I have a table that consists of 3 columns.
vendor_key
mfg_key
preferred (boolean)
The idea is that a given vendor is the vendor we want to use for each
manufacturer for a given project.
I need to constrain such that only on row of mfg, vendor and project can
be set to TRUE.
I would be interested in seeing other peoples approaches on this, also.
Any thoughts?
--
"They that would give up essential liberty for temporary safety deserve
neither liberty nor safety."
-- Benjamin Franklin
