Database Schema is "A complete view of database tables as presented in a given database under a specific user log-in"?  True  False

Explain the advantages of using database views for security and abstraction in a database system.

Describe the benefits of using a data dictionary in the database design phase.

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…

Describe the concept of referential integrity and its role in maintaining data consistency in a relational database.

Relationships in a database might be either identifying or non-identifying or generic.