what are value table and check table ?and what are the
difference between them?

Answer Posted / sai krrishna

Check Table: The ABAP Dictionary allows you to define
relationships between tables using foreign keys . A
dependent table is called a foreign key table, and the
referenced table is called the check table. Each key field
of the check table corresponds to a field in the foreign
key table. These fields are called foreign key fields. One
of the foreign key fields is designated as the check field
for checking the validity of values. The key fields of the
check table can serve as input help for the check field.


Value Table: Prior to Release 4.0, it was possible to use
the value table of a domain to provide input help. This is
no longer possible, primarily because unexpected results
could occur if the value table had more than one key field.
It was not possible to restrict the other key fields, which
meant that the environment of the field was not considered,
as is normal with check tables.
In cases where this kind of value help was appropriate, you
can reconstruct it by creating a search help for the data
elements that use the domain in question, and using the
value table as the selection method.

Check table will be at field level checking.

Value table will be at domain level checking ex: scarr
table is check table for carrid.

Is This Answer Correct ?    0 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

How can an internal table with header line and one without header line bedistinguished when passed to a subroutine?

644


Explain what is an rdbms?

575


A subroutine can contain nested form and endform blocks. State true or false. : abap modularization

780


What are pooled tables? : abap data dictionary

669


What is the difference between Check and Continue?

657






Explain different types of locks?

573


Can a transparent table exist in data dictionary but not in the data base physically? : sap abap data dictionary

618


Explain the difference between function group and function module?

573


What are the differences between table and structure in data dictionary?

602


Describe the difference between macro and subroutine?

638


What is the difference b/t Session method and call transaction method ??

5262


Is a logical database a requirement/must to write an abap/4 query?

590


What is the function of the transport system and workbench organizer?

673


What are the data types of the external layer?

586


What is lock objects? : sap abap data dictionary

616