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Dynamics 365 Community / Forums / Microsoft Dynamics AX (Archived) / Delete action in Table
Microsoft Dynamics AX (Archived)

Delete action in Table

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Posted on by @rp@n 56

Dear All,

I am creating 2 Tables :

1. StudentDetails (Parent)
    Field : StudentID

2. MarkDetails (Child)
   Field : StudentID
              Marks

   Relation : MarkDetails.StudentID == StudentDetails.StudentID

Then set DeleteAction in to Parent table (StudentDetails)
Table : MarkDetails
DeleteAction : Cascade OR Restricted OR Cascade + Restricted
Relation : StudentDetails

1. Cascade :

Now i am tested Cascade. When i go to delete records from parent table (StudentDetails). It's showing message "Are you want to sure delete records". If we select YES then it will delete records from Parent and Child table both selected records.

2. Restricted :

Now i am tested Restricted. When i go to delete records from parent table (StudentDetails). It's showing message "StudentDetails cannot be deleted with dependent MarkDetails exist. Delete dependent MarkDetails and try again.

3. Cascade + Restricted : 

Now i am tested Cascade + Restricted. It's showing as it is same like "Restricted" delete action.

Could you please explain me

1. What is the difference between Restricted and Cascade+Restricted delete action ?
2. Which methods are internally called in Table when we are using delete action.
3. Is there any difference between A 2009 and AX 2012 delete action? Actually i found in delete action properties, one more row added "relation" in AX 2012 and info message is different in Cascade and Cascade+Restricted in AX 2009 and AX 2012.

Please give me ans point wise.

Thanks!

Regards,

Arpan Sen


   


    

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  • Asim Saeed Profile Picture
    Asim Saeed 575 on at

    Can you please go over the below link may be this will help you

    https://amazingax.wordpress.com/2013/01/13/microsoft-dynamics-ax-2012example-of-cascaderestricted-and-cascade-restricted-delete-action-property-for-a-table-relation/

    Example of Cascade + Restricted

    Suppose we have three tables  (Person ,Customer & Order) Now Person is a parent of Customer table, and Customer is a parent of Order table having (One-To-Many) relations

    If I set a Delete action property on Person table to “CASCADE” for customer table  and If I set a  Delete Action property on a CUSTOMER table for Order table to “CASCADE +RESTRICTED”.

    So if I delete a record from Customer table then It will first check the record in the child table(order table) and if exist that warning prompt saying that first we need to delete a record from child table.

    But if I delete a record from Person table it will automatically delete a record in Customer table and all records related to customer table in Order table would also be deleted.

  • @rp@n Profile Picture
    @rp@n 56 on at

    Thanks for your reply Asim.

    I will check accordingly and let you know.

    Could you please let me know which methods are called during Delete Action from table.
    Cascade + Restricted is only working for "One-To-Many" relation right?

    Regards,

    Arpan Sen

  • @rp@n Profile Picture
    @rp@n 56 on at

    Hi Asim,

    I will check accordingly which you suggest.

    Cascade : Tables delete method is called.

    Restricted : Tables Validate delete method is called.

    Cascade + Restricted : Validate delete and delete method is called.

    I need some clarifications :

    The above mentioned methods are correct during delete action?

    Cascade + Restricted is only working for "One-To-Many" relation right?

    Could you please explain anyone on this.

    Thanks!

    -Arpan Sen

  • Verified answer
    Asim Saeed Profile Picture
    Asim Saeed 575 on at

    Let say Parent table and child table (One to many)

    1) DeleteAction : Cascade

    If we delete the record from parent , then validateDelete of parent and then delete of child will be called

    2) DeleteAction: Restricted

    If we delete the record from parent, then validateDelete of parent will be called and message will be prompt,

    3) DeleteAction: Cascade +Restricted

    This will work same as 2), if we have two tables

  • @rp@n Profile Picture
    @rp@n 56 on at

    Thanks Asim

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