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                **創建觸發器** ``` create trigger 觸發器名稱 after/before(之后/之前執行) insert/delete/update //監聽類型 on 表名 for each row begin //執行 insert b(b_name) values(new.id); //new 關鍵字 被修改后的數據。old 關鍵字原有數據 end $$; ``` **觸發器管理** 1.查看所有觸發器 ``` show trigger \G ``` 2.觸發器表 ``` desc information_schema.triggers; select * from information_schema.triggers; ```
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