On Wed, Jun 2, 2010 at 10:28 AM, Lin Chun wrote:
> *don't know it very clear, but i think is the problem of seems it
> take full scaning*
Yes, it has no indexes so it isn't good for very large subqueries.
You should create them as temporary tables instead and give them
indexes.
- Perrin
--
My
*hi*
*
*
*i have a reporting query which have 2 long sub-query*
SELECT r1.code_centre, r1.libelle_centre, r1.id_equipe, r1.equipe,
r1.id_file_attente,
r1.libelle_file_attente,r1.id_date, r1.tranche,
r1.id_granularite_de_periode,r1.granularite,
r1.ContactsTraites, r1.ContactsenParcage, r1.Conta
