Post the table, the query, and the explain output, and then we can help you. On Feb 19, 2008 7:38 PM, hewei <heweiweihe@xxxxxxxxx> wrote: > Hi,Every body; > I have a table contains 100,000 rows, and has a primary key(int). > Now ,I need to execute sql command like "update .......... where id=*"(id > is primary key). > I expect execute 1200-1600 sqlcommands per second(1200-1600/s). > In test,when the id increase by degrees in sqlcommands, then I can reach > the speed(1600/s); > But in fact , the id in sqlcommands is out of rule, then the speed is > very slow, just 100/s. > what can i do? can you help me ? > ---------------------------(end of broadcast)--------------------------- TIP 5: don't forget to increase your free space map settings
