Question

您好这个TRIGGER语句中是否有任何错误。当我尝试在phpAdmin中运行它时，它会给出错误“＃1064 - 您的SQL语法中有错误;请查看与您的MySQL服务器版本对应的手册，以获得正确的语法在“SELECT Count（*）into SIM_CCode_Count”附近使用。我不知道这有什么问题。请帮助我

这是我的触发陈述

CREATE TRIGGER Is_CountryCode_There After INSERT on mr_details FOR EACH ROW

BEGIN 

DECLARE SIM_CCode_Count INTEGER;
DECLARE NET_CCode_Count INTEGER;


SELECT Count(*) into SIM_CCode_Count FROM Country_Main where CountryCode=NEW.SimCntISO;

IF SIM_CCode_Count=0 THEN
INSERT INTO Country_Main(CountryCode,CountryName) Values(NEW.SIMCntISO,"Unknown");
END IF

If NEW.SimCntISO<>NEW.NetCntISO then

SELECT Count(*) into NET_CCode_Count FROM Country_Main
where CountryCode=NEW.NetCntISO

IF NET_CCode_Count=0 THEN
INSERT INTO Country_Main(CountryCode,CountryName) Values(NEW.NETCntISO,"Unknown");
END IF


END IF
END

Answer 1

如果没有正确解释您的要求和表格以及您希望触发器做什么，很难说出触发器中是否存在任何问题。但据我所知，有一些小的修正需要做.. 试试此规范，并详细了解您的要求..

CREATE TRIGGER Is_CountryCode_There After INSERT on mr_details FOR EACH ROW
BEGIN
DECLARE SIM_CCode_Count INTEGER;
DECLARE NET_CCode_Count INTEGER;

SELECT Count(*) into SIM_CCode_Count FROM Country_Main where CountryCode=NEW.SimCntISO;

IF SIM_CCode_Count=0 THEN
INSERT INTO Country_Main(CountryCode,CountryName) Values(NEW.SIMCntISO,"Unknown");
END IF;

If (NEW.SimCntISO<>NEW.NetCntISO) then
SELECT Count(*) into NET_CCode_Count FROM Country_Main
where CountryCode=NEW.NetCntISO;

IF NET_CCode_Count=0 THEN
INSERT INTO Country_Main(CountryCode,CountryName) Values(NEW.NETCntISO,"Unknown");
END IF;


End IF;
END;

Answer 2

您必须在触发器语句之前声明一个mysql语句分隔符：

DELIMITER |

CREATE TRIGGER ...
    (your code)
END|

DELIMITER ;

否则MySQL会将此语句中的;解释为语句提交并立即执行代码。将分隔符更改为其他字符后，您可以安全地在触发器声明中使用分号。

见这里：http://dev.mysql.com/doc/refman/5.0/en/create-procedure.html

phpmyAdmin中的MySQL Trigger ERROR

2 个答案: