How can I get the total worked hours by employee in a specific month using sql server 2008?

Question

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SQL-Server-2008R2

I'm trying to display the total worked hours for each employee in a specific month, I'm using a table "Emp_Attendance" which contain the (EmpID,_date Times_In, Times_Out)

I try this sql query but it gives me a wrong result (the right result is 14:00 but it gives me 104:16)

SQL

WITH att As
( SELECT EmpID ,
Times_In, Times_Out,
ROW_NUMBER() OVER (PARTITION BY EmpID ORDER BY Times_In) As RNI,
ROW_NUMBER() OVER (PARTITION BY EmpID ORDER BY Times_Out DESC) As RNO
FROM dbo.Emp_Attendance
WHERE
Month(Times_Out) = 6  )

SELECT EmpID,
CONVERT(varchar(3),(Datediff (MINUTE,  Max(CASE WHEN RNI = 1 THEN Times_In ELSE Null END), Max(CASE WHEN RNO = 4 THEN Times_Out ELSE Null END))+
   Datediff (MINUTE,   Max(CASE WHEN RNI = 2 THEN Times_In ELSE Null END), Max(CASE WHEN RNO = 3 THEN Times_Out ELSE Null END))+
    Datediff (MINUTE,   Max(CASE WHEN RNI = 3 THEN Times_In ELSE Null END), Max(CASE WHEN RNO = 2 THEN Times_Out ELSE Null END))+
     Datediff (MINUTE,    Max(CASE WHEN RNI = 4 THEN Times_In ELSE Null END), Max(CASE WHEN RNO = 1 THEN Times_Out ELSE Null END)) ) /60 )
     +':' +  RIGHT('0' + CONVERT(varchar(2),
    (Datediff (MINUTE,  Max(CASE WHEN RNI = 1 THEN Times_In ELSE Null END), Max(CASE WHEN RNO = 4 THEN Times_Out ELSE Null END))+
   Datediff (MINUTE,   Max(CASE WHEN RNI = 2 THEN Times_In ELSE Null END), Max(CASE WHEN RNO = 3 THEN Times_Out ELSE Null END))+
    Datediff (MINUTE,   Max(CASE WHEN RNI = 3 THEN Times_In ELSE Null END), Max(CASE WHEN RNO = 2 THEN Times_Out ELSE Null END))+
     Datediff (MINUTE,    Max(CASE WHEN RNI = 4 THEN Times_In ELSE Null END), Max(CASE WHEN RNO = 1 THEN Times_Out ELSE Null END))) %60 ) ,2)
     as total
FROM att
GROUP BY EmpID

SQL

Posted 11-Jun-15 3:43am

Member 10286520

Updated 11-Jun-15 3:44am

v2

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CHill60 11-Jun-15 10:06am

A few rows of sample data would be useful

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CHill60 · Accepted Answer · 2015-06-11T04:23:00

It's not entirely clear why you are checking Row Numbers nor why you have a CTE.

From the problem as you have described it, this simple query will give you the results you need

SQL

select EmpId, SUM(DATEDIFF(MINUTE, Times_In, Times_Out)) / 60.0
from Emp_Attendance
where MONTH(Times_In) = 6
GROUP BY EmpId

Note the .0 on the division to ensure we don't lose any partial hours.