Adding MySQL alias fields together

Question

Consider a query similar to:

 SELECT sum(EXPR) as total,
        sum(EXPR) as total2, 
        sum(total+total2) as grandtotal 
 FROM tablename

Answer 1

SELECT
WITH Sums AS
(
 SELECT sum(EXPR) as total, 
        sum(EXPR) as total2
 FROM tablename 
)
SELECT SUM(sums);

for you tsql fans...