sql中select查询中的case语句

我有一个存储过程将数据从一个表加载到另一个表

我需要根据select语句的两个值设置目标表的列值，如下例所示

insert into table table_name
( value1, value 2,value 3)

select (value 1,value2 ,
case value3 

when value1 = 'somevalue' &&* value2 = 'somevalue'

then 'x' 

else 'y'
End

from table_name.

有人能帮我找到如何根据同一个select查询中的前两个列值更新中的a列吗

我试图理解下面的示例，但未能解析

INSERT INTO HumanResources.departmentcopy  
( DepartmentID,GroupName,Name,temp)

SELECT DepartmentID,GroupName,Name,
CASE temp
WHEN  DepartmentID = 1 && Name = 'Engineering and Research'
THEN 'sucessful'
ELSE 'unsucessful'
END
FROM HumanResources.department

帮我一把

谢谢，

---

Venkat在SQL中无效。使用

和

附加条件

INSERT INTO HumanResources.departmentcopy( DepartmentID,GroupName,Name,temp)
    SELECT  DepartmentID,
            GroupName,
            Name, 
            CASE
                WHEN DepartmentID = 1 AND Name = 'Engineering and Research' THEN 'sucessful' 
                ELSE 'unsucessful' 
                END 
            FROM HumanResources.department

你非常接近：

INSERT INTO HumanResources.departmentcopy(DepartmentID, GroupName, Name, temp)
SELECT  DepartmentID,
        GroupName,
        Name,
        CASE WHEN DepartmentID = 1 AND Name = 'Engineering and Research'
        THEN 'sucessful' ELSE 'unsucessful' END
FROM HumanResources.department

---

这仍然是错误的，您需要使用

CASE WHEN

，而不是

CASE temp WHEN

@Lamak谢谢。格式化后，我不小心把它忘在了里面。已编辑。@lamak:

CASE temp WHEN

是可能的，但是您需要从

WHEN

部分中删除列名：@a_horse_with_no_name我知道

CASE WHEN..

是可能的，但是对于这个问题没有意义

INSERT INTO HumanResources.department(DepartmentID, GroupName, Name, temp)

SELECT  DepartmentID,
        GroupName,
        Name,

CASE WHEN DepartmentID = 1 AND Name = 'Engineering and Research'

THEN 'sucessful' ELSE 'unsucessful' END

FROM HumanResources.department