Suggestion regarding running preparedstatement and batchupdate

I have to insert many rows in database therefore i use preparedstatement and for loop.I want to know if i add all the query in batch and then execute will it give better performance .Will sql statement is still in compiled form when execute in batch .Let if i add another sql statement which is different from previous sql statement in batch what the effect it has on performance.

Thanks

[400 byte] By [d17maya] at [2007-11-26 19:07:09]