Vitali Lovich wrote:
The solution I came up with is:
SELECT coalesce(
(SELECT field1 FROM tbl1 WHERE key = $key),
(SELECT field1 FROM tbl2 WHERE key = $key),
(SELECT field1 FROM tbl3 WHERE key = $key))
, field2 FROM tbl1 WHERE key = $key;
However, if
coalesce works the way I think it does,
Dan Kennedy wrote:
On Fri, 2007-05-04 at 18:22 -0400, Vitali Lovich wrote:
Multiple tables contain a primary key KEY. If Table1 contains a
matching KEY, then I want that row from Table1. Only if it isn't in
Table1, then look in Table2 if it is there. If not in Table2 go on to
Table3, etc
Hi,
I was wondering what would be the optimal way to select 1 matching row
from multiple tables. Here is the scenario.
Multiple tables contain a primary key KEY. If Table1 contains a
matching KEY, then I want that row from Table1. Only if it isn't in
Table1, then look in Table2 if it is
On Fri, 2007-05-04 at 18:22 -0400, Vitali Lovich wrote:
Hi,
I was wondering what would be the optimal way to select 1 matching row
from multiple tables. Here is the scenario.
Multiple tables contain a primary key KEY. If Table1 contains a
matching KEY, then I want that row from
