what is copybooks ? structure of copybook and fillers in copybook ? purpose of using copybook ?
- 2 Answers
- 34951 Views
- Tech Mahindra, I also Faced
- E-Mail Answers
Answer Posted / asad
A copybook is a section of code written in assembly
language or a high-level programming language that can be
copied (from a master) and inserted into several different
programs (or multiple places in a single program). It is
often used to define the physical layout of program data,
pieces of procedural code and prototypes.
The term “copybook” may have originated from use of COBOL
on IBM mainframe operating systems: COPY is the COBOL
keyword for this, and the master item was stored as
a “book” within a larger library of source code.[1]
Major reasons for using COPYBOOKs in assembly language or
COBOL are to:
ensure that everyone uses the same version of a data layout
definition or procedural code.
make it easier to cross reference where components are used
in a system.
make it easier to change programs when needed (only one
master copy to change).
save programmer time by not needing to code extensive data
layouts (minor, but useful).
| Is This Answer Correct ? | 22 Yes | 3 No |
Post New Answer View All Answers
What is the binary search?
In a test environment, is there a need to run a runstats?
what is the meaning, the advantages and which are the types of evaluate statement?
does anybody know about niit technologies ? how is that company ? any body working in that company ? please answer my question.I got selected in NIIT Technologies delhi.
Tandem COBOL Interview questions (on TACL,SCOBOL,ENSCRIBE,PATHWAY0
What is mainframe computer /system?
Can min or max be used with alphanumeric data?
How do you find whether any generations exist under a gdg base?
What is database descriptor?
can any one exaplin about Decision Tables in test region with good example
State the maximum value up to which volumes can be inserted to an stogroup?
How is next sentence and continue different?
When do you get -811 sqlcode and how to resolve it?
What is difference between static call and dynamic call?
What do you mean by an alias?
