Dear Kind Soul, I am stuck with the following database referential integrity constraint problem.
I have two tables: things(thingid INTEGER, thing_name VARCHAR, language CHAR(5)) and thing_relations(thingid INTEGER, thing_parentid INTEGER) things hosts items in different languages, e.g.: things(1, 'car', 'en_US'); things(1, 'voiture', 'fr_FR'); things(2, 'engine', 'en_US'); things(2, 'moteur', 'fr_FR'); things(3, 'brake', 'en_US'); things(3, 'freins', 'fr_FR'); while thing_relations describes the "consists of" relationship between things, e.g.: thing_relations(2, 1); thing_relations(3, 1) as engine and brake are parts of a car but since things(thingid) is not unique hence it can't be the primary key in "things" and can't be the foreign key in "thing_relations", how can the referential integrity constraints between thing_relations(thingid) and things(thingid) be described? Or my design is not making sense? Many thanks in advance. Jerry --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "sqlalchemy" group. To post to this group, send email to sqlalchemy@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/sqlalchemy?hl=en -~----------~----~----~----~------~----~------~--~---
