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FD Entry for variable-length Records:
The RECORDS CONTAINS and BLOCK CONTAINS clause are quite dissimilar in the case of files with variable- length records. The syntax of these two clauses is as shown below:
RESERVE clause: This clause indicates the number of buffers to be used for the file. Integer-1 specifies this number. ORGANIZATION/ACCESS clause: These two clause
GO TO, STOP RUN: The GO TO verb is used to completely transfer the control to elsewhere in the program. Its form is as shown below: GO TO procedure-name As a result o
PROGRAM FOR SCREEN SECTION WITH FILES: identification division. program- id. environment division. input-output section. file-control. select
Rules of read statements: The next record is identified according to the rules as shown below: (i) Whenever the READ NEXT statement is the initial statement to be executed
File Activity: The file activity is a measure of the proportion of records processed during an update run. Therefore we define the activity ration as shown below. Activi
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
INPUT AND OUTPUT PROCEDURE IN SORT STATEMENT: The common format of the SORT statement can write as shown below: The format of the RELEASE statement is as shown be
PROCEDURE DIVISION statements for the indexed files: All the statements which are available for a relative file are also available for an indexed file. READ STTATEMENT :
Program for Sequential File Creation & Rewriting We have to write a program to create a Length file with just two fields: l (Length) and l-c (Length-Code). Add a few records.
/ (Slash Insertion): The edit character slash (/) also termed as virgule or stroke, may appear anyplace in the picture. When used, it will be inserted. More than one slash can
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