Enviar búsqueda
Cargar
SQL TUNING 101
•
1 recomendación
•
1,065 vistas
Alex Zaballa
Seguir
Presentation for the Oracle Code
Leer menos
Leer más
Tecnología
Denunciar
Compartir
Denunciar
Compartir
1 de 152
Recomendados
SQL TUNING 101
SQL TUNING 101
Alex Zaballa
Moving your Oracle Databases to the Oracle Cloud
Moving your Oracle Databases to the Oracle Cloud
Alex Zaballa
Engineered Systems: Environment-as-a-Service Demonstration
Engineered Systems: Environment-as-a-Service Demonstration
Enkitec
OTN TOUR 2016 - Oracle Database 12c - The Best Oracle Database 12c Tuning Fea...
OTN TOUR 2016 - Oracle Database 12c - The Best Oracle Database 12c Tuning Fea...
Alex Zaballa
Moving your Oracle Databases to the Oracle Cloud
Moving your Oracle Databases to the Oracle Cloud
Alex Zaballa
Using Angular JS in APEX
Using Angular JS in APEX
Enkitec
BGOUG 2014: Developing Using MySQL
BGOUG 2014: Developing Using MySQL
Georgi Kodinov
SQL Server Upgrade and Consolidation - Methodology and Approach
SQL Server Upgrade and Consolidation - Methodology and Approach
Indra Dharmawan
Más contenido relacionado
La actualidad más candente
COUG_AAbate_Oracle_Database_12c_New_Features
COUG_AAbate_Oracle_Database_12c_New_Features
Alfredo Abate
Haute Disponibilité et Reprise sur incidents en SharePoint 2013 avec Sql Serv...
Haute Disponibilité et Reprise sur incidents en SharePoint 2013 avec Sql Serv...
serge luca
Oracle Management Cloud - introduction, overview and getting started (AMIS, 2...
Oracle Management Cloud - introduction, overview and getting started (AMIS, 2...
Lucas Jellema
#GeodeSummit - Apex & Geode: In-memory streaming, storage & analytics
#GeodeSummit - Apex & Geode: In-memory streaming, storage & analytics
PivotalOpenSourceHub
Data Estate Modernization
Data Estate Modernization
Indra Dharmawan
EBS on Oracle Cloud
EBS on Oracle Cloud
vasuballa
Change Management for Oracle Database with SQLcl
Change Management for Oracle Database with SQLcl
Jeff Smith
REST Enabling your Oracle Database (2018 Update)
REST Enabling your Oracle Database (2018 Update)
Jeff Smith
Migration to Modern SQL Server Platform
Migration to Modern SQL Server Platform
Indra Dharmawan
Whats new in oracle orachk & exachk 12.2.0.1.4
Whats new in oracle orachk & exachk 12.2.0.1.4
Gareth Chapman
OOW16 - Oracle Enterprise Manager 13c Cloud Control for Managing Oracle E-Bus...
OOW16 - Oracle Enterprise Manager 13c Cloud Control for Managing Oracle E-Bus...
vasuballa
Oasis – data analysis platform for enterprise
Oasis – data analysis platform for enterprise
LINE Corporation
QA standup - workload analysis
QA standup - workload analysis
Serghei Radov
Monitoring Always On Avaliability Group
Monitoring Always On Avaliability Group
Sourabh Agarwal
Accumulo Summit 2016: Effective Testing of Apache Accumulo Iterators
Accumulo Summit 2016: Effective Testing of Apache Accumulo Iterators
Accumulo Summit
Oracle SQL Developer: 3 Features You're Not Using But Should Be
Oracle SQL Developer: 3 Features You're Not Using But Should Be
Jeff Smith
Writing Apache Spark and Apache Flink Applications Using Apache Bahir
Writing Apache Spark and Apache Flink Applications Using Apache Bahir
Luciano Resende
SparkOscope: Enabling Apache Spark Optimization through Cross Stack Monitorin...
SparkOscope: Enabling Apache Spark Optimization through Cross Stack Monitorin...
Databricks
Sql 2012 Upgrade Readiness Guide
Sql 2012 Upgrade Readiness Guide
PARIKSHIT SAVJANI
How to Upgrade Hundreds or Thousands of Databases
How to Upgrade Hundreds or Thousands of Databases
DLT Solutions
La actualidad más candente
(20)
COUG_AAbate_Oracle_Database_12c_New_Features
COUG_AAbate_Oracle_Database_12c_New_Features
Haute Disponibilité et Reprise sur incidents en SharePoint 2013 avec Sql Serv...
Haute Disponibilité et Reprise sur incidents en SharePoint 2013 avec Sql Serv...
Oracle Management Cloud - introduction, overview and getting started (AMIS, 2...
Oracle Management Cloud - introduction, overview and getting started (AMIS, 2...
#GeodeSummit - Apex & Geode: In-memory streaming, storage & analytics
#GeodeSummit - Apex & Geode: In-memory streaming, storage & analytics
Data Estate Modernization
Data Estate Modernization
EBS on Oracle Cloud
EBS on Oracle Cloud
Change Management for Oracle Database with SQLcl
Change Management for Oracle Database with SQLcl
REST Enabling your Oracle Database (2018 Update)
REST Enabling your Oracle Database (2018 Update)
Migration to Modern SQL Server Platform
Migration to Modern SQL Server Platform
Whats new in oracle orachk & exachk 12.2.0.1.4
Whats new in oracle orachk & exachk 12.2.0.1.4
OOW16 - Oracle Enterprise Manager 13c Cloud Control for Managing Oracle E-Bus...
OOW16 - Oracle Enterprise Manager 13c Cloud Control for Managing Oracle E-Bus...
Oasis – data analysis platform for enterprise
Oasis – data analysis platform for enterprise
QA standup - workload analysis
QA standup - workload analysis
Monitoring Always On Avaliability Group
Monitoring Always On Avaliability Group
Accumulo Summit 2016: Effective Testing of Apache Accumulo Iterators
Accumulo Summit 2016: Effective Testing of Apache Accumulo Iterators
Oracle SQL Developer: 3 Features You're Not Using But Should Be
Oracle SQL Developer: 3 Features You're Not Using But Should Be
Writing Apache Spark and Apache Flink Applications Using Apache Bahir
Writing Apache Spark and Apache Flink Applications Using Apache Bahir
SparkOscope: Enabling Apache Spark Optimization through Cross Stack Monitorin...
SparkOscope: Enabling Apache Spark Optimization through Cross Stack Monitorin...
Sql 2012 Upgrade Readiness Guide
Sql 2012 Upgrade Readiness Guide
How to Upgrade Hundreds or Thousands of Databases
How to Upgrade Hundreds or Thousands of Databases
Similar a SQL TUNING 101
DBA Commands and Concepts That Every Developer Should Know
DBA Commands and Concepts That Every Developer Should Know
Alex Zaballa
DBA Commands and Concepts That Every Developer Should Know
DBA Commands and Concepts That Every Developer Should Know
Alex Zaballa
LET’S GET STARTED WITH ORACLE DATABASE CLOUD
LET’S GET STARTED WITH ORACLE DATABASE CLOUD
Alex Zaballa
Enterprise manager 13c
Enterprise manager 13c
MarketingArrowECS_CZ
OEM13c_PPT.pptx
OEM13c_PPT.pptx
SDPL Technologies
EXAchk for Exadata Presentation
EXAchk for Exadata Presentation
Sandesh Rao
MySQL Enterprise Monitor
MySQL Enterprise Monitor
Mario Beck
Migrating Oracle Databases from AWS to OCI
Migrating Oracle Databases from AWS to OCI
Alex Zaballa
The Oracle Autonomous Database
The Oracle Autonomous Database
Connor McDonald
Oracle Management Cloud - HybridCloud Café - May 2016
Oracle Management Cloud - HybridCloud Café - May 2016
Bastien Leblanc
Oracle Cloud Café hybrid Cloud 19 mai 2016
Oracle Cloud Café hybrid Cloud 19 mai 2016
Sorathaya Sirimanotham
C5 journey to_the_cloud_with_oracle_sparc
C5 journey to_the_cloud_with_oracle_sparc
Dr. Wilfred Lin (Ph.D.)
Exploring All options to move your Oracle Databases to the Oracle Cloud
Exploring All options to move your Oracle Databases to the Oracle Cloud
Alex Zaballa
Moving Your Oracle Databases To The Oracle Cloud
Moving Your Oracle Databases To The Oracle Cloud
Alex Zaballa
Accenture at LiveWorx: Making Business Flow. Projects are the Anti-Patterns
Accenture at LiveWorx: Making Business Flow. Projects are the Anti-Patterns
accenture
Explain the explain_plan
Explain the explain_plan
Maria Colgan
MySQL in oracle_environments(Part 2): MySQL Enterprise Monitor & Oracle Enter...
MySQL in oracle_environments(Part 2): MySQL Enterprise Monitor & Oracle Enter...
OracleMySQL
AWR, ASH with EM13 at HotSos 2016
AWR, ASH with EM13 at HotSos 2016
Kellyn Pot'Vin-Gorman
C4 optimizing your_application_infrastructure
C4 optimizing your_application_infrastructure
Dr. Wilfred Lin (Ph.D.)
New Features in Oracle ORAchk & EXAchk 12.2.0.1.1
New Features in Oracle ORAchk & EXAchk 12.2.0.1.1
Gareth Chapman
Similar a SQL TUNING 101
(20)
DBA Commands and Concepts That Every Developer Should Know
DBA Commands and Concepts That Every Developer Should Know
DBA Commands and Concepts That Every Developer Should Know
DBA Commands and Concepts That Every Developer Should Know
LET’S GET STARTED WITH ORACLE DATABASE CLOUD
LET’S GET STARTED WITH ORACLE DATABASE CLOUD
Enterprise manager 13c
Enterprise manager 13c
OEM13c_PPT.pptx
OEM13c_PPT.pptx
EXAchk for Exadata Presentation
EXAchk for Exadata Presentation
MySQL Enterprise Monitor
MySQL Enterprise Monitor
Migrating Oracle Databases from AWS to OCI
Migrating Oracle Databases from AWS to OCI
The Oracle Autonomous Database
The Oracle Autonomous Database
Oracle Management Cloud - HybridCloud Café - May 2016
Oracle Management Cloud - HybridCloud Café - May 2016
Oracle Cloud Café hybrid Cloud 19 mai 2016
Oracle Cloud Café hybrid Cloud 19 mai 2016
C5 journey to_the_cloud_with_oracle_sparc
C5 journey to_the_cloud_with_oracle_sparc
Exploring All options to move your Oracle Databases to the Oracle Cloud
Exploring All options to move your Oracle Databases to the Oracle Cloud
Moving Your Oracle Databases To The Oracle Cloud
Moving Your Oracle Databases To The Oracle Cloud
Accenture at LiveWorx: Making Business Flow. Projects are the Anti-Patterns
Accenture at LiveWorx: Making Business Flow. Projects are the Anti-Patterns
Explain the explain_plan
Explain the explain_plan
MySQL in oracle_environments(Part 2): MySQL Enterprise Monitor & Oracle Enter...
MySQL in oracle_environments(Part 2): MySQL Enterprise Monitor & Oracle Enter...
AWR, ASH with EM13 at HotSos 2016
AWR, ASH with EM13 at HotSos 2016
C4 optimizing your_application_infrastructure
C4 optimizing your_application_infrastructure
New Features in Oracle ORAchk & EXAchk 12.2.0.1.1
New Features in Oracle ORAchk & EXAchk 12.2.0.1.1
Más de Alex Zaballa
DBA Commands and Concepts That Every Developer Should Know - Part 2
DBA Commands and Concepts That Every Developer Should Know - Part 2
Alex Zaballa
Oracle Database 12c - New Features for Developers and DBAs
Oracle Database 12c - New Features for Developers and DBAs
Alex Zaballa
DBA Brasil 1.0 - DBA Commands and Concepts That Every Developer Should Know
DBA Brasil 1.0 - DBA Commands and Concepts That Every Developer Should Know
Alex Zaballa
Os melhores recursos novos do Oracle Database 12c para desenvolvedores e DBAs...
Os melhores recursos novos do Oracle Database 12c para desenvolvedores e DBAs...
Alex Zaballa
OTN TOUR 2016 - DBA Commands and Concepts That Every Developer Should Know
OTN TOUR 2016 - DBA Commands and Concepts That Every Developer Should Know
Alex Zaballa
OTN TOUR 2016 - Oracle Database 12c - The Best Oracle Database 12c Tuning Fea...
OTN TOUR 2016 - Oracle Database 12c - The Best Oracle Database 12c Tuning Fea...
Alex Zaballa
OTN TOUR 2016 - Oracle Database 12c - The Best Oracle Database 12c New Featur...
OTN TOUR 2016 - Oracle Database 12c - The Best Oracle Database 12c New Featur...
Alex Zaballa
OOW16 - Oracle Database 12c - The Best Oracle Database 12c New Features for D...
OOW16 - Oracle Database 12c - The Best Oracle Database 12c New Features for D...
Alex Zaballa
Oracle Database 12c Release 2 - New Features On Oracle Database Exadata Expre...
Oracle Database 12c Release 2 - New Features On Oracle Database Exadata Expre...
Alex Zaballa
Oracle SQL Tuning
Oracle SQL Tuning
Alex Zaballa
DBA Brasil 1.0 - DBA Commands and Concepts That Every Developer Should Know
DBA Brasil 1.0 - DBA Commands and Concepts That Every Developer Should Know
Alex Zaballa
Oracle Database 12c - The Best Oracle Database 12c Tuning Features for Develo...
Oracle Database 12c - The Best Oracle Database 12c Tuning Features for Develo...
Alex Zaballa
DBA Commands and Concepts That Every Developer Should Know
DBA Commands and Concepts That Every Developer Should Know
Alex Zaballa
Oracle Data Redaction
Oracle Data Redaction
Alex Zaballa
Oracle Database 12c - Novas Características para DBAs e Desenvolvedores
Oracle Database 12c - Novas Características para DBAs e Desenvolvedores
Alex Zaballa
Oracle Data Redaction - EOUC
Oracle Data Redaction - EOUC
Alex Zaballa
Oracle Database 12.1.0.2 New Features
Oracle Database 12.1.0.2 New Features
Alex Zaballa
Oracle Database 12c - Data Redaction
Oracle Database 12c - Data Redaction
Alex Zaballa
Oracle Database 12c - Novas Características para DBAs e Desenvolvedores - GUO...
Oracle Database 12c - Novas Características para DBAs e Desenvolvedores - GUO...
Alex Zaballa
Oracle Data redaction - GUOB - OTN TOUR LA - 2015
Oracle Data redaction - GUOB - OTN TOUR LA - 2015
Alex Zaballa
Más de Alex Zaballa
(20)
DBA Commands and Concepts That Every Developer Should Know - Part 2
DBA Commands and Concepts That Every Developer Should Know - Part 2
Oracle Database 12c - New Features for Developers and DBAs
Oracle Database 12c - New Features for Developers and DBAs
DBA Brasil 1.0 - DBA Commands and Concepts That Every Developer Should Know
DBA Brasil 1.0 - DBA Commands and Concepts That Every Developer Should Know
Os melhores recursos novos do Oracle Database 12c para desenvolvedores e DBAs...
Os melhores recursos novos do Oracle Database 12c para desenvolvedores e DBAs...
OTN TOUR 2016 - DBA Commands and Concepts That Every Developer Should Know
OTN TOUR 2016 - DBA Commands and Concepts That Every Developer Should Know
OTN TOUR 2016 - Oracle Database 12c - The Best Oracle Database 12c Tuning Fea...
OTN TOUR 2016 - Oracle Database 12c - The Best Oracle Database 12c Tuning Fea...
OTN TOUR 2016 - Oracle Database 12c - The Best Oracle Database 12c New Featur...
OTN TOUR 2016 - Oracle Database 12c - The Best Oracle Database 12c New Featur...
OOW16 - Oracle Database 12c - The Best Oracle Database 12c New Features for D...
OOW16 - Oracle Database 12c - The Best Oracle Database 12c New Features for D...
Oracle Database 12c Release 2 - New Features On Oracle Database Exadata Expre...
Oracle Database 12c Release 2 - New Features On Oracle Database Exadata Expre...
Oracle SQL Tuning
Oracle SQL Tuning
DBA Brasil 1.0 - DBA Commands and Concepts That Every Developer Should Know
DBA Brasil 1.0 - DBA Commands and Concepts That Every Developer Should Know
Oracle Database 12c - The Best Oracle Database 12c Tuning Features for Develo...
Oracle Database 12c - The Best Oracle Database 12c Tuning Features for Develo...
DBA Commands and Concepts That Every Developer Should Know
DBA Commands and Concepts That Every Developer Should Know
Oracle Data Redaction
Oracle Data Redaction
Oracle Database 12c - Novas Características para DBAs e Desenvolvedores
Oracle Database 12c - Novas Características para DBAs e Desenvolvedores
Oracle Data Redaction - EOUC
Oracle Data Redaction - EOUC
Oracle Database 12.1.0.2 New Features
Oracle Database 12.1.0.2 New Features
Oracle Database 12c - Data Redaction
Oracle Database 12c - Data Redaction
Oracle Database 12c - Novas Características para DBAs e Desenvolvedores - GUO...
Oracle Database 12c - Novas Características para DBAs e Desenvolvedores - GUO...
Oracle Data redaction - GUOB - OTN TOUR LA - 2015
Oracle Data redaction - GUOB - OTN TOUR LA - 2015
Último
Salesforce Miami User Group Event - 1st Quarter 2024
Salesforce Miami User Group Event - 1st Quarter 2024
SkyPlanner
UiPath Studio Web workshop series - Day 8
UiPath Studio Web workshop series - Day 8
DianaGray10
201610817 - edge part1
201610817 - edge part1
Jamie (Taka) Wang
UiPath Solutions Management Preview - Northern CA Chapter - March 22.pdf
UiPath Solutions Management Preview - Northern CA Chapter - March 22.pdf
DianaGray10
20230202 - Introduction to tis-py
20230202 - Introduction to tis-py
Jamie (Taka) Wang
IaC & GitOps in a Nutshell - a FridayInANuthshell Episode.pdf
IaC & GitOps in a Nutshell - a FridayInANuthshell Episode.pdf
Daniel Santiago Silva Capera
Computer 10: Lesson 10 - Online Crimes and Hazards
Computer 10: Lesson 10 - Online Crimes and Hazards
Seth Reyes
The Data Metaverse: Unpacking the Roles, Use Cases, and Tech Trends in Data a...
The Data Metaverse: Unpacking the Roles, Use Cases, and Tech Trends in Data a...
Aggregage
UiPath Studio Web workshop series - Day 6
UiPath Studio Web workshop series - Day 6
DianaGray10
AI You Can Trust - Ensuring Success with Data Integrity Webinar
AI You Can Trust - Ensuring Success with Data Integrity Webinar
Precisely
Cybersecurity Workshop #1.pptx
Cybersecurity Workshop #1.pptx
GDSC PJATK
Introduction to Matsuo Laboratory (ENG).pptx
Introduction to Matsuo Laboratory (ENG).pptx
Matsuo Lab
Nanopower In Semiconductor Industry.pdf
Nanopower In Semiconductor Industry.pdf
Pedro Manuel
Linked Data in Production: Moving Beyond Ontologies
Linked Data in Production: Moving Beyond Ontologies
David Newbury
9 Steps For Building Winning Founding Team
9 Steps For Building Winning Founding Team
Adam Moalla
How Accurate are Carbon Emissions Projections?
How Accurate are Carbon Emissions Projections?
IES VE
Videogame localization & technology_ how to enhance the power of translation.pdf
Videogame localization & technology_ how to enhance the power of translation.pdf
infogdgmi
Basic Building Blocks of Internet of Things.
Basic Building Blocks of Internet of Things.
YounusS2
VoIP Service and Marketing using Odoo and Asterisk PBX
VoIP Service and Marketing using Odoo and Asterisk PBX
Tarek Kalaji
KubeConEU24-Monitoring Kubernetes and Cloud Spend with OpenCost
KubeConEU24-Monitoring Kubernetes and Cloud Spend with OpenCost
Matt Ray
Último
(20)
Salesforce Miami User Group Event - 1st Quarter 2024
Salesforce Miami User Group Event - 1st Quarter 2024
UiPath Studio Web workshop series - Day 8
UiPath Studio Web workshop series - Day 8
201610817 - edge part1
201610817 - edge part1
UiPath Solutions Management Preview - Northern CA Chapter - March 22.pdf
UiPath Solutions Management Preview - Northern CA Chapter - March 22.pdf
20230202 - Introduction to tis-py
20230202 - Introduction to tis-py
IaC & GitOps in a Nutshell - a FridayInANuthshell Episode.pdf
IaC & GitOps in a Nutshell - a FridayInANuthshell Episode.pdf
Computer 10: Lesson 10 - Online Crimes and Hazards
Computer 10: Lesson 10 - Online Crimes and Hazards
The Data Metaverse: Unpacking the Roles, Use Cases, and Tech Trends in Data a...
The Data Metaverse: Unpacking the Roles, Use Cases, and Tech Trends in Data a...
UiPath Studio Web workshop series - Day 6
UiPath Studio Web workshop series - Day 6
AI You Can Trust - Ensuring Success with Data Integrity Webinar
AI You Can Trust - Ensuring Success with Data Integrity Webinar
Cybersecurity Workshop #1.pptx
Cybersecurity Workshop #1.pptx
Introduction to Matsuo Laboratory (ENG).pptx
Introduction to Matsuo Laboratory (ENG).pptx
Nanopower In Semiconductor Industry.pdf
Nanopower In Semiconductor Industry.pdf
Linked Data in Production: Moving Beyond Ontologies
Linked Data in Production: Moving Beyond Ontologies
9 Steps For Building Winning Founding Team
9 Steps For Building Winning Founding Team
How Accurate are Carbon Emissions Projections?
How Accurate are Carbon Emissions Projections?
Videogame localization & technology_ how to enhance the power of translation.pdf
Videogame localization & technology_ how to enhance the power of translation.pdf
Basic Building Blocks of Internet of Things.
Basic Building Blocks of Internet of Things.
VoIP Service and Marketing using Odoo and Asterisk PBX
VoIP Service and Marketing using Odoo and Asterisk PBX
KubeConEU24-Monitoring Kubernetes and Cloud Spend with OpenCost
KubeConEU24-Monitoring Kubernetes and Cloud Spend with OpenCost
SQL TUNING 101
1.
SQL TUNING 101 Alex
Zaballa
2.
Copyright © 2016
Accenture All rights reserved. | 2 Alex Zaballa http://alexzaballa.blogspot.com/ @alexzaballa https://www.linkedin.com/in/alexzaballa 275 and counting…
3.
Copyright © 2016
Accenture All rights reserved. | 3 Worked for 3 years in Brazil as a Clipper/Delphi Developer (15 years old) 1997-1999 Worked for 7 years in Brazil as an Oracle Developer 2000 - 2007 Worked for 8 years in Angola as an Oracle DBA for the Ministry of Finance. 2007 - 2015
4.
Copyright © 2016
Accenture All rights reserved. | 4
5.
Copyright © 2016
Accenture All rights reserved. | 5 3 Membership Tiers • Oracle ACE Director • Oracle ACE • Oracle ACE Associate bit.ly/OracleACEProgram 500+ Technical Experts Helping Peers Globally Connect: Nominate yourself or someone you know: acenomination.oracle.com @oracleace Facebook.com/oracleaces oracle-ace_ww@oracle.com
6.
Copyright © 2016
Accenture All rights reserved. | 6 SQL TUNING 101 Before start….
7.
Copyright © 2016
Accenture All rights reserved. | 7 ORACLE DATABASE MULTILINGUAL ENGINE – BETA 12.2 Initial beta with JavaScript Stored Procedures http://www.oracle.com/technetwork/database/multiling ual-engine/overview/index.html
8.
Copyright © 2016
Accenture All rights reserved. | 8 ORACLE DATABASE MULTILINGUAL ENGINE – BETA 12.2
9.
Copyright © 2016
Accenture All rights reserved. | 9 ORACLE DATABASE MULTILINGUAL ENGINE – BETA 12.2
10.
Copyright © 2016
Accenture All rights reserved. | 10 ORACLE DATABASE MULTILINGUAL ENGINE – BETA 12.2 http://www.oracle.com/technetwork/pt/articles/database- performance/odb-12-2-multilingual-4394909-ptb.html
11.
Copyright © 2016
Accenture All rights reserved. | 11 https://livesql.oracle.com
12.
Copyright © 2016
Accenture All rights reserved. | 12
13.
Copyright © 2016
Accenture All rights reserved. | 13 OVERVIEW Database Tuning Vs SQL Tuning
14.
Copyright © 2016
Accenture All rights reserved. | 14 OVERVIEW Developers vs SQL
15.
Copyright © 2016
Accenture All rights reserved. | 15 TOM KYTE
16.
Copyright © 2016
Accenture All rights reserved. | 16 SQL TUNING 101 Let’s begin….
17.
Copyright © 2016
Accenture All rights reserved. | 17 SQL TUNING 101 The application is running slow today! Nothing has changed!
18.
Copyright © 2016
Accenture All rights reserved. | 18 YES, SOMETHING HAS CHANGED • Database upgraded • Statistics gathered (automatic?) • Schema changed • Database parameter changed • Application changed • Operating system (OS) and hardware changed • Data volume changed • More active users
19.
Copyright © 2016
Accenture All rights reserved. | 19 HOW TO START TROUBLESHOOTING? One SQL? All the database? ASH and AWR **Requires Oracle Diagnostics Pack
20.
Copyright © 2016
Accenture All rights reserved. | 20 SQL TUNING Proactive
21.
Copyright © 2016
Accenture All rights reserved. | 21 SQL TUNING Reactive
22.
Copyright © 2016
Accenture All rights reserved. | 22 PROACTIVE – TOOLS
23.
Copyright © 2016
Accenture All rights reserved. | 23 EDB360 - TOP SQLS
24.
Copyright © 2016
Accenture All rights reserved. | 24 EDB360 - TOP EVENTS
25.
Copyright © 2016
Accenture All rights reserved. | 25 EDB360 DEMO
26.
Copyright © 2016
Accenture All rights reserved. | 26 AWR REPORT • SQL ordered by Elapsed Time • SQL ordered by CPU Time • SQL ordered by User I/O Wait Time • SQL ordered by Gets • SQL ordered by Reads • SQL ordered by Physical Reads (UnOptimized) • SQL ordered by Executions • SQL ordered by Parse Calls • SQL ordered by Sharable Memory • SQL ordered by Version Count • SQL ordered by Cluster Wait Time
27.
Copyright © 2016
Accenture All rights reserved. | 27 AWR REPORT DEMO
28.
Copyright © 2016
Accenture All rights reserved. | 28 REACTIVE - TOOLS
29.
Copyright © 2016
Accenture All rights reserved. | 29 SQLT (SQLTXPLAIN) DIAGNOSTIC TOOL (DOC ID 215187.1) • Pros: Supported by Oracle • Cons: Requires Installation
30.
Copyright © 2016
Accenture All rights reserved. | 30 SQLT (SQLTXPLAIN) DIAGNOSTIC TOOL (DOC ID 215187.1)
31.
Copyright © 2016
Accenture All rights reserved. | 31 SQLD360 • Pros: No Installation • Cons: Might miss some information under rare circumstances
32.
Copyright © 2016
Accenture All rights reserved. | 32 SQLTXPLAIN VS SQLD360 https://mauro-pagano.com/2017/04/29/sqltxplain-vs-sqld360-differences-and-similarities/
33.
Copyright © 2016
Accenture All rights reserved. | 33 SQLD360 – HOW TO USE • Download the free tool: https://github.com/mauropagano/sqld360/ • Execution: SQL> sqld360.sql <sql_id> [N|D|T]
34.
Copyright © 2016
Accenture All rights reserved. | 34 SQLD360
35.
Copyright © 2016
Accenture All rights reserved. | 35 SQLD360
36.
Copyright © 2016
Accenture All rights reserved. | 36 SQLD360
37.
Copyright © 2016
Accenture All rights reserved. | 37 SQLD360
38.
Copyright © 2016
Accenture All rights reserved. | 38 SQLD360 DEMO
39.
Copyright © 2016
Accenture All rights reserved. | 39 SQLD360 If you want to know more: https://mauro-pagano.com/category/sqld360/
40.
Copyright © 2016
Accenture All rights reserved. | 40 EXPLAIN PLAN How about Explain Plan?
41.
Copyright © 2016
Accenture All rights reserved. | 41 EXPLAIN PLAN Explain Plain lies!
42.
Copyright © 2016
Accenture All rights reserved. | 42 EXPLAIN PLAN It does not actually execute the SQL statement. Runtime factors can influence choice of plan: • Dynamic Sampling • Bind Variable Peeking • Adaptive Features
43.
Copyright © 2016
Accenture All rights reserved. | 43 NOW WHAT? • DBMS_XPLAN.DISPLAY_CURSOR • V$SQL_PLAN%
44.
Copyright © 2016
Accenture All rights reserved. | 44 DBMS_XPLAN.DISPLAY_CURSOR • SQL_ID • CURSOR_CHILD_NO (default 0) • FORMAT TYPICAL = DEFAULT ALL = TYPICAL + QB + PROJECTION + ALIAS + REMOTE ADVANCED = ALL + OUTLINE + BINDS ALLSTATS = IOSTATS + MEMSTATS (all executions) ALLSTATS LAST (last execution) ADAPTIVE (12c)
45.
Copyright © 2016
Accenture All rights reserved. | DBMS_XPLAN
46.
Copyright © 2016
Accenture All rights reserved. | DBMS_XPLAN Display plan for the last SQL executed: select * from table(dbms_xplan.display_cursor());
47.
Copyright © 2016
Accenture All rights reserved. | DBMS_XPLAN Display plan for one specific SQL • Get SQL_ID:
48.
Copyright © 2016
Accenture All rights reserved. | SQL_ID - 18C
49.
Copyright © 2016
Accenture All rights reserved. | DBMS_XPLAN
50.
Copyright © 2016
Accenture All rights reserved. | 50 DBMS_XPLAN DEMO
51.
Copyright © 2016
Accenture All rights reserved. | DBMS_XPLAN Child Number ?
52.
Copyright © 2016
Accenture All rights reserved. | 52 DBMS_XPLAN DEMO
53.
Copyright © 2016
Accenture All rights reserved. |https://blogs.oracle.com/optimizer/entry/how_do_i_know_if /*+ gather_plan_statistics */ or Alter session set statistics_level = ALL ESTIMATE VS ACTUAL
54.
Copyright © 2016
Accenture All rights reserved. | 54 ESTIMATE VS ACTUAL DEMO
55.
Copyright © 2016
Accenture All rights reserved. | SQL MONITOR • Introduced in Oracle Database 11g. • Automatically started when a SQL statement either runs in parallel or has consumed at least 5 seconds of combined CPU and I/O. • Hint /*+ MONITOR */
56.
Copyright © 2016
Accenture All rights reserved. | SQL MONITOR • Oracle Enterprise Manager • EM Database Express (12c) • SQL Developer • Command Line **Part of the Oracle Tuning Pack
57.
Copyright © 2016
Accenture All rights reserved. | SQL MONITOR select dbms_sqltune.report_sql_monitor( sql_id => 'gjabwvvr07w09', report_level=>'ALL', type => 'ACTIVE') from dual;
58.
Copyright © 2016
Accenture All rights reserved. | SQL MONITOR
59.
Copyright © 2016
Accenture All rights reserved. | SQL MONITOR
60.
Copyright © 2016
Accenture All rights reserved. | 60 DEMO SQL MONITOR
61.
Copyright © 2016
Accenture All rights reserved. | 61 COST OF AN INDEX
62.
Copyright © 2016
Accenture All rights reserved. | FULL TABLE SCAN https://www.slideshare.net/MauroPagano3/full-table-scan-friend-or-foe
63.
Copyright © 2016
Accenture All rights reserved. | FULL TABLE SCAN https://www.slideshare.net/MauroPagano3/full-table-scan-friend-or-foe
64.
Copyright © 2016
Accenture All rights reserved. | FULL TABLE SCAN https://richardfoote.wordpress.com/2008/05/12/index-scan-or-full-table-scan-the-magic-number-magic-dance/
65.
Copyright © 2016
Accenture All rights reserved. | FULL TABLE SCAN • Clustering Factor --> How well ordered the rows in the table are in relation to the index. • Selectivity of the query • Number of table blocks • Effective multiblock read count • Relative cost of single vs. multiblock I/Os • Parallelism • Etc
66.
Copyright © 2016
Accenture All rights reserved. | FULL TABLE SCAN https://www.slideshare.net/MauroPagano3/full-table-scan-friend-or-foe
67.
Copyright © 2016
Accenture All rights reserved. | 67 • Not always good • Not always bad FULL TABLE SCAN
68.
Copyright © 2016
Accenture All rights reserved. | 68 ANALYZING TABLES
69.
Copyright © 2016
Accenture All rights reserved. | 69 ANALYZING TABLES https://docs.oracle.com/cd/B19306_01/server.102/b14200/statements_4005.htm
70.
Copyright © 2016
Accenture All rights reserved. | 70 ROW-BY-ROW PROCESSING https://blog.jooq.org/2018/04/19/the-performance-difference-between-sql-row-by-row-updating-batch-updating-and-bulk-updating/
71.
Copyright © 2016
Accenture All rights reserved. | 71 ROW-BY-ROW
72.
Copyright © 2016
Accenture All rights reserved. | 72 ROW-BY-ROW
73.
Copyright © 2016
Accenture All rights reserved. | 73 PL/SQL FORALL
74.
Copyright © 2016
Accenture All rights reserved. | 74 ONE UPDATE
75.
Copyright © 2016
Accenture All rights reserved. | EVENT 10053
76.
Copyright © 2016
Accenture All rights reserved. | EVENT 10053 ALTER SESSION SET EVENTS '10053 trace name context forever, level 1'; SELECT * FROM EMP WHERE ENAME = 'SCOTT'; ALTER SESSION SET EVENTS '10053 trace name context off';
77.
Copyright © 2016
Accenture All rights reserved. | EVENT 10053 Level 1 or Level 2? 1. Parameters used by the optimizer (level 1 only) 2. Index statistics (level 1 only) 3. Column statistics 4. Single Access Paths 5. Join Costs 6. Table Joins Considered 7. Join Methods Considered (NL/MS/HA)
78.
Copyright © 2016
Accenture All rights reserved. | EVENT 10053 For another session: SYS.DBMS_SYSTEM.SET_EV (SID,SERIAL ,10053,1) Disable: SYS.DBMS_SYSTEM.SET_EV (SID,SERIAL ,10053,0)
79.
Copyright © 2016
Accenture All rights reserved. | EVENT 10053 11G R1 ALTER SESSION SET EVENTS 'trace[rdbms.SQL_Optimizer.*][sql:my_sql_id]'; ALTER SESSION SET EVENTS 'trace[rdbms.SQL_Optimizer.*] off';
80.
Copyright © 2016
Accenture All rights reserved. | EVENT 10053 11G R2 – 18c dbms_sqldiag.dump_trace( p_sql_id=>’92c3fw9svc3rc’, p_child_number=>0, p_component=>'Compiler', p_file_id=>’MY_Trace_File'); ** Doesn’t require you to re-execute the statement.
81.
Copyright © 2016
Accenture All rights reserved. | EVENT 10053
82.
Copyright © 2016
Accenture All rights reserved. | EVENT 10053 ALTER SESSION SET EVENTS '10053 trace name context forever, level 1'; SELECT * FROM tb_master p WHERE EXISTS (SELECT 1 FROM tb_detail f WHERE f.id_master=p.id); ALTER SESSION SET EVENTS '10053 trace name context off';
83.
Copyright © 2016
Accenture All rights reserved. | EVENT 10053
84.
Copyright © 2016
Accenture All rights reserved. | EVENT 10053
85.
Copyright © 2016
Accenture All rights reserved. | EVENT 10053 QUERY BLOCK – 2 parts
86.
Copyright © 2016
Accenture All rights reserved. | EVENT 10053 Parallelism - Disabled
87.
Copyright © 2016
Accenture All rights reserved. | EVENT 10053 Subtitles
88.
Copyright © 2016
Accenture All rights reserved. | EVENT 10053 Database Parameters
89.
Copyright © 2016
Accenture All rights reserved. | EVENT 10053 System Statistics
90.
Copyright © 2016
Accenture All rights reserved. | EVENT 10053 No statistics for these tables
91.
Copyright © 2016
Accenture All rights reserved. | EVENT 10053 Dynamic Sampling
92.
Copyright © 2016
Accenture All rights reserved. | EVENT 10053 Full Table Scan – No Index
93.
Copyright © 2016
Accenture All rights reserved. | EVENT 10053 Original: Final: Final Query
94.
Copyright © 2016
Accenture All rights reserved. | EVENT 10053 Final Plan
95.
Copyright © 2016
Accenture All rights reserved. | EVENT 10053 Example 2
96.
Copyright © 2016
Accenture All rights reserved. | EVENT 10053 Let’s run this one
97.
Copyright © 2016
Accenture All rights reserved. | EVENT 10053 Original: Final:
98.
Copyright © 2016
Accenture All rights reserved. | 98 Query Transformations EVENT 10053
99.
Copyright © 2016
Accenture All rights reserved. | OR EXPANSION Original: SELECT * FROM emp WHERE job = 'CLERK' OR deptno = 10; Changed: SELECT * FROM emp WHERE job = 'CLERK’ UNION ALL SELECT * FROM emp WHERE deptno = 10 AND job <> 'CLERK';
100.
Copyright © 2016
Accenture All rights reserved. | SUBQUERY UNNESTING Original: SELECT * FROM accounts WHERE custno IN (SELECT custno FROM customers); Changed: SELECT accounts.* FROM accounts, customers WHERE accounts.custno = customers.custno;
101.
Copyright © 2016
Accenture All rights reserved. | VIEW MERGING Original: CREATE VIEW emp_10 AS SELECT empno, ename, job, sal, comm, deptno FROM emp WHERE deptno = 10; SELECT empno FROM emp_10 WHERE empno > 7800; Changed: SELECT empno FROM emp WHERE deptno = 10 AND empno > 7800;
102.
Copyright © 2016
Accenture All rights reserved. | PREDICATE PUSHING Original: CREATE VIEW two_emp_tables AS SELECT empno, ename, job, sal, comm, deptno FROM emp1 UNION SELECT empno, ename, job, sal, comm, deptno FROM emp2; SELECT ename FROM two_emp_tables WHERE deptno = 20;
103.
Copyright © 2016
Accenture All rights reserved. | PREDICATE PUSHING Changed: SELECT ename FROM ( SELECT empno, ename, job,sal, comm, deptno FROM emp1 WHERE deptno = 20 UNION SELECT empno, ename, job,sal, comm, deptno FROM emp2 WHERE deptno = 20 );
104.
Copyright © 2016
Accenture All rights reserved. | TRANSITIVITY Original: SELECT * FROM emp, dept WHERE emp.deptno = 20 AND emp.deptno = dept.deptno; Changed: SELECT * FROM emp, dept WHERE emp.deptno = 20 AND emp.deptno = dept.deptno AND dept.deptno = 20;
105.
Copyright © 2016
Accenture All rights reserved. | 105 COUNT(1) VS COUNT(*) What is the difference between count(1) and count(*) ?
106.
Copyright © 2016
Accenture All rights reserved. | 106 COUNT(1) VS COUNT(*) Nothing
107.
Copyright © 2016
Accenture All rights reserved. | 107 COUNT(1) VS COUNT(*)
108.
Copyright © 2016
Accenture All rights reserved. | MORE ABOUT THE EVENT 10053
109.
Copyright © 2016
Accenture All rights reserved. |
110.
Copyright © 2016
Accenture All rights reserved. | Oracle Database 12.1 OPTIMIZER_ADAPTIVE_FEATURES Default TRUE ADAPTIVE FEATURES
111.
Copyright © 2016
Accenture All rights reserved. | Oracle Database 12.2 introduces the new split- up adaptive parameters: • OPTIMIZER_ADAPTIVE_PLANS • OPTIMITER_ADAPTIVE_STATISTICS ADAPTIVE FEATURES
112.
Copyright © 2016
Accenture All rights reserved. | On Oracle Database 12.1 this can be achieved by installing two patches. ADAPTIVE FEATURES
113.
Copyright © 2016
Accenture All rights reserved. | The patch for bug# 22652097 introduces the two parameters OPTIMIZER_ADAPTIVE_PLANS and OPTIMIZER_ADAPTIVE_STATISTICS, and in addition removes the parameter OPTIMIZER_ADAPTIVE_FEATURES. The patch for bug# 21171382 disables the automatic creation of extended statistics unless the optimizer preference AUTO_STATS_EXTENSIONS is set to ON. ADAPTIVE FEATURES
114.
Copyright © 2016
Accenture All rights reserved. | https://blogs.oracle.com/optimizer/entry/improvement_of_auto_sampling_statistics_gathering_feature_in_oracle_database_11g estimate_percent => dbms_stats.auto_sample_size STATISTICS
115.
Copyright © 2016
Accenture All rights reserved. | Should I use? HINTS
116.
Copyright © 2016
Accenture All rights reserved. | Query running on M7: 180 Minutes Query after db clone P8+Storage ? • Time: 29 hours Query running on M7 after SQL tuning: 17 minutes SQL TUNING ON EXADATA
117.
Copyright © 2016
Accenture All rights reserved. | SQL TUNING ON EXADATA
118.
Copyright © 2016
Accenture All rights reserved. |
119.
Copyright © 2016
Accenture All rights reserved. | Set table preferences: begin dbms_stats.set_table_prefs ( ownname => 'SCOTT', tabname => 'EMP', pname => 'PUBLISH', pvalue => 'FALSE' ); end; Collect the statistics. PENDING STATISTICS
120.
Copyright © 2016
Accenture All rights reserved. | select num_rows, to_char(last_analyzed,'dd/mm/rrrr hh24:mi:ss’) from all_tab_pending_stats where table_name = 'EMP'; PENDING STATISTICS
121.
Copyright © 2016
Accenture All rights reserved. | alter session set optimizer_use_pending_statistics = true; Test your queries. PENDING STATISTICS
122.
Copyright © 2016
Accenture All rights reserved. | If it’s ok: dbms_stats.publish_pending_stats('SCOTT', 'EMP’); or: dbms_stats.delete_pending_stats(’SCOTT',’EMP'); PENDING STATISTICS
123.
Copyright © 2016
Accenture All rights reserved. | Check the retention: select DBMS_STATS.GET_STATS_HISTORY_RETENTION from dual; Default is 31 days. RESTORE STATISTICS FROM HISTORY
124.
Copyright © 2016
Accenture All rights reserved. | Statistics available for the table: SELECT OWNER, TABLE_NAME, STATS_UPDATE_TIME FROM dba_tab_stats_history WHERE table_name='MY_TABLE'; RESTORE STATISTICS FROM HISTORY
125.
Copyright © 2016
Accenture All rights reserved. | Begin dbms_stats.restore_table_stats( 'SCOTT', 'EMP', ‘08-NOV-16 11.38.05.015640 AM +08:00’); End; RESTORE STATISTICS FROM HISTORY
126.
Copyright © 2016
Accenture All rights reserved. | begin dbms_stats.CREATE_STAT_TABLE( ownname=>user , stattab=>'MY_STATS_TABLE' ); end; begin dbms_stats.export_schema_stats( ownname=>user , stattab=>'MY_STATS_TABLE' , statid=>'CURRENT_STATS' ); end; EXPORT AND IMPORT SCHEMA STATISTICS
127.
Copyright © 2016
Accenture All rights reserved. | EXPDP / IMPDP begin dbms_stats.import_schema_stats( ownname=>user , stattab=>'MY_STATS_TABLE' , statid=>'CURRENT_STATS' ); End; EXPORT AND IMPORT SCHEMA STATISTICS
128.
Copyright © 2016
Accenture All rights reserved. | Incremental statistics for partitioned tables: dbms_stats.set_table_prefs(null,'SALES','INCREMENTAL','TRUE') INCREMENTAL STATISTICS
129.
Copyright © 2016
Accenture All rights reserved. | INCREMENTAL STATISTICS
130.
Copyright © 2016
Accenture All rights reserved. | CREATE INDEX index_name ON table_name(column_name) INVISIBLE; ALTER INDEX index_name INVISIBLE; ALTER INDEX index_name VISIBLE; INVISIBLE INDEXES
131.
Copyright © 2016
Accenture All rights reserved. | ALTER SESSION SET OPTIMIZER_USE_INVISIBLE_INDEXES=TRUE; INVISIBLE INDEXES
132.
Copyright © 2016
Accenture All rights reserved. | ALTER SESSION SET sql_trace=TRUE; ALTER SESSION SET sql_trace=FALSE; EXEC DBMS_SESSION.set_sql_trace(sql_trace => TRUE); EXEC DBMS_SESSION.set_sql_trace(sql_trace => FALSE); ALTER SESSION SET EVENTS '10046 trace name context forever, level 12'; ALTER SESSION SET EVENTS '10046 trace name context off'; EXEC DBMS_SYSTEM.set_sql_trace_in_session(sid=>0000, serial#=>0000, sql_trace=>TRUE); EXEC DBMS_SYSTEM.set_sql_trace_in_session(sid=>0000, serial#=>0000, sql_trace=>FALSE); SQL TRACE, 10046, TRCSESS AND TKPROF
133.
Copyright © 2016
Accenture All rights reserved. | CONN sys/password AS SYSDBA; ORADEBUG SETMYPID; ORADEBUG SETOSPID 0000; ORADEBUG SETORAPID 000000; ORADEBUG EVENT 10046 TRACE NAME CONTEXT FOREVER, LEVEL 12; ORADEBUG EVENT 10046 TRACE NAME CONTEXT OFF; SQL TRACE, 10046, TRCSESS AND TKPROF
134.
Copyright © 2016
Accenture All rights reserved. | EXEC DBMS_SUPPORT.start_trace(waits=>TRUE, binds=>TRUE); EXEC DBMS_SUPPORT.stop_trace; EXEC DBMS_SUPPORT.start_trace_in_session(sid=>0000, serial=>000000, waits=>TRUE, binds=>TRUE); EXEC DBMS_SUPPORT.stop_trace_in_session(sid=>0000, serial=>000000); SQL TRACE, 10046, TRCSESS AND TKPROF
135.
Copyright © 2016
Accenture All rights reserved. | 10g: DBMS_MONITOR.session_trace_enable(waits=>TRUE, binds=>FALSE); DBMS_MONITOR.session_trace_enable(session_id =>0000, serial_num=>000000, waits=>TRUE, binds=>TRUE); DBMS_MONITOR.client_id_trace_enable(client_id=>'my_client', waits=>TRUE, binds=>TRUE); DBMS_MONITOR.serv_mod_act_trace_enable(service_name=>'my_srv', module_name=>'my_test', action_name=>'calculating', waits=>TRUE, binds=>TRUE); SQL TRACE, 10046, TRCSESS AND TKPROF
136.
Copyright © 2016
Accenture All rights reserved. | ALTER SESSION SET TRACEFILE_IDENTIFIER = "MY_TRC_FILE"; SQL TRACE, 10046, TRCSESS AND TKPROF
137.
Copyright © 2016
Accenture All rights reserved. | SELECT p.tracefile FROM v$session s JOIN v$process p ON s.paddr = p.addr WHERE s.sid = MY_SID; SQL TRACE, 10046, TRCSESS AND TKPROF
138.
Copyright © 2016
Accenture All rights reserved. | 12.2 v$diag_trace_file v$diag_trace_file_contents SQL TRACE, 10046, TRCSESS AND TKPROF
139.
Copyright © 2016
Accenture All rights reserved. | EVENT 10046
140.
Copyright © 2016
Accenture All rights reserved. | ALTER SESSION SET EVENTS '10046 trace name context forever, level 12'; SELECT * FROM tb_pai p WHERE EXISTS (SELECT 1 FROM tb_filho f WHERE f.id_pai=p.id); ALTER SESSION SET EVENTS '10046 trace name context off'; EVENT 10046
141.
Copyright © 2016
Accenture All rights reserved. | EVENT 10046
142.
Copyright © 2016
Accenture All rights reserved. | EVENT 10046
143.
Copyright © 2016
Accenture All rights reserved. | EVENT 10046
144.
Copyright © 2016
Accenture All rights reserved. | EVENT 10046
145.
Copyright © 2016
Accenture All rights reserved. | EVENT 10046
146.
Copyright © 2016
Accenture All rights reserved. | EVENT 10046
147.
Copyright © 2016
Accenture All rights reserved. | • TKPROF • TRCSESS • Trace Analyzer TRCANLZR (TRCA) • Method R Tools SQL TRACE, 10046, TRCSESS AND TKPROF
148.
Copyright © 2016
Accenture All rights reserved. | SQL TRACE, 10046, TRCSESS AND TKPROF
149.
Copyright © 2016
Accenture All rights reserved. |http://www.oraclenerd.com/2011/02/sql-developer-mr-trace.html SQL TRACE, 10046, TRCSESS AND TKPROF
150.
Copyright © 2016
Accenture All rights reserved. | 150 SQLCL http://www.oracle.com/technetwork/developer-tools/sqlcl/downloads/index.html
151.
Copyright © 2016
Accenture All rights reserved. | 151 QUESTIONS?
152.
Copyright © 2016
Accenture All rights reserved. | 152 Thank You Slides Available: http://www.slideshare.net/
Notas del editor
SQL TUNING – more effective
New Developers are not happy learning SQL SQL still the best way to manipulate DATA, including BIG DATA - Spark SQL - Cloudera Impala - Oracle Big Data SQL - Apache Hive
Not commonWe have more than 100 databases to administer
Free tooledb360 By Carlos Sierra
AWR History Default – 8 days
Período específico
No installation Free
FKs - enq: TM – contention In-Memory – speed OLTP
Muitos Dbas acham q tuning é remover FTS
Mito %
let’s go deeper…