Database Systems Book Overview

This textbook provides a detailed overview of database systems and applications, covering essential aspects of database modeling, design, languages, models, implementation, and related technologies.

This textbook is suitable for a one-semester or two-semester course on database systems at the junior, senior, or graduate level.

The seventh edition brings crucial updates and enhancements to the text, including a refined chapter organization and new information covering recent advances in database systems and big data.

The textbook's content is designed to be easily adaptable to individual instructor preferences. Instructors can choose to follow the new chapter order or stick with a different order from previous editions.

Two new chapters in the seventh edition introduce the concept of NOSQL databases (Chapter 24) and big data processing technologies like MapReduce and Hadoop (Chapter 25).

The textbook assumes readers have a fundamental understanding of basic programming and data-structure concepts. It also assumes basic knowledge of computer organization.

The book provides an in-depth and up-to-date presentation of the most important aspects of database systems and applications, including the fundamentals of database modeling and design, the languages and models provided by the database management systems, and database system implementation techniques.

The seventh edition incorporates a reorganization of the chapter ordering based on feedback from instructors who use the textbook.

A data model where data is organized into tables with rows and columns. Each table represents a specific entity, and the columns represent attributes of that entity.

A set of rules that ensure data integrity and consistency in a database. These rules define constraints that prevent invalid data from being entered or modified.

A language used to interact with relational databases. It allows users to define, manipulate, and retrieve data within the database.

A method of visually representing the relationships between different entities in a database. It uses symbols and lines to depict entities, attributes, and the connections between them.

A data model that extends the ER model by incorporating advanced concepts like inheritance, subclasses, and generalization. This allows for a more complex and detailed representation of data relationships.

A modeling language used for object-oriented software development. It can be used to create diagrams that represent the relationships between objects, classes, and other components of a system.

A set of operations used to manipulate data in relational algebra. These operations provide a formal foundation for querying and transforming data within a relational database.

A logical language for expressing queries in a relational database. It allows users to define conditions and criteria for retrieving specific data from tables.

A method of organizing records on disk in a specific order, allowing for efficient retrieval based on a key value.

A method of organizing records on disk without any specific order, providing flexibility but requiring sequential scans for retrieval.

A technique for organizing records on disk that uses a hash function to map keys to specific locations, enabling fast retrieval by key.

Designing a relational database schema from a conceptual ER/EER schema design.

Algorithms used for designing a relational database schema from a conceptual ER/EER schema design.

A data structure used to index records in a file, allowing for efficient searching, insertion, and deletion of records based on a key.

A variation of the B-Tree data structure where internal nodes only contain keys, while leaf nodes contain both keys and data records.

Programming techniques used to interact with databases.

An algorithm used to retrieve records from a file by applying a search condition to each record until the desired record is found.

A traditional SQL programming topic that involves embedding SQL statements directly into a programming language like C or Java.

A traditional SQL programming topic that involves constructing SQL statements dynamically at runtime, rather than writing them statically beforehand.

A technique for joining records from two files based on a common key, involving comparing records and identifying matches.

A traditional SQL programming topic that refers to an Application Programming Interface (API) that enables applications written in various programming languages to interact with databases.

A technique for estimating the number of records that will satisfy a given search condition, helping to optimize query processing.

A traditional SQL programming topic that refers to Java Database Connectivity, an API that allows Java applications to connect and interact with databases.

A traditional SQL programming topic that refers to a standard that defines how applications communicate with databases through command-line interfaces.

A database system is a collection of interrelated data, stored and managed under unified control.

The database approach is a way of managing data in a centralized and consistent way, eliminating redundancy and ensuring data integrity.

Relational database management systems (RDBMSs) are a popular type of database system that uses tables and relationships to represent data.

The entity-relationship model, or ER model, maps out how different real-world entities (like people or products) are related to each other within the database.

A logical design specifies how data is structured and organized, using a data model language.

Physical design deals with the details of how data is physically stored and accessed on the computer system.

Database design involves translating real-world information into a structured format, then storing it and making it accessible to users.

The database design is implemented in a commercial DBMS (like Oracle or MySQL), populated with real data, and then continuously maintained to reflect the state of the information world it represents.

An extended ER model that incorporates more complex features, such as inheritance and generalization.

A method of organizing data on disk for efficient retrieval, using structures like B-trees.

A type of database that stores data in a hierarchical or object-oriented structure, rather than tables.

A database management system that allows querying and managing data using XML, a standard for representing structured information.