how to delete rows from the table it reference primary key?

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hello,

we having two table PRODUCT and ORDER
ORDER reference product primary key,
when we delete order rows foreign key conflict arise,
how to make when we delete order rows corresponding PRODUCT ROW also delte?

thanks and regards
vinay

Posted 27-Oct-11 21:24pm

vinayfirstblock

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Uday P.Singh · Answer 1 · 2011-10-27T21:43:00

Solution 1

you need to use on delete cascade:

http://msdn.microsoft.com/en-us/library/aa933119%28v=sql.80%29.aspx[^]

hope it helps :)

for further queries comment here!

Posted 27-Oct-11 21:43pm

Uday P.Singh

Comments

Espen Harlinn 29-Oct-11 7:56am

5'ed - right and a bit scary, let's hope OP known what he is doing ...

Uday P.Singh 29-Oct-11 11:46am

thanks for 5! , I want to know what's the scary part here?

Amir Mahfoozi · Answer 2 · 2011-10-29T01:16:00

Solution 3

Hi Vinayfirstblock,

It's very strange that deleting a row in detail table causes an error ! if you told that when you delete a row from PRODUCT and you got some errors I wouldn't wonder but now it's very strange that you got this error. May be there is another table that has detail information about the ORDER info. Anyway try to set all the relationships with ORDER table and set their Delete Rule to Cascade.

Hope It Helps.

Posted 29-Oct-11 1:16am

Amir Mahfoozi

Comments

Espen Harlinn 29-Oct-11 7:58am

5'ed, because it will work - may lead to unintended loss of data if OP is not careful ...

Amir Mahfoozi 29-Oct-11 9:06am

Thank you Espen

Varinder Raii · Answer 3 · 2011-10-27T21:54:00

Solution 2

First delete row from table which has refrenced as foreign key.

Then delete it(row) from table which has primary key Constraint.

Posted 27-Oct-11 21:54pm

Varinder Raii

Comments

Espen Harlinn 29-Oct-11 8:00am

That's reasonable and certainly didn't deserver a downvote ...