汇总不同临时表中的数据

Question

I have 2 temp tables inside a procedure having data like see at the bottom of this ost.

In temporary table table 1 I have phone tickets for each category and each department d1 and d2.

Similarly in temporary table Table 2 I have IVR tickets for each category and each department d1 and d2.

Now I need to sum phone and IVR tickets and show as another temp table.

Answer 1

You can use a full join if the two table don't have the same number of rows:

select coalesce(t1.categoryname, t2.categoryname) as categoryname,
       coalesce(t1.departmentname, t2.departmentname) as departmentname,
       coalesce(phonetickets, 0) + coalesce(ivrtickets, 0) as total_tickets
from table1 t1 full join
     table2 t2
     on t1.categoryname = t2.categoryname and
        t1.departmentname = t2.departmentname;

If the two tables have the same categories and departments, then inner join is fine.

Answer 2

You can USE a UNION ALL and GROUP BY to get the result that you want

;WITH tckts as (
Select 
  CategoryName
  ,DepartmentName
  ,PhoneTickets [Tickets]
FROM Table1 t1
UNION ALL
Select 
  CategoryName
  ,DepartmentName
  ,IVRTickets [Tickets]
FROM Table2 t2
)
SELECT 
  CategoryName
  ,DepartmentName
  ,SUM(Tickets) [TotalTickets]
FROM tckts
GROUP BY CategoryName, DepartmentName

A better way to do the same would be to create a single table for both Phone Tickets and IVR Tickets and have a column, lets say [TicketType] which will have a value describing whether the ticket is a Phone Ticket or an IVR Ticket or any other Ticket types you have in the Future