On Tue, Dec 21, 2004 at 18:51:22 +0300,
advanced techno medical <tekno2@link.net> wrote:
> Dear Sir/Mad
> I downloaded SQL from the website
> But I don't know how can I use it or how setup it ?
> Please advice me to learn how I use SQL and how I make it active
> Thanks and regards
> Acc/ Alaa Kamel

Have you tried reading the documentation?

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TIP 9: the planner will ignore your desire to choose an index scan if your
joining column's datatypes do not match