1. 1 Copyright © 2006, Oracle. All rights reserved. Introduction

2. Copyright © 2006, Oracle. All rights reserved. 1-2 Lesson Objectives After completing this lesson, you should be able to do the following: List the course objectives and explain the class structure Review the Oracle Database 10g architecture

3. Copyright © 2006, Oracle. All rights reserved. 1-3 Course Objectives In this course, you gain experience in: Using Recovery Manager (RMAN) for advanced backup and recovery Employing database monitoring practices for memory, performance, and storage Managing resources, job schedules, security, and globalization issues

4. Copyright © 2006, Oracle. All rights reserved. 1-4 Suggested Schedule 1: Introduction 2: Configuring RMAN 3: Using RMAN 4: Non-Critical Recovery 5: Recovery 6: Flashback 7: Corruption 8: Memory 9: Performance 10: Schema 11: Storage 12: ASM 13: Resources 14: Scheduler 15: Security 16: Globalization 17: Workshop Appendixes

5. Copyright © 2006, Oracle. All rights reserved. 1-5 What Is Covered in the DBAI Course 1.Introduction 2.Installation 3.DB Creation 4.Instance 5.Storage 6.Users 7.Schema 8.Data & Concurrency 9.Undo 10.Security 11.Network 12.Proactive Maintenance 13.Performance 14.Backup & Recovery Concepts 15.Backup 16.Recovery 17.Flashback 18.Moving Data

6. Copyright © 2006, Oracle. All rights reserved. 1-6 Course Examples: The HR Schema REGIONS REGION_ID (PK) REGION_NAME COUNTRIES COUNTRY_ID (PK) COUNTRY_NAME REGION_ID (FK) LOCATIONS LOCATION_ID (PK) STREET_ADDRESS POSTAL_CODE CITY STATE_PROVINCE COUNTRY_ID (FK) DEPARTMENTS DEPARTMENT_ID (PK) DEPARTMENT_NAME MANAGER_ID LOCATION_ID (FK) JOBS JOB_ID (PK) JOB_TITLE MIN_SALARY MAX_SALARY EMPLOYEES EMPLOYEE_ID (PK) FIRST_NAME LAST_NAME EMAIL PHONE_NUMBER HIRE_DATE JOB_ID (FK) SALARY COMMISION_PCT MANAGER_ID (FK) DEPARTMENT_ID (FK) JOB_HISTORY EMPLOYEE_ID (PK) START_DATE (PK) END_DATE JOB_ID (FK) DEPARTMENT_ID (FK) REGIONS COUNTRIES LOCATIONS DEPARTMENTS JOBS EMPLOYEES JOB_HISTORY

7. Copyright © 2006, Oracle. All rights reserved. 1-7 Oracle Database 10g: The Database for the Grid Automatic Storage Management Portable clusterware Real Application Clusters and automatic workload management Resource Manager Oracle Streams Centralized management with Enterprise Manager Grid Control Oracle Database 10g new self-management features

8. Copyright © 2006, Oracle. All rights reserved. 1-8 Database Architecture: Review Storage structures Memory structures Process structures Instance System Global Area (SGA) Background processes Database files

9. Copyright © 2006, Oracle. All rights reserved. 1-9 Oracle Memory Structures Java pool Database buffer cache Redo log buffer Shared pool Large pool (RMAN) SGA Streams pool Server process 1 PGA Server process 2 PGA Background process PGA

10. Copyright © 2006, Oracle. All rights reserved. 1-10 Oracle Memory Structures Full Notes Page

11. Copyright © 2006, Oracle. All rights reserved. 1-11 Oracle Processes System Monitor (SMON) : 필수 Database Writer (DBWn) : 필수 Check- point (CKPT) : 필수 LogWriter (LGWR) : 필수 Process Monitor (PMON) : 필수 Archiver (ARCn) : 옵션 Server process Server process Server process Server process System Global Area (SGA) Background processes

12. Copyright © 2006, Oracle. All rights reserved. 1-12 Reviewing Oracle Instance Management SGA Database Writer (DBWn) LogWriter (LGWR) Database buffer cache Redo log buffer 1 User process 2 Example: Starting a database instance Establishing a connection System Monitor (SMON) Process Monitor (PMON) Data files Redo log files Instance Server process 3

13. Copyright © 2006, Oracle. All rights reserved. 1-13 The user updates a row. Redo log files Reviewing Oracle Instance Management Instance SGA Database Writer (DBWn) Database buffer cache Redo log buffer Server process User process 4 10 7 6 5 8 Example: Processing a SQL statement Archiver (ARCn) 9 Checkpoint (CKPT) Data files Archive logs Control file LogWriter (LGWR)

14. Copyright © 2006, Oracle. All rights reserved. 1-14 Physical Database Structure Online redo log files Password file Parameter file Archive log files Control files Data files Alert and trace log files Backup files

15. Copyright © 2006, Oracle. All rights reserved. 1-15 Physical Database Structure Full Notes Page

16. Copyright © 2006, Oracle. All rights reserved. 1-16 Example: SQL> ALTER SYSTEM SET DB_CREATE_FILE_DEST = '/u01/oradata'; SQL> CREATE TABLESPACE tbs_1; Oracle Managed Files (OMF) Specify file operations in terms of database objects rather than file names. ParameterDescription DB_CREATE_FILE_DEST Defines the location of the default file system directory for data files and temporary files DB_CREATE_ONLINE_LOG_DEST_n Defines the location for redo log files and control file creation DB_RECOVERY_FILE_DEST Defines the location for RMAN backups

17. Copyright © 2006, Oracle. All rights reserved. 1-17 Logical and Physical Database Structures Database LogicalPhysical Tablespace Data file OS block Segment Extent Oracle data block Schema

18. Copyright © 2006, Oracle. All rights reserved. 1-18 Database Structures Full Notes Page

19. Copyright © 2006, Oracle. All rights reserved. 1-19 Database Architecture: Summary of Structural Components Memory structures –System Global Area (SGA): Database buffer cache, redo buffer, and various pools –Program Global Area (PGA) Process structures –User process and server process –Background processes: SMON, PMON, DBWn, CKPT, LGWR, ARCn, and so on Storage structures –Logical: Database, schema, tablespace, segment, extent, and Oracle block –Physical: Files for data, parameters, redo, and OS block

20. Copyright © 2006, Oracle. All rights reserved. 1-20 Summary In this lesson, you should have learned how to: List the course objectives Review the Oracle Database 10g architecture