CREATE TABLE table_2105 ("Institution" TEXT, "Location" TEXT, "Founded" FLOAT, "Type" TEXT, "Enrollment" FLOAT, "Nickname" TEXT, "Joined" FLOAT, "Division" TEXT)

How many teams have skyhawks as a nickname?
SELECT COUNT("Division") FROM table_2105 WHERE "Nickname" = 'Skyhawks'
SELECT COUNT("Division") FROM "table_2105" WHERE "Nickname" = 'Skyhawks'