bigquery declare
DECLARE fromdate TIMESTAMP DEFAULT '2014-01-01 00:00:00'; -- dates for after 2013
DECLARE todate TIMESTAMP DEFAULT '2015-01-01 00:00:00';
DECLARE bfromdate TIMESTAMP DEFAULT '2005-01-01 00:00:00'; -- dates for before 2013
DECLARE btodate TIMESTAMP DEFAULT '2005-01-01 00:00:00';
DECLARE achfromdate TIMESTAMP DEFAULT '2013-01-01 00:00:00'; -- dates for ACH without submit time in 2013
DECLARE achtodate TIMESTAMP DEFAULT '2013-01-01 00:00:00';
DECLARE currency STRING DEFAULT "USD";