Sql query : sum of feild between two conditional date

hi
I have a table whit 3 field like below. I want to Find the
total number of hours in mode "run" after the latest mode "decoke".
field time is for every day and its unique.
id -- time -- mode -- hour
1 --1/1/1 -- run -- 24
2 -- 1/1/2 -- off -- 24
3 -- 1/1/3 decoke -- 24
4 -- 1/1/4 -- run -- 24
5 -- 1/1/5 -- run -- 24
this query should add row 4 and 5 , the latest "run" after "decoke"

Create table #temp
[id] int identity(1,1)
, [time] date
, [mode] varchar(50)
, [hour] int
Insert into #temp
Select '1/1/1' , 'run' ,24
Union
Select '1/1/2' , 'off' ,24
Union
Select '1/1/3' , 'decoke' ,24
Union
Select '1/1/4' , 'run' ,24
Union
Select '1/1/5' , 'run' ,24
-----Here is the Query-------
;With Cte_TotalTime
As
Select Max(time)[Time] from #temp Where mode = 'decoke'
Select SUM(a.hour) TotalRunHours from #temp a
Inner join Cte_TotalTime b on a.[time] > b.[Time]
And mode = 'run'
Drop table #temp
Please mark as answer if it is helpful to you.
Thanks

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http://roelhartman.blogspot.com/
http://www.bloggingaboutoracle.org/
http://www.logica.com/
You can award this reply to your question by marking it as either Helpful or Correct ;-)

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Hi,
create TABLE EMP(
ID_EMP NUMBER,
DT_FROM DATE,
DT_TO DATE,
CREATE_DATE DATE);
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Certainly not the best way to code the requirement, but it does achieve the result you are looking for in a fairly quick time
create or replace
function test_ret_paid_unpaid (p_date in date)
return varchar2
is
v_ret     varchar2(1);
begin
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end;
Wrote file afiedt.buf
1 with get_paid_unpaid as
2 (
3    select dt_from start_date, dt_to end_date, dt_from + level - 1 curr_date, test_ret_paid_unpaid(dt_from + level - 1) paid_unpaid,
4           row_number() over (order by dt_from + level - 1) rn_start,
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10 (
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17          then curr_date
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21 )
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24 select init_date, curr_date, start_date, end_date, stop_date,
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30    from get_stop_date
31   where stop_date is not null or start_date is not null
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PERIOD                                             PAID_UNPAID
01-JUL-08 - 01-JUL-09                              Y
02-JUL-09 - 25-JUL-09                              N
26-JUL-09 - 01-JAN-10                              Y
02-JAN-10 - 13-JAN-10                              N
14-JAN-10 - 18-JAN-10                              Y
19-JAN-10 - 30-APR-10                              N
6 rows selected.
Elapsed: 00:00:00.35

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Im using a left join to do a query, which gives me a set of results:
select COURSESTUDENT.StudentNo, COURSESTUDENT.CourseCode, COURSESTUDENT.Year, MARKS.ExamMark, MARKS.EntryNo FROM COURSESTUDENT LEFT JOIN MARKS ON COURSESTUDENT.StudentNo=MARKS.StudentNo AND COURSESTUDENT.CourseCode=MARKS.CourseCode AND COURSESTUDENT.Year=MARKS.Year
but I would like to do a select on this result but do not want to use a create view as if more than one person access this page at a time then if the servlet tries to create the view an error will occur.
I would like to do the following select statement on the results of the query above..
select * from (above) where CourseCode='ELE304' AND Year=1999;
Is this possible, im using postgres..
Please help......
thanks
tzaf

Sorry, I have never used postgres, but in several databases, the following syntax would work and provide the correct ResultSet.
select *
from (
     SELECT
         COURSESTUDENT.StudentNo,
         COURSESTUDENT.CourseCode,
         COURSESTUDENT.Year,
         MARKS.ExamMark,
         MARKS.EntryNo
     FROM
         COURSESTUDENT LEFT JOIN MARKS ON
         COURSESTUDENT.StudentNo=MARKS.StudentNo AND
         COURSESTUDENT.CourseCode=MARKS.CourseCode AND
         COURSESTUDENT.Year=MARKS.Year
     ) A
WHERE
    CourseCode='ELE304' AND
    Year=1999

Sql query to find activities between Login and Logout time

Hi ,
I have 2 tables as shown below
User Table
ActivityTable
i have a requirement in which i need to find all the activities done for a particular user inbetween login and logout time can anybody help me how to write sql query for this .

Is this what you looking for?
DECLARE @User TABLE
userid INT,
date DATETIME,
type VARCHAR(50),
sessionid SMALLINT
DECLARE @ActivityTable TABLE
activityid SMALLINT,
userid SMALLINT,
activity VARCHAR(50),
activitystarttime DATETIME,
activityendtime DATETIME
INSERT INTO @User
(userid,
[date],
[type],
sessionid)
VALUES (1,
'2002-08-25 16:51:25.107',
'Logon',
111),
(1,
'2002-08-25 17:52:25.107',
'LOGOFF',
111),
(2,
'2007-03-08 19:25:21.170',
'Logon',
222),
(2,
'2007-03-08 21:25:21.170',
'LOGOFF',
222),
(3,
'2007-03-08 19:25:21.170',
'Logon',
234);
INSERT INTO @ActivityTable
(activityid,
userid,
activity,
activitystarttime,
activityendtime)
VALUES (234,
1,
'development',
'2002-08-25 16:53:23.101',
'2002-08-25 16:59:23.170'),
(789,
2,
'Testing',
'2007-03-08 19:53:23.180',
'2007-03-08 20:53:23.180'),
(789,
2,
'Lunch',
'2007-03-08 19:53:23.180',
'2007-03-08 20:53:23.180'),
(456,
3,
'Testing',
'2007-03-08 19:53:23.180',
'2007-03-08 20:53:23.180'),
(781,
1,
'Lunch',
'2002-08-25 17:00:23.101',
'2002-08-25 17:30:00.170'),
(781,
1,
'Lunch',
'2002-08-25 21:00:23.101',
'2002-08-25 22:30:00.170');
WITH logon
AS (SELECT date,
userid
FROM @User
WHERE type = 'Logon'),
logoff
AS (SELECT date,
userid
FROM @User
WHERE type = 'LOGOFF')
SELECT at.*
FROM @ActivityTable AT
INNER JOIN logon Lo
ON at.userid = lo.userid
INNER JOIN logoff LF
ON at.userid = lf.userid
WHERE At.activityendtime < LF.date
AND AT.activitystarttime > LO.date
Regards,
Vishal Patel
Blog: http://vspatel.co.uk
Site: http://lehrity.com

Sql query : sum of feild between two conditional date

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