Preheat oven to 425 degrees. Grease a 9 inch square baking pan.
Combine the cornmeal, flour, baking powder, baking soda, salt, and sugar in a large mixing bowl. In another bowl, whisk together the buttermilk and eggs; stir in the cream-style corn and melted butter.
Stir the wet ingredients into the dry ingredients just until blended. Spoon into the prepared pan. Bake for 20-25 minutes, until golden brown and the cornbread springs back when lightly touch with a finger. Cool slightly before cutting.