Question

SELECT *
FROM Service
WHERE cusId='$cusId'
  AND serviceType IN (1,2)
ORDER BY date DESC LIMIT 2

我想拥有serviceType为1和2的服务的最后记录，当我在IN查询中使用此脚本时，我获得了2行服务，其serviceType为1，但我希望有两条记录， 1和2作为serviceTypes，对不起我的英文

Answer 1

(select * from Service 
where cusId='$cusId' 
and serviceType = 1 
order by date desc limit 1)

UNION

(select * from Service 
where cusId='$cusId' 
and serviceType = 2 
order by date desc limit 1)

Answer 2

你可以尝试结合吗？

SELECT top 1 * FROM Service where cusId='$cusId' and serviceType = 1 order by date DESC
UNION
SELECT top 1 * FROM Service where cusId='$cusId' and serviceType = 2 order by date DESC

Answer 3

SELECT id,MAX(date) FROM Service 
where cusId='$cusId' 
and serviceType = 1 
 limit 1

UNION All

SELECT id,MAX(date) FROM Service 
where cusId='$cusId' 
and serviceType = 2 
limit 1

如何获取具有多个值的所有行

3 个答案: