On Sat, January 26, 2008 3:17 am, Per Jessen wrote: > Richard Lynch wrote: > >> On Fri, January 25, 2008 3:35 am, Per Jessen wrote: >>> I have a website where some of the pages require several mysql >>> queries - >>> they're independent, so in principle they could easily be run in >>> parallel. Has anyone looked at doing that? >> >> If MySQL has implemented "cursors" in some new version, you have >> just >> described a "cursor"... >> >> There may be something else in MySQL to do this, mind you, but >> that's >> the easiest way I know of in other DBs... > > cursors exist in mysql too, but I don't quite see how I could use them > to run two queries concurrently? Also, these queries don't return a > lot of data.
When you create a cursor, it's like a handle to a running query in the background process, and returns immediately. Create three cursors, and you SHOULD have them running in parallel. The overhead of a cursor may be more than you save for fast queries though... Or maybe not, as a cursor should not have THAT much overhead. Only used them in PostgreSQL and SQL Server/Sybase, though, so don't know for sure about MySQl. -- Some people have a "gift" link here. Know what I want? I want you to buy a CD from some indie artist. http://cdbaby.com/from/lynch Yeah, I get a buck. So? -- PHP General Mailing List (http://www.php.net/) To unsubscribe, visit: http://www.php.net/unsub.php
