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Oracle SQL_TRACE - Beginner
 
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Oracle SQL_TRACE - Beginner
Views: 21844 Chris Ostrowski
SQL: SQL Tracing  Part-1
 
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In this tutorial, you'll learn how to create a tracing file..
Views: 10420 radhikaravikumar
ORACLE TKPROF fundamentals Part 1 -  Introduction to SQL Tracing & TKPROF
 
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Link for ORACLE TKPROF fundamentals Part-2 (Interpret TKPROF Report) https://www.youtube.com/watch?v=OiVu6vFq28w ORACLE TKPROF fundamentals For SQL TUNING Part-1 covers 1. Introduction to SQL Tracing. 2. Set up SQL_Trace &TKPROF. 3. Generate TKPROF Report. ---------------------------------------------------------------------------------------------------------------------- ORACLE TKPROF fundamentals For TUNING SQL Part-2 covers  1. Interpreting TKPROF Report.
Views: 32050 Anindya Das
AskTOM TV - SQL trace, SQL plus, SQL developer
 
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A video to help you understand the "thought process" behind answering AskTom questions. In this episode, we look at how we can use SQL trace to diagnose what autotrace privileges we need in SQL Developer blog: https://connor-mcdonald.com ========================================­­­­============== Copyright © 2017 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
Views: 1282 Connor McDonald
Understanding SQL Trace, TKPROF and Execution Plan for Beginners
 
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Presenter: Carlos Sierra, Oracle Corporation In this session, participants will learn about producing a SQL Trace then a summary TKPROF report. A sample TKPROF is navigated with the audience, where the trivial and the not so trivial is exposed and explained. Execution Plans are also navigated and explained, so participants can later untangle complex execution plans and start diagnosing SQL performing badly.
Views: 758 ODTUG
Trace session details with USER process and SERVER process ID
 
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Oracle database user session tracing.
Views: 7657 OrSkl Academy
Oracle DB - Alert Log, Trace Files & ADR
 
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Oracle DB - Alert Log, Trace Files & ADR Watch More Videos at: https://www.tutorialspoint.com/videotutorials/index.htm Lecture By: Mr. Parth Panjabi, Tutorials Point India Private Limited
Tracing SQL execution
 
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Tracing SQL execution watch more videos at https://www.tutorialspoint.com/videotutorials/index.htm Lecture By: Mr. Parth Panjab, Tutorials Point India Private Limited
Query Tuning 101 How to Run Autotrace in SQL Developer
 
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This video shows how to run autotrace reports using Oracle SQL Developer to analyze query performance. It also discusses the privileges you need to enable database users to run autotrace. ============================ The Magic of SQL with Chris Saxon Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
Views: 19584 The Magic of SQL
Four Steps to Oracle SQL Tuning  - A Methodolgy
 
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Learn a predictable and repeatable methodology for tuning Oracle SQL statements. Just four steps that you should always follow when tuning an SQL statement. (Note this video does not contain examples of how to apply the four steps, just what the steps are.) Oracle Certified Master John Watson presents. John concludes with a brief overview of how SkillBuilders SQL tuning course provides the information you need to apply the four steps. Learn more about SkillBuilders SQL Tuning course http://skillbuilders.com/oracle-sql-tuning-training 1. What is Oracle doing? (explain plan, trace) 2. Why is Oracle doing it that way? (analyze the execution plan) 3. Is there a better way? Test! 4. If there's a better way, push the CBO towards the better way.
Views: 13674 SkillBuilders
Query Tuning with tkprof
 
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Demonstration of generating Oracle trace files and then turning these into tuning reports with the tkprof utility.
Views: 55219 Stephen Frein
Tracing Oracle SQL Performance
 
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Tracing Oracle SQL statement performance
Views: 69 Tommy Tang
Using Autotrace in SQL*Plus
 
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Demonstration of using autotrace in SQL*Plus, and how it can aid in performance tuning.
Views: 7987 Stephen Frein
SQL: SQL Tracing  Part-2
 
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In this tutorial, you'll learn how to create a tracing file..
Views: 7255 radhikaravikumar
Oracle tracing per session
 
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Support demonstrates how to set up an Oracle trace for a particular Desktop Client session To learn more about --- visit: https://www.microfocus.com/ SUBSCRIBE: https://www.youtube.com/channel/UCZHLAuzLykBK09uEJesc2og?sub_confirmation=1 More Micro Focus Links: HOME: https://www.microfocus.com PRODUCTS & SOLUTIONS: https://www.microfocus.com/products SUPPORT & SERVICES: https://www.microfocus.com/support-and-services COMMUNITY: https://www.microfocus.com/communities Micro Focus is a global software company with 40 years of experience in delivering and supporting enterprise software solutions that help customers innovate faster with lower risk.
Oracle  AUTOTRACE Fundamentals to Analyze & Tune SQL
 
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This Tutorial will explain fundamentals of Oracle AUTOTRACE. Set up & Use AUTOTRACE. Review PLAN & Statistics generated by AUTOTRACE. Understanding Statistics details.
Views: 23296 Anindya Das
Working with the Trace File Analyzer Collector
 
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The Trace File Analyzer (TFA) Collector Tool is a utility for collecting first failure diagnostics when creating Service Requests with Oracle Support. Using TFA Collector to make diagnostic collections removes questions about what files to collect and upload. TFA knows about all the well known Oracle and operating system diagnostic locations and collects only files that have been modified proximate to problem time specified from any of those well known locations. Larger files are also pruned proximate to problem time specified to reduce the size of the upload. If the system is a clustered environment TFA collects relevant diagnostics from the remote nodes as well. All of this can be accomplished with one simple command. Key features of TFA Collector include: RAC and single instance non-RAC support Time-based collection of relevant files OS Clusterware ASM DB OSW and CHMOS etc Large file pruning Cluster-wide time-relevant collections Analytics for key files DB alert logs Clusterware alert logs ASM alert logs system messages OSWatcher top and slabinfo data Flexible command-line interface Copyright © 2014 Oracle and/or its affiliates. Oracle® is a registered trademark of Oracle and/or its affiliates. All rights reserved. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the "Materials"). The Materials are provided "as is" without any warranty of any kind, either express or implied, including without limitation warranties of merchantability, fitness for a particular purpose, and non-infringement.
SQL: SQL Tracing  Part-3
 
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In this tutorial, you'll learn how to create a tracing file..
Views: 6665 radhikaravikumar
How to Monitor Session in SQL Developer | Oracle SQL Developer Tips and Tricks
 
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How to Monitor Session in Oracle SQL Developer | Oracle SQL Developer Tips and Tricks Oracle SQL Tutorial for Beginners, Oracle Database Tutorial for Beginners, Oracle SQL Developer Tips and Tricks, Oracle Tutorial for Beginners, Oracle Tutorial How to Monitor Session in SQL Developer, How to Monitor Session Using SQL Developer, How to Monitor Session in Oracle SQL Developer, How to Monitor Session Using Oracle SQL Developer, how to check number of connections in oracle, how to check active sessions in oracle, oracle sql developer real time sql monitoring, how to check active session in oracle 11g, sql developer monitor sessions table or view does not exist oracle monitor sql statements how to check query performance in oracle sql developer
Views: 729 Oracle PL/SQL World
Why is my Oracle Database Slow? The SQL Developer Performance Dashboard
 
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Oracle SQL Developer's product manager, Jeff Smith, takes you through the Instance Viewer: a performance dashboard for your Oracle Database. See expensive queries, wait event break downs, and more!
Views: 1744 Jeff Smith
DBMS_PROFILER - A Key to Identify PL/SQL Performance Bottleneck
 
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This video tutorial explains PL/SQL performance analysis with DBMS_PROFILER. This video tutorial explains DBMS_PROFILER package,Profiler tables,how to use profiler. It demonstrates Setting up DBMS_PROFILER, Profiling for a PL/SQL procedure and Analyzing the Profiler data.
Views: 28608 Anindya Das
PL/SQL Tracing with dbms_profiler and dbms_hprof | Ric Van Dyke
 
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Fresh from delivering his session at the 2016 Great Lakes Oracle Conference in Cleveland, OH, Oracle ACE Ric Van Dyke shares a tip about tracing PL/SQL with dbms_profiler and dbms_hprof.
Views: 598 ArchBeat Archive
Trace It, Log It, Format It - Part 1
 
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Oracle Performance Tuning - Logging and Tracing in Oracle In this video I have explained how to enable Oracle Trace for a session, service, module, action or client identifier using Oracle Event 10046, SQL_TRACE, DBMS_MONITOR, DBMS_SUPPORT, DBMS_SYSTEM, location of log and trace files and how to write custom messages to alert.log file
Views: 5071 Satish Lodam
SQL Server 2012 tutorial 87: How to create, filter, and run a trace.
 
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How to create, filter, and run a trace using SQL Server Profiler. For more info, or a copy of any of the scripts used in any of my tutorials, please email me at [email protected]
Views: 6095 Johnny Deluca
Oracle SQL Developer: Query Builder Demo
 
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How to build queries with your mouse versus the keyboard. 2018 Update: If you'd like to see how to convert your Oracle style JOINS to ANSI style (in the FROM vs the WHERE clause) see this post https://www.thatjeffsmith.com/archive/2018/10/query-builder-on-inline-views-and-ansi-joins/
Views: 76275 Jeff Smith
Slow SQL Query? Get the Plan in Oracle SQL Developer!
 
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See how to get execution and explain plans, format and views those plans, use AutoTrace, and Real Time SQL Monitoring for your SQL queries in Oracle SQL Developer.
Views: 3062 Jeff Smith
Oracle X$TRACE, Wait Event Internals and Background Process Communication
 
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In this session we will look into some internals of Oracle background process communication and also some special types of wait events that most people aren’t aware of. We will use some exotic tracing for internals research and fun and some of this stuff is actually useful in real life too! I’m not going to reveal everything upfront, as this is a secret internals hacking session after all ;-) We will use various techniques to research what the “reliable message” wait event is about and how reliable background process communication is orchestrated in Oracle. This is a hacking session, not formal structured training, so I’ll just do free form demos and talk (probably no slides, just hacking stuff on the command line). Also, check out my full-week Advanced Oracle Troubleshooting online training at https://blog.tanelpoder.com/seminar
Views: 3357 Tanel Poder
Where is my tracefile
 
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SQL trace is an awesome performance tuning resource. But before you can do that analysis, you need to know WHERE your trace file is. ========================================­============== Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
Views: 2900 Connor McDonald
ORACLE TKPROF fundamentals Part 2 - Interpret TKPROF Report
 
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ORACLE TKPROF fundamentals Part 2 video will cover interpretation of TKPROF Report. Video Part 1 will be in this url -- http://www.youtube.com/watch?v=8CQO2mEJg0s Part 1 will cover 1. Introduction to SQL Tracing.,2. Set up SQL_Trace &TKPROF, 3 Generate TKPROF Report.
Views: 20544 Anindya Das
Tracing Parallel Execution
 
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This video shows how to trace parallel executions. Copyright © 2012 Oracle and/or its affiliates. Oracle® is a registered trademark of Oracle and/or its affiliates. All rights reserved. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the "Materials"). The Materials are provided "as is" without any warranty of any kind, either express or implied, including without limitation warranties of merchantability, fitness for a particular purpose, and non-infringement.
SQL Tuning Advisor & Baselines
 
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SQL Tuning Advisor & Baselines watch more videos at https://www.tutorialspoint.com/videotutorials/index.htm Lecture By: Mr. Parth Panjab, Tutorials Point India Private Limited
How to recover controlfile through trace file in ORACLE 11g in HIndi
 
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In this video i'm showing you how to recover controlfile through trace file, without helpt of any backup.
Views: 8542 OCP Technology
Top Nine Coding Guidelines for Oracle PL/SQL
 
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My take, as of November 2015, of some of the most helpful guidelines to follow when writing PL/SQL code: 1. MAXSQL - maximize use of SQL first and foremost 2. SPOD - single point of definition 3. TRACE - production-available application-level tracing 4. LOG - consistent, encapsulated error logging 5. BULK - avoid row by row 6. OBVIOUS - make your code tell its own story, comment when it can't 7. NESTPROG - use nested subprograms 8. DECLARE - use declarative features of language 9. WARN - use compile-time warnings Accompanying blog post: http://stevenfeuersteinonplsql.blogspot.com/2015/10/your-ideas-for-more-important-plsql.html ======================================== Practically Perfect PL/SQL with Steven Feuerstein Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement. ======================================== Practically Perfect PL/SQL with Steven Feuerstein Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
Oracle SQL Tuning Expert Series - Understanding Indexes
 
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Ross Leishman of DWS Ltd presents the principles of Understanding Indexes for SQL Tuning. The presentation includes an entertaining demonstration of Indexes featuring DWS Alumnus Jordan Thomas as a "Buffer Cache". DWS Ltd is a leading publicly listed Australian IT Services company, providing services to blue chip organisations since 1991. With a business philosophy based upon integrity, reliability and professional service delivery, DWS provides end to end IT solutions. www.dws.com.au
Views: 45459 DWS Ltd
In-Depth with Trace File Analyzer 18.2
 
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Held on July 24 2018 Gareth Chapman and Bill Burton talks in depth about how Oracle Trace File Analyzer works. Here's a quick guide to the highlights: 01:46 What is Oracle's goal in developing TFA 04:02 As TFA is included in the GI & DB Homes, does it get upgraded as part of RUs? 05:52 Can I still upgrade to the latest version of TFA without applying a RU? 07:46 Is there any difference between the MOS version of TFA and the one included in the RUs? 10:02 What will happen if I apply a RU which has an older version? 11:52 What's the difference between a root install and non-root? 14:59 How do I get notified of new issues TFA detects? 17:29 Can TFA automatically upload to MOS? 18:50 Where will collections be stored? 19:57 Does TFA make sure there is space to store the collection? 22:22 How can I make a targeted collection? 25:17 What else can TFA do apart from taking collections? AskTOM Office Hours offers free, monthly training and tips on how to make the most of Oracle Database, from Oracle product managers, developers and evangelists. https://asktom.oracle.com/ Oracle Developers portal: https://developer.oracle.com/ Sign up for an Oracle Cloud trial: https://cloud.oracle.com/en_US/tryit music: bensound.com
Views: 985 Oracle Developers
SQL Monitoring Hacking Session
 
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This is a free form hacking session that demonstrates some less known techniques and findings of Oracle SQL Monitoring reports and answers some low level questions about when does SQL Monitoring kick in automatically. As this was an unstructured hacking session, I ended up troubleshooting my own demos a couple of times as well :-) Related links: Slides: https://blog.tanelpoder.com/2015/10/29/sql-monitoring-in-oracle-database-12c/ An great SQL Monitoring usage article by Maria Colgan: https://sqlmaria.com/2017/08/01/getting-the-most-out-of-oracle-sql-monitor/ ASH hacking session: https://blog.tanelpoder.com/posts/oracle-sql-monitoring-advanced-ash-usage-hacking-session/ Online Training: https://blog.tanelpoder.com/seminars/
Views: 1272 Tanel Poder
Real Time SQL Monitorin Demo in Oracle SQL Developer
 
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See how to watch a query execute in real time using this Oracle Database Tuning Pack feature in Oracle SQL Developer.
Views: 26013 Jeff Smith
A 5 Minute Tour of Oracle SQL Developer
 
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Write queries and interact with results, click into objects and manage them, execute and debug your PL/SQL, write custom reports, model your objects, and migrate from 3rd party databases to Oracle - all with Oracle SQL Developer!
Views: 5804 Jeff Smith
Optimizing SQL Performance
 
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Held on July 12 2018 In July's session we mainly looked at performance. Highlights include: 1:30 How does the database process subqueries? 5:20 Performance: comparing insert ... select to create tmp table, insert select from tmp; DDL in PL/SQL; dynamic SQL problems 12:45 18c private temporary tables; tables specific to a session; DDL you can rollback across! 21:00 Improving update performance: things to watch for; insert vs. update; "join-update" - create a view instead; create table as select "update" 34:05 Analytic function performance: first_value non-determinism; min keep vs first_value; computing function in a subquery; indexes for analytic functions AskTOM Office Hours offers free, monthly training and tips on how to make the most of Oracle Database, from Oracle product managers, developers and evangelists. https://asktom.oracle.com/ Oracle Developers portal: https://developer.oracle.com/ Sign up for an Oracle Cloud trial: https://cloud.oracle.com/en_US/tryit music: bensound.com
Views: 563 Oracle Developers
Oracle SQL Performance Tuning for Developers: Understand Explain Plans
 
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Understanding Explain Plans is an excerpt from Oracle SQL Performance Tuning for Developers: http://www.informit.com/store/oracle-sql-performance-tuning-for-developers-livelessons-9780134117027 6+ Hours of Video Instruction The focus of Oracle SQL Performance Tuning for Developers LiveLessons is to illustrate coding techniques that ensure a consistent response time between instances and releases of the Oracle database. This course works closely with performance tuning of actual SQL statements. Description In this video training, Dan Hotka starts out with a complete overview of the Oracle architecture so students can get an understanding how their SQL and applications can take advantage of the computing environment. This course then goes in-depth on understanding and controlling the Explain Plan, which is how and in what order Oracle retrieves data. The discussion includes considerable detail, with SQL examples, on how the optimizers--both rule-based and cost-based, but mostly cost-based--make their decisions. Students will work with a variety of SQL statements, reviewing Explain Plans and making changes to make these SQL statements perform better. Lectures include index design, using hints and coding style to control the Explain Plans, and how to use useful tools such as index monitoring, SQL Trace, and the PL/SQL profiler. This LiveLessons course takes a close look at indexes: how Oracle selects them, why they are sometimes not used, and how to tell if indexes are being used. This course includes Oracle10g, Oracle11g, and Oracle12c SQL tuning topics. Skill Level Intermediate Learn How To Read and understand Explain Plan content Review an Explain Plan and tell quickly if this is a good plan Understand a good index column candidate from a not-so-good candidate Quickly tell the likelihood if your SQL will use an existing index Use coding and a variety of Hints (directives) that can produce better performing SQL Execute and interpret SQL trace output Who Should Take This Course Oracle programmers Oracle database administrators who need additional training on SQL tuning Course Requirements Working knowledge of the SQL query language http://www.informit.com/store/oracle-sql-performance-tuning-for-developers-livelessons-9780134117027
Views: 3431 LiveLessons
Method R Trace 18.2
 
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Method R Trace is a zero-click trace file collector for Oracle SQL Developer. Every time you execute SQL or PL/SQL from your SQL Developer worksheet, Method R Trace automatically copies your file to your workstation, where you can load it into Method R Workbench, or open it with any application you choose.
Views: 124 Cary Millsap
How to trace SOA Suite Sql
 
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This video is an excerpt from one of our Oracle BPM Training courses. It shows you how to trace SOA Suite sql when you need to see what SQL queries the BPM/SOA Suite engine is submitting to the SOA Infra database. Interested in learning Oracle BPM? Check out our Oracle BPM Self Paced Courses at https://training.fusionapplied.com/oracle-bpm-training-course-catalog/ If you are interested in training, be sure to sign up for Course Discounts at http://training.fusionapplied.com
Views: 203 Fusion Applied
Why you need a profiler for Oracle
 
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This video explains why you need a profiler for Oracle-based software application systems. For more information about the Method R Profiler, please visit http://method-r.com/software/profiler.
Views: 3057 Cary Millsap
Query Tuning 101: How to Compare Execution Plans
 
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When you're tuning SQL query there's two important questions to keep in mind: * Have my changes made any difference? * If they have, is performance better or worse? In this video we'll look at how you can use SQL Developer to compare execution plans. This will enable you to differences between them and determine which plan performs better. ============================ The Magic of SQL with Chris Saxon Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
Views: 15353 The Magic of SQL
Improve SQL Server performance using profiler and tuning advisor
 
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For more such videos visit http://www.questpond.com See our other Step by Step video series below :- Learn SQL Server Step by Step in 16 hours:- http://tinyurl.com/ja4zmwu Learn MSBI Step by Step in 32 hours:- https://goo.gl/TTpFZN Learn Angular tutorial for beginners https://tinyurl.com/ycd9j895 Learn MVC Core step by step :- http://tinyurl.com/y9jt3wkv Learn MVC 5 Step by Step in 16 hours:- https://goo.gl/dmdakg Learn Xamarin Mobile Programming Step by Step :- https://goo.gl/WDVFuy Learn Design Pattern Step by Step in 8 hours:- https://goo.gl/eJdn0m Learn C# Step by Step in 100 hours :- https://goo.gl/FNlqn3 Learn Data structures & algorithm in 8 hours :-https://tinyurl.com/ybx29c5s Learn Javascript in 2 hours :- http://tinyurl.com/zkljbdl Learn SharePoint Step by Step in 8 hours:- https://goo.gl/XQKHeP Learn TypeScript in 45 Minutes :- https://goo.gl/oRkawI Learn webpack in 50 minutes:- https://goo.gl/ab7VJi Learn Visual Studio code in 10 steps for beginners:- https://tinyurl.com/lwgv8r8 Learn Tableau step by step :- https://tinyurl.com/kh6ojyo This video first starts with a simple explanation of what is a SQL server profiler and performance tuning wizard. After completing the basic concepts it then demonstrates a simple example using two tables by capturing the work load and understanding the recommendations given by the tuning wizard. For more such videos visit http://www.questpond.com We are also distributing a 100 page Ebook "Sql Server Interview Questions". If you want this ebook please share this video in your facebook/twitter/linkedin account and email us on [email protected] with the shared link and we will email you the PDF.
How to Track and Trace Events in Oracle Transportation Management Cloud (OTM)
 
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This video demonstrates How to Track and Trace Events in Oracle Transportation Management (OTM). Enroll for our complete trainings at: www.apps2fusion.com/packages Also, visit us at : http://apps2fusion.com/ Contact us at: [email protected] or +44-207-193-5456 | +1-650-318-5241
Views: 999 apps2fusion
ORACLE EXPLAIN PLAN FUNDAMENTALS
 
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This Tutorial will explain basics of Oracle 11g EXPLAIN Plan by using this ppt & some hands-on in Oracle 11g R2 Database.This tutorial will include below topics. Understanding EXPLAIN plan. Set up & Use EXPLAIN Plan. Explain PLAN_TABLE & related scripts & DBMS_XPLAN.DISPLAY. Generate & View EXPLAIN Plan. Read & Interpret basics of EXPLAIN Plan. EXPLAIN PLAN limitations.
Views: 162863 Anindya Das
performance tuning
 
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Tracing: Transaction ST12 = Combination of two transactions . SAT (ABAP Trace) , ST05 = SQL Trace SQL Trace: To monitor the database access of reports and transactions. Less common traces : Enqueue Trace: (the locking system),RFC Trace, Table buffer trace: Performance Improvements ABAP Coding: Keep an eye on those loops. Select statements in loops = absolutely avoid = use for all entries instead Function call, or performs in loops = re - visit and see if you can optimize The "READ TABLE" statement Sorted table- Binary search .. Or even better use "Index" on internal tables. Use mass operations on internal table = internal table copy one to another, Append lines of int_fligh1 to int_fligh2. Use field symbols to modify internal table in a loop (minor improvement ) A little trick if you call performs in a loop:: Use static variables Avoid sleep, wait etc commands.. Or synchronous RFC calls 2)Database bottleneck Use Indexes : Make sure Indexes are being used in your select statement (check with trace if needed) Extreme case , create new index (this has the disadvantage of making the insert slower) Select -- End select loop : Usually database optimiser will fix it, still avoid it Select * into corresponding fields = about a millisecond slower Make clever use of inner joins Use views Use (max,min, avg): example : Select max( flightnum ) from flight . GET RUN TIME command Reduce I/O first, then memory, then CPU activity.Field-groups can be useful for multi-level sorting and displaying. However, they write their data to the system's paging space, rather than to memory (internal tables use memory)
Views: 16787 Sourabh Bora
The New (18c) Trace File Analyzer Service
 
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Click on SHOW MORE for video highlights! Products and functionality covered in the Autonomous Health Framework's (AHF) family include the Applied Machine Learning-based products of Cluster Health Advisor (CHA), Hang Manager (HM) and Trace File Analyzer (TFA), as well as performance management and continuous availability functionality in ORAchk/EXAchk, Memory Guard, Cluster Health Monitor Cluster Verification Utility and QoS Management. The session covers the new Trace File Analyzer Service that is part of Oracle Database 18c. 03:32 - What is Oracle’s goal in developing the TFA Service?05:50 - Is TFA available on ODA and is it licensed for Standard Edition? 07:10 - When to use TFA and when to use IPS? 09:31 - How do you envision its integration into Operations? 11:18 - Does it connect to Oracle Support Services? 12:18 - Which type of events show up in its timeline? 13:39 - What actions can I take on these events? 16:45 - Can I get alerted to these events? 17:30 - What is considered an Anomaly? 20:26 - How do I know whether it is good or bad? 23:55 - What is the best way to make use of the Anomaly Timeline? 26:30 - How do I get this service? 28:52 - Is the 18c DSC TFA different from the standalone TFA that I download from Oracle? If so, how do I upgrade the DSC TFA? 31:34 - So if we upgrade GI to 18.x will TFA upgraded as well or do we upgrade TFA additionally? 33:00 - Does it only work with Oracle 18.3 and later databases and GI? 34:40 - Can I get this in the latest MOS version? 35:38 - Does it require initial configuration post installation?37:50 - Does the TFA Service on the DSC have a UI? 39:00 - Does it require specific browsers or plugins? 39:15 - Is the TFA Service is an Oracle Cloud offering or it is a built-in function within the DSC? 41:06 - Which users have access to it? 42:35 - Is lifecycle management of the repository automatic? 44:40 - Is it integrated with Enterprise Manager? 45:22 - Is it integrated with ORAchk/EXAchk? 47:05 - Is there any plan to integrate with DBSAT? 48:32 - Does it require any special or paid Oracle licenses? 50:02 - How do you see this integrating with other AHF components? Mark Scardina, Director of Product Management - Oracle Autonomous Health Girish Adiga, Consulting Member of Technical Staff - Applied Machine Learning Operations AskTOM Office Hours offers free, monthly training and tips on how to make the most of Oracle Database, from Oracle product managers, developers and evangelists. https://asktom.oracle.com/ Oracle Developers portal: https://developer.oracle.com/ Sign up for an Oracle Cloud trial: https://cloud.oracle.com/en_US/tryit
Views: 235 Oracle Developers