CREATE TABLE table_17529 ("Number" FLOAT, "Name" CLOB, "Titles" CLOB, "Date" CLOB, "Opponent" CLOB, "Result" CLOB, "Defenses" FLOAT)

How many times was pernell whitaker an opponent?
SELECT COUNT("Date") FROM table_17529 WHERE "Opponent" = 'Pernell Whitaker'
SELECT COUNT("Date") FROM "table_17529" WHERE "Opponent" = 'Pernell Whitaker'