Hi,
I'm trying to select 100k records from Oracle 9i via OCI. I used
prefetch method, but it's way too slow. Can I use array fetch to
improve the performance? Does anyone know where I can find some sample
code?
Thanks a lot,
Lijia
I'm trying to select 100k records from Oracle 9i via OCI. I used
prefetch method, but it's way too slow. Can I use array fetch to
improve the performance? Does anyone know where I can find some sample
code?
Thanks a lot,
Lijia
In the OCI documentation?Quote:>Hi,
>I'm trying to select 100k records from Oracle 9i via OCI. I used
>prefetch method, but it's way too slow. Can I use array fetch to
>improve the performance? Does anyone know where I can find some sample
>code?
>Thanks a lot,
>Lijia
Regards
Sybrand Bakker, Senior Oracle DBA
To reply remove -verwijderdit from my e-mail address
> >Hi,
> >I'm trying to select 100k records from Oracle 9i via OCI. I used
> >prefetch method, but it's way too slow. Can I use array fetch to
> >improve the performance? Does anyone know where I can find some sample
> >code?
> >Thanks a lot,
> >Lijia
> In the OCI documentation?
> Regards
> Sybrand Bakker, Senior Oracle DBA
> To reply remove -verwijderdit from my e-mail address
Thanks,
Lijia
1. OCI 815/804 prefetch/array fetching performance
We have created a program to do a simple fetch of 49000 rows from the
database over net8 using TCP/IP. We compared the fetch times for the
OCI 8 Prefetch/Array fetch vs OCI7 ofen call. We find the performance
of Oracle 8 terrible (up to 50% degradation in fetch times). We tried 7
client/7 server and 7 client/8 server and 8 client/8 server. In both
instances, using 7 client is quicker than using 8 client. The 8
versions we tried were 8.1.5 and 8.0.4. The 7 version was 7.3.4. We
see the same behaviour on Solaris and NT.
Has anyone seen the sorts of performance impact we have seen or has an
idea what is causing the problem.
Thanks
Natalia
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