sql - calculate total salary based on employee type -


i want calculate salary each employee foe each month,

i have 2 tables , 2 views looks this

employees_view

| id |  name | payrate | payunitcode | commission | |----|-------|---------|-------------|------------| |  1 | james |      10 |           c |          0 | |  2 |  mike |   10000 |           s |          0 | |  3 |  jude |   20000 |          sc |          5 | |  4 | clara |       8 |           c |          0 |

jobs

| id |             created | |----|---------------------| |  1 | 01/21/2016 10:56:05 | |  2 | 01/21/2016 10:56:05 | |  3 | 01/21/2016 10:56:05 | |  4 | 01/21/2016 10:56:05 | |  5 | 01/21/2016 12:11:59 | |  6 | 01/25/2016 08:03:07 | |  7 | 11/01/2015 22:55:22 |

job_items_view

| job_id | amount | emp_id | |--------|--------|--------| |      1 |    135 |      4 | |      1 |    500 |      2 | |      3 |   1500 |      2 | |      3 |    250 |      4 | |      4 |   1000 |      2 | |      5 |    500 |      4 | |      6 |    500 |      4 | |      7 |   1000 |      1 |

payunits

| code |                   name | |------|------------------------| |    s |                 salary | |    c |             commission | |   sc | salary plus commission |

i have sql fiddle here data

when execute query

declare @startdatetime datetime = '2015-11-01 00:00:00' declare @enddatetime datetime = '2016-02-28 23:59:59'  ;with sales (   select      ev.id,     isnull(sum(jiv.amount), 0) totalsales,     month(j.created) [month],     year(j.created) [year]   employees_view ev   left join job_items_view jiv on jiv.emp_id = ev.id   left join jobs j on j.id = jiv.job_id   j.created between @startdatetime , @enddatetime   group      ev.id,     month(j.created),     year(j.created) ), commissions (   select     s.id,     case ev.payunitcode        when 'c' s.totalsales * (ev.payrate / 100)          when 'sc' (select sum(amount) job_items_view) * (ev.commission / 100)       else 0     end totalcommission   sales s   join employees_view ev on ev.id = s.id ), salaries (   select      id,      case payunitcode        when 'c' 0        else payrate      end salary    employees_view  ), totals (   select      salaries.id,     isnull(sales.month, month(@startdatetime)) [month],     isnull(sales.year, year(@startdatetime)) [year],     isnull(sales.totalsales, 0) totalsales,     salaries.salary,     isnull(commissions.totalcommission, 0) totalcommission   salaries   left join sales on salaries.id = sales.id   left join commissions on commissions.id = sales.id ) select    ev.payrate,   ev.name,   t.salary + t.totalcommission pay,   left(datename(month, dateadd(month , t.[month], -1)), 3)      + '-' + cast(t.[year] varchar) [month],   ev.id emp_id,   pu.name payunit,   ev.commission totals t join employees_view ev on ev.id = t.id join payunits pu on pu.code = ev.payunitcode

i get

| payrate |  name |   pay |    month | emp_id |                payunit | commission | |---------|-------|-------|----------|--------|------------------------|------------| |      10 | james |   100 | nov-2015 |      1 |             commission |          0 | |   10000 |  mike | 10000 | jan-2016 |      2 |                 salary |          0 | |   20000 |  jude | 20000 | nov-2015 |      3 | salary plus commission |          5 | |       8 | clara | 110.8 | jan-2016 |      4 |             commission |          0 |

i expect get

| payrate |  name |   pay  |    month | emp_id |                payunit | commission | |---------|-------|--------|----------|--------|------------------------|------------| |      10 | james |   100  | nov-2015 |      1 |             commission |          0 | |   10000 |  mike | 10000  | jan-2016 |      2 |                 salary |          0 | |   2000  |  jude |20269.25| nov-2015 |      3 | salary plus commission |          5 | |       8 | clara | 110.8  | jan-2016 |      4 |             commission |          0 |

for payunit.code = c (commission) , pay = total sales * (employee.payrate/100)

for payunit.code = s (salary) , pay = employee.payrate

for payunit.code = sc (salary plus commission) , pay =employee.payrate + (total sales * (employee.commission/100))

take note of judes pay 20269.25 rather 20000 in previous table

this happens because exclude jude sales cte when filtering whole joined recordset period (despite left join) , no commission calculated against record in commissions cte. instead, should apply filter jobs subset this:

with sales (   select      ev.id,     isnull(sum(jiv.amount), 0) totalsales,     month(j.created) [month],     year(j.created) [year]   employees_view ev   left join job_items_view jiv on jiv.emp_id = ev.id   left join    (select * jobs created between @startdatetime , @enddatetime) j on j.id = jiv.job_id   group      ev.id,     month(j.created),     year(j.created) )

here updated sqlfiddle


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