CREATE TABLE Player
(playerID CHAR(3) ,
name CHAR(36),
year NUMBER,
team CHAR(50),
totalNoms NUMBER,
awardsWon NUMBER)
如何创建一个从数据库中的两列（球队和球员人数）中进行选择的查询？
问问题
77 次
3 回答
2
取决于你想要你可以做什么
select team, count(PlayerID) as NoOfPlayers
from Player
where team = 'Lackers'
或者
select team, count(PlayerID) as NoOfPlayers
from Player
group by team
于 2012-04-25T11:20:48.070 回答
1
SELECT team,COUNT(playerID) As NoOfPlayers from Player group by team
于 2012-04-25T11:26:57.467 回答
0
Select distinct p.team, (
Select count(*) from Player where team=p.team
)
from Player p
输出将是（例如）：
- 团队 1 25
- 团队 2 34
- 团队 3 11
于 2012-04-25T11:24:05.433 回答