无效列名“*******”

Question

格式此查询确定，在调试时我看到价值更新，但只有告诉我这个消息{"Invalid column name 'Mohannad' "}，请帮我家伙

UPDATE Employee 
SET Name =Mohannad 
, Age=22 
, GenderID =1 
, CountryID=1 
, Mobile=8765 
FROM Employee 
    INNER JOIN Country ON Employee.CountryID = Country.CountryID 
    INNER JOIN Gender ON Employee.GenderID = Gender.GenderID 
WHERE EmployeeID=1 ; 

SELECT Employee.EmployeeID, Employee.Name, Employee.Age, Employee.GenderID, Gender.GenderName, Employee.CountryID, Country.CountryName, Employee.Mobile 
FROM Employee 
    INNER JOIN Country ON Employee.CountryID = Country.CountryID 
    INNER JOIN Gender ON Employee.GenderID = Gender.GenderID 

Answer 1

你需要Mohannad周围的报价：

SET Name='Mohannad' 

如果没有引号，数据库引擎会推测它是列的名称。

如果您在程序中生成此查询，则应该使用预准备语句，而不是仅在名称周围加引号以避免错误和注入。

Answer 2

Monhannad应该是在引号

UPDATE Employee 
SET Name = 'Mohannad', Age=22, GenderID =1, CountryID=1, Mobile=8765 
FROM Employee 
    INNER JOIN Country ON Employee.CountryID = Country.CountryID 
    INNER JOIN Gender ON Employee.GenderID = Gender.GenderID 
WHERE EmployeeID=1 ; 

Answer 3

与此代码

SET Name='Mohannad'