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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: 3433 Redgate Videos
The Parallel - Oracle (OFFICIAL MUSIC VIDEO)
 
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Dreambound https://www.facebook.com/dreamboundmusic https://www.instagram.com/dreamboundmusic http://vk.com/dreamboundmusic https://twitter.com/dream_bound http://dreambound.storenvy.com ________________________________ Artist: The Parallel Song: Oracle Album: 'Weaver' (2018) Hometown: Toronto, Canada Website: https://www.facebook.com/TheParallel Merch: https://store.invoguerecords.com/collections/the-parallel ________________________________ Label: InVogue Records Website: https://www.invoguerecords.com ________________________________ Lyrics: Will I set sail again? I never thought that I would see the truth Confusion, seclusion, I am left in an empty room Build me up to crumble down again Don’t let them in A voice behind the door says, “Do not be afraid”. Do you trust your inhibitions To protect you along the way? Speak with honesty, No one's listening. Too much regret Made its way into my head And now I only see, what the worst of me believes I am the constant, my past is the problem Ridding myself of the excess My core is exposed Open up these wounds Lost in my atrophy I am divided by all that I am And all, all that I wanted to be God of dialect, have I overstepped the truth? What do I hold true? Each day a stupor, fade to the next God of dialect,have I disappointed you? I trust the process Too much regret made its way into my head And now I only see what the worst of me believes Will I forget what directions I’ve been led? Or find my own inside The notion that I won’t be swayed I won’t be swayed, I won’t be. ________________________________ Credits: Recorded, mixed and mastered by Nick Ingram @ Capital House Studios Video by The Trenches Media Inc.
Views: 20546 Dreambound
The Parallel - Oracle
 
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Off the album, "Weaver" FOLLOW ON SOCIALS http://facebook.com/TheParallel http://twitter.com/TheParallelCA http://instagram.com/theparallel LYRICS: Oracle Will I set sail again, I never thought that I would see the truth, Confusion, seclusion, I am left in an empty room, Build me up to crumble down again, Don’t let them in, A voice behind the door says, “Do not be afraid”. Do you trust your inhibitions to protect you along the way? Speak with honesty, no one's listening, Too much regret, Made its way into my head. And now I only see, what the worst of me believes, [Chorus] I am the constant, My past is the problem, Ridding myself of the excess, My core is exposed, Open up these wounds, Lost in my atrophy, I am divided by all that I am, And all, all that I wanted to be, God of dialect, have I overstepped the truth? What do I hold true? Each day a stupor, fade to the next, God of dialect,have I disappointed you? I trust the process, Too much regret made its way into my head, And now I only see what the worst of me believes, Will I forget, what directions I’ve been led? Or find my own inside? The notion that I won’t be swayed, I won’t be swayed, I won’t be.
Views: 1354 invoguerecords
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.
Efficient Memory and Thread Management in Highly Parallel Applications
 
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Many tools exist for analyzing memory usage, but how do you control your application's memory use while the application is running? How do you coordinate memory use among the various threads? In this session, you will learn strategies for tracking and balancing your memory and threads to achieve maximum performance while avoiding dreaded out-of-memory (OOM) exceptions. The intended audience is Java technology developers who want maximum effectiveness and efficiency from their threads and memory. Key topics: • Runtime tracking of memory usage • Minimizing resource usage • Managing and balancing memory usage of multiple threads • Bulletproof thread control to avoid wasted resources" Copyright © 2013 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.
Why Has an Index Broken My Query?
 
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Sometimes Oracle can give unexpected exceptions. This often happens when working with dates stored as strings. In this video, Chris investigates why adding an index to a varchar storing dates could cause a query to fail. He explains why this happens. Then he shows workaround to avoid this. You can download the scripts in this video from LiveSQL at: https://livesql.oracle.com/apex/livesql/file/content_CVN82PZQWQSUFYMOVKG0VI19T.html ============================ 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: 2919 The Magic of SQL
Oracle Coherence Data Grid
 
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Google Tech Talks June 27, 2007 ABSTRACT Data Grid-based infrastructures are being developed, deployed and used to achieve unlimited application scalability and continuous availability. This presentation focuses on Oracle Coherence Data Grid and how it's capabilities, which includes coherent in-memory caching, dynamic data partitioning, even processing, parallel query and process execution and on how these capabilities enable achievement of these goals and more. In this presentation we will address: · How Coherence capabilities function, such as coherent in-memory caching, dynamic data partitioning, and parallel query and process execution, and how they enable a new generation of grid...
Views: 35150 GoogleTechTalks
Thinking in Parallel
 
01:02:25
Views: 1127 Oracle Developers
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: 1048 Udacity
How to create Parallel Approval in Oracle EBS R12 AME
 
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This oracle demo video our Oracle Expert covers the topic- definition of parallel approval, create new approval group, create rules and conditions to set up parallel approvals in Oracle EBS r12 Approval Management Engine (AME). 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 Follow Us On: Facebook: https://www.facebook.com/apps2fusion Twitter: https://twitter.com/apps2fusion LinkedIn: https://www.linkedin.com/company/apps2fusion Youtube: www.youtube.com/c/apps2fusion
Views: 2503 apps2fusion
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: 525 Randolf Geist
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: 11548 ORACLE-BASE.com
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: 581 TheIACR
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: 38746 itversity
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: 6351 LiveLessons
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.
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: 442 Randolf Geist
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: 141 ENSAE ParisTech
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: 10937 Jfokus
(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: 80049 Tony Phan
How to Install Oracle SQL Developer
 
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Views: 171 T3SO Tutorials
Oracle Tuning Tutorial - Long Full Table Scans Part 5 of 5
 
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See all 5 tutorials, free, at SkillBuilders.com/OracleTuningFullTableScans. In summary, serial full table scans were always indirect before 11.2, parallel scans always direct before 11.2. These are the two critical parameters. That hidden parameter _serial_direct_read, remember, defaults to auto so your application may start behaving very differently as you upgrade from 11.2.01 or 11.2.02. Parallel_degree_policy, that defaults to manual. But again, it becomes an option when you go to 11.2 to enable the automatic facility which allows not only automatic tuning to the degree of parallelism but also enables the ability to make indirect reads when doing a full table scan.
Views: 1587 SkillBuilders
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: 3731 Tech Coach
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: 311 Ron Ekins
SQL: Introduction to Optimizer in Oracle
 
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In this tutorial, you'll know what is the meaning and use of Optimizer in Oracle
Views: 17684 radhikaravikumar
Tuning Oracle Using An AWR Report - Seminar Intro
 
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Tuning Oracle Using An AWR Report teaches Oracle DBAs how to make Oracle Database systems fast using standard Oracle reports and performance data. This seminar will lead you through the entire process turning you into a respected performance analyst. Your solutions will be spot-on and everyone will know it. When users call about a performance problem, you will know what to do, do it fast, and be able to explain the situation with clarity and confidence. For details to go http://www.orapub.com/video-seminar-tuning-oracle-using-an-awr-report PART ONE of this seminar builds your strong foundation. You will learn how an Oracle Time Based Analysis combined with OraPub's 3-Circle Analysis are used to methodically expose problems and develop solutions. You will understand the larger performance picture that escapes most DBAs. It is foundational and it sets you up for success! PART TWO of this seminar focuses on constructing a time based diagnostic framework, developing targeted tuning solutions fast, and turning this all into a compelling story. Your solutions will make sense and your analysis will be clear. Your peers and management will trust and respect your work. Do NOT watch this seminar if you are looking for training about all the AWR report sections or how to work through an AWR report from top to bottom desperately searching for problems and solutions. If this is you, then I recommend you purchase one of the many available AWR books and also my Oracle Performance Firefighting book. BUT, if you are looking to solve any performance problem that comes your way based on an AWR report, then this seminar is exactly what you want. Tuning Oracle Using An AWR Report - Part 1 1. The Big Picture: How The Pieces Fit Together 2. Why A Time Based Analysis Is Awesome 3. Oracle Processes Are CPU Suckers! 4. Oracle Processes Hate To Wait! - Part 1 5. Oracle Processes Hate To Wait! - Part 2 Tuning Oracle Using An AWR Report - Part 2 1. Building A Diagnostic/Troubleshooting Framework - Part 1 2. Building A Diagnostic/Troubleshooting Framework - Part 2 3. Finding Multiple Performance Solutions Fast! - Part 1 4. Finding Multiple Performance Solutions Fast! - Part 2 5. How To Create A Great Performance Story - Part 1 6. How To Create A Great Performance Story - Part 2 7. Resources: The Learning Never Stops! For more information go to www.orapub.com
Views: 17447 OraPub, Inc.
|🌬️AIR BI-WEEKLY SOULMATE 🌬️| BLAST FROM THE PAST - PARALLEL LIVES | JAN 15TH-31ST TAROT
 
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🌬️Welcome to this bi-weekly soulmate tarot reading for Air signs! Gemini/Libra/Aquarius - Sun/Moon/Rising/Venus! 🌬️ Thanks for all the love! Thanks for subscribing, commenting and liking! Please check out my info below for details of my private readings (limited spaces available weekly) and come follow me on social media! ******************************** 🔮 To schedule a reading with me, please visit: https://www.leannejuliette.com/tarot/ I offer 30 minute and 60 minute tarot readings via video. All my Tarot readings are video recordings for you which will be emailed to you within 7 days of booking. I only do a limited number per week. 🔮To support my channel for the Free Readings I provide on YouTube, donations are always appreciated via www.paypal.me/leannejenkins 🔮 JOIN my Awakened Rebels Facebook Community – https://www.facebook.com/groups/awakenedrebels/ 🔮 FOLLOW ME on Facebook - https://www.facebook.com/leannejenkins1980 🔮 LIKE my Facebook Business Page: https://www.facebook.com/leannejulietteuk/ 🔮 FOLLOW me on Instagram: https://www.instagram.com/leannejuliette 🔮 FIND me on Pinterest: https://www.pinterest.co.uk/leannejuliette 🔮 VISIT my website: https://www.leannejuliette.com 🔮 READ my blog: https://www.leannejuliette.com/blog **************************************** DISCLAIMER: Please note that the Intuitive Readings I provide are energy work and energy is always evolving, therefore, please use my readings as a guideline only. Please also note that you ALWAYS have FREE WILL and can change the outcome of readings based on your energy. Not all readings on this channel will resonate with you. Please take what resonates. I am also required to state that all readings are for entertainment purposes only and are not intended to diagnose or treat any medical conditions, pregnancy or to provide any legal assistance. In this instance, please seek medical/legal support from a qualified practitioner. #awakenedrebels #tarot #soulmate #airsigns #gemini #libra #aquarius #twinflame #divinefeminine #divinemasculine #tarotlove #twinflames #love #twinflametarot #soulmatetarot #psychicreading #january2019 #leannejuliette
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: 24686 GoogleTechTalks
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: 318 Postgres Conference
Using Skewed Oracle Performance Data To Your Advantage - Seminar Intro
 
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Using Skewed Performance Data To Your Advantage is an important seminar for all DBAs because EVERY Oracle DBA has experienced the effects of skewed performance data, but most don't know how to use that knowledge to their advantage. Have you ever had different groups of users experience different response times from the same exact SQL? Has your IO Admin said the IO response time is fine, but you know single block IOs are taking around 25ms? If you have experienced something like this, then you have likely experienced skewed performance data. I designed this seminar so you will know exactly how to avoid this situation of skewed Oracle wait times and SQL elapsed times. I will teach you how to gather the appropriate data, understand the data and visually demonstrate the situation. This seminar is going to have a deep impact on your Oracle performance work. The skills I teach you will help you devise a sensible solution. Join me for a practical and entertaining journey as we explore the truth about elapsed times and wait events times, turning a potential disaster into your advantage. For details go to http://www.orapub.com/video-seminar-skewed-performance-data This contains eight modules: 1. Introduction: Revealing deception (this video) 2. Understanding your data 3. Common histograms in Oracle performance analysis 4. The problem: Skewed wait times 5. My advantage: Using the skewed wait times 6. The problem: Skewed elapsed times 7. My advantage: Using the skewed elapsed times 8. Resources and seminar close What you will learn: * Know what skewed data is * Be able to communicate why skewed data is a serious problem * Be able to recognize skewed data * Know how to gather individual wait event occurrence times, not average * Know six ways to gather individual SQL execution times, not average * Understand, demonstrate and communicate if skewed data is a problem * Recognize the five common statistical distributions * Be able to describe data using one picture and two statistics * Know histogram construction details * Know how to use the difference between the mean and median * Be able to install and use the free stats package, R * Be able to use the difference between the mean and median * Know how a histogram can cause faulty thinking * Understand why v$event_histogram deceives * Be able to use an AWR and Statspack report to recognize skewed data problems * Know how to create a proper SQL execution time histogram * Know how to create a proper wait event occurrence histogram For more information: http://www.orapub.com
Views: 431 OraPub, Inc.
Realtime Oracle Performance Monitor
 
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現実逃避中の作品
Views: 137 koji shinkubo
Wednesday October 4: Room 2011: Oracle Code Sessions
 
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https://www.oracle.com/javaone/index.html 08:30: Ask the OpenJ9 Architects 09:30: Make Your CPU Cores Sweat with Parallel Streams 10:45: Java at Speed: Getting the Most Out of Modern Hardware 12:45: Lambda Chops: Recipes for Simpler, More Expressive Code 01:45: Asynchronous API with CompletableFuture: Performance Tips and Tricks 02:45: Flow and the Future of Reactive Systems on the JVM 04:30: The Good Cop/Bad Cop Guide to Java 9 05:30: It’s Java, but Not As We Know It
Views: 825 Java
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.
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: 1352 KeyPerformanceIdeas
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: 30603 SoftTrick
What Is The Use Of LOB In Oracle?
 
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Introduction to lobs oracle help center. Use oracle lob's apache db project the software lobs and undo management not as simple i thought large objects (lobs). Using oracle lob data types with ojbbackgrounder large objects in databases. Htm url? Q webcache. Object datatypes and lobs oracle help center. Introduction to lobs oracle help center docs. Space usage of lobs, general behavior and in otm database lob space oracle dba scripts. Two type of lobs supported. This chapter contains these topics this describes the usage and semantics of lobs that you need to be familiar techniques use when accessing a cell in lob column differ table print_media oracle database sample schema pm, is used has introduced many new multi media datatypes, or datatypes if just as an indexing system file locations why not long raw difference between internal external. Those stored as operating system files, such bfiles large objects (lobs) are a set of datatypes that designed to hold amounts data. How to determine oracle lob storage footprint? Database and xmltype data types (oracle connector) ibm. Object data types and lobs oracle help centeroracle large object (lob) supportoracle lob working with blob clob devart. Oracle cd b10501_01 adl01int. Where is lob data stored? . [email protected] select count( ) from external tables containing lob data. Storing data in lobs enables you to access and manipulate the efficiently your application use lob (large object) columns store large amounts of (maximum existing long raw attributes is recommended by oracle this chapter introduces objects (lobs) discusses how types are used development. Lob types support both input and output streaming. A lob can hold up to a maximum size ranging from 8 terabytes 128 depending on how your database is configured. This articles shows how external tables are used to read clob and blob data, enabling parallel load operations of large 7 jan 2014 what is lob (large object) a group oracle database build in data types. Tanel poder's performance operations on tables and views that contain lob data in oracle finding table name for segment base external containing. The microsoft 12 apr 2012 so i have a lob segment taking up lots of space need to find out the corresposding table for. Using lob data types in oracle database allows user to store 14 sep 2011 how the dba can find size of a segment, space that is allocated and unused within if you've marked blob column as deduplicated then you run something like following get stats on actual bytes used connector supports reading writing bfile, blob, configure use inline form, set enable Introduction lobs help center. Your database the most 25 jan 2010 as soon old versions of lob data pages start to occupy more than pctversion amount used space, oracle tries further, oracle8 provides call interface (oci) and pl sql package internal s use copy semantics participate in transactional model 22 apr 2012 there was a question l about where is undo for rollback & consistency,
Identifying High Risk Oracle SQL Before The Upgrade - Seminar Intro
 
11:36
Everyone knows identifying the high risk Oracle Database SQL AFTER the upgrade is easy. But before the upgrade? That's difficult. You need to be Identifying High Risk SQL Before The Upgrade. Comparing SQL elapsed times is simply not good enough. Any differences between production and test makes this approach futile. Why? Because there are different business scenarios, workloads, Oracle releases, application releases, hardware configurations... you get the idea. In this seminar I aggressively deal with these complex issues, regardless of the upgrade type. If you are involved with helping to ensure a smooth upgrade, you need to put into practice what I teach in this seminar. It's practical, insightful and a lot of fun. What you are watching in the seminar Introduction. For details go to http://www.orapub.com/video-seminar-id-high-risk-sql-upgrade What You Will Learn - Why SQL elapsed times can be different on "similar" systems - How to use workload intensity and database time to ID at-risk SQL - Why "similar" systems can have very different workload intensities and database time profiles - How to quickly profile two systems using a time based methodology - How to properly compare SQL elapsed times on systems with different CPUs - How to gather CPU "speed" data - How to standardize SQL elapsed times for appropriate comparison - How workload intensity factors into SQL elapsed times - How different system workloads can falsely tag SQL as risky - How different system workloads can miss risky SQL - Why functionally focused benchmarks make SQL elapsed time comparisons unreliable - How to identify risky situations when the same SQL is used in different business scenarios, runs with - different bind variables and uses different interim table names - How to deal with situations when a benchmark runs overlapping business scenarios at the same time - How to develop a statistical "fingerprint" based on module, action or something else - How to pull elapsed time data from AWR tables - How to use the free statistical package R to compare two (think: PROD and QAT) elapsed time fingerprints - How to use the statistical "fingerprint" results to identify a high risk situation Modules 1. The Truth Hurts: Production vs QAT Realities 2. How To "Fingerprint" An Oracle System For Comparison 3. How To Compare SQL On Different CPU Speed Systems 4. How To Compare SQL On Different Workload Systems 5. How To ID Risk In Highly Business Focused Benchmarks - 1 6. How To ID Risk In Highly Business Focused Benchmarks - 2 For more information about OraPub, go to www.orapub.com
Views: 162 OraPub, Inc.
79/125 Oracle PLSQL: Design consideration  / parallel_enable/ result_cache
 
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تعلم اوراكل حتى الاحتراف Learn Oracle PLSQL EXAM 1Z0-144 https://docs.oracle.com/database/121/DBLIC/editions.htm#DBLIC116
Views: 498 khaled alkhudari
How to Troubleshoot NetWorker Parallel Save Stream Backups
 
09:31
This video demonstrates how to troubleshoot NetWorker parallel save stream backups: http://dell.to/2hit2dm
Views: 682 Dell EMC
Creative Oracle Redo Maneuvers - Seminar Intro
 
09:46
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: 506 OraPub, Inc.
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: 98220 AvoidErrors
Oracle PO Purchase Requisition approval Process, www.srdtechnolgies.in, Mobile:+91 9703756999
 
01:39:28
Oracle Purchasing Purchase Requisition, www.srdtechnolgies.in, Mobile:+91 9703756999
Views: 15452 srd technologies
Using Auto DOP, Part 2
 
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This video is the second in a two-part presentation on how to use the Auto DOP feature of Oracle Database 11g, Release 2. 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.
Is Your Code Parallel-Ready?
 
01:05:04
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
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.
KISS series on Analytics: 05 Dealing with null
 
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Welcome to the KISS video series. Solving problems that typically required complicated SQL in the past, that can now be easily solved with Analytic SQL syntax. In this session, we look at using our ranking functions when nulls are present. Scripts: https://livesql.oracle.com/apex/livesql/s/cokpdete3hiy3jo0yzoa4eerz Watch the entire Analytics playlist at https://www.youtube.com/playlist?list=PLJMaoEWvHwFJDyhMLCkNSSUQWw9waFkIj ========================================­­============== 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: 1361 Connor McDonald
The Oracle Tuning Service of Your Dreams
 
00:41
http://themagnumgroup.net/oracle-tuning.htm Have you gasped in disbelief when a local Oracle tuning service quoted $400 per hour for tuning your database? Imagine how delighted you will feel when you discover our Oracle tuning experts charge you less than half of that for remote repair of the same application! Our Oracle tuning experts have thousands of hours' experience tuning very large Oracle databases and have profound technical knowledge of the nuances of an Oracle system. For instance, they use a combination of ratio analysis, wait analysis and workload analysis when they tune a malfunctioning database. Don't agonize over high Oracle tuning costs: get in touch with us using the form at http://themagnumgroup.net/oracle-tuning.htm for a free consultation on the approach we would use to solve your particular Oracle database problem.
Views: 451 TMGvblog
Practical Performance: Understand the Performance of Your Application
 
44:41
This session discusses how you can maximize the performance of your application deployment with tools that are native to your server platform as well as cross-platform Java analysis and monitoring tools. The session begins with systematic steps you can take to locate a performance problem in a complex system and moves on to analysis you can do to understand the root cause of the problem. The picture is completed by consideration of the tools and techniques available to monitor application performance in normal operation so that you can catch performance issues before they build up into serious problems. Copyright © 2013 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.

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