Instructions: For each of the two ER Diagrams, map the ER diagram into a relational schema. PK is underlined or each entity. Clearly indicate all foreign keys and including whether NULLs allowed or not allowed in the FKs.

Hint: For the Publishes_with relationship, refer to the examples on mapping many-to many unary relationship. Also note that PubCount is an attribute of the relationship Publishes_with.

PubCount