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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: 5030 TechLake
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 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: 50995 Anindya Das
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: 2067 TechLake
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: 2678 Randolf Geist
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 Hints explained
 
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Oracle Hints
Views: 348 Telugu Blast News
Hints
 
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Hints watch more videos at https://www.tutorialspoint.com/videotutorials/index.htm Lecture By: Mr. Parth Panjab, Tutorials Point India Private Limited
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: 19219 radhikaravikumar
eXtrem Parallel Processing for Oracle
 
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eXtrem Parallel Processing for Oracle
Views: 180 Petr Jezek
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: 47442 Ramkumar Swaminathan
Using the qb_name Hint in Oracle Database
 
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Oracle ACE Ric Van Dyke shares a tip on using the qb_name hint in Oracle Database, and on how naming query blocks can make debugging a lot easier.
Oracle Database 12c: Adaptive Execution Plans with Tom Kyte
 
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Tom Kyte introduces adaptive execution plans followed by a demo. "Adaptive Plans" in SQL Tuning Guide" http://www.oracle.com/pls/topic/lookup?ctx=db121&id=TGSQL221 "Controlling Adaptive Optimization" http://www.oracle.com/pls/topic/lookup?ctx=db121&id=TGSQL257 "Generating and Displaying SQL Execution Plans" http://www.oracle.com/pls/topic/lookup?ctx=db121&id=TGSQL271 "Keeping Your Database Secure" http://www.oracle.com/pls/topic/lookup?ctx=db121&id=DBSEG009
Views: 13338 OracleDBVision
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.
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: 1163 OraPub, Inc.
Efficient Function Calls From SQL (Part 2) : The DETERMINISTIC Hint
 
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The second part of a mini-series of videos showing how you can improve the performance of function calls from SQL. In this episode, we take a look at the DETERMINISTIC hint. For more information see: https://oracle-base.com/articles/misc/efficient-function-calls-from-sql#deterministic-hint Website: https://oracle-base.com Blog: https://oracle-base.com/blog Twitter: https://twitter.com/oraclebase Cameo by Dana Singleterry : Blog: https://blogs.oracle.com/dana/ Twitter: https://twitter.com/dsingleterry Cameo appearances are for fun, not an endorsement of the content of this video.
Views: 2222 ORACLE-BASE.com
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: 3405 Redgate Videos
How Oracle SQL Query work
 
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This video will give to understanding of SQL Parsing, Syntatic check , semantic check, spool file check, Sql Optimization, row source generation and sql execution.
Views: 17916 amit wadbude
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: 11095 radhikaravikumar
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: 36645 itversity
Oracle Database Hints Tuning Tips Presentation Video Oracle DB
 
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For a quick reference on oracle visit http://PocketORACLE.blogspot.com
Views: 5022 TheEzguide
Oracle Performance - Result Cache Exercises
 
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Oracle Performance - Result Cache Exercises
Views: 666 The Silent DBA
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.
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: 54 Petr Jezek
ORACLE TKPROF fundamentals Part 1 -  Introduction to SQL Tracing & TKPROF
 
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Link for ORACLE TKPROF fundamentals Part-2 (Interpret TKPROF Report) https://www.youtube.com/watch?v=OiVu6vFq28w ORACLE TKPROF fundamentals For SQL TUNING Part-1 covers 1. Introduction to SQL Tracing. 2. Set up SQL_Trace &TKPROF. 3. Generate TKPROF Report. ---------------------------------------------------------------------------------------------------------------------- ORACLE TKPROF fundamentals For TUNING SQL Part-2 covers  1. Interpreting TKPROF Report.
Views: 30813 Anindya Das
Oracle Hints,
 
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Oracle Hints, Tips and advice - Hints and tips on various programming languages and development tools.
Views: 3833 018sube
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: 33 Koenig Solutions
Hints and Tips - SQL*Plus tricks
 
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It's been around forever... but that does not make it obsolete. Here's how you can get the most out of SQL*Plus ========================================­­============== 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: 3052 Connor McDonald
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.
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: 17183 radhikaravikumar
Oracle Explain Plans-Explain Plan Hints and Reading Plans
 
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Oracle Explain Plans-Explain Plan Hints and Reading Plans http://www.informit.com/promotions/webcast-understanding-oracle-explain-plans-140966 Watch an excerpt from trainer Dan Hotka on Explain Plan Hints and Reading Plans. The full video shows you how to work with Explain Plans, then goes into considerable detail about exactly how Oracle arrives at an Explain Plan. Dan has a thorough understanding of how the Cost-Based Optimizer works, and shares that knowledge in this presentation. You will gain valuable insights as to how Oracle processes SQL, and many tips on how to improve SQL performance. This presentation is a must-see for anyone doing SQL tuning. http://www.informit.com/promotions/webcast-understanding-oracle-explain-plans-140966
Views: 371 InformIT
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: 2162 apps2fusion
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.
77/125 Oracle PLSQL: Design consideration  / NOCOPY Hint 1
 
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Calling by reference and calling by value Using NOCOPY hint تعلم اوراكل حتى الاحتراف
Views: 446 khaled alkhudari
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: 3413 ODTUG
SQL * Loader Tutorial 3: SQL Loader  Conventional and Direct Paths
 
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SQL * Loader Tutorial 3: SQL Loader Conventional and Direct Paths Difference Between Conventional and Direct path loading in SQL * Loader SQL Tutorial SQL Tutorial for beginners PLSQL Tutorial PLSQL Tutorial for beginners PL/SQL Tutorial PL SQL Tutorial PL SQL Tutorial for beginners PL/SQL Tutorial for beginners Oracle SQL Tutorial
Views: 1246 TechLake
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: 2532 Tech Coach
Oracle Advanced SQL Optimization Techniques
 
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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: 9644 Amit Sharma
Oracle Tutorial - Insert into a table in different ways
 
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Oracle Tutorial: Insert into a Table in different ways
Views: 30 Tech Acad
How Oracle Instance Recovery Works
 
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https://dbagenesis.com/ DBA Genesis provides all you need to build and manage effective Oracle technology learning. We designed DBA Genesis as a simple to use yet powerful online Oracle learning system for students. Each of our courses is taught by an expert instructor, and every course is available on demand. Oracle instance recovery is an advanced concept, but its interesting to know and understand it. Oracle performs instance recovery when the database is restarted due to instance failure or shutdown the database with ABORT option(shutdown abort) or startup the database with FORCE option(startup force). Instance recovery is taken care by SMON oracle background process automatically. Instance recovery consists of two steps. One is Roll forward, next is Roll backward.
Views: 6197 DBA Genesis
SQL Server Performance Tuning  Controlling Parallelism
 
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Parallelism seems like it should be one of those things that the query engine takes care of for us, but it does require some care and tending from time to time. The default server configurations are no longer adequate for controlling parallelism, and DBAs need to know how to tweak the settings to make it run optimally. When parallelism goes awry, it can cause severe performance problems. Sometimes only for a specific query, sometimes it can hurt performance server-wide. To add a little complexity to the mix, parallelism can also be controlled by query hints and Resource Governor. Understanding how these three options for setting the Max Degree of Parallelism interact and who wins when they conflict is critical in being able to understand how to control it. Robert is a SQL Server Certified Master, MVP, and experienced DBA, evangelist, speaker, writer, and trainer. He has worked with SQL Server for 15+ years. He recently worked for Outerwall, Idera Software, and Microsoft. He served as PM for the SQL Server Certified Master Program at Microsoft Learning, and as a production DBA at Microsoft. He currently works as a principal database architect at DB Best Technologies. Robert is co-founder and co-leader of the PASS Security Virtual Chapter.
Views: 2916 DBAFundamentals
Oracle to SQL server 5 Steps Migration
 
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Migration is a process. We have in-depth methodologies, resources, offers and tools to help you move from Oracle to SQL Server quickly and painlessly. Learn 5 steps to migrate from Oracle to Microsoft SQL Join this session to learn about the 5 steps in migration: •Assess your current data systems •Develop a Migration Plan •Deploy to the new system •Validate everything is working properly •Cutover from your old system azure database dba
Views: 2144 Technocraft
Oracle "Waiting"
 
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Oracle - Waiting - sur l'album "Tree" (1993)
Views: 285 fidale rebbec
SQL Hints, Tips, Tricks, and Tuning
 
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What is the difference between inner, outer, cross and natural join? What is a correlated subselect? What is the advantage and what the disadvantage of an index. Is NOT and OR evil? When do I need normalisation and when denormalisation? All this questions and lots of other performance tips and tricks on SQL level will be given in the talk.
Views: 14635 Andrea Ross
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
Oracle Apps Training - Configure AME Roles in R12
 
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In this video you will learn how to create roles for AME in Oracle R12. For more useful documents and videos on AME setups visit us at http://www.erpwebtutor.com
Views: 26413 ERPWebTutor

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