one, or the sum of two or more numbers from one or more numbers and to store the result. The form of the SUBTRACT verb
NONSTANDARD CLAUSES: The various clauses explained above are as per the ANSI standard. Also, most compilers provide for additional nonstandard clauses to meet the specific nec
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