how to generate salary total sql server - sql-server

Question

I have below tables called dailyshift,in 24 hours format
1 dailyshift
shiftid,employeeid,shiftdate ,starttime ,endtime hours
1 1 16th Aug 2019 , 08:00 15:00 7
2 1 18th Aug 2019 , 08:00 15:00 7
2 1 22th Aug 2019 , 08:00 15:00 7
3 2 17th Aug 2019 , 16:00 20:00 4
2 employeesalary
employeeid,salary, startdate , enddate
1 ,10, , 1st Aug 2019 , 16th Aug 2019
1 ,20, , 17st Aug 2019 , 20th Aug 2019
2 ,25, , 15st Aug 2019 , 20th Aug 2019
we need to have ouptput week wise salary total like, we need to make total salary by employee per week ,according to their configured salary per hour.
empleeid week weektotal
1 12th to 18th Aug 210
1 19th to 25th Aug 140
2 12th to 18th Aug 100
I have tried below but it is giving not accurate total
select employeeid,sum(d.hours*salary) as weektotal from dailyshift as d
inner join employeesalary as e
on d.employeeid=e.employeeid
group by employeeid
can we have way to make this?

Answer 1

Query may seems complex, but if you go through part by part, you will understand everything. CTE and CTE2 is just use for date manipulation to get the desired result.
WITH CTE AS(
SELECT *,
DATEADD(DAY, 1 - IIF(DATEPART(WEEKDAY, CAST(REPLACE(REPLACE(REPLACE(REPLACE(shiftdate,'st ','-'),'nd ','-'),'rd ','-'),'th ','-') AS DATETIME))-1 = 0,7,
DATEPART(WEEKDAY, CAST(REPLACE(REPLACE(REPLACE(REPLACE(shiftdate,'st ','-'),'nd ','-'),'rd ','-'),'th ','-') AS DATETIME))-1),
CAST(REPLACE(REPLACE(REPLACE(REPLACE(shiftdate,'st ','-'),'nd ','-'),'rd ','-'),'th ','-') AS DATETIME)) [Week_Start_Date],
DATEADD(DAY, 7 - IIF(DATEPART(WEEKDAY, CAST(REPLACE(REPLACE(REPLACE(REPLACE(shiftdate,'st ','-'),'nd ','-'),'rd ','-'),'th ','-') AS DATETIME))-1 = 0,7,
DATEPART(WEEKDAY, CAST(REPLACE(REPLACE(REPLACE(REPLACE(shiftdate,'st ','-'),'nd ','-'),'rd ','-'),'th ','-') AS DATETIME))-1),
CAST(REPLACE(REPLACE(REPLACE(REPLACE(shiftdate,'st ','-'),'nd ','-'),'rd ','-'),'th ','-') AS DATETIME)) [Week_End_Date]
FROM dailyshift
),
CTE2 AS(
SELECT A.shiftid,A.employeeid,A.shiftdate,A.starttime,A.endtime,A.hours,
CAST(DAY(Week_Start_Date) AS VARCHAR)+
CASE
WHEN DAY(Week_Start_Date) % 100 IN (11,12,13) THEN 'th ' --first checks for exception
WHEN DAY(Week_Start_Date) % 10 = 1 THEN 'st '
WHEN DAY(Week_Start_Date) % 10 = 2 THEN 'nd '
WHEN DAY(Week_Start_Date) % 10 = 3 THEN 'rd '
ELSE 'th ' --works for num % 10 IN (4,5,6,7,8,9,0)
END
+'To '+
CAST(DAY(Week_End_Date) AS VARCHAR) +
CASE
WHEN DAY(Week_End_Date) % 100 IN (11,12,13) THEN 'th ' --first checks for exception
WHEN DAY(Week_End_Date) % 10 = 1 THEN 'st '
WHEN DAY(Week_End_Date) % 10 = 2 THEN 'nd '
WHEN DAY(Week_End_Date) % 10 = 3 THEN 'rd '
ELSE 'th ' --works for num % 10 IN (4,5,6,7,8,9,0)
END +
LEFT(DATENAME(Month,Week_End_Date),3) +' '+
CAST(YEAR(Week_End_Date) AS VARCHAR) grp_clm_name
FROM CTE A
)
SELECT A.employeeid,
A.grp_clm_name Week,
SUM(A.hours*B.salary) WeekTotal
FROM CTE2 A
INNER JOIN employeesalary B
ON A.employeeid = B.employeeid
AND CAST(REPLACE(REPLACE(REPLACE(REPLACE(A.shiftdate,'st ','-'),'nd ','-'),'rd ','-'),'th ','-') AS DATETIME)
BETWEEN CAST(REPLACE(REPLACE(REPLACE(REPLACE(B.startdate,'st ','-'),'nd ','-'),'rd ','-'),'th ','-') AS DATETIME)
AND CAST(REPLACE(REPLACE(REPLACE(REPLACE(B.enddate,'st ','-'),'nd ','-'),'rd ','-'),'th ','-') AS DATETIME)
GROUP BY A.employeeid, A.grp_clm_name
ORDER BY 1
Output is-
employeeid Week eekTotal
1 2th To 18th Aug 2019 210
2 12th To 18th Aug 2019 100
Row with value "1 19th to 25th Aug 140" is missing as you have no salary definition for employee 1 for date 22th Aug 2019

Answer 2

You need the applicable salary for the shift date so you need to do the following:
select d.employeeid, sum(d.hours * e.salary) as weektotal
from dailyshift as d
inner join employeesalary as e
on d.employeeid = e.employeeid
and d.shiftdate >= e.startdate
and d.shiftdate <= e.endate
group by d.employeeid

Answer 3

Assuming EmployeeSalary tables contains the hourly salary of employees, each employee can have different salary for different period.
Following query must give you expected result:
select employeeid,
DATEADD(day, -(DATEPART(dw, d.shiftdate)-1), d.shiftdate) [WeekStart],
DATEADD(day, 7-(DATEPART(dw, d.shiftdate)), d.shiftdate) [WeekEnd],
sum(d.hours*salary) as Weektotal
from dailyshift as d
inner join employeesalary as e
on d.employeeid=e.employeeid and d.shiftdate between e.startdate and e.enddate
group by employeeid, DATEADD(day, -(DATEPART(dw, d.shiftdate)-1), d.shiftdate), DATEADD(day, 7-(DATEPART(dw, d.shiftdate)), d.shiftdate)