On 11/27/06, Isaac Raway <[EMAIL PROTECTED]> wrote:
I'd like to strongly second this. Avoid NULL columns, even at apparent cost.
Having a valid default value is always better. If a design appears to
require NULL values, then the design is likely critically flawed.

Using NULLS is NOT a critical design flaw.

NULL means something specific and if you use it correctly it works perfectly.
NULL indicates when nothing has been entered into a field.
Not entering anything, and entering spaces or a default value, are different.
If you need that information then it's very useful. If you don't then
don't use it
by assigning default values.

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