5 Replies Latest reply: Nov 7, 2007 6:47 AM by Sravan Prakash Varanasi RSS

Check table and value table

Raja Ram
Currently Being Moderated

Hi Experts

 

         How to create the check table and value table, what is the transaction.

 

         Can you give me the standard example for these tables.

 

          please explain me on this.

 

 

Thanks in advance

 

Regards

Rajaram

  • Re: Check table and value table
    Vasu Gunda
    Currently Being Moderated

    Check Table is for Field level Validation whereas Value table is for Domain Level Validations.

    Value Table proposes table for check table.

     

    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.

     

     

    check table is validation at field level.

    value table is at domain level.

     

    Value table is defined at the domain level and is used to provide F4 help for all the fields which refer to that domain.

     

    Check table is defined against a field in SE11 if you want the values in that field to be checked against a list of valid values. For e.g. if you are using the field matnr in a table you could define MARA as the check table.

     

    Also while defining a check table SAP proposes the value table as check table by default. Referring to the previous example if you tried to define a check table for the matnr field SAP would propose MARA as the check table.

     

    1. what is the purpose / use ?

     

    -- so that the user can select values

    from some master table , for that field !!!!

     

    2. This is done by

    CHECK TABLE (foreign key concept)

    (and not value table)

     

    3. When we create a check table for a field,

    then

    some DEFAULT table is PROPOSED

     

    4. that DEFAULT table is nothing

    but PICKED up from the domain of that field,

    and shown from the value of VALUE TABLE.

    CHECK TABLE -it is a parent table.

     

    for example..

     

    i have two tables ZTAB1 and ZTAB2.

    I have one common field in both the tables,i can make any ztable to be the check table .If i make Ztab1 to be the check table then when i have to make an entry in ztab2 i will check whether ztab1 is having that value or not..

    its also field level checking..

     

    Valuetable-It is nothing but default check table.

     

    one parent can have n number of child tables.For example

     

    For ztable we have zchild1 and zchild2 tables r there.

     

    Its domain level checking..When zchild2 uses the same domain as used by zchild1 then the system automatically generates a popup saying a check table already exists would u want to maintain it.

     

    go to domain and then press the value tab u can see the valuetable at the end...

     

     

    Please refer the links below,

    d/r b/n check and value table?

    wjhat is the exct difference between check table and value table

    what is the check table and value table

    check table and value table

    Re: wjhat is the exct difference between check table and value table

    http://www.sap-img.com/abap/difference-between-a-check-table-and-a-value-table.htm

  • Re: Check table and value table
    PHANEENDRANATH KOLLI
    Currently Being Moderated

    domain become value table

     

    if u define foreign key then value table is proposed as check table

     

    regards

  • Re: Check table and value table
    ritika malhotra
    Currently Being Moderated

    hi raja,

     

     

    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.

     

     

    reward if useful..

  • Re: Check table and value table
    Currently Being Moderated

    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.

     

     

    The relational data model contains not only tables, but also relationships between tables. These relationships are defined in the ABAP/4 Dictionary by foreign keys. An important function of foreign keys is to support data integrity in the relational data model. Foreign key fields may assume only those values allowed by the check table, in other words, values occurring in the primary key of the check table.

     

    A foreign key provides a link between two tables, for eg.,T1 and T2 by including a reference in table T1 to the primary key of table T2. For this purpose, Foreign key fields assigned to the primary key fields of T2 are included in T1. Table T1, which is the one being checked, is called a foreign key table, and table T2 is called a check table. The terms dependent (foreign key) table and referenced (check) table are also used.

     

    VALUE TABLE:If the domain of the check field has a value table, this is proposed by the system as check table in the foreign field maintenance. The key fields of the value table are in this case assigned fields of the foreign key table with the same domain. These fields may assume only those values allowed by the value table.

     

    The value range of the domain can be defined by specifying value table.All table fields referring to this domain can then be checked against the corresponding field of this value table.In order the check can be executed, a foreign key must be defined for the value table.

     

    http://www.sap-img.com/abap/difference-between-a-check-table-and-a-value-table.htm

     

    http://www.geekinterview.com/question_details/16920

     

    <b>Reward i fusefull</b>

  • Re: Check table and value table
    Sravan Prakash Varanasi
    Currently Being Moderated

    Check Table

     

    Check Table is the dependent table to which the relationship is defined using the foreign keys.  The contents of the check table field are shown in the input help for the referenced field.

     

    Value Table

     

    Value Table is the table attached to a field at the domain level, where the entry to the field can be only from the value table.  They are not used in the input help. The value table is the default check table.

     

    Rewards if useful.

    Sravan.

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