@Dao
interface UserDao {

	/* PLAYER */

	@Insert
	fun insertPlayer(player: Player) : Long

	@Insert
	fun insertPlayers(players: List<Player>) : List<Long>

	@Insert
	fun insertPlayers(vararg players: Player)

	@Update
	fun updatePlayer(player: Player)
	...

	@Delete
	fun deletePlayer(player: Player)
	...

	@Query("SELECT * FROM Player")
	fun getAllPlayer(): List<Player>

	@Query("SELECT * FROM Player WHERE id=:playerId")
	fun getPlayer(playerId: Long) : Player

	/* Coach */
	...
}