CREATE TABLE table_9539 ("Tournament" CLOB, "2006" CLOB, "2007" CLOB, "2008" CLOB, "2009" CLOB, "2010" CLOB, "2011" CLOB, "2012" CLOB)

What 2010 has an A 2006 & 2011?
SELECT "2010" FROM table_9539 WHERE "2006" = 'a' AND "2011" = 'a'
SELECT "2010" FROM "table_9539" WHERE "2006" = 'a' AND "2011" = 'a'