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Hello,
I’ve got problems:
1. When I created a table’s primary key this constraint does not implicitly
creates NOT NULL and UNIQUE constraints on the table.
2. I can not create a foreign key on composite primary key. The only way is
to split composite key on single field constraints, for example, instead of:
Constraint FK_LbrGroup_LSizes foreign key(LGroups,LbrGroup) references
LumberGroups(LGroups,LbrGroup)
I need create:
Constraint FK_LGroups_LSizes foreign key(LGroups) references
LumberGroups(LGroups),
Constraint FK_LbrGroup_LSizes foreign key(LbrGroup) references
LumberGroups(LbrGroup)
Could you explain me the reasons ?
Thank you,
Gennady
Received on Thu Mar 25 1999 - 13:21:17 CST