CREATE TABLE table_69752 ("Outcome" CLOB, "Date" CLOB, "Tournament" CLOB, "Surface" CLOB, "Opponent" CLOB, "Score" CLOB)

What date was the match on a clay surface against Andrea Hlav kov ?
SELECT "Date" FROM table_69752 WHERE "Surface" = 'clay' AND "Opponent" = 'andrea hlaváčková'
SELECT "Date" FROM "table_69752" WHERE "Opponent" = 'andrea hlaváčková' AND "Surface" = 'clay'