Fundamentals of Database Systems (7th Edition) by Ramez Elmasri, Shamkant B. Navathe

By Ramez Elmasri, Shamkant B. Navathe

This e-book introduces the elemental recommendations valuable for designing, utilizing, and imposing database structures and database functions. Our presentation stresses the basics of database modeling and layout, the languages and versions supplied through the database administration structures, and database procedure implementation techniques.

The booklet is intended for use as a textbook for a one- or two-semester direction in database platforms on the junior, senior, or graduate point, and as a reference e-book. The target is to supply an in-depth and up to date presentation of crucial points of database structures and purposes, and similar applied sciences. it really is assumed that readers are acquainted with simple programming and data-structuring suggestions and they have had a few publicity to the fundamentals of computing device association.

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Operators and maintenance personnel (system administration personnel) are responsible for the actual running and maintenance of the hardware and software environment for the database system. Although these categories of workers behind the scene are instrumental in making the database system available to end users, they typically do not use the database contents for their own purposes. 6 Advantages of Using the DBMS Approach In this section we discuss some additional advantages of using a DBMS and the capabilities that a good DBMS should possess.

Design of a new application for an existing database or design of a brand new database starts off with a phase called requirements specification and analysis. These requirements are documented in detail and transformed into a conceptual design that can be represented and manipulated using some computerized tools so that it can be easily maintained, modified, and transformed into a database implementation. ) The design is then translated to a logical design that can be expressed in a data model implemented in a commercial DBMS.

1 Introduction constitute a database. However, the common use of the term database is usually more restricted. A database has the following implicit properties: ■ ■ ■ A database represents some aspect of the real world, sometimes called the miniworld or the universe of discourse (UoD). Changes to the miniworld are reflected in the database. A database is a logically coherent collection of data with some inherent meaning. A random assortment of data cannot correctly be referred to as a database.

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