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)

Database maintenance utilities

Some of the data maintenance utilities available within DB2 are these:

    REORGCHK
    REORG
    RUNSTATS
    REBIND
    FLUSH PACKAGE CACHE
    ADMIN_CMD

The REORGCHK utility

This utility command can use be used to suggest tables and indexes that would benefit from reorganization. The basic command syntax for REORGCHK is this:

    REORGCHK
    <UPDATE STATISTICS | CURRENT STATISTICS>
    <ON TABLE USER |
        ON SCHEMA [SchemaName] |
        ON TABLE [USER | SYSTEM | ALL | [TableName]>

Consider the following:

  • SchemaName: Identifies the name to assign to a schema whose objects are to be analyzed to determine whether they must be re-organized
  • TableName: Identifies the name to...