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

Blank insertion and zero insertion, B (Blank Insertion) : The occurren...

B (Blank Insertion) : The occurrence of a B anyplace in the picture will insert a space character in the edited data. There can be more than one B in the picture. Examples:

Renames clause, RENAMES CLAUSE: At times re-grouping of an elementary ...

RENAMES CLAUSE: At times re-grouping of an elementary data items in a record may be essential so that they can belong to the original as well as to the latest group. This is o

Literals - cobol program, Literals: The actual values can too appear i...

Literals: The actual values can too appear in a program. These values are termed as literals. For illustration, the statement MOVE 0 TO TOTAL indicates that the value zero wil

Example of special-names - configuration section, Example of Special-names:...

Example of Special-names: Consider the illustration: Let the SPECIAL-NAMES paragraph be as shown: SPECIAL-NAMES. CHANNEL 1 IS PAGE-TOP. The Channel is related with the t

Fd entry for variable-length records, FD Entry for variable-length Records:...

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 the

IMS, Can u please let me know how can i use SSA''s in IMS while fetching se...

Can u please let me know how can i use SSA''s in IMS while fetching segments. Thanks, Rajesh

Rounded option, ROUNDED OPTION: Let us consider the DATA DIVISION entr...

ROUNDED OPTION: Let us consider the DATA DIVISION entries which are as shown below: Now, subsequent to the execution of the statement ADD A B GIVING C, the C will hold

Record description for the variable-length records, Record Description for ...

Record Description for the Variable-length Records: When the variable- length records consists of records of various lengths, each record type is to be explained at level 01 f

Rules of move verb, RULES OF MOVE VERB:  The Data movement is managed ...

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

Example of sign condition , Example of Sign condition: The illustratio...

Example of Sign condition: The illustration below describes the use of the sign condition. Illustration:     77  BALANCE  PIC  S9 (6) V99.       .       .     I

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