Thank you for make my DDL brevitier!

> Now, as I understand, you have ended up with several records in
> OBJECT_BAL without a parent record in OBJECT_LIST, thus violating
> FK_OBJECT_BAL_1. Is this correct?

Yes, it is correct!
My db have crashed many times! But one time it crashed by this foreign
key constraint and another time it crashed by another foreign key
constraint.

> I'm hoping one of the experts will join in, but in the meantime I have
> one question for you: Is FK_OBJECT_BAL_1 always present/active? Or

is it

> perhaps temporarily removed at certain operations?

When I import data from outside (such as xls file) this contraint is
inactive. But I always check after importing, the db is at good status.