a0115 oracle database 10g administration workshop morebook vn 7723

All rights reserved.This documentation contains proprietary information of Oracle Corporation.. Government Agency of the Department of Defense, then it is delivered with Restricted Right

Oracle Database 10g:

Administration Workshop I Student Guide

D17090GC10

Edition 1.0

March 2004

D39126

®

Copyright © 2004, Oracle All rights reserved.

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Authors

Ric Van Dyke

Russ Lowenthal

Technical Contributors

and Reviewers

Donna Keesling

S Matt Taylor

Jean-Francois Verrier

Craig Hollister

Bob Bungenstock

Tony Woodell

Joel Goodman

John Watson

Dairy Chan

Martin Jensen

Janet Stern

Dr Sabine Teuber

Kyle Hailey

Christopher Lawless

Dominique Laugraud

Isabelle Marchand

Yi Lu

Editor

Elizabeth Treacy

Publisher

Jobi Varghese

1 Introduction

Objectives 1-2

Course Objectives 1-3

Oracle Products 1-4

Relational Database Systems 1-5

How the Data Is Organized 1-6

Integrity Constraints 1-7

Structured Query Language 1-8

Tasks of an Oracle Database Administrator 1-9 Summary 1-10

2 Installing Oracle Database 10g Software

Objectives 2-2

System Requirements 2-3

Optimal Flexible Architecture (OFA) 2-4 Using Optimal Flexible Architecture 2-5

Setting Environment Variables 2-7

Preinstallation Checks 2-9

Oracle Universal Installer 2-10

Inventory and UNIX Group Name 2-11

orainstRoot.sh 2-12

File Locations 2-14

Install Type 2-15

Prerequisite Checks 2-16

Starter Database 2-17

Configuration and Management 2-18

File Storage and Backup Recovery 2-19 Passwords and Summary 2-20

Installation 2-21

Configuration Assistants 2-22

Summary 2-24

Practice 2: Installing the Oracle Software 2-25

3 Creating an Oracle Database

Objectives 3-2

Database Architecture 3-3

Exploring the Storage Structure 3-4

Control Files 3-5

Redo Log Files 3-6

Tablespaces and Datafiles 3-7

Segments, Extents, and Blocks 3-8

Contents

i

Oracle Instance Management 3-9

Oracle Memory Structures 3-10

Oracle Processes 3-12

Data Dictionary 3-13

Database Control 3-14

Grid Control 3-15

Database Configuration Assistant (DBCA) Overview 3-16 Creating a Database 3-17

Database Identification 3-18

Management Options 3-19

Passwords and Storage 3-20

File Locations and Backup Recovery 3-21

File Location Variables 3-22

Content and Initialization Parameters 3-23

Database Storage 3-25

Creation Options and Create 3-26

Other Actions with DBCA 3-27

Summary 3-28

Practice 3: Creating an Oracle Database 3-29

4 Database Interfaces

Objectives 4-2

What Is SQL? 4-3

Using SQL 4-4

Enterprise Manager: Seeing the SQL 4-5

What Is SQL*Plus? 4-6

What Is iSQL*Plus? 4-7

Using iSQL*Plus 4-9

Describing Data 4-10

Querying Data 4-11

Sorting the Data 4-12

Joining Tables 4-13

Manipulating Data 4-15

Defining Data 4-16

Overview of Transactions 4-17

Transaction Control Statements 4-18

Locking Data 4-19

Other Statement Categories 4-20

What Is PL/SQL? 4-21

Example PL/SQL Block 4-22

Uses of PL/SQL 4-23

What Is Java? 4-24

Oracle and Java 4-25

What Is OCI? 4-26

Other APIs 4-27

Summary 4-29

Practice 4: Using SQL 4-30

5 Controlling the Database

Objectives 5-2

Starting and Stopping iSQL*Plus 5-3

Management Framework 5-4

Starting and Stopping Database Control 5-5

Accessing Database Control 5-6

SYSOPERand SYSDBA 5-7

Database Home Page 5-8

Changing the Listener Status 5-9

Startup and Shutdown 5-10

Starting Up a Database NOMOUNT 5-11

Starting Up a Database MOUNT 5-12

Starting Up a Database OPEN 5-13

Shutting Down the Database 5-14

SHUTDOWNOptions 5-15

Initialization Parameter Files 5-18

Viewing Initialization Parameters 5-19

Viewing the Alert Log 5-20

Summary 5-21

Practice 5: Controlling the Database 5-22

6 Storage Structures

Objectives 6-2

Tablespaces and Data Files 6-3

Space Management in Tablespaces 6-4

Creating a New Tablespace 6-5

Storage for Locally Managed Tablespaces 6-7 Tablespaces in the Preconfigured Database 6-9 Altering a Tablespace 6-11

Actions with Tablespaces 6-13

Dropping Tablespaces 6-15

Viewing Tablespace Information 6-16

Summary 6-17

Practice 6: Working with Tablespaces 6-18

iii

Practice 20: Database Recovery (continued)

b) The Help desk has received a call from a user complaining that they are unable to access the countries table in the HR application schema Check the table to see if there is a problem.

c) Troubleshoot and recover as necessary.

4 Recover from loss of a system/undo data file.

a) Why is recovery from the loss of a system data file or a data file belonging to an undo tablespace different from recovering a nonsystem or undo data file?

b) Run the SQL script $HOME/labs/lab20_04.sql This script deletes one of your system or undo data files.

SQL> @$HOME/labs/lab20_04.sql

c) The Help desk begins receiving calls saying that the database appears to be down Troubleshoot and recover as necessary.