SQL - 隐藏我正在计算的列？

Question

我想要隐藏我正在计算的列。 它看起来像这样：

SELECT name, room, COUNT(seats) AS seats...

我只想在执行时显示name和room。有可能吗？

Answer 1

您可以使用：

，而不是使用聚合函数COUNT()

SELECT DISTINCT name, room

阅读完评论后，选择座位更多的房间：

SELECT name, room
FROM yourTable
GROUP BY name, room
ORDER BY COUNT(seats) DESC
LIMIT 1  -- This is postgres/mysql, sql server use TOP

Answer 2

在子查询中进行计数：

select name, room from (
select name, room, count(seats) as seats
from ...)

Answer 3

你需要在某个地方使用房间的数量吗？也许你想把它包含在一个声明中？

SELECT name, room
FROM TableName
GROUP BY seats,name,room
HAVING COUNT(seats) > 1;

编辑：

select top 1 name, room
group by seats,name,room
order by count(seats) desc