Problem
Develop an ER diagram for the given scenario below. this assignment, you will need to use a free account on DB Designer and the tutorials for DB Designer.
Mark Harris, the sales manager has requested that you develop an ER model for his customer relationship management (CRM) system that he is proposing. The requirements for the database are:
1) The model must store mailing and contact information for all clients.
2) The clients may have multiple contacts.
3) Each of these contacts may have a different address.
4) The model must store short description of each e-mail, conversation, or mailing to each client.
5) The model must attach the client to the assigned sales person.
Accomplish the following tasks:
1) In DB Designer, make an ER diagram that meets the above requirements. Include both Entity Classes and attributes that are necessary, given the above requirements. Take a screenshot of
2) Your ER chart and export your schema as a .sql file. describe the various relationships between the different entities in the ER diagram.