CREATE TABLE table_56819 ("Outcome" CLOB, "Date" CLOB, "Tournament" CLOB, "Surface" CLOB, "Opponent in the final" CLOB, "Score in the final" CLOB)

Which date has an Outcome of runner-up, and an Opponent in the final of gilles simon?
SELECT "Date" FROM table_56819 WHERE "Outcome" = 'runner-up' AND "Opponent in the final" = 'gilles simon'
SELECT "Date" FROM "table_56819" WHERE "Opponent in the final" = 'gilles simon' AND "Outcome" = 'runner-up'