Query Deletion Problem..

Question

Hi Guru
I have process in Business like
Table Line_Item
Columns are
Line_ID                Product_ID Product_name               Status
1     111     hosted Id               Y
2      112     AutoAttend+10 (Parent)     Y
3           112     Autoattend+5 (Child)     Y
4          112     AutoAttend+10(Parent)     Y
5          112     AutoAttend+10 (Parent)     Y
6           112     Autoattend+5 (Child)     Y
Table Line_Details
Line_Detial_ID   Line_ID   Qty      Description                                           Status               
11          1     0     null                    Y
     12          2     1     null                    Y
     13          3     11     Market (Only fore Autoattend+5 (Child))     Y
     14          4     1     null                    Y
     15          5     1     null                    Y
     16          6     22     Market (Only fore Autoattend+5(Child))     Y
Now in screen there has option to delete record like *2 Types*
*1 Type*
If user delete Child row then only child will update as Status N
*2 Types*
It user delete Parent row then Child and Parent will update as Staust N
My question is
How we know what is parent and what is child?
I am thing to create new column adding ROW ID is it correct way?
Edited by: User01515 on Apr 8, 2010 11:23 AM

Answer 1

Hi,
What do you mean by delete here?
If you select delete in your front end tool you are not physically deleting the record, instead you are marking the status to 'N' so that it wont be retrieved henceforth? is it what you meant?
And you have line_id relation between both the tables and I do not see any duplicates in line_id columns, hence you can use it to map parent and child relation and you can create referential integrity constraint over it.
But, you know the business and you have to decide in which way to go.
Regards,
Prazy