i want to show sum of this query as only one cell but here the result shows as a column like this Total Sum 

```
  500
  1000

```

but i want to show the sum of this records (1500)

this is my query :

```
select sum(MAL_TASWYAHESAB.MADINMONY) as'Total Sum' from MAL_TASWYAHESAB  
union 
select sum(MAL_AMRSARF_OHAD.MONY) as'Total Sum' from MAL_AMRSARF_OHAD

```