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)

Row and column access control (RCAC)

RCAC is a data-security feature that limits data access to those users who have a real business need to access the data. This feature is also known as fine-grained access control (FGAC).

You can implement RCAC by using the following database objects:

  • Row permission: Specifies a row-access control rule for a specific table and describes what set of rows a user has access to, based on an SQL search condition
  • Column mask: Specifies a column-access control rule for a specific column in a table and describes what column values a user is permitted to see and under what conditions, based on an SQL case statement expression

Row permissions

A user with SECADM authority can create row permissions...