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Why is my sum function not working properly?
I am trying to do a simple sum on the "Booking_Factor" column(int) and it is not summing at all as if nothing , the values are the same, any idea? Thank You.
SELECT distinct
RES.Description,
Available_Date,
--LOC.Scheduling_Location_ID,
--DEPT.Description,
--Day_Type_ID,
--Available_Time_Block_ID,
--Available_Time_Block_TS,
Start_Time,
End_Time,
Usual_Appt_Duration,
SUM(Booking_Factor)AS Capacity
-- AVAILBLOCK.Activity_Type_ID,
-- ELIG.Appointment_Category_ID AS Elig_Appointment_Category_ID,
--INELIG.Appointment_Category_ID AS Inelig_Appointment_Category_ID
FROM PM.Available_Days AVAILDAY WITH (NOLOCK)
LEFT JOIN PM.Available_Time_Blocks AVAILBLOCK WITH (NOLOCK) ON AVAILBLOCK.Available_Day_ID = AVAILDAY.Available_Day_ID
--LEFT JOIN PM.Scheduling_Locations LOC WITH (NOLOCK) ON LOC.Scheduling_Location_ID = AVAILDAY.Scheduling_Location_ID
--LEFT JOIN PM.Scheduling_Departments DEPT ON DEPT.Scheduling_Department_ID = AVAILDAY.Scheduling_Department_ID
LEFT JOIN PM.Resources RES WITH (NOLOCK) ON RES.Resource_ID = AVAILDAY.Resource_ID
--LEFT JOIN PM.Activity_Elig_Appt_Categs ELIG WITH (NOLOCK) ON ELIG.Activity_Type_ID = AVAILBLOCK.Activity_Type_ID
--LEFT JOIN PM.Activity_Inelig_Appt_Categs INELIG WITH (NOLOCK) ON INELIG.Activity_Type_ID = AVAILBLOCK.Activity_Type_ID
WHERE AVAILDAY.Available_Date = '2017-03-09'
AND RES.Description = 'REYNOLDS, EUGENE II'
group by
RES.Description,
Available_Date,
Start_Time,
End_Time,
Usual_Appt_Duration
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Is you Available_Date column a date or a datetime data type? If the last one, then you should use a 24h interval to get all records for that day.
Also, you don't need the DISTINCT keyword since you're using GROUP BY:
Also, you don't need the DISTINCT keyword since you're using GROUP BY:
SELECT
RES.Description,
Available_Date,
Start_Time,
End_Time,
Usual_Appt_Duration,
SUM(Booking_Factor)AS Capacity
FROM PM.Available_Days AVAILDAY WITH (NOLOCK)
LEFT JOIN PM.Available_Time_Blocks AVAILBLOCK WITH (NOLOCK) ON AVAILBLOCK.Available_Day_ID = AVAILDAY.Available_Day_ID
LEFT JOIN PM.Resources RES WITH (NOLOCK) ON RES.Resource_ID = AVAILDAY.Resource_ID
WHERE AVAILDAY.Available_Date BETWEEN '20170309' AND '20170310'
AND RES.Description = 'REYNOLDS, EUGENE II'
GROUP BY
RES.Description,
Available_Date,
Start_Time,
End_Time,
Usual_Appt_Duration
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yes! the following is what worked:
SELECT
RES.Description,
Available_Date,
--LOC.Scheduling_Location_ID,
--DEPT.Description,
--Day_Type_ID,
--Available_Time_Block_ID,
--Available_Time_Block_TS,
--Start_Time ,
--End_Time,
--Usual_Appt_Duration,
sum( Booking_Factor)as capacity
-- AVAILBLOCK.Activity_Type_ID,
-- ELIG.Appointment_Category_ID AS Elig_Appointment_Category_ID,
--INELIG.Appointment_Category_ID AS Inelig_Appointment_Category_ID
FROM PM.Available_Days AVAILDAY
LEFT JOIN PM.Available_Time_Blocks AVAILBLOCK ON AVAILBLOCK.Available_Day_ID = AVAILDAY.Available_Day_ID
LEFT JOIN PM.Scheduling_Locations LOC WITH (NOLOCK) ON LOC.Scheduling_Location_ID = AVAILDAY.Scheduling_Location_ID
LEFT JOIN PM.Scheduling_Departments DEPT ON DEPT.Scheduling_Department_ID = AVAILDAY.Scheduling_Department_ID
LEFT JOIN PM.Resources RES ON RES.Resource_ID = AVAILDAY.Resource_ID
LEFT JOIN PM.Activity_Elig_Appt_Categs ELIG WITH (NOLOCK) ON ELIG.Activity_Type_ID = AVAILBLOCK.Activity_Type_ID
LEFT JOIN PM.Activity_Inelig_Appt_Categs INELIG WITH (NOLOCK) ON INELIG.Activity_Type_ID = AVAILBLOCK.Activity_Type_ID
WHERE AVAILDAY.Available_Date = '2017-03-08'
AND RES.Description = 'example MD, Name'
group by
RES.Description,
Available_Date
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Define in simple English what you wish to sum Booking_Factor by. RES.Description? Available_Date_ID?
Then eyeballeth all of the columns in your GROUP BY clause, especially Start_Time and End_Time. Are they unique? If yes, that kinda defeats the purpose of doing the SUM, and you'll have to remove those columns and possibly others to get the correct sum amount.