Re: SET NULL / SET NOT NULL

> The SQL spec will not help us here, since it doesn't define such a
> capability AFAICT. We might do worse than to look at Or*cle's
> implementation, which appears to involve a MODIFY keyword.
>
> I find this in the Or*cle 8i documentation examples:
>
> The following statement alters the EMP table and defines and
> enables a NOT NULL constraint on the SAL column:
>
> ALTER TABLE emp
> MODIFY (sal NUMBER CONSTRAINT nn_sal NOT NULL);
>
> The docs are opaque enough that I can't actually figure out a BNF
> definition for ALTER TABLE MODIFY, and I don't have a working
> installation to experiment against. Can any Or*cle users here
> enlighten us?

I've already posted the Oracle and MSSQL spec to the list here - just check
one of my earlier posts with this subject...

A good place to ask questions is comp.databases.oracle.misc

Chris