在sql中的select查询中的case语句

Question

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.

任何人可以帮助我找出如何根据同一选择查询中的前两个列值更新a列？

我已尝试使用下面的示例示例来理解,但它无法解析.

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

帮助我!!

谢谢,Venkat

Answer 1

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