CREATE TABLE table_24297 ("Date" CLOB, "Time" CLOB, "ACC Team" CLOB, "Big Ten Team" CLOB, "Location" CLOB, "Television" CLOB, "Attendance" FLOAT, "Winner" CLOB, "Challenge Leader" CLOB)

How many dates have a big ten team of #10 purdue?
SELECT COUNT("Date") FROM table_24297 WHERE "Big Ten Team" = '#10 Purdue'
SELECT COUNT("Date") FROM "table_24297" WHERE "Big Ten Team" = '#10 Purdue'