Google BigQuery CASE function

Question

I\'m trying to run a query like what\'s answered here, SQL Selecting multiple sums?

SELECT  SUM(CASE WHEN order_date >= \'01/01/09\' THEN quantity ELSE 0          


        

Answer 1

2013 update: BigQuery supports CASE:

SELECT CASE WHEN x=1 THEN 'one' WHEN x=2 THEN 'two' ELSE 'more' END 
FROM (SELECT 1 AS x) 

'one'