on Daly" <[EMAIL PROTECTED]>
Cc:
Sent: Monday, December 12, 2005 2:45 PM
Subject: Re: NULL, OR, and indexes
In the last episode (Dec 12), Dan Nelson said:
In the last episode (Dec 12), Eamon Daly said:
> I'm sure the answer is "You're SOL", but I figured I'd
In the last episode (Dec 12), Dan Nelson said:
> In the last episode (Dec 12), Eamon Daly said:
> > I'm sure the answer is "You're SOL", but I figured I'd ask anyway. I
> > have a WHERE condition like:
> >
> > SELECT * FROM a JOIN b WHERE
> > (b1 IS NULL OR b1 = u1) AND
> > (b2 IS NULL OR b2 = u2)
In the last episode (Dec 12), Eamon Daly said:
> I'm sure the answer is "You're SOL", but I figured I'd ask anyway. I
> have a WHERE condition like:
>
> SELECT * FROM a JOIN b WHERE
> (b1 IS NULL OR b1 = u1) AND
> (b2 IS NULL OR b2 = u2) AND
> (b3 IS NULL OR b3 = u3)
>
> where b is a Very Large t
I'm sure the answer is "You're SOL", but I figured I'd ask
anyway. I have a WHERE condition like:
SELECT *
FROM a
JOIN b
WHERE
(b1 IS NULL OR b1 = u1) AND
(b2 IS NULL OR b2 = u2) AND
(b3 IS NULL OR b3 = u3)
where b is a Very Large table. I have an index on b like
(b1, b2, b3), but obviously that
