查看所以庫大小
select TABLE_SCHEMA, concat(truncate(sum(data_length)/1024/1024,2),' MB') as data_size,
concat(truncate(sum(index_length)/1024/1024,2),'MB') as index_size
from information_schema.tables
group by TABLE_SCHEMA
order by data_length desc;
查詢 表結構
show create tables tablename
查詢視圖結構
show create view viem.name
查詢數據庫中的存儲過程和函數
select `name` from mysql.proc where db = 'xx' and `type` = 'PROCEDURE' //存儲過程
select `name` from mysql.proc where db = 'xx' and `type` = 'FUNCTION' //函數
show procedure status; //存儲過程
show function status; //函數
查看存儲過程或函數的創建代碼
show create procedure proc_name;
show create function func_name;
查看視圖
SELECT from information_schema.VIEWS //視圖
SELECT from information_schema.TABLES //表
查看觸發器
SHOW TRIGGERS [FROM db_name] [LIKE expr]
SELECT * FROM triggers T WHERE trigger_name=”mytrigger” \G