我在想如何在MSSQL中查询。我想查询的是每位员工提交了多少张罚单(在数据库中,引用是
submitter_id
在dbo.Tickets表中)在该列中是关联编号。我有另一个名为dbo的表
id
它将匹配
提交者id
从售票台。我正在尝试计算如何创建一个计数,以查看在特定日期范围内提交了多少票(显示用户
name
还有伯爵)。如果有任何帮助,我们将不胜感激。(我不知道该怎么做计数部分)
SELECT Tickets.submitter_id, Users.Name, Tickets.created_at
FROM Tickets
INNER JOIN Users ON Tickets.submitter_id=Users.id;
也尝试过:
select
u.Id,
u.Name,
t.created_at,
t.submitter_id,
COUNT(*) as numberOfTickets
from Users as u
join Tickets as t on t.submitter_id = u.Id
group by u.Id, u.Name, t.submitter_id
where t.created_at between '2017/11/01' and '2018/08/23'