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How to calculate overtime and amount in SQL

akhter86 asked:

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I have two table

Employee master table and another one Employee Attendance Table

No i have calculate Hours and Day on the basis of INTIME and OUTTIME ,
Now i want to calculate Overtime Hours From Hours(Hours-8Hours(standard Hours)),overtime will be calculated then i want add condition that if employee is allowed to avail OVertime then employee overtime will be calculated other wise will not calculated.Like (Overtime * 100(Overtime Rate).

If Hours =0 then their OT will be =0 but value are coming in minus.


What I have tried:

SELECT Empcode,cast(Date as date) As [Date],
   MIN(CASE WHEN INOUT = 1 THEN date END) AS INOUT_INTIME,
   MAX(CASE WHEN INOUT = 2 THEN date END) AS INOUT_OutTime,
   DATEDIFF(Hour ,MIN(Date),Max(Date)) AS [Hours],
   case when DATEDIFF(Hour ,MIN(Date),Max(Date)) >= 8 Then 1  
        when DATEDIFF(Hour ,MIN(Date),Max(Date))  = 0 then 0 
         when DATEDIFF(Hour ,MIN(Date),Max(Date))  >=6 then 0.5 
        end as [Day],
           Case when DATEDIFF(Hour ,MIN(Date),Max(Date))-8 and end
         as [OT],
     
   FROM HR2 AS t
   GROUP BY Empcode,CONVERT(date, date);
Tags: SQL

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