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Why Use Parallel Processing?
 
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This video compares the use of parallel and serial processing for the same SQL query. 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.
Oracle Hints Tutorial for improving performance
 
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Oracle Hints Tutorial for improving performance APPEND PARALLEL JOIN INDEX NO_INDEX SELECT /*+ FIRST_ROWS(10) */ * FROM emp WHERE deptno = 10; SELECT /*+ ALL_ROWS */ * FROM emp WHERE deptno = 10; SELECT /*+ NO_INDEX(emp emp_dept_idx) */ * FROM emp, dept WHERE emp.deptno = dept.deptno; SELECT /*+ INDEX(e,emp_dept_idx) */ * FROM emp e WHERE e.deptno = 10; -- SELECT /*+ INDEX(scott.emp,emp_dept_idx) */ * FROM scott.emp; SELECT /*+ AND_EQUAL(e,emp_dept_idx) */ * FROM emp e; SELECT /*+ INDEX_JOIN(e,emp_dept_idx) */ * FROM emp e; SELECT /*+ PARALLEL_INDEX(e,emp_dept_idx , 8) */ * FROM emp e; SELECT /*+ LEADING (dept) */ * FROM emp, dept WHERE emp.deptno = dept.deptno; SELECT /*+ PARALLEL(8) CACHE (e) FULL (e) */ * FROM emp e ; SELECT /*+ PARALLEL FULL (e) */ * FROM emp e ; SELECT /*+ PARALLEL USE_MERGE (emp dept) */ * FROM emp, dept WHERE emp.deptno = dept.deptno; -- SORT Merge Join SELECT /*+ PARALLEL USE_HASH (emp dept) */ * FROM emp, dept WHERE emp.deptno = dept.deptno; -- Hash Join SELECT /*+ PARALLEL */ * FROM emp e ; INSERT /*+ APPEND */ INTO mytmp select /*+ CACHE (e) */ *from emp e; commit;
Views: 9468 TechLake
Oracle Hints Tutorial for improving performance with examples
 
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Oracle Hints Tutorial for improving performance with examples Oracle Hints Oracle Tutorial for beginners SQL Tutorial for beginners SQL Hints SQL Performance tuning
Views: 4358 TechLake
Parallel Query Has Arrived!
 
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Views: 889 PGCon
Oracle 11g Hints Overview
 
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In this Video tutorial we will discuss about Optimizer hints in Oracle. What is optimizer hint, when & why its needed. Different Category of hints. Description of mostly used hints. Demonstrate how query plan can change with the influence of hint.
Views: 53740 Anindya Das
Oracle Parallel Execution Plans Deep Dive
 
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A presentation about understanding the essentials of Oracle Parallel Execution and how to read the corresponding execution plans
Views: 3218 Randolf Geist
Demonstrating Oracle DB Elapsed Time and Wall Time With Parallel Query
 
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Is it really true? In my recent postings I wrote that when using parallel query a SQL statement's wall time is roughly equal to its elapsed time divided by the number of parallel query slaves. To check I ran an experiment and posted the results. The results are both obvious and illuminating. If you don't want to read but just sit on the couch and watch a video, you're in luck! I created a special video clip demonstrating what I wrote about. The main video clip is from my OraPub Online Institute video seminar, Tuning Oracle Using An AWR Report - Part 1. (NOT Part 2 as the video shows) From my blog posting: http://blog.orapub.com/20140907/watch-oracle-database-elapsed-time-and-wall-time-with-parallel-query.html For more information on OraPub r for more great education, go to www.orapub.com
Views: 1226 OraPub, Inc.
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: 18463 radhikaravikumar
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.
Hierarchical Queries (Oracle)
 
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Hierarchical Queries in Oracle, Using CONNECT BY PRIOR and START WITH clause. Visual Example using a practical scenario.
Views: 5955 CodeSmith 001
eXtreme Parallel Processing for Oracle
 
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Is your current processing task complex and depending on CPU? Does it take too much time processing your PL/SQL eventhough you have strong HW? Don't have time to rewrite PL/SQL sources to optimize them? If your answer is yes, then our product eXtreme Parallel Processing for Oracle is exactly for you
Views: 55 Petr Jezek
oracle parallelism
 
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Views: 170 Fatma Aksu
eXtrem Parallel Processing for Oracle
 
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eXtrem Parallel Processing for Oracle
Views: 194 Petr Jezek
Enhancing Tableau Data Queries
 
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Speaker- Alex Lokhov, Alex Eskinasy Check out the various techniques for optimising live connections in Tableau. We will tackle techniques to optimise query performance from the Tableau side as well as the database side. Expect a recap of general performance tips in Tableau, an understanding of what happens under the covers (i.e. order of execution in Tableau, performance recording and implementation plan in a database), and a review of joins vs. blends vs. cross-database joins, performance implications, resulting queries, and more.
Views: 5004 Tableau Software
Parallelism in SQL
 
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Parallelism in SQL watch more videos at https://www.tutorialspoint.com/videotutorials/index.htm Lecture By: Mr. Parth Panjab, Tutorials Point India Private Limited
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: 43365 itversity
Tutorial: Algorithmic Aspects of Parallel Query Processing
 
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Tutorial: Algorithmic Aspects of Parallel Query Processing
Views: 266 Sigmod 2018
Parallel Query In PostgreSQL  Robert Haas
 
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I and others have been working on bringing parallel query for PostgreSQL for several years now, but PostgreSQL 9.6 is the first release expected to include a user-visible feature. And it's pretty cool. In this talk, I'll give an overview of the development of this feature, where we are now, and what the future might hold. I will discuss the overall architecture of parallelism in PostgreSQL, give examples of queries that can be accelerated by the features expected to be in PostgreSQL 9.6, and talk about what's not done yet. http://www.pgconf.us/2016/event/147/parallel-query-in-postgresql/
Views: 1522 Postgres Conference
Oracle NoSQL Cloud Service
 
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Oracle NoSQL Database, scale your data with the Cloud. A scale-out, low latency key-value database service including support for JSON and Table data types. Built-in high availability, transactions, parallel query, and more. https://cloud.oracle.com/nosqldatabase ================================= For more information, see http://www.oracle.com/goto/oll 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.
Using Partition Wise Join
 
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This video shows you the use of partition wise join in parallel processing. 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.
Using Parallel and Cardinal Hint
 
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This is a demo on using Parallel and Cardinal Hint to tune queries in ILM.
Views: 1330 Informatica Support
Analyzing and Troubleshooting Oracle Parallel Execution
 
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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: 3480 Redgate Videos
New in Postgres 9.6: Parallel Queries
 
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In this episode, we'll be looking at a new feature in Postgres 9.6, parallel queries. To learn more and for full transcript visit us at https://www.pgcasts.com This episode is sponsored by Hashrocket a consultancy specializing in PostgreSQL. Visit us at https://hashrocket.com
Views: 3641 PG Casts
SQL Tutorial 12 Advanced Subqueries returning multiple columns
 
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SQL Tutorial on Advanced Subqueries returning multiple columns Check out our website: http://www.telusko.com Follow Telusko on Twitter: https://twitter.com/navinreddy20 Follow on Facebook: Telusko : https://www.facebook.com/teluskolearnings Navin Reddy : https://www.facebook.com/navintelusko Follow Navin Reddy on Instagram: https://www.instagram.com/navinreddy20 Subscribe to our other channel: Navin Reddy : https://www.youtube.com/channel/UCxmkk8bMSOF-UBF43z-pdGQ?sub_confirmation=1 Telusko Hindi : https://www.youtube.com/channel/UCitzw4ROeTVGRRLnCPws-cw?sub_confirmation=1
Views: 68343 Telusko
DML Processing in an Oracle Database -  DBArch Video 8
 
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This video explains the steps involved in processing a DML statement in an Oracle Database Server. Our Upcoming Online Course Schedule is available in the url below https://docs.google.com/spreadsheets/d/1qKpKf32Zn_SSvbeDblv2UCjvtHIS1ad2_VXHh2m08yY/edit#gid=0 Reach us at [email protected]
Views: 60263 Ramkumar Swaminathan
What Is Oracle Elapsed Time, Wall Time And It's Relationship With Parallelism
 
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Blog link: http://blog.orapub.com/20140818/What-Is-Oracle-Database-Elapsed-Time-And-Wall-Time-With-A-Parallelism-Twist.html In this post I'm focusing on SQL elapsed time, adding parallelism into the mix and then revisiting wall time. What initially seems simple can some take very interesting twists! If you are into tuning Oracle Database systems, you care about time. And if you care about time, then you need to understand the most important time parameters: what they are, their differences, how they relate to each other and how to use them in your performance tuning work. This is video is clip from the OraPub Online Institute seminar, Tuning Oracle Using an AWR Report.
Views: 695 OraPub, Inc.
[Oracle SQL Performance Tuning: 4/4] Basic Hints and their Usage
 
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This presentation explains how to use basic hints of Oracle. The series of SQL tuning videos presents performance tuning tips for developers. For presentation used in this video, please visit: https://drive.google.com/drive/folders/0B6EDqGZwjejmWng5VWM3ZEtaNzA?usp=sharing
Views: 11179 anilkumar ghorakavi
SQL: Optimizer Hints Part-1
 
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In this tutorial, you'll learn...what are optimizer hints and how to use it.. SQL (pronounced "ess-que-el") stands for Structured Query Language. SQL is used to communicate with a database. According to ANSI (American National Standards Institute), it is the standard language for relational database management systems.
Views: 20758 radhikaravikumar
SQL Advanced Videos #5: Hash Join
 
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The last of the three physical join operator and by far the most interesting one. However we pay a price in terms of memory for that interesting join :) #sql #database #hashjoin #hash #join
Views: 3530 SQL TV
How Oracle SQL Query Process
 
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For complete professional training visit at: http://www.bisptrainings.com/course/Oracle-Fundamentals-and-PL-SQL-for-beginners Follow us on Facebook: https://www.facebook.com/bisptrainings/ Follow us on Twitter: https://twitter.com/bisptrainings Email: [email protected] Call us: +91 975-275-3753 or +1 386-279-6856
Views: 23212 Amit Sharma
Oracle Hints explained
 
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Oracle Hints
Views: 582 FAKE News
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.
Sql Server Degree of Parallelism and Parallel Query Plans
 
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Hey DBA guys! Ever wondered what goes behind when SQL Server chooses a parallel query plan or otherwise? Here's a slideshow explaining that! Happy reading! Got some feedback? Mail me at [email protected] ! Enjoy!
Views: 757 SQL Server DBA
Hash Partitioning in Oracle
 
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The Video explains Hash partitioning in oracle and how it focuses on equal data distribution. It explains how hash partitioning uses partition joins to improve performance in VLDB by MPP.
Views: 7166 Tech Coach
Tracing Parallel Execution
 
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This video shows how to trace parallel executions. Copyright © 2012 Oracle and/or its affiliates. Oracle® is a registered trademark of Oracle and/or its affiliates. All rights reserved. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the "Materials"). The Materials are provided "as is" without any warranty of any kind, either express or implied, including without limitation warranties of merchantability, fitness for a particular purpose, and non-infringement.
What is Parallel Calculation?
 
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interRel presents Look Smarter Than You Are with Oracle Essbase: What is Parallel Calculation? Ever wonder what a parallel calculation is? Edward Roske, Oracle ACE Director and CEO of interRel gives you the scoop on what it is and how to leverage it to improve calculation performance! To see more of our videos, go to http://epm.bi/videos
Views: 1886 interRel Consulting
Explaining the Explain Plan: Interpreting Execution Plans for SQL Statements
 
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Presenter: Maria Colgan, Oracle Corporation The execution plan for a SQL statement can often seem complicated and hard to understand. Determining if the execution plan you are looking at is the best plan you could get or attempting to improve a poorly performing execution plan can be a daunting task, even for the most experienced DBA or developer. This session examines the different aspects of an execution plan, from selectivity to parallel execution, and explains what information you should be gleaming from the plan and how it affects the execution. It offers insight into what caused the Optimizer to make the decision it did as well as a set of corrective measures that can be used to improve each aspect of the plan.
Views: 5744 ODTUG
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.
Parallel Execution In an Oracle RAC environment
 
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In an Oracle RAC environment, a SQL statement executed in parallel can run across all of the nodes in the cluster. For more information please visit https://www.koenig-solutions.com/oracle-database-12c-rac-administration-training.aspx
Views: 53 Koenig Solutions
Oracle PL SQL interview question Query was running fine yesterday but its very slow today
 
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Click here to subscribe to my youtube channel http://www.youtube.com/channel/UCBt6VrxAIb5jLh9HLDcdwtQ?sub_confirmation=1 Oracle Interview questions and Answers at https://www.youtube.com/playlist?list=PLb1qVSx1k1Vr0v4wVyvT3GEuA0J0M4xBm Oracle 18C New features at https://www.youtube.com/playlist?list=PLb1qVSx1k1Vqe06V1tIBcvnslMPWX69bW Oracle 12C New features at https://www.youtube.com/playlist?list=PLb1qVSx1k1VqM1u2IHWzZIgziqejl6wx- Oracle PLSQL records and collections at https://www.youtube.com/playlist?list=PLb1qVSx1k1VpAFTXopXvAh_D3PLcTntdm
Views: 623 Siva Academy
Oracle SQL QUery Fundamentals
 
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http://www.bisptrainings.com BISP is a US Based Training and Consulting Company. We are Subject Matter Experts for DHW and BI technologies.We have rich experience in implementing some of the biggest Data Warehouse Projects in Banking, Finance, Sales and Market Research. The team is lead by Amit Sharma. A well Known name in Hyperion/OBIEE training and consulting with more then 10+ experience in DWH and BI. We assist organizations and individuals to learn and build their career in Data Warehousing technology stack. We have in-house technology experts therefore we prepare the technical documents, case studies, white papers, video sessions for OBIEE, Hyperion, Cognos, ODI, Informatica Oracle Middleware and MS BI. We provide very high quality training and consulting in these subject area.
Views: 4173 Amit Sharma
SQL: Optimizer Hints Part-2
 
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In this tutorial, you'll learn...what are optimizer hints and how to use it.. SQL (pronounced "ess-que-el") stands for Structured Query Language. SQL is used to communicate with a database. According to ANSI (American National Standards Institute), it is the standard language for relational database management systems.
Views: 11975 radhikaravikumar
Thinking in Parallel
 
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The Java 8 Streams library makes it easy to run code in parallel. A common error is code that works when run sequentially but that misbehaves when run in parallel. This is often caused by programmers who are stuck in a mode of imperative, left-to-right thinking. This leads to an iterative style in which data is mutated and where the next result depends on the result of the previous computation, creating barriers to parallel computation. This presentation covers an alternative programming technique called array programming, where operations are applied on data aggregates instead of individual elements. It also includes examples and demonstrations that illustrate these techniques and how they lead to easier-to-understand, parallel-ready code.
Views: 4229 Oracle Developers
Oracle SQL SELECT Query Execution Process
 
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Query Execution Process
Views: 1744 PNR Tech
12c Adaptive Optimization - Kerry Osborne
 
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One of the most interesting new features of the Oracle Database Optimizer is the ability to recognize its own mistakes and use execution statistics to automatically improve execution plans. Oracle calls this "Adaptive Optimization" and this talk will focus on how it works. More webinars at: http://www.red-gate.com/oracle-webinars
Views: 7156 Redgate Videos
Parallel Executions of Tasks in SSIS - SQL Server Integration Services (SSIS) Tutorial
 
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In this SQL Server Integration Services(SSIS) Interview question video, you will learn the answer of question "What is parallel execution in SSIS, and how many Data Flow Tasks can apackage run in parallel?" I totally forgo to mention if Hypder-threading is enable then it will be number of logical processors +2 , those many executable can run in parallel. Complete list of SSIS Interview Questions by Tech Brothers http://www.techbrothersit.com/2013/07/ssis-interview-questions.html for ssis tutorial , check our complete list http://www.techbrothersit.com/2014/12/ssis-videos.html
Views: 13381 TechBrothersIT

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