Hello.
I think such kind of logic could be implemented on database layer,
because the main task for you is to keep data integrity, and this was
one of the reason of database creation. However, without triggers your
task becomes difficult. Unfortunately they're available only in MySQL
5.xx, w
Hi,
I want to buil a hierarchical database, with different kind of relations.
I have differents elements which are linked between them by different kinds
of relations.
Ex:
element 1 IS A element 72
element 22 IS PART OF element 36
I want to have a table "elements",for several reasons: I
