SQL Server : SUM() of multiple rows including where clauses

Question

I have a table that looks something like the following :

  PropertyID     Amount     Type       EndDate
 --------------------------------------------
   1           


        

Answer 1

Use a common table expression to add grand total row, top 100 is required for order by to work.

With Detail as 
(
    SELECT  top 100 propertyId, SUM(Amount) as TOTAL_COSTS
    FROM MyTable
    WHERE EndDate IS NULL
    GROUP BY propertyId
    ORDER BY TOTAL_COSTS desc
)

Select * from Detail
Union all
Select ' Total ', sum(TOTAL_COSTS) from Detail