Re: perl DBI question: fetchrow_array

1. fetchrow_arrayref is faster than fetchrow_array, as Alex has noted.
2. I see you've already set RowCacheSize. Anecdotal evidence ( not just mine) suggests that the diminished returns obtained by setting this >100 aren't worth it.
3. try selectall_arrayref if you're data is not really large. 'really large' depends on your environment.
4. join DBI users list, found at lists.perl.org.

Jared

Alex <axs_at_m-net.arbornet.org>
Sent by: root_at_fatcity.com
 03/06/2003 01:34 PM
 Please respond to ORACLE-L  

        To:     Multiple recipients of list ORACLE-L <ORACLE-L_at_fatcity.com>
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        Subject:        Re: perl DBI question: fetchrow_array

try using fetchrow_arrayref and see if its faster or less resource intensive.

On Thu, 6 Mar 2003, gmei wrote:

> I have some perl code which selects table data and write it into a file.
I
> have something like:
>
> -------
> $dbh->{RowCacheSize} = 10000;
> open(DATA, ">$tn") || die "Can't open file\n";
> $dat=$dbh->prepare("select id||chr(9)||FUNCTIONID||chr(9)||GENEID from
> FUNCTION2GENE");
> $dat->execute();
> while(($row) = $dat->fetchrow_array) {
> print DATA "$row\n";
> }
> close(DATA);
> -----
>
> I am trying to see if there is any way to speed up the process.
>
> So here is my question:
>
> Is "fetchrow_array" the fatest way to get the data?
>
> TIA.
>
> Guang
>
>
>
> --
> Please see the official ORACLE-L FAQ: http://www.orafaq.net
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> INET: gmei_at_incyte.com
>
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