多选一选

Question

I'm trying to put some data together for a High Charts Bar chart using ASP.NET. Basically, i have three users who i need to track when they have logged into the system. the variants to be used are:

1) Today 2) This Week 3) Last Week 4) Last Month

So, i've created individual tsql scripts for today and and last week, but i'm now a little stuck on how to combine the two statemets, which will eventually be four.

SELECT Count(*) as CountToday from hitsTable WHERE Convert(date,hitDate) =  
Convert(date,GETDATE()) Group by UserId

SELECT count(*) as CountLatWeek from hitTable 
where hitDate between (DATEADD(week, DATEDIFF (week,0,GETDATE()),-1)) 
AND getDate() Group by UserId

Searhing on google, leads me to nested select statements, which all seem to form dependacies with the two statements. However, what i need to do is produce a table of results like this:

EDIT

I've set up a SQL Fiddle, so we can test out the examples

http://www.sqlfiddle.com/#!6/a21ec

the fiddle has tsql for today and tsql for last week (which may need some tweaking)

Answer 1

Select Distinct
  UserId
, ( Select Count(*) as CountToday from hitsTable h2
    Where h2.UserId = h1.UserId 
      And Convert(date,hitDate) = Convert(date,GETDATE())
  ) As CountToday
, ( Select count(*) as CountLatWeek from hitsTable h2
    Where h2.UserId = h1.UserId 
      And hitDate Between DATEADD(dd, -(DATEPART(dw, GetDate())-1)-7, GetDate())
                      And DATEADD(dd, 7-(DATEPART(dw, GetDate()))-7, GetDate()) 
  ) As CountLastWeek
FROM hitsTable h1

Answer 2

Try this query

select 
   id,
   sum(case when Convert(date,hitDate) = Convert(date,GETDATE()) then 1 else 0 end) as as CountToday,
   sum(hitDate between (DATEADD(week, DATEDIFF (week,0,GETDATE()),-1)) AND getDate() then 1 else 0 end)  as CountLatWeek,
   ......  -- Add more condition       
from 
   hitsTable 
group by 
   UserId

Edit

select 
  userid, 
  sum(case when Convert(date,hitDate) =  
Convert(date,GETDATE()) then 1 else 0 end) as cnt

from 
hitstable
group by userid

FIDDLE

| USERID | CNT |
|--------|-----|
|  User1 |   3 |
|  User2 |   0 |

Answer 3

Here's another alternative based on @Avinash comment on the question.

Select 
  UserId
, CountTodayTable.CountToday
, CountLatWeekTable.CountLatWeek
, ...
FROM hitsTable h1
Inner Join 
( Select Count(*) as CountToday from hitsTable h2
  Where h2.UserId = h1.UserId 
    And Convert(date,hitDate) = Convert(date,GETDATE())
) CountTodayTable 
  On CountTodayTable.UserId = h1.UserId
Inner Join 
( Select count(*) as CountLatWeek from hitTable h2
  Where h2.UserId = h1.UserId 
    And hitDate between (DATEADD(week, DATEDIFF (week,0,GETDATE()),-1)) And getDate()
) CountLatWeekTable
  On CountLatWeekTable.UserId = h1.UserId
...