修改資料庫字符集
alter database owl default character set utf8;
修改表字符集
alter table t_app character set utf8;
修改單個欄位字符集
alter table t_app modify admin_login_name VARCHAR(50) character set utf8;
修改表所有列字符集和預設字符集
alter table t_app convert to character set utf8;
從information_schema查所有列字符集
select table_schema,table_name,table_type,engine,table_rows,table_collation from tables;
查看錶字符集
SHOW TABLE STATUS FROM owl WHERE NAME='t_user_oper_log';
show create table t_user_oper_log;
檢視有所欄位字符集
show full columns from t_app;

檢視資料庫所有表引擎
show table status from owl;

顯示單個表儲存引擎
show create table t_user_oper_log;
show table status from owl where name='t_user_oper_log'\G;

修改表引擎
alter table t_user_oper_log engine=myisam;