1. How to Thrive as a DBA in an Oracle10g World
Speaker: George Trujillo, Trubix, Inc
Think Training,
Think Trubix

2. Objectives
Key Oracle10g features
Address future Oracle database directions
Discuss important skills sets for Oracle10g

3. Instructors are hand-selected from top consultants in North America.
Trubix Inc.
Incorporated in 1994.
Largest content provider of Oracle related courses in world. Over 110 related courses.
Instructors are hand-selected from top consultants in North America.
Specializing in advanced Oracle, Linux and Java solutions.
George Trujillo - 17 years Oracle consulting experience.

4. Oracle10g Environments are More Complex
Most Oracle9i DBAs are not prepared to support Oracle10g environments:
Web services
Java
XML
Application servers
LDAP and Internet environments
RAC, Data Guard, Advanced Queuing, Security
ASM

5. Oracle10g Key Areas
Greatly simplified administration in day to day tasks.
Enhancements to Oracle9i features
New tools and features
Enhancements to performance tuning
New backup and recovery features
New storage management features

6. Improved Administration Features
Simplified initialization parameters
Basic and advanced parameters
Tracking database features usage
Improved tracing
New and improved advisories
Enhancements to utilities
Server and threshold alerts
The advanced parameters are available for more advanced databases.

7. The OEM Central Console
The Oracle 10g OEM Central Console is a Java based web browser that supports the management of the Oracle ecosystem.
This Central Console can be used to manage all the Oracle 10g databases and Oracle 10g application servers.
The Central Console can be used to manage, monitor and tune the entire Oracle infrastructure.

8. The OEM Central Console

9. EM2GO supports Oracle Database 10g management with wireless PDAs.
Supports SSL.
Uses the Pocket PC Internet Browser
Communicates between the Console and the Management Service.

10. Big Tablespaces
Big tablespaces support extremely large tablespaces (4GB blocks) for VLDB environments.
They are designed for environments that contain Automatic Storage Management (ASM), logical volume managers or RAID.
An 8K block size big tablespace can support a 32 terabyte datafile. A 32K block big tablespace can support a 128 terabyte datafile.

11. Creating a Big Tablespace
Bigfile tablespaces make sense in the context of an enterprise disk volume management context. Thus, the DBA must use a proper RAID configuration with striping and mirroring for optimal performance.
Example first portion of bigfile tablespace create statement:
SQL > CREATE BIGFILE TABLESPACE big_data
DATAFILE '/u09/oradata/dev10g/bigdata01.dbf' SIZE 100G….

12. Moving Tablespaces Cross Platform
At version 10g the DBA now has the ability to port transportable tablespaces across OS platforms. This provides the DBA with great flexibility when working with an integrated environment.
This view displays which OS environments support this new feature.
SQL > COLUMN PLATFORM_NAME FORMAT A30
SQL> SELECT * FROM V$TRANSPORTABLE_PLATFORM;

13. The SQL Access Advisor
The SQL Access Advisor simplifies tuning SQL through the EM 10g browser based console.
The manual methods traditionally used by DBA’s are largely eliminated with this tool which allows a DBA to tune SQL running or drawn from the library cache or SQL from a tuning set created by the DBA.
The SQL Access Advisor recommends to the DBA indexes, materialized views etc to actually decrease what is known as the analyzed SQL workload according to the SQL Access Advisor.

14. SQL Access Advisor

15. SQL Tuning Advisor
The SQL Tuning Advisor tool is designed for optimizing SQL. The SQL Tuning Advisor:
Monitors inefficient SQL statements.
Evaluates resources (CPU, I/O, temporary space) consumed by these SQL statements.
Allows a DBA to tune SQL within the browser pages of the Oracle 10g database OEM console rather than via the command line only with utilities such as tkprof or SQL_TRACE.

16. Automatic Workload Repository
The Automatic Workload Repository (AWR) collects data similar to STATSPACK for self-tuning features.
Self-tuning features that use AWR:
SQL Tuning Advisor
Automatic Database Diagnostic Monitor
Undo advisor
Segment Advisor

17. Automatic Database Diagnostic Monitor
The Automatic Database Diagnostic Monitor (ADDM) monitors over 50 events.
The ADDM facilitates automatic configuration with:
Automatic Storage Management (ASM)
Automatic Memory Management (AMM)

18. ADDM Looks For Memory structure utilization CPU bottlenecks
Utilization (checkpoints, archiving, log files, …)
Concurrency
Top end SQL
I/O issues
High end PL/SQL
Hot segments

19. Automatic Memory Management
Automatic Memory Management supports the automatic tuning of the key memory areas of the SGA.

20. Automatic Maintenance Tasks (AMT)
The Automatic Maintenance Tasks allow DBAs to automate regular tasks with the Oracle Scheduler.

21. Automatic Tuning with Advisory Central

22. Scheduling Through EM

23. Data Pump
Data pump is a new utility for exporting (expdp) and importing (impdp) data.
The new binaries are expdp and impdp.
The utilities can be accessed using the 10g EM console web browser pages or the traditional CLI or command line interface.

24. Advantages of Data Pump
Supports restarting data pump jobs.
Sorts exporting/importing over the network.
Estimates space required for export.
Supports filters with INCLUDE and EXCLUDE.
Supports monitoring of current jobs.
Allows remapping of tablespaces.

25. Loading and Unloading Data
An external table can load data into a data file as part of creating an external table with a AS SELECT statement.
CREATE TABLE my_ext_tab
ORGANIZATION EXTERNAL
(TYPE ORACLE_DATAPUMP
DEFAULT DIRECTORY my_dir
LOCATION ('my_d.dmp') )
AS SELECT * FROM my_tab;

26. Automatic Storage Management
Automatic Storage Management (ASM) allows disks to be managed as a logical volume within a disk group.
I/O is balanced to all disks within the disk group.
An ASM instance manages the disk group.
ASM contains two background processes (ARB0, ARB1).
The database instance uses an ASMB process that communicates with the ASM. RBAL does a global open on the ASM disks.

27. Advantages of ASM
Improved performance by balanced I/O across disks in a disk group.
Simplifies data file and disks with disk groups.
Can eliminate the need for a volume manager.
Supports mirroring
Disks can be added and removed while the database is running.
Eliminates manual disk tuning.

28. Flashback technology
Flashback database
Flashback table
Flashback version query
Flashback drop
Flashback transaction query
Flashback row history
Flashback transaction history

29. Flashback Table
Flashback table restores a table or tables to a point in time without using backups.
Indexes, triggers and constraints are automatically maintained.

30. Recycle Bin
The recycle bin is a repository for dropped tables and the associated objects. Dependent objects include:
Indexes
Triggers
LOBS and LOB index segments
Nested tables

31. Database Infrastructure Administrator
DBAs are needing to support new environments
Web services
Application servers
Java and XML
Multi-tiered architectures

32. Oracle Enterprise Manager
OEM is for wimps
Central console management
Support for advanced features
Support for application server
Tuning and monitoring

33. Oracle10g Skills
Upcoming areas that Oracle DBAs with the necessary skills are going to be in demand:
64-bit architecture and Linux
Application servers
Multi-tiered architectures (Web services, XML, Java)
Advanced configurations (RAC, GRID, Data Guard, AQ)
Oracle10g storage management and ASM
Oracle10g Administration

34. Visit our web site at: www.trubix.com

35. Thank You for Attending!
George J. Trujillo, Jr.
Think Training,
Think Trubix