| Subject | exisits(select *) vs exists(select pk) |
|---|---|
| Author | Lutz Kutscher |
| Post date | 2005-08-02T22:56:15Z |
Hi,
is there a difference in execution speed whether I use
exists(select * from Tb where PK='value')
or
exists(select PK from Tb where PK='value') ?
Thanks
Lutz
is there a difference in execution speed whether I use
exists(select * from Tb where PK='value')
or
exists(select PK from Tb where PK='value') ?
Thanks
Lutz