[EMAIL PROTECTED] wrote:
Postgresql 8.1.4 on Redhat 9
I have a table which stores M:M relationships. I can't put foreign
keys to the parents of this table because the relationships being
stored go to several tables. This was done so that only two fields
have to be searched in order for all relationships to be found for an
item. For an oem number there might be 50 to 100 relationships and 40
different tables having to do with materials, locations, revisions,
specifications, customer, etc. that might be referenced.
Have you considered creating real cross-reference tables (aka M:M)
between all pairs of tables, and then having a view that UNIONs them
together?
This way you don't have to re-invent the foreign key to get it all working.
--
Kenneth Downs
Secure Data Software, Inc.
www.secdat.com / www.andromeda-project.org
Office: 631-689-7200 Cell: 631-379-0010
::Think you may have a problem with programming? Ask yourself this
::question: do you worry about how to throw away a garbage can?
