[QGIS-Developer] Slow QGIS performance with Oracle datasets

Jürgen E. Fischer jef at norbit.de
Fri May 19 02:31:08 PDT 2017

Hi Niels,

On Wed, 17. May 2017 at 12:13:34 +0000, Niels Kjær wrote:
> Using QGIS we find that retrieving, rendering and querying/filtering (spatial
> vector)data from our Oracle databases takes a lot longer than using PostGIS
> databases.
> Our DBAs have investigated the matter and finds the performance to be 10-50
> times slower in some cases.

Unfortunately there's not much information to work with here.

Can you share what you actually compared?


Jürgen E. Fischer           norBIT GmbH             Tel. +49-4931-918175-31
Dipl.-Inf. (FH)             Rheinstraße 13          Fax. +49-4931-918175-50
Software Engineer           D-26506 Norden             http://www.norbit.de
QGIS release manager (PSC)  Germany                    IRC: jef on FreeNode
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