A logical description of some portion of database that is required by a user to perform task is called as a. System View b. User View c. Logical View d. Data View

What's most important when constructing a physical database?

Part A - Database design case study In this part, you need to provide a short description of the application/website for which you will be designing the database (The overview of your own/chosen case study that is related to the assignment topic), outline the basic functions that your database needs to support, identify the data requirements, and business rules.

The following database is maintained by a bookstore: the database structure is shown below. AUTHOR(AuthorName) BOOK(ISBN, AuthorName, Title, PublisherName, PublicationYear, RetailPrice)AuthorName foreign key to AUTHORPublisherName foreign key to PUBLISHER PUBLISHER(PublisherName) CUSTOMER(CustomerNumber, Name, Address, Phone, Email, CreditCardNumber, ExpiryDate) ORDER(OrderNumber, CustomerNumber, OrderDate)CustomerNumber foreign key to CUSTOMER ORDERDETAIL(OrderNumber, ISBN, QuantitySold, RetailPrice, TotalCost)OrderNumber foreign key to ORDER Write SQL code to implement the following separate queries numbered 1 to 4: 1. Find all orders placed in 2018-2019.  2. Report the following information: ISBN, AuthorName, Title, RetailPrice for all books written byAlexandre Dumas or by Mark Twain, published by ClassicsPublishingCo, with a retail price at least$24.99. 3. Create a table which shows the value of orders by each customer who actually placed an orderin 2019. Group in order by customer…

Identifying relationships, non-identifying relationships, and non-specific relationships should all be described in a database's representations of their respective types.