From: stevedtrm <stevedtrm_at_hotmail.com>
Date: Wed, 26 Dec 2007 09:10:13 -0800 (PST)
Message-ID: <4afba236-4273-4d24-b8f4-5041483d22fc_at_i12g2000prf.googlegroups.com>
What are NULLs for?
Date: Wed, 26 Dec 2007 09:10:13 -0800 (PST)
Message-ID: <4afba236-4273-4d24-b8f4-5041483d22fc_at_i12g2000prf.googlegroups.com>
What are NULLs for?
Missing information? Then surely there should just be no tuple?
To indicate that there can be no value? Why not a seperate table with a boolean value in the non-key column?
Steve B. Received on Wed Dec 26 2007 - 18:10:13 CET