Answer Posted / jamil ahmad
In a layman terms, a control variable (#CV (C) does only
two but very useful functions.
1. Do you want the user to overlay the field with new value
or you want to protect the field, for example, if an Order#
is a system generated number, you would want that to be
modified
2. If the fields not protected, was it a modified?
For example, if the SSN was modified then validate it
otherwise take no actions against the field. Juts my 2 cents
| Is This Answer Correct ? | 2 Yes | 0 No |
Post New Answer View All Answers
Explain how to receive data passed through jcl parm parameter in a natural program? How data definition is defined in the program?
What happens when you issue a escape routine in a program? Will there be any compilation /run time erro?
What is the difference between read(1) and read work file once?
Tell me what type of files we can process thru file-aid?
How to receive data passed through jcl parm parameter in a natural program? How data definition is defined in the program?
How can we see the copy book length using file-aid?
How to receive data passed through jcl parm parameter in a natural program?
What is a hyperdescriptor?
Explain the difference between external subroutine and subprogram?
What is the difference between escape(top or bottom) and escape immediate(top or bottom?
What is a hyperdescriptor? How does it work?
How to create 1 ddm that fetches 3 adabas files simultaneously?
Tell me can we update with histogram?
Explain how to move cursor to a particular field when position is not known?
What is the quality process in development?
