为什么这个tsql查询没有';你不能选择它想要什么?
我想获得某些客户的小时统计数据,如果没有值,我还是要选择0 此查询仅选择统计表中存在的行,即使我已使用Calendar CTE离开联接为什么这个tsql查询没有';你不能选择它想要什么?,sql,sql-server-2005,tsql,Sql,Sql Server 2005,Tsql,我想获得某些客户的小时统计数据,如果没有值,我还是要选择0 此查询仅选择统计表中存在的行,即使我已使用Calendar CTE离开联接 谢谢,这是因为您在where子句中引用了统计表 尝试: 这是因为您在where子句中引用了统计表 尝试: declare @customerID int set @customerID=1 ;with cteDates as ( select dateadd(hh, datediff(hh, 0, getdate()), 0) as [Date] u
谢谢,这是因为您在where子句中引用了统计表 尝试:
这是因为您在where子句中引用了统计表 尝试:
declare @customerID int
set @customerID=1
;with cteDates as
(
select dateadd(hh, datediff(hh, 0, getdate()), 0) as [Date]
union all
select dateadd(hh, -1, [Date]) as [Date]
from cteDates
where [Date] > dateadd(hh, -23, getdate())
)
select
sum(coalesce(field1,0)) field1,
sum(coalesce(field2,0)) field2,
sum(coalesce(field3,0)) field3,
sum(coalesce(field4,0)) field4,
sum(coalesce(field5,0)) field5,
d.[Date]
from cteDates as d left join [Statistics] s
on d.Date=s.date
where s.customerID=@customerID and s.date>dateadd(hh,-24,getdate())
group by d.Date
declare @customerID int
set @customerID=1
;with cteDates as
(
select dateadd(hh, datediff(hh, 0, getdate()), 0) as [Date]
union all
select dateadd(hh, -1, [Date]) as [Date]
from cteDates
where [Date] > dateadd(hh, -23, getdate())
)
select
sum(coalesce(field1,0)) field1,
sum(coalesce(field2,0)) field2,
sum(coalesce(field3,0)) field3,
sum(coalesce(field4,0)) field4,
sum(coalesce(field5,0)) field5,
d.[Date]
from cteDates as d left join [Statistics] s
on d.Date=s.date
and s.customerID=@customerID and s.date>dateadd(hh,-24,getdate())
group by d.Date