MySQL: Inserting data based on insert_id, in a single query?

[eluser]mddd[/eluser]
@resolv_25:
Thanks. I know how 'insert_id' works. The trouble is, I am doing large imports on a regular basis. This puts a strain on the database. So I am optimizing the number of calls I have to do. That is why I was looking to combine as many queries as I can.

@mattpointblank:
Thanks. Combining inserts does limit the number of queries and that is a very good thing.

@all:
I haven't been able to find a way to insert data into two tables from a single query while. Finally, I made a system to generate a unique id for every record in advance, and use that id in both tables. Eliminating the need to know the insert_id from the database at all. This (not checking the id), combined with putting 10 or 20 rows in each insert made the whole import about 20 times faster.