I made a mistake in the queries:
They should be
update T set t1 = b.aa FROM (select COUNT(1) as aa FROM D WHERE D.da =
1) as b where tkey = <value>;
update T set t2 = b.aa FROM (select COUNT(1) as aa FROM D WHERE D.da =
2) as b where tkey = <value>;
...
update T set t10 = b.aa FROM (select COUNT(1) as aa FROM D WHERE D.da =
10) as b where tkey = <value>;
Thanks
Wei
On 03/17/2009 05:43 PM, Wei Weng wrote:
Hi all.
I have the following scenario:
A table T (int t1; int t2; ... int t10; int tkey)
A table D (int da; int db),
And I have the following query
update T set t1 = b.aa FROM (select COUNT(1) as aa FROM D WHERE D.da =
<count>) as b where tkey = <value>;
update T set t2 = b.aa FROM (select COUNT(1) as aa FROM D WHERE D.da =
<count>) as b where tkey = <value>;
...
update T set t10 = b.aa FROM (select COUNT(1) as aa FROM D WHERE D.da
= <count>) as b where tkey = <value>;
The queries are run on the same <value>. Is there anyway to optimize
this???
Thanks
Wei
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