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Home -> Community -> Usenet -> c.d.o.server -> Re: mistake, error, or something else ?
On Mon, 27 Oct 2003 14:36:42 +0000 (UTC), Rob Cowell
<rjc4687_at_hotmail.com> wrote:
>Because a sub query can reference columns from tables in the main query.
>The parser would consider the column if it existed in t2. But it knows
>column c doesn't exist in t2, so assumes you mean column c in t1 which
>is also in the scope of the sub query.
Thanks Rob Received on Mon Oct 27 2003 - 08:43:50 CST
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