CREATE TABLE table_17505 ("Year" FLOAT, "Mens singles" CLOB, "Womens singles" CLOB, "Mens doubles" CLOB, "Womens doubles" CLOB, "Mixed doubles" CLOB)

How many Mixed Doubles won when Oliver Pongratz won the Men's Singles?
SELECT COUNT("Mixed doubles") FROM table_17505 WHERE "Mens singles" = 'Oliver Pongratz'
SELECT COUNT("Mixed doubles") FROM "table_17505" WHERE "Mens singles" = 'Oliver Pongratz'