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我們可以借助以下查詢找到與特定表關聯的所有觸發器 –

mysql> Select * from INFORMATION_SCHEMA.TRIGGERS WHERE TRIGGER_SCHEMA = 'query'AND EVENT_OBJECT_TABLE = 'Student_info'\G
*************************** 1. row ***************************

           TRIGGER_CATALOG: def
            TRIGGER_SCHEMA: query
              TRIGGER_NAME: studentinfo_after_delete
        EVENT_MANIPULATION: DELETE
      EVENT_OBJECT_CATALOG: def
       EVENT_OBJECT_SCHEMA: query
        EVENT_OBJECT_TABLE: student_info
              ACTION_ORDER: 1
          ACTION_CONDITION: NULL
          ACTION_STATEMENT: BEGIN
DECLARE vuser varchar(30);
SELECT USER() into vuser;
INSERT INTO student_info_deleted(id,deleted_date,deleted_by) VALUES(OLD.id,SYSDATE(),vuser);
END
        ACTION_ORIENTATION: ROW
             ACTION_TIMING: AFTER
ACTION_REFERENCE_OLD_TABLE: NULL
ACTION_REFERENCE_NEW_TABLE: NULL
  ACTION_REFERENCE_OLD_ROW: OLD
  ACTION_REFERENCE_NEW_ROW: NEW
                   CREATED: 2017-11-21 14:19:34.91
                  SQL_MODE: ONLY_FULL_GROUP_BY,STRICT_TRANS_TABLES,NO_ZERO_IN_DATE,NO_ZERO_DATE,ERROR_FOR_DIVISION_BY_ZERO,NO_AUTO_CREATE_USER,NO_ENGINE_SUBSTITUTION
                   DEFINER: root@localhost
      CHARACTER_SET_CLIENT: cp850
      COLLATION_CONNECTION: cp850_general_ci
        DATABASE_COLLATION: latin1_swedish_ci

1 row in set (0.00 sec)

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上面的結果集顯示了名為“query”的數據庫中“student_info”表上的觸發器列表。

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