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The following relational database schema represents part of a simplified database used by a library:
tblBook (BookID, Title, PublisherID, Category,Price) tblPublisher (PublisherID, PublisherName,PublisherCity) tblAuthor (AuthorID, AuthorName, AuthorCity) tblBookAuthor (BookID, AuthorID)
a) Draw an ERD for the above relational schema.
b) Write SQL statements to perform the following queries.
i) List the title and price of all books with category 'Database' sorted in alphabetical order of title and ascending order of price ii) List the categories and the average price of a book in each category. iii) List the title and category of the most expensive book. iv) List the title and price of all 'Internet' books published by 'McGraw-Hill'. v) List the author who has written the most expensive book.
Natural Join : It is the similar like Equi join except one of the duplicate columns is removed in the result table. The natural join is the most usually used form of join operation
What are the two distinct aspects to the implementation of associations? i) It is required to define data declarations which will enable details of actual links to be stored. I
Data Control The data control mostly refers to commands that permit system and data privileges to be passed to several users. These commands are usually available to database admi
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Mention the purpose of SID and SOD lines SID (Serial input data line): It is an input line by which the microprocessor accepts serial data. SOD (Serial output data line)
Index And Tree Structure Let us talk about the data structure that is used for creating indexes. Can we use Binary Search Tree (BST) as Indexes? Let us initial reconsider
Explain the database Planning Project ?
Design a generalization–specialization hierarchy for a motor-vehicle sales company. The company sells motorcycles, passenger cars, vans, and buses. Justify your placement of attrib
Explain the Project-Join normal form A relation R is in PJNF along with respect to a set of functional dependencies D if for all join dependencies of the outline *(R 1 , R 2 ,
how to write a in a text and load it on mysql
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