Draw by Visio 2013

1-Draw the ERD with cardinalities and keys based on the following description. A player is identified by a player number, and a team is identified by a team name. A player does not have to have a team and may only be on one team. A team must have at least one player and may have many.

2-Draw the ERD with cardinalities and keys based on the following description. A player is identified by their player number and a team is identified by their team name. A player does not have to have a team and may have many teams. A team must have at least one player and may have many. If an associative entity is needed, then add it and assign a composite key as the identifier when necessary.