Question

1. Briefly describe the theoretical foundations of Pelational database Systems​

Answer 1

Answer:

Many references to the twelve rules include a thirteenth rule – or rule zero: A relational database management system (DBMS) must manage its stored data using only its relational capabilities.

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Introduction to Relational Databases – Part 1: Theoretical Foundation.

Formal Name Common Name Also Known As

Attribute Column Field

Answer 2

Answer:

Here is your Answer

Explanation:

An important aspect of most every business is record keeping. In our information society, this has become an important aspect of business, and much of the world’s computing power is dedicated to maintaining and using databases.

Databases of all kinds pervade almost every business. All kinds of data, from emails and contact information to financial data and records of sales, are stored in some form of a database. The quest is on for meaningful storage of less-structured information, such as subject knowledge.

This is the first of a two-part article that will provide an introduction to relational databases and the SQL language. This first part describes some of the key elements of the technology with an emphasis on database normalization. The second part will describe a less theoretical approach to database design, as well as provide an introduction to the SQL language.