CREATE TABLE table_19684 ("Year" FLOAT, "Mens singles" CLOB, "Womens singles" CLOB, "Mens doubles" CLOB, "Womens doubles" CLOB, "Mixed doubles" CLOB)

What is the result of men's doubles when there was no competition?
SELECT "Mixed doubles" FROM table_19684 WHERE "Mens doubles" = 'no competition'
SELECT "Mixed doubles" FROM "table_19684" WHERE "Mens doubles" = 'no competition'