Subject | Re: [firebird-support] About conditions in SQL query. |
---|---|
Author | Martijn Tonies |
Post date | 2006-02-13T16:22:38Z |
> > I disagree, the order does matter. If there is no index, then the orderHowever, it does raise a question -- what happens with the
> > matters a lot.
> > I don't know enough about FB optimizer, in Oracle, the order is taken in
> > account
> > by the optimizer...
>
> That's what's called syntactic optimization and most serious database
> developers consider it childish. The goal of a relational database is
> to reduce the need for the application to understand the mechanics of
> data storage and retrieval.
Firebird optimizer if there's a bunch of columns in the WHERE
clause and none of them have indices.
:-)
Martijn Tonies
Database Workbench - development tool for Firebird and more!
Upscene Productions
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