topic Re: abap dictionary in Application Development and Automation Discussions

abap dictionary

Former Member — Mon, 02 Jul 2007 05:07:07 GMT

hi frds

what is value table and check table.

Re: abap dictionary

seshatalpasai_madala — Mon, 02 Jul 2007 05:08:13 GMT

Hi,

Value Table is used mainted at the Domain level.

In some cases you already know when you define a domain that all the fields referring to this domain should be checked against a certain table. This information can be stored in the domain by entering a value table.

The system proposes the value table as check table when you try to define a foreign key for this field. You can override this proposal.

Entering a value table does not implement a check. The check against the value table only takes place when a foreign key is defined.

Check table is the table aginst whihc you want to check your values so that you can have consistent data with the help of Foriegn key relation ship.

Table whose key fields are used to check the foreign key fields (see Foreign Keys). Only entries that are contained in the key fields of the check table can be contained in the foreign key fields.

The check table is used to check whether the input values are valid and for the input help (F4 help).

Regards,

Sesh

Re: abap dictionary

Former Member — Mon, 02 Jul 2007 05:09:25 GMT

Check Table is for Field level Validation .

Value table is maintained at domain level.

Value Table proposes table for check table when u are creating the foreign key relation.

I think you are clear with this.

more elaborate.

**************************

Check Table

The Check Table is the table used by system to check if a data exist or not exist.

While creating a table if you want to be sure that a field can have some values

and these are in a certain table, you can give IT this table as CHECK TABLE.

Value Table

This is maintained at Domain Level.

When ever you create a domain , you can entered allowed values. For example you go to Domain SHKZG - Debit/credit indicator.

Here only allowed values is H or S.

When ever you use this Domain, the system will forces you to enter only these values.

This is a sort of master check . .

To be maintained as a customization object.

This mean that if you want to enter values to this table you have to create a development request & transport the same.

Differences:

1)check table will carry out the check for input values for the table field being entered in any application

and value table will provide values on F4 help for that table field.

2)The check table defines the foreign keys and is part of the table definition.

The value table is part of the domain definition.

regards,

sai ramesh

Re: abap dictionary

Former Member — Mon, 02 Jul 2007 05:09:44 GMT

Hi,

Value Table

This is maintained at Domain Level.

When ever you create a domain , you can entered allowed values. For example you go to Domain SHKZG - Debit/credit indicator. Here only allowed values is H or S.

When ever you use this Domain, the system will forces you to enter only these values.

This is a sort of master check . To be maintained as a customization object. This mean that if you want to enter values to this table you have to create a development request & transport the same.

Check table

For example you have Employee master table & Employee Transaction table.

When ever an employee Transacts we need to check whether that employee exists , so we can refer to the employee master table.

This is nothing but a Parent & Child relationship . Here data can be maintained at client level , no development involved.

As per DBMS what we call foregin key table, is called as check table in SAP.

There is 1 more important Difference in Value Table and Check Table is that:

1. The contents of the check will be used as an input help(F4 Help) for a particular field on which a check table is assigned.

But the contents of Value Table are never used in Input Help.

The Heirarchy which decides from where to used the Input Help is:

1. Input help defined explicitly in ABAP Program or Dialog Module.

2. Input Help Attached to the referenced Database Table field.

3. Using the contents of Check Table as an input help if neither (1) or (2) help are there.

4. Input help from Fixed value or Value range given in Domain.

rgds,

bharat.

Re: abap dictionary

Former Member — Mon, 02 Jul 2007 05:10:25 GMT

Hi,

Value Table is the table that contains all the possible values for a field. i.e. user can select any value from the value table to enter in the field.

A Check table means that whenever a user will enter a value, the value will be checked if it is present in the Check table or not. If not present, then an error message comes saying Enter valid value.

While creating a table, a Value table can be associated as a check table for a field by specifying the value table as a check table in the Entry Help/check tab.

Regards,

Himanshu

Re: abap dictionary

Former Member — Mon, 02 Jul 2007 05:18:47 GMT