All of the Performance Tuning Features in Oracle SQL Developer, 2018 Edition

Copyright © 2014 Oracle and/or its affiliates. All rights reserved. |
SQLDevTune All the Things
Jeff Smith
Senior Principal Product Manager
Jeff.d.smith@oracle.com || @thatjeffsmith
Database Tools, Oracle Corp

Copyright © 2018, Oracle and/or its affiliates. All rights reserved. |
Not Just THAT SQLDev Guy…
• Database Development Tools team
• Product manager/story teller
• Corrupted my first database in 1999
• I bother help people online, everywhere
• Contact me for a free remote presentation for your group/company
– Jeff.d.smith@oracle.com
– @thatjeffsmith
– https://www.thatjeffsmith.com

Copyright © 2016, Oracle and/or its affiliates. All rights reserved. |
thatJeffSmith on
• 60+ Videos
• Feature demos
• Tips & Tricks
• Short & Long Form
– SQL Developer
– SQLcl
– Data Modeler
– ORDS

Copyright © 2017, Oracle and/or its affiliates. All rights reserved.
4
SQL Developer Snapshot
Time Tested
Launched in
2005
An Industry Standard
5M+ Oracle DBAs
& Developers
Always Improving
Quarterly
Releases
4

Copyright © 2017, Oracle and/or its affiliates. All rights reserved.
5
SQL Developer Snapshot
Time Tested
Launched in
2005
An Industry Standard
5M+ Oracle DBAs
& Developers
Always Improving
Quarterly
Releases
4


 Top 15 Download on OTN
 Telling Your Friends 
5,000,000+

Project Raptor
 Early Adopter on OTN
2005
1.1
 File Based PL/SQL editing
 Reports
 Ships with 11gR1
1.5.x
 Localizations -
Japanese, Spanish,
Italian, German, French,
Portuguese, Chinese, &
Koreans
SQLDev v1.0
 SQL Worksheet
 Procedure Editor
 The world takes notice!
1.5
 Schema Copy/Diff/Export
 Thick connections
 Versioning
 TimesTen
2.1
 Unit Testing
 Data Modeler Viewer
 Unshared SQL Worksheets
2007 201020092006
3.0
 Full Data Modeler
 View > DBA
 SQL Tuning Advisor
 Query Builder
2008 2011 2012
3.1
 New Database DIFF
 PDF Reports
 RMAN
 Data Pump
2013
3.2
 APEX Listener / ORDS
Support
 Database 12c Support
 Schema Service Support
4.0
 Java 7
 ASH/AWR/ADDM
 Color Coded Connections
 Command line Interface
4.0.3
 Optimized Code Insight
 Oracle Big Data Appliance
2014 2015 2016
4.1
 ORDS Included/Full GUI
 instance Viewer
 SQLcl
 Copy PDB to DBaaS
 Larry live demos PDB relocate @ OOW
4.2
 Real Time SQL Monitoring
 Top SQL Report
 Formatter & Other Editor Enhancements
 Easier RESTful Services Development
2017
SQLcl
 New CLI
 Modern SQL*Plus
Release History

2017
2017.2
 Bug Fixes
 Sharding
 Data Guard
17.3 & 17.4
 Bug Fixes
Quarterly Releases!!!
2018
Release History
18.1
 Autonomous Data Warehouse Support
 New Welcome Screen/Connections
 SQL Injection Detection
 PL/Scope SQL Statement Support
 Better Formatting
18.2/3
 PL/SQL Injection
Detection
 Cloud data Loads
 SQL Developer
Web

I’m Not Performance Expert/Guru/Professional
I’m Your Tools Valet

Let’s Go!

Strategy and Analysis
Relational
Database Design
Data Type
Star Schema Physical
Multidimensional
ERD DFD
Logical
Reporting
Import Models
Domains
Performance Problems Generally Start Here

Design – No Keys?

Keys & Indexes?

Design Rules – Who’s Breaking Them?

This is just the WORST THING EVER

Start the Design Conversation EARLY
And Make it Easy to Communicate and Share!

I love it when a plan comes
together!!

Queries and Plans
Have a bad query…
 See the plan (explain, dbms_x, v$sql_plan)
 Compare plans
 AutoTrace (HotSpots)
 Configuring Display (columns)
 Links and Hints

AutoTrace
 Grab session stats
 Execute Query
 Grab session stats
 Show Plan and Stats
 After 1 minute, we’ll
start showing rolling stats

1. Nodes where cardinality estimation is wrong as witnessed by collected runtime
statistics. The node with maximum discrepancy is formally a hotspot. One course of
action for performance analyst to follow is adjusting cardinality estimation (e.g. with a
hint), thus influencing the optimizer to choose a different plan.
2. Nodes where the execution have spent bulk of the time. Formally, we take cumulative
run time of a node (v$sql_plan_statistics.last_elapsed_time) and subtract cumulative run
time of it's children.
Autotrace HotSpots

Autotrace HotSpots

Get Predicates (and notes) in Your Plans

GET:
 Predicates
 Other XML
 Last Output Rows

 enable things you want to see in
your plans, like
QBLOCK_NAME
or change their labels

V$SQL_PLAN – click dropdown to get cached plans

Suggest Hints
Are You Smarter than the Optimizer?

DBMS_XPLAN – click dropdown to get PKG()

SQL Tuning Advisor Tasks
Licensing:
 Warnings – you will
know when you are
going to use a Tuning
or Diagnostic Pack
Feature
 Control Availability
for each database
connection in the
preferences

Automatic SQL Tuning Advisor – Build a Report

Real Time SQL Monitoring
Web View:
 No flash!
 Export to HTML
 Improvements
coming in 18.4/19.1

Monitor Sessions
It’s a Report, so you can:
 change the content
 Add Actions

Trace Files
Yes, we have an editor for those, but…
 Experts say you don’t need to look in TRC files
 They can get quite big and nasty – stick with the Plans

Project Raptor
 Early Adopter on OTN
2005
1.1
 File Based PL/SQL editing
 Reports
1.5.x
 Localizations -
Japanese, Spanish,
Italian, German, French,
Portuguese, Chinese, &
Koreans
SQLDev v1.0
 SQL Worksheet
 Procedure Editor
 The world takes notice!
1.5
 Schema Copy/Diff/Export
 Thick connections
 Versioning
 TimesTen
2.1
 Unit Testing
 Data Modeler Viewer
 Unshared SQL Worksheets
2007 201020092006
3.0
 Full Data Modeler
 View > DBA
 SQL Tuning Advisor
 Query Builder
2008 2011 2012
3.1
 New Database DIFF
 PDF Reports
 RMAN
 Data Pump
2013
3.2
 APEX Listener / ORDS
Support
 Database 12c Support
 Schema Service Support
4.0
 Java 7
 ASH/AWR/ADDM
 Color Coded Connections
 Command line Interface
4.0.3
 Optimized Code Insight
 Oracle Big Data Appliance
2014 2015 2016
4.1
 ORDS Included/Full GUI
 instance Viewer
 SQLcl
 Copy PDB to DBaaS
 Larry live demos PDB relocate @ OOW
4.2
 Real Time SQL Monitoring
 Top SQL Report
 Formatter & Other Editor Enhancements
 Easier RESTful Services Development
2017
SQLcl
 New CLI
 Modern SQL*Plus
Release History
SQLDev 3.1
DBA PANEL
IS BORN!!!

DBA Panel Pages
 ASH/AWR
 Snapshots
 Baselines
 Instance Viewer

• Accessed from the View menu
• Add Existing Connections
• Intended for HIGHLY privileged users
DBA Panel Pages

ASH/AWR

Manage snapshots, baselines, generate reports & compares

Instance Viewer – real time performance report
Doesn’t Require:
 agents
 DB objects to install
 expensive views
 alerts
 history
 $$$

TopSQL Report

Wait Events Drill Down report does require Diagnostic Pack…data from
gv$active_session_history ash, gv$sqlarea sa
Want to see more details? Double Click for a report

How does SQLDev get the Perf Data?
See ALL the SQL
 View > Log
 Statements Panel
 Elapsed time & Bind
parameter values

Thanks!
All My Stuff:
 blogs on thatjeffsmith.com
 videos on youtube
 slides on SlideShare

All of the Performance Tuning Features in Oracle SQL Developer, 2018 Edition

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All of the Performance Tuning Features in Oracle SQL Developer, 2018 Edition