Design a relational database schema for the object model of Figure, Assume Leagues, Tournaments, Players, and Rounds have a name attribute and a unique identifier. Additionally, Tournaments and Rounds have start and end date attributes. When different transformations are available, explain the trade-off involved.

Figure: Associations among League, Tournament, Round , and Player (UML class diagram).

Transcribed Image Text:

Tournament League Round Player Tournament League Round Player