Join a table to itself

Question

this is one on my database tables template.

Id int PK
Title nvarchar(10) unique
ParentId int 

This is my question.Is there a problem if i creat

Answer 1

I have seen this done without errors before on a table for menu hierarchy you shouldnt have any issues providing your insert / update / delete queries are well written.

For instance when you insert check a parent id exists, when you delete check you delete all children too if this action is appropriate or do not allow deletion of items that have children.