(Solved Homework): Construct an ER diagram (starting with the incomplete sample provided) for the SBH database. You may nee…

Problem Domain This case study deals with a system used by a bookshop chain, known as Sydney Book House (SBH). The information to be stored in the system includes four major categories of data: branch information about SBH, author information, book information, and publisher records. Information about employees of SBH and other relevant data are also stored in the system. A. Branch Information: SBH has several branches all over Sydney. The system shall contain a branch name, an ID number, address and number of employees working at that branch. B. Author Information: The system shall contain a list of author identifiers along with author name and author email address. C. Book Information: The system shall contain a list of unique book identifiers including book title, book type (e.g. fiction, history, education), price of that book and whether it is paperback or not (yes/no). The following business rules are operative: may or may not have published any books. 2. Each book must be written by at least one author. There may exist multiple authors for a book, in which case, the author sequence must be maintained as in the cover page of the book. Of course, an author can write many books or she might be waiting to publish her first work. 3. In addition, the system must keep track of the number of copies available of each book per branch of SBH. A branch may have many copies of a particular

Construct an ER diagram (starting with the incomplete sample provided) for the SBH database. You may need to introduce additional entities and relationships to capture the data requirements of SBH. You must include attributes, their appropriate data types and define identifiers for each entity in the process. You will also need to implement appropriate referential integrity constraints.

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Problem Domain This case study deals with a system used by a bookshop chain, known as Sydney Book House (SBH). The information to be stored in the system includes four major categories of data: branch information about SBH, author information, book information, and publisher records. Information about employees of SBH and other relevant data are also stored in the system. A. Branch Information: SBH has several branches all over Sydney. The system shall contain a branch name, an ID number, address and number of employees working at that branch. B. Author Information: The system shall contain a list of author identifiers along with author name and author email address. C. Book Information: The system shall contain a list of unique book identifiers including book title, book type (e.g. fiction, history, education), price of that book and whether it is paperback or not (yes/no). The following business rules are operative: may or may not have published any books. 2. Each book must be written by at least one author. There may exist multiple authors for a book, in which case, the author sequence must be maintained as in the cover page of the book. Of course, an author can write many books or she might be waiting to publish her first work. 3. In addition, the system must keep track of the number of copies available of each book per branch of SBH. A branch may have many copies of a particular

Expert Answer

 

The above is the ER diagram with all the necessary attributes and their datatypes. Relationships are also shown in the diagram

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