Question

Need a query help. I have a table where data is represented like this

userid   TransactionTime           FunctionKey
1018     2011-07-27 09:14:38.000   0
1018     2011-07-27 09:17:11.000   99
1018     2011-07-27 09:38:22.000   0
1018     2011-07-27 10:34:50.000   99

I need a query which will return a dataset like this:

userid  Intime                  Outtime
1018    2011-07-27 09:14:38.000 2011-07-27 09:17:11.000
1018    2011-07-27 09:38:22.000 2011-07-27 10:34:50.000 

Please Help..

Answer 1

declare @T table (userid int, TransactionTime datetime, FunctionKey int)
insert into @T values
(1018,     '2011-07-27 09:14:38.000',   0),
(1018,     '2011-07-27 09:17:11.000',   99),
(1018,     '2011-07-27 09:38:22.000',   0),
(1018,     '2011-07-27 10:34:50.000',   99),
(1019,     '2011-07-27 09:14:38.000',   0),
(1019,     '2011-07-27 09:17:11.000',   0),
(1019,     '2011-07-27 09:38:22.000',   99),
(1020,     '2011-07-27 09:14:38.000',   0),
(1020,     '2011-07-27 09:17:11.000',   99),
(1020,     '2011-07-27 09:38:22.000',   99)

;with cte as
( 
  select userid,
         TransactionTime,
         FunctionKey,
         row_number() over(partition by userid order by TransactionTime) as rn
  from @T
)
select C1.userid,
       C1.TransactionTime as InTime,
       C2.TransactionTime as OutTime
from cte as C1
  left outer join cte as C2
    on C1.userid = C2.userid and
       C1.rn + 1 = C2.rn
where C1.FunctionKey = 0

Result:

userid      InTime                  OutTime
----------- ----------------------- -----------------------
1018        2011-07-27 09:14:38.000 2011-07-27 09:17:11.000
1018        2011-07-27 09:38:22.000 2011-07-27 10:34:50.000
1019        2011-07-27 09:14:38.000 2011-07-27 09:17:11.000
1019        2011-07-27 09:17:11.000 2011-07-27 09:38:22.000
1020        2011-07-27 09:14:38.000 2011-07-27 09:17:11.000