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Analyzing and Troubleshooting Oracle Parallel Execution
 
01:58:45
Presented by Randolf Geist 8th May 2013 Oracle parallel execution, a feature of the Enterprise Edition, allows you to automatically distribute the processing of a SQL statement execution among multiple worker processes. This requires additional effort when analysing and troubleshooting such parallel executions, since it adds complexity that is simply not there with normal serial execution where only a single process is involved. In this webinar, Randolf Geist, provides an overview of what these additional challenges are and how these can be approached. For our complete archive, and to sign up for upcoming webinars please go to http://www.red-gate.com/oracle-webinars
Views: 3405 Redgate Videos
Ansible AWX Oracle Database Refresh Demo
 
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In this short video I will demonstrate how an simple Ansible Playbook can be used to refresh multiple Oracle 12c databases in parallel.
Views: 230 Ron Ekins
Automatic Task with Scheduler running jobs
 
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Hi guys today im going to showing you to how to run automatic jobs in oracle very helpful. #AutomaticTaskwithScheduler Oracle database Unbeatable,Unbreakable Platform..
Views: 7506 Oracle World
Maximum Parallelism Is Not Always Best For Performance - Intro to Parallel Programming
 
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This video is part of an online course, Intro to Parallel Programming. Check out the course here: https://www.udacity.com/course/cs344.
Views: 951 Udacity
Analysing Parallel Execution Skew - without Diagnostics / Tuning Pack license
 
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In this part of the tutorial I show how to analyse Parallel Execution Skew if you don't have a Diagnostics / Tuning Pack license. Having such a license can be very helpful for doing such an analysis and the approach explained and demonstrated here has a lot of shortcomings as shown. It's advisable to watch the previous parts first: Part 1: https://www.youtube.com/watch?v=4YKDns1EyTw Part 2: https://www.youtube.com/watch?v=6BAiW6AwhfQ ----------------------------------------------------------------------------------- By the way, can you say "V$PQ_TQSTAT" ten times in a row? :-) If you're interested in reproducing the SQLs analysed here, you can find the scripts as part of the following blog post: http://oracle-randolf.blogspot.de/2014/04/analysing-parallel-execution-skew-data.html
Views: 440 Randolf Geist
Use NOCOPY to Improve Performance
 
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The NOCOPY parameter hint tells the PL/SQL compiler to pass OUT and IN-OUT parameters "by reference" (meaning: do not copy in, nor copy out). The result is better performance and reduced PGA consumption. ====================================== 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.
From Concurrent to Parallel
 
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(Recorded at Jfokus 2016. http://www.jfokus.com) From Concurrent to Parallel As core counts continue to increase, how we exploit hardware parallelism in practice shifts from concurrency - using more cores to handle a bigger workload - to parallelism - using more cores to solve data-intensive problems faster. This talk will explore the different goals, tools, and techniques involved between these various approaches, and how to analyze a computation for potential parallelism, with specific attention to using the parallel stream library in Java SE 8. Brian Goetz, Oracle Brian Goetz is the Java Language Architect at Oracle, and was specification lead for JSR 335 (Lambda Expressions for the Java Language.) He is the author of the best-selling book "Java Concurrency in Practice" and is a frequent presenter at major industry conferences.
Views: 10197 Jfokus
Oracle Performance Tuning - Read and interpret Explain Plan
 
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Connect with me or follow me at https://www.linkedin.com/in/durga0gadiraju https://www.facebook.com/itversity https://github.com/dgadiraju https://www.youtube.com/c/TechnologyMentor https://twitter.com/itversity
Views: 36596 itversity
Thinking in Parallel
 
01:02:25
Views: 1116 Oracle Developers
Analysing Parallel Execution Skew - Using Diagnostics / Tuning Pack license
 
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In this final part of the tutorial I show how to analyse Parallel Execution Skew if you happen to have a Diagnostics / Tuning Pack license. Having such a license can be very helpful for doing such an analysis, however the tools provided by Oracle still do have some shortcomings and bugs. These are demonstrated and finally I show how to perform such an analysis using my XPLAN_ASH utility that offers functionality not available out of the box from Oracle. It's advisable to watch the previous parts first: Part 1: https://www.youtube.com/watch?v=4YKDns1EyTw Part 2: https://www.youtube.com/watch?v=6BAiW6AwhfQ Part 3: https://www.youtube.com/watch?v=VPzUr9ofQwE If you're interested in reproducing the SQLs analysed here, you can find the scripts as part of the following blog post: http://oracle-randolf.blogspot.de/2014/04/analysing-parallel-execution-skew-data.html
Views: 514 Randolf Geist
SQL Server 2008 Partitioned Table and Parallelism
 
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Detailed Article for "Partitioned Table and Parallelism" is available at : http://sqlserver-training.com/sql-server-2008-partitioned-table-parallelism-concept-video Follow us at more Updates at ----------------------------------------- Website : http://sqlserver-training.com/ Twitter : http://twitter.com/dbatag/ Facebook : http://facebook.com/dbatag/ Linked In : http://in.linkedin.com/in/dbatag/ ================================ SQL Server 2008 has removed the bottleneck of single-thread per partition over partitioned tables, which was found in SQL Server 2005. The previous bottleneck can cause performance problems under certain circumstances: On systems with many CPUs, if the table schema has less partitions than there are CPUs, then not all the CPUs will be used to process the query. Some examples: On a 32-way box, a query over a 12-partition table (e.g. a sales table partitioned by month) will only use 12 threads (one on each of 12 CPUs). This means 20 CPUs are potentially idle. On a 4-way box, a query over a 12-partition table only accesses a single partition so will only use one thread (on one CPU). This means 3 CPUs are potentially idle. On tables that have skewed data such that one partition is much larger than another, the length of time the query takes to complete will be bounded by the single thread processing the largest partition. As part of the set of improvements in SQL Server 2008 for data warehousing there will be an option to change the threading behavior for queries over partitioned tables. The new, alternative model is that all available threads process part of each partition and then move into the next partition. This allows all available CPUs to take part in processing the query, which should lead to a drop in the query completion time. The Following video shows, SQL Server 2008 -- Partitioned Table & Parallelism feature and shows graphically, how SQL Server 2008 has improved performance of Partitioned Tables. Visit the following link for more details and SQL Server Tutorials http://sqlserver-training.com/sql-server-2008-partitioned-table-parallelism-concept-video
Views: 17738 DBATAG
All about Parallelism
 
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Kiran Kumar Vallapinni
Views: 210 TeradataPARTNERS
BITMAP  and  BITMAP JOIN INDEX IN ORACLE explained
 
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The video explains BITMAP and BITMAP JOIN INDEX IN ORACLE and when you should create them on a column. BITMAP INDEXES should be dealt with carefully as they can lead to serious performance issues if the table is updated by multiple processes in parallel. Indexing Basics :https://www.youtube.com/watch?v=0X9bbtwTnuE&t=1095s Star and snowflake Schema :https://www.youtube.com/watch?v=Qq4yhhAk9fc&t=17s
Views: 2500 Tech Coach
Using Parallel GROUP BY
 
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This video shows you the behavior of the GROUP BY clause when run in serial and in parallel. 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.
Efficient Function Calls From SQL (Part 5) : Pipelined Table Functions
 
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The fifth part of a mini-series of videos showing how you can improve the performance of function calls from SQL. In this episode, we compare the performance of conventions table functions with pipelined table functions. For more information see: https://oracle-base.com/articles/misc/pipelined-table-functions https://oracle-base.com/articles/misc/efficient-function-calls-from-sql Website: https://oracle-base.com Blog: https://oracle-base.com/blog Twitter: https://twitter.com/oraclebase Cameo by Mike Dietrich : Blog: https://blogs.oracle.com/UPGRADE Twitter: https://twitter.com/MikeDietrichDE Cameo appearances are for fun, not an endorsement of the content of this video.
Views: 11000 ORACLE-BASE.com
How Oracle RAC Cache Fusion Works Part 1 of 6
 
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Learn the mysteries of how Oracle RAC Cache Fusion works. In this lesson you will see the tutorial agenda plus a brief history of Oracle clustering (parallel server) and the problems associated with disk pinging. Cache Fusion is the secret to making Oracle Real Application Clusters (clustering) a scalable database platform. You will learn how cache fusion works, the differences between global cache current and consistent read transfers, the differences between two-way and three-way transfers and the associated wait events. Oracle Ace and author Brian Peasland provides a demonstration of global cache transfers in action by utilizing Oracle Trace. Prerequisites: Knowledge of Oracle Architecture including the concept of an Oracle instance, the buffer cache, how data is moved into the buffer cache and an understanding of wait events. Brian is a certified Oracle ACE who has been in the IT field for over 25 years and has worked as a computer operator, operations analyst, systems administrator, application developer and for more than half of his career as a database administrator. He holds a B.S. in Computer Science and a M.S. in Computer Science, specializing in database systems. Brian has been a member of SearchOracle.com’s Ask The Experts since 2001 and now contributes articles to the site. He regularly contributes to the My Oracle Support and Oracle Technet communities. He can be followed on Twitter on @BPeaslandDBA and maintains a blog at http://www.peasland.net. Brian is the author of “Oracle RAC Performance Tuning” on Rampant TechPress.
Views: 6362 SkillBuilders
How to Install Oracle SQL Developer
 
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Views: 136 T3SO Tutorials
Four Solutions to a Trivial Problem - Guy Steele Jr.
 
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Google Tech Talk, 12/1/2015, Presented by Guy L. Steele Jr. ABSTRACT: We present a small but interesting geometrical problem and then examine four different computational approaches to solving it: a "classic sequential solution" and three different approaches that are amenable to parallel implementation, comparing them to highlight various advantages and disadvantages, including total work required and minimum time to solution. All four solutions are illustrated both pictorially and with working code. We argue that certain approaches work better than others if exploitation of parallelism is to be automated. There will also be at least one joke. About the Speaker https://en.wikipedia.org/wiki/Guy_L._Steele,_Jr.
Views: 24408 GoogleTechTalks
(FIX l 2017) Sorry this application cannot be run under a Virtual Machine.
 
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Hey guys, so I recently tried to run Maple Story on my mac. It was very hard and I finally figured how to get pass all of the problems. I am using Virtual Box on my mac, and running Windows 10. This is a tutorial on how to get pass the error screen, "Sorry, this application cannot be run under a Virtual Machine."
Views: 75497 Tony Phan
What It Means to be a Massively Parallel PostgreSQL DBA
 
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Re-recorded by Pravin Rao and Randy Willard, Pivotal Inc. Orginally presented at Greenplum Summit 2018.
Views: 202 Greenplum Database
SQL Tuning: Troubleshooting SQL Monitor
 
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Do you know what to do if you’re tuning a large SQL statement and it doesn’t show up in SQL Monitor? Pete Dinin does. He’s a senior DBA at Fortune 500 company and president of the Northeast Ohio Oracle Users Group, and he shares his tip in this short video.
Poor Man's Parallel Processing
 
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Check out http://www.pgconf.us/2015/event/63/ for the full talk details. Currently Postgres does not support transparent parallel query. Some third party tools implement parallel on a limited basis through proxies and sharding, but they also require building the entire database around that proxy. This talk will go into how one person (ab)used several features of Postgres and its extensions to achieve limited query parallezation on an existing database. Areas covered will be: - dblink - polymorphic functions and litations thereof - hijacking the COPY FROM PROGRAM command - JSON/HSTORE - parallel index rebuild About the Speaker Corey Huinker is a database programmer and consultant. He specializes in database and query optimization and ETLs. His first database project was implementing language specific TPC-C benchmarks on a AS/400, where he was surprised to learn that RPG was faster than C. He is based in New York City. His past hobbies have included improvisational theater and refereeing roller derby.
Views: 312 Postgres Conference
Oracle Tuning Intro
 
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Oracle Database Background processing Query Execution Architecture
Views: 59 VTMSolution
Real-World Performance - 8 - Set Based Parallel Processing
 
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Check out the entire series on the Oracle Learning Library at http://www.oracle.com/goto/oll/rwp In this video, listen and watch Andrew Holdsworth, Vice President of Oracle Database Real-World Performance at Oracle Corporation, as he demonstrates how set based parallel processing affects performance. 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.
Java Performance: Understand How Parallel GC Works
 
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http://www.informit.com/store/java-performance-livelessons-video-training-downloadable-9780133443554 This video is a sample excerpt from Java Performance LiveLessons. 4+ Hours of Video Instruction Based on the best-selling book,Java Performance, Java Performance LiveLessons covers the latest Oracle and third-party tools for monitoring and measuring performance on a wide variety of hardware architectures and operating systems. Renowned expert, Charlie Hunt, provides viewers with an overview of a modern Java Virtual Machine, the critical performance statistics to monitor within an operating system, JVM, and Java application, an overview of how the HotSpot garbage collectors work, an explanation of the garbage collection output produced by the garbage collectors, and a step-by-step approach to tuning a Java application. Charlie Hunt is the Performance Engineering Architect at Salesforce.com. He was previously at Oracle, where he was responsible for improving the performance of the HotSpot JVM and Java SE class libraries. He has also been involved in improving the performance of the Oracle GlassFish and Oracle WebLogic servers. A regular JavaOne speaker on Java performance, he is coauthor of Java Performance (Addison-Wesley, 2011) and NetBeans™ IDE Field Guide (Prentice Hall, 2005). Skill Level: Intermediate to Advanced Java programmer/developer Who Should Take This Course?: Beginner to Advanced Java and JVM performance tuning engineer, and Advanced Java user / developer What You Will Learn: The differences between a JRE and the JDK, how to install both, and the major components of the HotSpot Java Virtual Machine What performance statistics to monitor and collect and at each level of the software stack: OS, JVM, and Java application How to tune the JVM's garbage collector How to tune, step-by-step, the HotSpot JVM Course Requirements: Fluent with, or a good understanding of, the Java programming language Basic understanding of a Java Virtual Machine is helpful, but not required The LiveLessons Video Training series publishes hundreds of hands-on, expert-led video tutorials covering a wide selection of technology topics designed to teach you the skills you need to succeed. This professional and personal technology video series features world-leading author instructors published by your trusted technology brands: Addison-Wesley, Cisco Press, IBM Press, Pearson IT Certification, Prentice Hall, Sams, and Que. Topics include: IT Certification, Programming, Web Development, Mobile Development, Home and Office Technologies, Business and Management, and more. View all LiveLessons on InformIT at http://www.informit.com/livelessons
Views: 6218 LiveLessons
Learn How OpenMP Enables You to Easily Write Parallel Applications
 
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Learn from the Solaris Studio OpenMP committee representative, Nawal Copty, as she talks about what OpenMP is, how it simplifies parallel programming, and what new features are available in the latest 4.0 specification. If you buy a new system today, it is going to have many cores. OpenMP is an easy way to write applications that leverage these cores to improve performance. For information and to obtain a free copy, go to http://www.oracle.com/technetwork/server-storage/solarisstudio/overview/index.html" 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.
Oracle Data Export and Import using DataPump expdp and impdp
 
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Oracle Data Export and Import using DataPump expdp and impdp
Views: 174057 Abbasi Asif
Java 8 Streams: Why should you use them? Speed!
 
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A short demo showing how java 8 streams take advantage of all the cores in my laptop while a traditional Java iterator does not.
Views: 24163 José Vidal
Time-Lock Puzzles in the Random Oracle Model
 
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Mohammad Mahmoody, Tal Moran, and Salil Vadhan. Crypto 2011, August 15, 2011. Mohammad Mahmoody, Tal Moran, and Salil Vadhan Cornell University, Harvard University, and Harvard University Abstract. A time-lock puzzle is a mechanism for sending messages "to the future". The sender publishes a puzzle whose solution is the message to be sent, thus hiding it until enough time has elapsed for the puzzle to be solved. For timelock puzzles to be useful, generating a puzzle should take less time than solving it. Since adversaries may have access to many more computers than honest solvers, massively parallel solvers should not be able to produce a solution much faster than serial ones. To date, we know of only one mechanism that is believed to satisfy these properties: the one proposed by Rivest, Shamir and Wagner (1996), who originally introduced the notion of time-lock puzzles. Their puzzle is based on the serial nature of exponentiation and the hardness of factoring, and is therefore vulnerable to advances in factoring techniques (as well as to quantum attacks). In this work, we study the possibility of constructing time-lock puzzles in the random-oracle model. Our main result is negative, ruling out time-lock puzzles that require more parallel time to solve than the total work required to generate a puzzle. In particular, this should rule out black-box constructions of such timelock puzzles from one-way permutations and collision-resistant hash-functions. On the positive side, we construct a time-lock puzzle with a linear gap in parallel time: a new puzzle can be generated with one round of n parallel queries to the random oracle, but n rounds of serial queries are required to solve it (even for massively parallel adversaries).
Views: 565 TheIACR
Calibrate IO Test
 
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Here is a video of us running the first calibrate_io test and retrieving the results. For the sake of saving time we are going to show the results from the previous calibrate_io run after kicking off calibrate_io. Also note we used nmon during the middle of the video to note the IO activity.
Views: 1103 HouseOfBrickTech
Working with Valid Intersections in Oracle Planning and Budgeting Cloud Service (PBCS)
 
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Are you facing challenges with data integrity? Are you concerned that data may be going into the wrong intersection? Valid Intersections will allow you apply cross dimensional security and ensure your data is in the correct intersection. This feature will prevent users from entering data where data should not exist. However, this feature is only available in the simplified interface. Watch the demonstration and learn how ensure your data is in the correct intersections.
Views: 1258 KeyPerformanceIdeas
Reward Hacking: Concrete Problems in AI Safety Part 3
 
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Sometimes AI can find ways to 'cheat' and get more reward than we intended by doing something unexpected. The Concrete Problems in AI Safety Playlist: https://www.youtube.com/playlist?list=PLqL14ZxTTA4fEp5ltiNinNHdkPuLK4778 The Computerphile video: https://www.youtube.com/watch?v=9nktr1MgS-A The paper 'Concrete Problems in AI Safety': https://arxiv.org/pdf/1606.06565.pdf SethBling's channel: https://www.youtube.com/user/sethbling With thanks to my excellent Patreon supporters: https://www.patreon.com/robertskmiles Jordan Medina FHI's own Kyle Scott Jason Hise David Rasmussen James McCuen Richárd Nagyfi Ammar Mousali Joshua Richardson Fabian Consiglio Jonatan R Øystein Flygt Björn Mosten Michael Greve robertvanduursen The Guru Of Vision Fabrizio Pisani Alexander Hartvig Nielsen Volodymyr David Tjäder Paul Mason Ben Scanlon Julius Brash Mike Bird Peggy Youell Konstantin Shabashov Almighty Dodd DGJono Matthias Meger Scott Stevens Emilio Alvarez Benjamin Aaron Degenhart Michael Ore Robert Bridges Dmitri Afanasjev Brian Sandberg Einar Ueland Lo Rez C3POehne Stephen Paul Marcel Ward Andrew Weir Pontus Carlsson Taylor Smith Ben Archer Ivan Pochesnev Scott McCarthy Kabilan Kabilan Kabilan Kabilan Phil Philip Alexander Christopher Tendayi Mawushe Gabriel Behm Anne Kohlbrenner Jake Fish Jennifer Autumn Latham
Views: 23512 Robert Miles
SplitJoinInOSB
 
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Implementing parallel processing using split-join in OSB
Views: 10080 Manohar S
Creative Oracle Redo Maneuvers - Seminar Intro
 
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Creative Oracle Redo Maneuvers teaches you how to push Oracle redo throughput to the absolute limit! There are a number of unusual and powerful maneuvers Oracle DBAs can do to reduce commit times, reduce log file sync and log file parallel write wait times. In a nutshell, improve performance when the system is bogged down with redo related issues. This seminar goes deep. Memory architecture and redo processing is explored through creative experimentation, statistical analysis and operating system tracing Oracle processes. It's a fascinating journey that every Oracle DBAs should take. Join Oracle ACE Director Craig Shallahamer as he explores how Oracle's redo processing actually works and how you can use this knowledge to maximize Oracle performance and increase your value as an Oracle DBA. What you are watching in the seminar Introduction. For details go to http://www.orapub.com/video-seminar-creative-redo-maneuvers What You Will Learn - How Oracle redo processing and flow works - The key memory structures and how to fit together - What is the log file sync wait event and why it is feared - How multiple Oracle 12c LGWRs work together - How to creatively use Oracle's "commit write" facility - Creatively using Oracle's ability to change OS process priorities Modules 1. Memory and process redo related architectures 2. Things Change... Always 3. Drilling Into Oracle 12c Multiple LGWRs 4. Breaking The Rules With The "Commit Write" Facility 5. Understanding When Commit Write Shines 6. Changing LGWR OS Priority. Yes! For more information on OraPub, go to www.orapub.com
Views: 503 OraPub, Inc.
How to Troubleshoot NetWorker Parallel Save Stream Backups
 
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This video demonstrates how to troubleshoot NetWorker parallel save stream backups: http://dell.to/2hit2dm
Views: 605 Dell EMC
Is Your Code Parallel-Ready?
 
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The Stream API is set to become as important in the future as the Collections API is today. But to make good use of it, we have to understand the basis of its design in the idea of parallel-ready code, how that idea leads to the new idioms of the Stream API, and how Collectors square the circle that combines parallel execution with mutable data structures. This presentation ends with a practical payoff—it takes some typical collection processing problems and shows systematically how to choose the best stream processing solution for each. Author: Maurice Naftalin Maurice Naftalin is principal developer at Morningside Light Ltd. He has been a developer, researcher and teacher in the software industry for several decades. He is co-author of "Java Generics and Collections" (O'Reilly, 2006), and author of "Mastering Lambdas: Java Programming in a Multicore World" (Oracle Press, forthcoming). View more trainings by Maurice Naftalin at https://www.parleys.com/author/maurice-naftalin-6 Find more related tutorials at https://www.parleys.com/category/developer-training-tutorials
Views: 151 Oracle Developers
Realtime Oracle Performance Monitor
 
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現実逃避中の作品
Views: 132 koji shinkubo
How to Forwarding USB Devices on Oracle VirtualBox
 
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forward USB hardware that is connected to a specific physical USB port of my pc to Oracle VM Virtualbox http://www.avoiderrors.net/?p=17036 Oracle VM VirtualBox Extension Pack https://www.virtualbox.org/wiki/Downloads
Views: 95192 AvoidErrors
Configuring the Kernel Launch Parameters Part 1 - Intro to Parallel Programming
 
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This video is part of an online course, Intro to Parallel Programming. Check out the course here: https://www.udacity.com/course/cs344.
Views: 14008 Udacity
What Is The Rule of Oracle Parse SQL
 
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Typically, a program encourages the consumer for the writing of an SQL declaration and of the variety factors used in the statement. Oracle then parses the MySQL declaration to make sure it satisfies format guidelines. Next, Oracle holds the variety factors to the SQL declaration. That is, Oracle gets the details of the variety factors so that it can study or create their principles. Then Oracle carries out the SQL declaration. That is, Oracle does what the SQL declaration asked for, such as removing series from a desk.
Views: 52 Krutika Meheta
Oracle Performance Tuning onlineTraining
 
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Feel free to contact Call : +91-8870903864 Or E-mail [email protected] ORACLE PERFORMANCE TUNNING 1 – 1: Introduction to Oracle tuning - The top-down approach to tuning - The history of Oracle tuning - A review of the Oracle architecture - The goals of Oracle tuning - Overview of SQL tuning - Oracle network bottlenecks - Oracle RAM usage and bottlenecks - Oracle CPU usage and bottlenecks - Oracle disk I/O overview - Monitoring server (sat, vmstat, top, glance) - Movement toward server consolidation 1 – 2: Oracle disk I/O tuning - History of DASD - Understanding disk I/O - Monitoring disk I/O (AWR, dba_hist_filestatxs) - Sorted hash cluster tables - Disk I/O waits - Oracle data buffer internals (db_cache_size) - Caching data blocks in the PGA (parallel full-table scans) - Blocksize and I/O performance 1 – 3: Oracle CPU Tuning - Finding your cpu_count - Measuring CPU usage with vmstat - Oracle CPU usage - Using processor affinity - _optimizer_cost_model=cpu - Parallel query and CPU 1 – 4: Oracle RAM tuning - all_rows and first_rows optimization and RAM - Multiple data buffers - Multiple blocksizes - Measuring RAM paging - Oracle SGA RAM - Oracle PGA RAM - Using the KEEP pool - Automatic Memory Management (AMM) 1 – 5: Oracle Instance Tuning - Global tuning techniques - Display possible unnecessary large-table full-table scans - Library cache tuning - Finding missing indexes - Tuning the database writer - instance parameter tuning 1 – 6: Oracle SQL Tuning Introduction - SQL tuning hierarchy - SQL tuning goals - optimizer modes - query re-write - cursor_sharing - viewing execution plans (autotrace) - verifying optimal join techniques - parallelizing SQL execution - dynamic statistics - Exercise – count times when a table is invoked - 12c new SQL features - function-based virtual column - adaptive execution plans - 12c new optimizer metadata collection features 2 – 1: AWR and ASH - AWR vs STATSPACK - Reading an AWR report - AWR report analyzer - Basics of predictive modeling for performance - Finding repeating signatures of data 2 - 2: Oracle RAC Tuning - RAC architecture tuning - Tuning disk I/O on RAC - Tuning the cache fusion layer on RAC 2 – 3: Oracle Tuning Pack - creating SQL Profiles - Recommending new indexes - “automatic” SQL Tuning - SQL Performance Advisor (SPA) - recommending object reorganization 2 – 5: Oracle Diagnostic pack - AWR and ASH - real time SQL monitoring - comparing performance periods - Oracle monitoring & alert notifications (setting thresholds) 2 – 6: Oracle Tracing - 10046 tracing - TKPROF tracing - Trace analyzer - Autotrace 3 – 1: Introduction to SQL tuning - Pre-SQL database communications - The evolution of SQL - Declarative languages 3 –2: Optimizing Oracle SQL - Parsing a SQL statement - Semantic parsing - Hard parse vs. soft parse - Decision tree generation - Making SQL reentrant 3 –3: Optimizer statistics - Types of metadata - Index metadata - Segment metadata - Server metadata - System stats 3 – 4: Exposing & Reading Execution Plans - autotrace - SQL*Trace - Determine the steps of an execution plan 3 – 5: altering execution plans - Changing CBO statistics - Changing init.ora SGA parameters - Changing optimizer parameters - Using hints - Using the opt_param hint 3 – 6: Oracle indexing - Overview of Oracle indexing - bitmap indexes - bitmap join indexes - guidelines for creating indexes - function-based indexes (FBI) - index usage monitoring - fishing in the library cache - optimizing indexes - The transient nature of indexing - database modality of workloads - SQL Workload analysis - Identifying EOW, EOM and EOY SQL. - Creating on-demand indexing - oracle text indexes Oracle Performance Tuning training online, Oracle Performance Tuning training material, IBM Websphere Application Server training cost, Oracle Performance Tuning training pdf, Websphere Application Server training in USA uae India, Oracle Performance Tuning training, online Corporate training malaysia Singapore, Oracle Performance Tuning software, Oracle Performance Tuning training in bangalore, Oracle Performance Tuning training institutes in hyderabad, Oracle Performance Tuning training in chennai, Oracle Performance Tuning training in hyderabad, Delhi, Mumbai, Pune, Oracle Performance Tuning, IBM Websphere ApplicationServer webinar, online training singapore, Oracle Performance Tuning eam, Oracle Performance Tuning as a service,Oracle Performance Tuning online Training Oracle Performance Tuning online Training Oracle Performance Tuning online Training Oracle Performance Tuning online Training maximo scheduler, Oracle Performance Tuning (consumer product) Oracle Performance Tuning online Training Oracle Performance Tuning online Training Oracle Performance Tuning online Training Oracle Performance Tuning online Training Oracle Performance Tuning online Training , Post Training Support
How To Fix Sorry, This Application Cannot Be Run Under A Virtual Machine Error
 
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In this video we will see how to fix sorry, this application cannot be run under a Virtual Machine. This solution will work on any virtual machine(Oracle Virtualbox,Parallels and Vmware(vmware fusion,vmware player) and Supported operating systems( Windows (Windows XP, Windows Vista,Windows 7, Windows 8, Windows 8.1,Windows 10,Windows Server includes all 32bit and 64bit Version ), Linux (Debian/Ubuntu/Fedora/openSUSE/) and Mac.Some games(arkham city,combat arms,civilization 5,dead space 3,jailbreak, knight online,lineage,lineage 2,lost saga, need for speed games(nfs),nexos games,taig,crossfire,League of Legends) and Softwares(bitdefender,cyberlink powerdvd) cannot run under virtual machine, So we are going to fix this error(virtual machine error) using registry editor on Windows. Follow these simple steps to fix sorry, this application cannot be run under a Virtual Machine 1) Go To Windows Search 2) Search Run 3) Open Run 4) Type regedit 5) Click OK 6) Click Yes 7) Open HKEY_LOCAL_MACHINE 8) Open HARDWARE 9) Open ACPI 10) Open DSDT 11) Right Click On VBOX_ And Select Rename 12) Rename It NOBOX_ 13) Open HKEY_LOCAL_MACHINE 14) Open HARDWARE 15) Open DESCRIPTION 16) Click On System 17) Right Click On SystemBiosVersion 18) Select Modify 19) Type NOBOX -1 and press enter 20) Click OK 21) Right Click On VideoBiosVersion 22) Select Modify 23) Erase Everything 24) Click OK 25) Close Registry Editor Contact Us Facebook : https://www.facebook.com/SoftTrickChannel Wikipedia : https://en.wikipedia.org/wiki/User:SoftTrick Twitter : https://twitter.com/SoftTrickChnl Instagram : https://www.instagram.com/softtrick Reddit : https://www.reddit.com/user/SoftTricks Tumblr : https://www.tumblr.com/blog/softtrickchannel Youtube : https://youtu.be/WoXNz2bjmVE Desktop Wallpaper Photo Miguel Á. Padriñán Link - https://www.pexels.com/photo/art-leaf-white-flower-68558/ Background Music Provided by NCS (Nocopyrightsounds) Electro-Light - Symbolism Link- https://www.youtube.com/watch?v=__CRWE-L45k Follow artist Electro-Light https://www.facebook.com/ElectroLightOfficial https://soundcloud.com/maskedacoustic https://twitter.com/ElectroLightEDM https://www.youtube.com/user/ElectroLightOfficial Follow NCS Snapchat: ncsmusic 24/7 Radio: http://ncs.io/Radio http://soundcloud.com/NoCopyrightSounds http://instagram.com/NoCopyrightSounds http://facebook.com/NoCopyrightSounds http://twitch.tv/NoCopyrightSounds http://twitter.com/NCSounds http://spoti.fi/NCS
Views: 22704 SoftTrick
Automatic Big Table Caching
 
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This is the second of two demonstrations about In-Memory caching new features, introduced in Oracle Database 12.1.0.2. This one illustrates the Automatic Big Table caching feature enhancing the in-memory parallel query capabilities of the Oracle Database in both single instance and Oracle RAC environments. An optional section of the buffer cache, called the big table cache, is used to store data for serial and parallel table scans. 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.
Day 1 - Parallel Session Machine Learning: Guillaume Obozinski - Ecole des Ponts
 
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DataLead Conference Paris, 5 - 6 November 2015 Day 1 - Parallel Session Machine Learning 04:00 pm to 04:45 pm Guillaume Obozinski - Ecole des Ponts Tight convex relaxations for sparse matrix factorization ABSTRACT In this talk, I will consider statistical learning formulations where the parameter is a matrix that is the sum of a small number of sparse rank one (non-orthogonal) factors. Such formulations are relevant e.g. for social network modelling, subspace clustering, sparse bilinear regression and multi-factor sparse PCA analysis. Based on an assumption that the sparsity of the factors is fixed and known, I will present a matrix norm which provides a tight although NP-hard convex relaxation of the learning problem. I will discuss the sample complexity of learning the matrix in the rank one case and show that considering a computationally more expensive convex relaxation leads to an improvement of the sample complexity by an order of magnitude as compared with the usual convex regularization considered, like combinations of the \(\ell_1\)-norm and the trace norm. Time permitting, I will describe an algorithm, relying on a rank-one sparse PCA oracle to solve the convex problems considered, and illustrate that, in practice, when state-of-the-art heuristic algorithms for rank one sparse PCA are used as surrogates for the oracle, our algorithm outperforms other existing methods. (work in collaboration with Emile Richard and Jean-Philippe Vert).
Views: 127 ENSAE ParisTech
Google Hangout: Countdown to v9.6 - Welcome Parallelism to Postgres!
 
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It has just been a few months since the PostgreSQL9.5 is released.. We have got some of our customers excited about great new features and performance enhancements in v9.5. But here we are already taking a peak into the next version, and we find it awesome! One of the most awaited features - parallelism makes it to Postgres. The infrastructure for parallelism has been added over last few releases but the first parallel operation in query execution will be seen only in v9.6. Join us on this hangout to see further how it works and what will be the benefits of parallelism to you as a user. Speaker: Sameer Kumar – Database Solution Architect at Ashnik
Views: 293 Ashnik
Teradata SQL Tutorial-How to create new connection in Teradata
 
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Teradata SQL Tutorial-How to create new connection in Teradata. Go to http://usefulfreetips.com/Teradata-SQL-Tutorial/ for more Teradata Tutorials.
Views: 44164 TeradataSQLTutorials
Calculation Time on the CPU - Intro to Parallel Programming
 
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This video is part of an online course, Intro to Parallel Programming. Check out the course here: https://www.udacity.com/course/cs344.
Views: 12034 Udacity

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