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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 file which has been assigned to the PRINTER. The present position of the stationery will be advanced by 3 lines, that is, there will be 2 blank lines and the current record will be written on the third line.
(ii) WRITE TRANS-RECORD BEFORE ADVANCING 3 LINES.
Primary the record will be written and then the page will be advanced by the 3 lines.
PROGRAM FOR PERFORM - THRU: We have to write a program to elaborate PERFORM ...THRU statement Identification division. Program- id. Perfthru. Environment division.
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
we have input file ,record layout is EMP ID (6 char) , EMP NAME (20 char), Designation (3 char),Salary (5 digit) Base Branch (10char) Grade (3 Alphanumeric). This is the input file
Example of Open statement: Illustration: The OPEN INPUT TRANSACTION, OLD-MASTER OUTPUT NEW-MASTER. The illustration represents that there are two input files named the
SPECIAL-NAMES: This paragraph is used to associate some hardware names to the user-specified mnemonic names. This paragraph is elective in all compilers. The format of this pa
, (Comma) : A comma, whenever used in a picture, is considered as an insertion character and inserted wherever it become visible. There can be more than one comma in the pictu
MULTI-DIMENSIONAL TABLES: The type of table which has been considered above is known as one-dimensional table. Whenever a table is such that each of its elements in turn is a
FILE STATUS clause: This clause has been involved in the above syntax for completeness. The ORGANIZATION, REVERSE, ACCESS and STATUS clause can be specified in any order.
RELATIONAL CONDITION: We know that a relational condition specifies a comparison between two operands and has the form. Operand-1 relational-operator operand-2
File volatility: File volatility associates to the number of times the updating of records are needed during some time period. File interrogation: Some files hold re
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