Oracle vs MySql Performance
- From: Johne_uk <edgarj@xxxxxxxxxxxxx>
- Date: Tue, 21 Aug 2007 11:58:26 -0000
Hi,
I'm looking for a few opinions on an issue we are experiencing.
My company currently uses a 3rd party application. Up until a few
weeks ago this application consisted of Java code and a database layer
that used MySql.
Performance on MySql was adequate but as our primary DB platform is
Oracle we influenced the 3rd part to introduce an Oracle version (NB:
most of the sql code is stored in a java db layer - schema just
consists of tables, views and indexes).
To facilitate this process the vendor has used almost pure ANSI Sql so
that the same sql can be used for both oracle / mysql with minimum
conversion required.
When the system was released we were surprised to find that the sql
(and hence application) ran slower on oracle than MySql (the Oracle db
server is also considerably more powerful).
At a high level does this surprise anybody on this forum. Does Oracle
struggle to execute ANSI sql compared to MySql.
The orginal code was also written for MySql and converted so that
might explain why is is running slower.
Any thoughts would be appreciated.
Tanks in advance
John
.
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