question about the mysql prepare/execute commands

2008-09-02 Thread Jim Lyons
I have a question about the prepare/execute commands provided by mysql. I devised a benchmark, comparing updating a table using a statement-at-a-time versus using a prepare/execute pair. The table had a million rows. The statement-at-a-time file looked like: reset query cache; update company

Re: question about the mysql prepare/execute commands

2008-09-02 Thread Michael Dykman
To hazard a guess here: the mysql console typically starts up in autocommit mode. The neccesity of commiting after each statement/execution could be costing you some cycles. What is the table type of your test data? I would not expect transactions in MyISAM would give you any beifit but under

Re: question about the mysql prepare/execute commands

2008-09-02 Thread Jim Lyons
the table is myisam, so anything having to do with transactions won't have any effect. On Tue, Sep 2, 2008 at 4:54 PM, Michael Dykman [EMAIL PROTECTED] wrote: To hazard a guess here: the mysql console typically starts up in autocommit mode. The neccesity of commiting after each