Book Image

IBM Db2 11.1 Certification Guide

By : Robert (Kent) Collins, Mohankumar Saraswatipura
Book Image

IBM Db2 11.1 Certification Guide

By: Robert (Kent) Collins, Mohankumar Saraswatipura

Overview of this book

IBM Db2 is a relational database management system (RDBMS) that helps you store, analyze, and retrieve data efficiently. This comprehensive book is designed to help you master all aspects of IBM Db2 database administration and prepare you to take and pass IBM's Certification Exams C2090-600. Building on years of extensive experience, the authors take you through all areas covered by the test. The book delves deep into each certification topic: Db2 server management, physical design, business rules implementation, activity monitoring, utilities, high availability, and security. IBM Db2 11.1 Certification Guide provides you with more than 150 practice questions and answers, simulating real certification examination questions. Each chapter includes an extensive set of practice questions along with carefully explained answers. This book will not just prepare you for the C2090-600 exam but also help you troubleshoot day-to-day database administration challenges.
Table of Contents (10 chapters)

Authentication and authorization

Authentication is the process of validating the identity of a user before allowing access to perform any operation on database objects. Db2 does not provide native authentication, so a security facility outside the database system, such as the operating system security facility or a security plug-in, is required.

Authorization is the process of evaluating the privileges that have been assigned to a user to determine what operations the user can perform on database objects. This is managed using a set of authorities and privileges within Db2. The following diagram shows an example of authentication and authorization within Db2:

Db2 authentication and authorization example

The authentication database manager configuration parameter specifies how and where the authentication of a user should take place. By default, it is set to SERVER. The authentication...