Question : Foreign key on same table

Hello Experts,

I have a table in my DB containing web-pages. The Primary Key is PageID. In the same table I have PageParentPageID. I can't add a FK between Pageparent and PageID. I need to ensure that the PageParentPageID exists in the table.

Sugestions please.

Best Regards

Tomas

Answer : Foreign key on same table

> I can't add a FK between Pageparent and PageID
why not? what is the error you get?

note that before you add that constraint, all values of PageParent must  exist indeed in PageID ...