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Oracle 11g R1 Top Features for Developers & DBA’s

August 2008

Agenda• This is mean to be more of an open discussion

• No set time per topic - each topic has just enough info to spur questions and/or open a dialog – so talk

• Feel free to ask questions about other topics

• No cell phones with ringer turned on (use vibrate)• Email only during breaks under penalty of death

• 11g adoption may have been slow – but:– 11g R1 is now over one year old

– 11G R2 beta will be starting soon2

Focus• 11g has huge growth in functionality (install size,

resource consumption, time to create database, etc)

• Too many features to cover them all in few hours!!!

• Will concentrate on key ones you may encounter

• Don’t underestimate Oracle (don’t drink our cool aid)

• MS SQL Server 2008 (coming soon) is real threat

• Oracle may have to adjust to compete (lower price)3

Oracle vs. Toad Timeline

Oct ‘98

v5Initial Quest

release.Yahoo! Groups and

Toadsoft.com established.

June ‘99

V6.1Already has 70

distinct screens.

Feb ’00

V6.3Debugger, SQL

Modeler, Oracle 8 object support.

v6.5DBA Module.

April ‘01

v7.0Toad Reports.

Dec ‘01

v7.2Script

Manager, SQL*Loader

Wizard.

Oct ‘02

v7.4Project

Manager,QSR.

May ‘03

v7.5Team Coding,

Data Grid support for

advanced data types.

Nov ‘03

v7.6Session Browser,

new toolbars.

v8.0XML Support,

CodeXpert,Script Debugger.

Rebranded –Toad for Oracle

June ‘05July ‘04

v8.5JIT Debugging,

Citrix, RAC, enhanced 10g

support.

v8.6Re-designed

Modeler, M/D Brower,New Reporting Engine.

Oct ’05

Dec ‘00 Apr ‘02

v7.3HTML Schema

Generator, CMD Line Support.

Original Toad Freeware

Toad for Oracle Freeware Update July ‘05

v9.0Single Merged

Editor.Improved

CodeXpert integration.

ASM, ADDM, AWR Mgt

Oct ’06

v9.1Policy Manager.Action Recall.

Toad TipsVista support.

Jun ’07

v9.5Integration with

SQL Optimizer 7.2Debugger, Profiler,

Code Xpert enhancements.

StatsPack BrowserOracle 11g

support.

Nov ’07

v9.6Debugger into

Standard, Schema Browser merged with DB Browser, integration with QCTO and TDM,

Vulnerability Assessment in Health Check

Apr ’08

9iR2

10gR2 11gR19.2.0.8

10.2.0.4

Oracle Tech Net Opinion: www.oracle.com/technology/pub/articles/oracle-database-11g-top-features/index.html

5

Real Application Testing (RAT)

6

Look familiar?

Essentially Asynchronous Shareplex

$20K/CPU +++

Flash Back Transaction

21

SQL> select xid, start_scn, operation, table_name, undo_sqlfrom flashback_transaction_querywhere start_timestamp>=sysdate-1 and username='BERT' and table_owner='BERT';

XID START_SCN OPERATION TABLE_NAME UNDO_SQL---------------- ---------- ---------- ------------ --------------------------------------------------------------0200030052030000 475697 DELETE JUNK insert into "BERT"."JUNK"("C1","C2") values ('5','6');0200030052030000 475697 DELETE JUNK insert into "BERT"."JUNK"("C1","C2") values ('3','4');0200030052030000 475697 INSERT JUNK delete from "BERT"."JUNK" where ROWID = 'AAAD94AAAAAAChOAAD';0200030052030000 475697 INSERT JUNK delete from "BERT"."JUNK" where ROWID = 'AAAD94AAAAAAChOAAC';0200030052030000 475697 INSERT JUNK delete from "BERT"."JUNK" where ROWID = 'AAAD94AAAAAAChOAAB';0200030052030000 475697 INSERT JUNK delete from "BERT"."JUNK" where ROWID = 'AAAD94AAAAAAChOAAA';

SQL> select * from bert.junk;  C1 C2---------- ---------- 1 2 7 8 SQL> declare trans_arr XID_ARRAY;begin trans_arr := xid_array('0200030052030000','0200030052030000'); dbms_flashback.transaction_backout (numtxns => 1, xids => trans_arr, options => dbms_flashback.cascade);end;/ SQL> select * from bert.junk;  C1 C2---------- ---------- 1 2 3 4 5 6 7 8

Flash Back Data Archive

22

SQL> create tablespace flash_archivedatafile 'c:\oracle\oradata\ordb1\flash_archive.dbf' size 50M; Tablespace created SQL> create flashback archive default flash_archive tablespace flash_archive retention 30 day; Flashback archive created. SQL> create table bert.junk (c1 int, c2 int) flashback archive flash_archive; Table created.

This new feature offers the ability to retain the reciprocal UNDO information for critical data significantly beyond the point in time that it would be flushed out of the UNDO tablespace. Therefore, it’s now possible to hold onto these reciprocal transactions essentially indefinitely. Once this feature is enabled, all retained transaction history can be viewed, and this eliminates the cumbersome task of creating corresponding history tracking tables for critical transactional tables.

OEM Performance Charts for RAC

SQL Query Result Cache

The SQL query result cache is an area of memory in the Shared Global Area (SGA) that can retain the result sets that a query generates.

OCI Client Result Cache