Book Image

Oracle Database XE 11gR2 Jump Start Guide

By : Asif Momen
Book Image

Oracle Database XE 11gR2 Jump Start Guide

By: Asif Momen

Overview of this book

Oracle Database XE 11gR2 is an excellent beginner-level database and is a great platform to learn database concepts. "Oracle Database XE 11gR2 Jump Start Guide" helps you to install, administer, maintain, tune, back up and upgrade your Oracle Database Express Edition. The book also helps you to build custom database applications using Oracle Application Express.Using this book, you will be able to install Oracle Database XE on Windows/Linux operating system.This book helps you understand different database editions and it guides you through the installation procedure with the aid of screenshots. You will learn to interact with the database objects. You will gain a solid understanding of stored sub-programs which is followed by an introduction to Oracle Application Express (APEX). Solid database performance tuning strategies are also discussed in this book followed by backup and recovery scenarios. All in all, "Oracle Database XE 11gR2 Jump Start Guide" delivers everything that you should know to get started with Oracle Database administration.
Table of Contents (20 chapters)
Oracle Database XE 11gR2 Jump Start Guide
Credits
About the Author
Acknowledgement
About the Reviewers
www.PacktPub.com
Preface

Chapter 8. Managing Database and Database Storage

A man is but the product of his thoughts what he thinks, he becomes. - Mahatma Gandhi

This chapter provides background information on memory management in Oracle Database 11g XE and managing physical files related to the database. Oracle memory is of two types, namely System Global Area (SGA) and Process Global Area (PGA). SGA is a memory that is shared by all Oracle processes, while PGA is a private memory allocated to individual processes. These topics will be covered in this chapter in more detail. We will also explore the physical database structure along with the logical database structure. The topics covered in this chapter are as follows:

  • Memory structure

    • System Global Area

    • Process Global Area

  • Automatic Memory Management

  • Important background processes

  • Physical and logical database structures

    • Creating a tablespace

    • Adding datafiles to a tablespace

    • Dropping a tablespace

    • Viewing tablespace usage

  • Managing Flash Recovery Area

Memory structure

Oracle...