?????????????????????

??????????sql?????Щ?????????????????????????????????????
????MySQL
??????????
????mysql?????????????????????????洢??????????
mysql.User??mysql.db??mysql.Host??mysql.table_priv??mysql.column_priv
?????????????????????????????????????У?????????????????????????????
????????????????????reload???
FLUSH PRIVILEGES
??????????????飬mysql.user?е?user host pass ??????Σ?????????κ???????????????host???ó?%
???????????????mysql????????μ????????????????mysql.user?ж??????????????
???????й????????????δ??????Щ??????Щ???????????????????
????file_priv ????????mysql??д?????????
????grant_priv ???????????????е??????????????
????process_priv ????????????SHOW PROCESSLIST???????????????????kill????????????????????
????super_priv???????????set???????????????
Select_priv
Insert_priv
Update_priv
Delete_priv
Create_priv
Drop_priv
Reload_priv
Shutdown_priv
Process_priv
File_priv
Grant_priv
References_priv
Index_priv
Alter_priv
Show_db_priv
Super_priv
Create_tmp_table_priv
Lock_tables_priv
Execute_priv
Repl_slave_priv
Repl_client_priv
Create_view_priv
Show_view_priv
Create_routine_priv
Alter_routine_priv
Create_user_priv