CREATE TABLE table_68034 ("Date" TEXT, "Tournament" TEXT, "Surface" TEXT, "Opponent in the Final" TEXT, "Score" TEXT)

Which tournament has hard as the surface and apr. 12, 1998 as the date?
SELECT "Tournament" FROM table_68034 WHERE "Surface" = 'hard' AND "Date" = 'apr. 12, 1998'
SELECT "Tournament" FROM "table_68034" WHERE "Date" = 'apr. 12, 1998' AND "Surface" = 'hard'