Mysql事件监控日志

    CREATE TABLE `t_event_history` (  
	  id INT UNSIGNED  NOT NULL PRIMARY KEY AUTO_INCREMENT,
      `dbname` VARCHAR(128) NOT NULL DEFAULT ‘cat‘,  
      `eventname` VARCHAR(128) NOT NULL DEFAULT ‘BakupCat‘,  
      `starttime` DATETIME NOT NULL DEFAULT ‘2000-01-01 00:00:00‘,  
      `endtime` DATETIME DEFAULT NULL,  
      `issuccess` INT(11) DEFAULT NULL,  
      `duration` INT(11) DEFAULT NULL,  
      `errormessage` VARCHAR(512) DEFAULT NULL,  
      `randno` INT(11) DEFAULT NULL
    ) ENGINE=INNODB DEFAULT CHARSET=utf8;  

DELIMITER $$

create DEFINER=`root`@`%` EVENT `Job_Backup_tb_cat` ON SCHEDULE EVERY 1 DAY STARTS ‘2016-09-07 01:00:00‘ ON COMPLETION NOT PRESERVE ENABLE DO BEGIN
   DECLARE v_starttime DATETIME DEFAULT NOW(); 
  DECLARE v_randno INTEGER DEFAULT FLOOR(RAND()*100001);  
    DECLARE r_code CHAR(5) DEFAULT ‘00000‘;  
    DECLARE r_msg TEXT;  
    DECLARE v_error INTEGER;  
  INSERT INTO `t_event_history` (`starttime`,`issuccess`,randno) VALUES(v_starttime,0,v_randno);    
     BEGIN  
        #异常处理段  
        DECLARE CONTINUE HANDLER FOR SQLEXCEPTION    
        BEGIN  
            SET  v_error = 1;  
            GET DIAGNOSTICS CONDITION 1 r_code = RETURNED_SQLSTATE , r_msg = MESSAGE_TEXT;  
        END;  
		#此处为实际调用的用户程序过程   
          CALL Backup_tb_cat();
    END;
	   UPDATE t_event_history SET endtime=NOW(),issuccess=1,duration=TIMESTAMPDIFF(SECOND,starttime,NOW()), 
  errormessage=CONCAT(‘error=‘,r_code,‘, message=‘,r_msg),randno=NULL WHERE starttime=v_starttime AND randno=v_randno;  
	END$$

DELIMITER ;