Figure 3 shows an ER schema for a database that may be used to keep track of part of an University system. Map this schema into a relational schema, and specify all primary keys and foreign keys.

Q: Need dependency diagrams 2NF and 3NF database

A: Employee Table

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A:

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A: Given questions are multiple choice question so we provide both  explanation below.

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A: Required E-R diagram is mentioned below :

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Q: Write SQL statements to: 1. List ISBN, Title, Author of all books that include the word 'Database'…

A: 1. SELECT         Book.ISBN,         Book.Title,         Book.AuthorFROM        BookWHERE…

Q: The following Figure 2 shows an EER schema for a database that can be used to track sales at a car…

A: in this question given EER diagram and need to find relational models based on it

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Transaction Processing

Transaction processing is a computational style generally performed by server computers, which supports interactive applications (apps). Transaction processing is also known as information processing, which divides the work into indivisible and individual operations called transactions. The transaction is a set of tasks; a single task is considered as the minimum processing unit that cannot be divided again.