Hi Shawn, > > I have never tried any of the NATURAL joins so your results were very > interesting to me. The order in which the rows were joined provides you > with some insight about how the engine actually performs the joins (which > table is in the outer loop and which is in the inner loop). *warning* You > cannot rely on identical joins on the same tables to always return in the > same sort order. By definition, the order of any set of results is > deterministic only if you specify an ORDER BY clause as part of the query.
I know. But it only shows that these JOINs, in one precise case (LEFT and RIGHT) produce the same results if written adequately. And in fact, I just read in a help file I have that RIGHT JOIN can be used for compatibility purposes. I suspect with ANSI SQL maybe or some other one. Maybe it's gonna be deprecated someday ! But I'm putting my head on the log here as I'm not a pro. ;-) > > > Shawn Green > Database Administrator > Unimin Corporation - Spruce Pine -- MySQL General Mailing List For list archives: http://lists.mysql.com/mysql To unsubscribe: http://lists.mysql.com/[EMAIL PROTECTED]
