Question

SELECT  e.firstName,t.setDate, w.wageAmount
         FROM TimeSheet t
         INNER JOIN Employee e
         ON e.employeeID = t.employeeID
         INNER JOIN Salary s
         ON s.salaryID = t.salaryID
         INNER JOIN Wage w
         ON w.wageID = s.wageID
         INNER JOIN EmpHiringInfo ehf
         ON ehf.EmpHiringInfoID = s.EmpHiringInfoID
         INNER JOIN WageType wt
         ON wt.wageTypeID = w.wageTypeID
         WHERE (wt.wageTypeID = 19) AND (ehf.isActive = 1 AND s.isActive = 1
         AND ehf.employeeID = 300) AND (CONVERT(varchar, t.setDate, 23) BETWEEN '2000-08-02' AND '2020-08-04')

By the way, the wage is only one for every month, so the wage is repetitive. So for the month 11,2010 wage is 3600 regardless how many days in 11,2010 …

The above sample produce the following sample code:

I need to gather all similar month/year into one cell discarding days and time. For example
2010-11-12 and 2010-11-26 has to be contracted to one cell as 2010-11 (in any format).

Any help is appreciated.

Answer 1

To Unify all the dates to months you can do something like this:

dateadd(mm,datediff(mm,0,t.setDate),0)

But you will need to group by this is you want to do aggregations:

select e.firstName,dateadd(mm,datediff(mm,0,t.setDate),0), sum(w.wageAmount)
from ...
group by e.firstName, dateadd(mm,datediff(mm,0,t.setDate),0)