SQL Server：选择字符串不包含某些值的位置

Question

我需要从Department10中选择名称不包含字符串“LA”的员工。

Select *
From EMP
Where Cod_Dept = 10 

Answer 1

Select *
From EMP
Where Cod_Dept = 10 
And Name Not Like '%LA%'

Answer 2

以下是使用CHARINDEX()的另一个选项：

SELECT *
FROM EMP
WHERE Cod_Dept = 10
AND CHARINDEX('LA' , Name , 0) = 0;

如果您有Null值，并且您也希望将其返回：

SELECT *
FROM EMP
WHERE Cod_Dept = 10
AND (CHARINDEX('LA' , Name , 0) = 0) OR (CHARINDEX('LA' , Name , 0) Is Null);

<强> Demo