Label records or disk directory - file characteristics, COBOL Programming

Assignment Help:

Label Records / Disk Directory:

The most important information stored in the header label is what is termed as the file title. In the situation of magnetic-disk files the labels normally do not exist (there are lots of exceptions). As, more than one file is stored on a disk pack, the Input-Output control system also maintains a disk directory for all the files.

 


Related Discussions:- Label records or disk directory - file characteristics

Statements for sequential files , STATEMENTS FOR SEQUENTIAL FILES: A b...

STATEMENTS FOR SEQUENTIAL FILES: A basic operation on a file includes the reading and writing of its records. Whenever the file is sequential, there are three verbs for the

Cobol program, Write a COBOL IF sentence to use the values of numeric var...

Write a COBOL IF sentence to use the values of numeric variables EXAM and COURSEWORK , both assumed to be with format PIC 999 and in the range 0 to 100 and to move the value:

What are name the divisions in a cobol program, Name the divisions in a COB...

Name the divisions in a COBOL program are given below DENTIFICATION DIVISION DATA DIVISION ENVIRONMENT DIVISION PROCEDURE DIVISION.

Write statement - indexed files, WRITE STATEMENT: The records are wri...

WRITE STATEMENT: The records are written to be logical place as determined from the value of the record key. The INVALID KEY condition occurs in the cases shown below: (i)

Program for perform - thru, PROGRAM FOR PERFORM - THRU: We have to wri...

PROGRAM FOR PERFORM - THRU: We have to write a program to elaborate PERFORM ...THRU statement Identification division. Program- id.  Perfthru. Environment division.

Configuration section - cobol program, Configuration Section: This sec...

Configuration Section: This section holds an overall specification of the computer used for the purpose of the compilation and execution of the program. There are in all 3 par

Delete statement - indexed files, DELETE STATEMENT : The file should be...

DELETE STATEMENT : The file should be opened in the I-O mode. If the access is SEQUENTIAL, the INVALID KEY phrase must be specified. Rather than, the last input-output state

If statement - cobol programming, IF STATEMENT: The easiest form of th...

IF STATEMENT: The easiest form of the IF statement is  IF condition-1 statement-1 where the condition-1 may be any one from the shown below. When the condition-1

Rules for indexed tables, RULES FOR INDEXED TABLES: The rules of index...

RULES FOR INDEXED TABLES: The rules of indexing a table with an INDEXED phrase are as shown below: (1) If indexing is completed for any one level of a table, then indexing

Picture clause, Picture Clause: The picture clause explains the genera...

Picture Clause: The picture clause explains the general characteristics of an elementary data item. These characteristics are elaborated below: Class: In COBOL the

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd