sql判断并改变字段的值

版权声明：科比龙篮 https://blog.csdn.net/qq_36514588/article/details/83308143

SELECT
id,
CASE name
WHEN'Test1' THEN 1  #判断name的值是否等于Test1,等于则改变查询出来的值为1
ELSE 0    
END AS isexist,  #字段重命名
qty,createdate,createby
FROM
stu