Re: Performance of request of type WHERE ... IN ( ... )

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От
Achilleus Mantzios
Тема
Re: Performance of request of type WHERE ... IN ( ... )
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Pine.LNX.4.44.0301151259100.1876-100000@matrix.gatewaynet.com
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Performance of request of type WHERE ... IN ( ... ) "Th Templ" <templ_th@hotmail.com>
Re: Performance of request of type WHERE ... IN ( ... ) Achilleus Mantzios <achill@matrix.gatewaynet.com>
Re: Performance of request of type WHERE ... IN ( ... ) "Josh Berkus" <josh@agliodbs.com>
On Wed, 15 Jan 2003, Th Templ wrote:

> Hello,
>
> I have performance problem of an request of type ... WHERE ... IN ( ... ).
> How to improve performance of this type of request when a group of id in the
> 'in' is important.

Try WHERE ... EXISTS (...).


> Thanks for your answers.
> Templth
>
>
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==================================================================
Achilleus Mantzios
S/W Engineer
IT dept
Dynacom Tankers Mngmt
Nikis 4, Glyfada
Athens 16610
Greece
tel:    +30-10-8981112
fax:    +30-10-8981877
email:  achill@matrix.gatewaynet.com       mantzios@softlab.ece.ntua.gr


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