PART ONE

PART TWO

E3.5 for the ER diagrams created in the following exercises, map the ER diagram into a relational schema and do the following:

E3.5a for exercise E2.2a, show several records in each relation and mark those values that indicate mandatory participation on the 1 side and those that indicate optional participation on the M side.

E3.5b For exercise E2.2b, show several records in each relation and mark those values that indicate mandatory participation in the 1 side and those that indicate mandatory participation on the M side.

E3.5c For exercise E2.2, show several records in each relation and mark those values that indicate mandatory participation on the 1 side and those that indicate mandatory participation on the M side.

E3.5d For exercise E2.2d, show several records in each relation and mark those values that indicate optional participation on the 1 side and those that indicate optional participation on the M side.

E3.5e For exercise e2.2d, show several records in each relation and mark those values that indicate mandatory participation on one side and those that indicate optional participation on the other side.

E3.5f for exercise E2.2f, show several records in each relation and mark those values that indicate mandatory participation on one side and those that indicate mandatory participation on the other side

E3.5g for exercise E2.2g, show several records in each relation and mark those values that indicate optional participation on one side and those that indicate optional participation on the other side

Exercises Create an example of an entity with several attribu E2.1 E2.2 Create requirements and the ER diagram for a scenario with two entities (both with several attributes) involved in the following relationship: E2.2a 1:M relationship, where participation on the 1 side is mandatory and participation on the M side is optional. E2.2b 1:M relationship, where participation on the 1 side is optional and participation on the M side is E2.2c 1:M relationship, where participation on both E2.2d 1:M relationship, where participation on both E2.2e M:N relationship, where participation on one mandatory sides is mandatory. sides is optional. side is mandatory and participation on the other E2.2f M:N relationship, where participation on both E2.2g M:N relationship, where participation on both side is optional. sides is mandatory sides is optional