i read Pro Drupal Development book , i see

Since Drupal still uses the LOCK TABLE command with InnoDB tables, be sure to disable autocommit
mode within MySQL, or MySQL and InnoDB will both take on table locks

i am modify my.ini file. insert " init_connect = ' SET AUTOCOMMIT = 0 ' " ,
but, i can't login my drupal site , why? like 'select' is good ,but insert,set,delete is incorrect .
i from china .sorry just a lot english , somebody help me? thanks