On 21/03/2010, at 12:23 PM, richard terry wrote:
> I wondered if when creating a new view from multiple tables, and then also
> joining to some fields of an existing view, if one pays much of a speed
> penalty when the data is retrieved, as opposed to just completely using all
> tables.
It is possible to measure the time of performance. In one way I know, you
could put the sql select call in a script for each of the two
situations and on a unix-like platform call for timings with
time sh situation0.sh
time sh situation1.sh
Best wishes.
Van Ly
van_ly@ovi.com
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