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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: 4872 TechLake
Indexes in Oracle :Index Scan Methods :Part 2
 
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The Video Explains when should you create indexes. The difference between Simple and composite Index, Relevance of order in composite indexes and Index Scan Methods in detail. 1.Index Unique scan 2.Index Range Scan 3. Index Skip Scan 4. Fast full Index Scan 5. Full Index Scan If you have any questions just drop in a comment
Views: 5161 Tech Coach
06 06 Index Full Scan Operations
 
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ORACLE
Views: 746 oracle ocm
A Story of Indexes and Full Table Scans: Finding All the Red Sweets Part 1
 
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"Why isn't Oracle using my index?!" is a common question people have when tuning SQL queries. In this episode Chris compares two methods for finding all the red candies from party bags he's prepared. He shows how these are like a full table scan and an index range scan. He goes on to compare the performance of these two approaches. He shows when a full table scan becomes more efficient than an index range scan and vice versa. ============================ 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: 7449 The Magic of SQL
Oracle Tuning Tutorial - Long Full Table Scans Part 2 of 5
 
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See all 5 tutorials, free, at SkillBuilders.com/OracleTuningFullTableScans Number Eight in the "Performance tuning Guide, Top Ten Mistakes Found in Oracle Systems" Long Full Table Scans is described as follows: "Long full table scans for high-volume or interactive online operations could indicate poor transaction design, missing indexes, or poor SQL optimization. Long table scans, by nature, are I/O intensive and unscalable." Actually, there are many cases where the full table scan is your friend. But whether they are good or bad for the performance of the SQL that invokes them, there may be implications (for better or for worse) for performance of other statements. This is particularly true in 11.2.x, where direct reads are possible for serial scans, and indirect reads are possible for parallel scans. Do you trust the optimizer? The change in behaviour in recent releases may need some investigation, and revisiting older code. As always with a SkillBuilders Tutorial, we shall illustrate the issues and solutions with live demonstrations using release 11g (11.2.0.3). Audience: Operating System Administrators, Storage Administrators, Oracle Administrators and Management responsible for Storage and / or Oracle Databases.
Views: 4510 SkillBuilders
SQL: Explain Plan for knowing the Query performance
 
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In this tutorial, you'll learn how to compare queries to know the better performance query..
Views: 92741 radhikaravikumar
Making Smart Scan for Exadata Work (Demonstration)
 
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Making Smart Scan Work - Demo I'll go through a simple example of the kind of thing we need to think about when trying to achieve Smart Scan. Let me just enable tracing, run a simple query, select and * from *. Now, there's my query. The result set comes back, and how is it executed? An index full scan with the PK* index. The optimizer is intelligent enough to know that my query can be satisfied purely by reading the index and therefore it didn't have to go to the table at all. It looks very good. Well, it wasn't. Index full scans are an operation that cannot be offloaded. So, to execute that statement, every block of that index was delivered into the buffer cache of my own database instance, and the compute node then has to do the work of extracting those values. What can we do about it? One solution would be to hint the code. I select and demand an index fast full scan, and now we see the magic word "storage." An index fast full scan is offloadable, because an index fast full scan can do direct reads. An alternative approach? Well, you might not want to hint many, many thousands of lines of code. An alternative approach would be to do it through DDL. For example, take that index, make it invisible. Now run my statements without any hint at all, table access storage full, and that was offloaded. Having made the index invisible, Oracle has no option but a full-table scan, and a full-table scan is offloadable. Now, this means I have three options of this very simple example. I can let the optimizer get on with what it wants to do, and then I use an index that I'm doing block serving into the buffer cache. I can hint the code, index fast full scan. That's probably the best option for performance, but it's also the most work. In this intervening case, I make the index invisible so that it will still be used of course for enforcing the primary key constraints, but it will not be visible to the optimizer and therefore influence the optimizer towards using plans that can be offloaded the Smart Scan. Making the choice between this and influencing the optimizer in the correct direction is an extremely difficult job, and it is not always easy to determine what is going to be the best solution.
Views: 3057 SkillBuilders
SCPT 46:Oracle Storage Termininology:  High Water Mark and Free Lists
 
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Oracle DBA Tutorials For Full Course Experience Please Go To http://mentorsnet.org/course_preview?course_id=6 Full Course Experience Includes 1. Access to course videos and exercises 2. View & manage your progress/pace 3. In-class projects and code reviews 4. Personal guidance from your Mentors
Views: 17773 Oresoft LWC
Oracle Tuning Tutorial - Long Full Table Scans Part 1 of  5
 
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Learn SQL Tuning! Tune full table scans! Part 1 of 5 videos in this series. See all 5 tutorials, free, at http://www.skillbuilders.com/tuning-long-full-table-scans Number Eight in the "Performance tuning Guide, Top Ten Mistakes Found in Oracle Systems" Long Full Table Scans is described as follows: "Long full table scans for high-volume or interactive online operations could indicate poor transaction design, missing indexes, or poor SQL optimization. Long table scans, by nature, are I/O intensive and unscalable." Actually, there are many cases where the full table scan is your friend. But whether they are good or bad for the performance of the SQL that invokes them, there may be implications (for better or for worse) for performance of other statements. This is particularly true in 11.2.x, where direct reads are possible for serial scans, and indirect reads are possible for parallel scans. Do you trust the optimizer? The change in behaviour in recent releases may need some investigation, and revisiting older code. As always with a SkillBuilders Tutorial, we shall illustrate the issues and solutions with live demonstrations using release 11g (11.2.0.3). Audience: Operating System Administrators, Storage Administrators, Oracle Administrators and Management responsible for Storage and / or Oracle Databases.
Views: 2904 SkillBuilders
01 Overview of table Partition in oracle
 
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Partitioning enhances the performance, manageability, and availability of a wide variety of applications and helps reduce the total cost of ownership for storing large amounts of data. Partitioning allows tables, indexes, and index-organized tables to be subdivided into smaller pieces, enabling these database objects to be managed and accessed at a finer level of granularity. Oracle provides a rich variety of partitioning strategies and extensions to address every business requirement. Moreover, since it is entirely transparent, partitioning can be applied to almost any application without the need for potentially expensive and time consuming application changes. Partitioning allows a table, index, or index-organized table to be subdivided into smaller pieces, where each piece of such a database object is called a partition. Each partition has its own name, and may optionally have its own storage characteristics. From the perspective of a database administrator, a partitioned object has multiple pieces that can be managed either collectively or individually. This gives the administrator considerable flexibility in managing partitioned objects. However, from the perspective of the application, a partitioned table is identical to a non-partitioned table; no modifications are necessary when accessing a partitioned table using SQL queries and DML statements. Partitioning Key ======================== Each row in a partitioned table is unambiguously assigned to a single partition. The partitioning key is comprised of one or more columns that determine the partition where each row will be stored. Oracle automatically directs insert, update, and delete operations to the appropriate partition through the use of the partitioning key. When to Partition a Table ========================== Here are some suggestions for when to partition a table: Tables greater than 2 GB should always be considered as candidates for partitioning. Tables containing historical data, in which new data is added into the newest partition. A typical example is a historical table where only the current month's data is updatable and the other 11 months are read only. When the contents of a table need to be distributed across different types of storage devices. When to Partition an Index ============================= Here are some suggestions for when to consider partitioning an index: Avoid rebuilding the entire index when data is removed. Perform maintenance on parts of the data without invalidating the entire index. Reduce the impact of index skew caused by an index on a column with a monotonically increasing value. Partitioned Index-Organized Tables =================================== Partitioned index-organized tables are very useful for providing improved performance, manageability, and availability for index-organized tables. For partitioning an index-organized table: ============================================ Partition columns must be a subset of the primary key columns Secondary indexes can be partitioned (both locally and globally) OVERFLOW data segments are always equi-partitioned with the table partitions See Also: Oracle Database Concepts for more information about index-organized tables System Partitioning System partitioning enables application-controlled partitioning without having the database controlling the data placement. The database simply provides the ability to break down a table into partitions without knowing what the individual partitions are going to be used for. All aspects of partitioning have to be controlled by the application. For example, an insertion into a system partitioned table without the explicit specification of a partition will fail. System partitioning provides the well-known benefits of partitioning (scalability, availability, and manageability), but the partitioning and actual data placement are controlled by the application. See Also: Oracle Database Data Cartridge Developer's Guide for more information about system partitioning Partitioning for Information Lifecycle Management Information Lifecycle Management (ILM) is concerned with managing data during its lifetime. Partitioning plays a key role in ILM because it enables groups of data (that is, partitions) to be distributed across different types of storage devices and managed individually.
Views: 6683 OnLinE ReSoUrCe
Indexing in Oracle :B-Tree,Bitmap Indexing
 
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This Video is the 1st tutorial in the video series Indexing in Oracle , The video series explains in detail, What are indexes?It's types, what index should be used in which scenario and other important thing in basic terminology. Note :You may want to watch the video with a higher playback speed(1.25 if it suits you more)
Views: 10205 Tech Coach
Oracle SQL Tuning - How to Read Execution Plans (Explain Plan)
 
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In this free tutorial you will learn how to generate and read (interpret) an execution plan in Oracle Databases. See more FREE Oracle Tuning tutorials at http://skillbuilders.com/free-oracle-tutorials. Understanding what the Oracle Database does with your SQL is essential to tuning - and the execution plan is the key. Oracle Certified Master DBA John Watson will provide a brief introduction (4 minutes) - which includes John's tuning methodology, then demonstrate EXPLAIN PLAN, SQL*Plus AUTOTRACE and DBMS_XPLAN.DISPLAY_CURSOR. In the tutorial, John will teach you: - How to read an execution plan - Find the 1st step in the plan - Decipher the order of the steps in the plan - That EXPLAIN PLAN can be very misleading Prerequisites: To get the most from this tutorial, you should: 1 Know how to code SQL 2 Be familiar with SQL*Plus 3 Know - in very general terms - what an execution plan is. 4 Have a basic understanding of the Library Cache (this is where Oracle Database stores parsed SQL statements) 5 Have a basic understanding of the Cost Based Optimizer (this is the part of the database that parses your SQL, creates an execution plan. Hopefully the correct - most efficient - plan).
Views: 62397 SkillBuilders
B*Tree Index Fundamentals(Indexes in Oracle-1)
 
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Part -1 : Introduction to Indexes, B*Tree Indexes, Index scan methods. Part -2 : B*Tree Index Types(different types of B*Tree indexes) Part -3: Using B*Tree Indexes(When use B*Tree indexes, factors related to B*Tree Access) Part -4 : Index Organized Table Part -5 : Bitmap Indexes Part -6: Partitioned Indexes Part- 7: Other type of Indexes based on characteristics & use. Part -8: Managing Indexes
Views: 48653 Anindya Das
Why Isn't My Query Using an Index?
 
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“Why isn’t my query using an index?” is a common question people have when tuning SQL. This session explores the factors that influence the optimizer’s decision to answer this question. It does so by comparing fetching rows from a database table to finding all the red M&Ms a packet, and contrasts using an index range scan and a full table scan. It also introduces the concepts of blocks and the clustering factor. The session offers a discussion of how these affect the optimizer's calculations, and includes a demo of how these concepts work in practice using real SQL queries. This session is intended for developers who want to learn the basics of how the optimizer chooses between an index range or full table scan. Speaker: Chris Saxon
Views: 262 Oracle Developers
Oracle SQL Tuning Expert Series - Understanding Indexes
 
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Ross Leishman of DWS Ltd presents the principles of Understanding Indexes for SQL Tuning. The presentation includes an entertaining demonstration of Indexes featuring DWS Alumnus Jordan Thomas as a "Buffer Cache". DWS Ltd is a leading publicly listed Australian IT Services company, providing services to blue chip organisations since 1991. With a business philosophy based upon integrity, reliability and professional service delivery, DWS provides end to end IT solutions. www.dws.com.au
Views: 43372 DWS Ltd
Partitioning in Oracle - Performance Basics
 
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This is the 2nd video from " Partitioning in Oracle " series, It explains how oracle stores and manages data. What is single Block IO and Multi Block IO ? Why full table scan is better than index access in few cases. The video is very elaborate, I have tried my level best to keep it as simple as possible
Views: 7433 Tech Coach
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: 1563 SkillBuilders
Oracle Indexes - Live Demonstration
 
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When is a Full Table Scan faster than an Index Scan? Watch Ross and Jordan act out an Oracle database reading and caching data via both methods, explaining the costs and benefits in simple and easy to understand terms. The demonstration is part of a talk by Ross Leishman of DWS Ltd on the principles of Understanding Indexes for SQL Tuning. The full lecture is at this link: https://www.youtube.com/watch?v=Z4hKomnGHFA DWS Ltd is a leading publicly listed Australian IT Services company, providing services to blue chip organisations since 1991. With a business philosophy based upon integrity, reliability and professional service delivery, DWS provides end to end IT solutions. www.dws.com.au
Views: 2652 DWS Ltd
Oracle 11g CBO New Features
 
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Learn what's different about cost-based optimization in 11g Release 2. In this training Dave Anderson will guide you through some critical performance and SQL tuning enhancements and other surprises in the Oracle 11g cost-based optimizer. Through live demonstrations and lecture, you will learn about features such as adaptive cursor sharing, feedback-based optimization, new join techniques, DBMS_STATS enhancements, direct (PGA) reads for "large" full table scans, new hints and more. Presented at NYOUG by SkillBuilders' Founder and Oracle DBA, Dave Anderson.
Views: 6876 SkillBuilders
Batman: Arkham Knight Walkthrough - Part 5 - Tracking Oracle
 
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Batman: Arkham Knight New Game Plus Mode - Mission Walkthrough \ Guide in Full HD (1080p and 60fps) Batman: Arkham Knight New Game Plus Playlist: https://www.youtube.com/playlist?list=PLJms5sWamFOWmrGgkZVyz7_SkBSkF3hb9 =================================== PART 5: Tracking Oracle Primary Objectives: - Rescue Oracle from the Arkham Knight Objectives: - Meet Gordon outside GCPD Prisoner Detention - Escort Gordon to Oracle's Clock Tower - Take out the Arkham Knight's militia forces occupying the Clock Tower - Investigate the Clock Tower for clues to help locate Oracle - Track the Arkham Knight's vehicle using the Batmobile Forensics Scanner to locate Oracle - Investigate the militia device - Defend the virus upload - Defuse the bomb with a controlled explosion - Proceed on foot to the militia access point at Grand Avenue Station and regain control of Mercy Bridge =================================== Game available on: Sony PlayStation 4, Microsoft Xbox One & PC Video recorded on: PC (with all settings maxed out) =================================== Follow BatmanArkhamVideos on: ● YouTube - http://www.youtube.com/BatmanArkhamVideos ● Twitter- http://www.twitter.com/ArkhamVideos ● Facebook - http://www.facebook.com/BatmanArkhamNews For more info and videos, visit http://www.Batman-Arkham.com and http://www.Games-Series.com
Views: 361800 Batman Arkham Videos
Oracle Indexes - Beginner
 
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Oracle Indexes - Beginner
Views: 63864 Chris Ostrowski
Oracle 11g New Features : SQL Plan Management  (Baselining)
 
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Oracle 11g SQL Plan Management, a.k.a. Baselining, will solve the major issues of change control. We can give you an absolute guarantee - if you configure this as part of your upgrade - that SQL statement execution (performance) will never regress. You may also like our new and free Oracle 12c video tutorials, https://www.skillbuilders.com/free-oracle-database-tutorials . This tutorial is particularly relevant: it provides a review of baselining then reveals 12c performance features https://www.skillbuilders.com/free-oracle-database-tutorials/oracle-12c-sql-performance-features-agenda-session/
Views: 10152 SkillBuilders
Upgrade oracle database from 11g to 12c
 
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Steps to upgrade an Oracle database from 11gR2 to 12c
Views: 35364 Tamal Chatterjee
Oracle Hints and Tips - How to get a database installed for home exploring
 
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blog: https://connor-mcdonald.com Brand new to Oracle ... and want to get a basic installation up and running on your Windows laptop, with SQL Developer to access the database ?.... .... Here you go :-)
Views: 1014 Connor McDonald
Reference partitioning in Oracle 11g
 
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The video explains Reference partitioning and its advantages in Oracle with real project example. It builds on the limitations of reference partitioning in oracle 11g (Interval partitioning) and scenarios where you should implement reference partitioning
Views: 1247 Tech Coach
Batman: Arkham Knight Walkthrough - Part 11 - Founders' Island
 
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Batman: Arkham Knight New Game Plus Mode - Mission Walkthrough \ Guide in Full HD (1080p and 60fps) Batman: Arkham Knight New Game Plus Playlist: https://www.youtube.com/playlist?list=PLJms5sWamFOWmrGgkZVyz7_SkBSkF3hb9 =================================== PART 11: Founders' Island Primary Objectives: - Destroy the Arkham Knight's defense grid on Founders' Island to allow the Batwing to scan for the Cloudburst - Return to Oracle’s Clock Tower to review the Batwing scans for the Cloudburst device Objectives: - Head to Panessa Studios to analyze the Arkham Knight's forces - Glide onto the relay drone and examine it to find a way to defeat the drone forces - Destroy the Arkham Knight’s radar network - Lower the barriers protecting the missile launcher - Take out the Arkham Knight's Cobra drones protecting Founders' Island - Take out the long range missile launcher =================================== Game available on: Sony PlayStation 4, Microsoft Xbox One & PC Video recorded on: PC (with all settings maxed out) =================================== Follow BatmanArkhamVideos on: ● YouTube - http://www.youtube.com/BatmanArkhamVideos ● Twitter- http://www.twitter.com/ArkhamVideos ● Facebook - http://www.facebook.com/BatmanArkhamNews For more info and videos, visit http://www.Batman-Arkham.com and http://www.Games-Series.com
Views: 397438 Batman Arkham Videos
Batman Arkham Knight Kidnap Vehicle Crash Site - Rescue Oracle
 
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Batman Arkham Knight Kidnap Vehicle Crash Site - Rescue Oracle Find Barbara Gordon Knight Kidnap Vehicle Crash Site Scan the crashed vehicle 0:16 Locate the vehicle's driver : 1:09 Examine the passenger seat 1:53 Locate the passenger door 2:22 identify where oracle landed 3:12 Examine the ballistic evidence 4:17 Find the clue left by Oracle while crawling away 5:56 Batman: Arkham Knight is an upcoming action-adventure video game being developed by Rocksteady Studios and published by Warner Bros. Interactive Entertainment for the PlayStation 4 and Xbox One video game consoles, and Microsoft Windows. Based on the DC Comics superhero Batman subscribe :http://www.youtube.com/user/qpgames?sub_confirmation=1 Batman: Arkham Knight Playlist https://www.youtube.com/playlist?list=PLWgRB5ZH1mmlSg7TnUUkR4u4f7gQAMibt Plus Google :https://plus.google.com/+qpgames Fanpage:https://www.facebook.com/fpgoodgames Twitter :https://twitter.com/QPGAMES_YT All Most Wanted, All Ar Challenges, All Riddler,All Trophies Achievement,
Views: 260658 QNGAMES
Oracle Training - Accounts Payable in Oracle E-Business Suite R12 (1080p - HD)
 
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http://www.i-oracle.com/ - Oracle Training and Tutorials - Learn how to enter and pay an invoice in Oracle Applications E-Business Suite R12. Use the R12 interface to also match the invoice to a Purchase Order, validate and approve the invoice. View Subledger Accounting (SLA) transactions, view invoice details. And many more.
Views: 369259 Yemi Onigbode
How To Setup & Use a VR Headset — Beginner's Guide
 
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▶ Subscribe: http://goo.gl/xgr4FK ▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂ Welcome, Guys! In this Video, I will be teaching you how to set up a VR headset and how to properly use it. I hope you will find this guide helpful. Please feel free to comment down below and I will answer your queries. Thanks for Watching! Please, Subscribe! ▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂▂ ➥Follow Us On Facebook https://www.facebook.com/Dexteroid ➥Follow Us On Twitter https://twitter.com/DEXTEROiDcom ➥Follow Us On Google+ https://plus.google.com/+Dexteroid
Views: 448394 DEXTEROiD
Step by Step guide to build data guard in Oracle 11g |Physical standby database Data guard |
 
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Step by Step guide to build data guard in Oracle 11g
Views: 110383 Wysheid Wysheid
Oracle X$TRACE, Wait Event Internals and Background Process Communication
 
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In this session we will look into some internals of Oracle background process communication and also some special types of wait events that most people aren’t aware of. We will use some exotic tracing for internals research and fun and some of this stuff is actually useful in real life too! I’m not going to reveal everything upfront, as this is a secret internals hacking session after all ;-) We will use various techniques to research what the “reliable message” wait event is about and how reliable background process communication is orchestrated in Oracle. This is a hacking session, not formal structured training, so I’ll just do free form demos and talk (probably no slides, just hacking stuff on the command line). Also, check out my full-week Advanced Oracle Troubleshooting online training at https://blog.tanelpoder.com/seminar
Views: 2970 Tanel Poder
Redis Crash Course Tutorial
 
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In this crash course we will discuss and demonstrate the fundamentals of Redis including... What Redis Is Installation Redis-cli Data Types - Strings, Lists, Sets, Sorted Sets, Hashes Data Persistence FULL REDIS COURSE: Please Use This Link https://www.eduonix.com/affiliates/id/16-10420 SUPPORT: We spend massive amounts of time creating these free videos, please donate to show your support: http://www.paypal.me/traversymedia http://www.patreon.com/traversymedia FOLLOW TRAVERSY MEDIA: http://www.facebook.com/traversymedia http://www.twitter.com/traversymedia http://www.linkedin.com/bradtraversy
Views: 107162 Traversy Media
Improving performance of full table scans in Oracle - Hebrew - שיפור ביצועים של סריקת טבלה באורקל
 
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בסשן הזה אני מציג כיצד ניתן לשפר ביצועים של סריקת טבלה (Full Table Scan) באורקל ומדגים כיצד זה בפועל מתבטא ומתבצע בסביבת ייצור אמיתית. נתוודע למושג ה-High Water Mark, החשיבות שלו בעת Full Table Scan והעובדה ש-DELETE לא משפיע עליו. נראה כיצד נוכל לזהות אם יש בלוקים ריקים ומיותרים שאנו קוראים בעת סריקת הטבלה וכיצד ניתן לפתור את הבעיה.
Views: 315 Eran Koren
How to configure oracle network environment
 
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In this tutorial i'm going to demonstrate you how to configure oracle network environment step by step.
Views: 10607 OCP Technology
Batman Arkham Knight - All Riddler Riddles to Rescue Catwoman - Riddler Revenge
 
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All Riddles to acquire all keys in the Riddlers Revenge Most Wanted mission. Gains lots of trophies: The Road to Hell Death By Design Lethal Pursuits Nine Lives Pieces of the Puzzle Riddler on the Rampage The Burning Question The Cat and the Bat The Primal Riddle The Riddle Factory
Views: 1883991 AFGuidesHD
Query Tuning 101: Access vs. Filter Predicates In Execution Plans
 
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Have you ever wondered what the difference is between the "filter predicates" or "access predicates" steps listed in execution plans - or even what a predicate is? If so, watch this video to find out! 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: 4647 The Magic of SQL
Batman: Arkham Knight Walkthrough - Part 10 - The Punishment
 
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Batman: Arkham Knight New Game Plus Mode - Mission Walkthrough \ Guide in Full HD (1080p and 60fps) Batman: Arkham Knight New Game Plus Playlist: https://www.youtube.com/playlist?list=PLJms5sWamFOWmrGgkZVyz7_SkBSkF3hb9 =================================== PART 10: The Punishment Primary Objectives: - Stop Scarecrow - Rescue Oracle from Scarecrow's safe house - Work with Ivy to set up countermeasures against the Cloudburst device Objectives: - Meet with Ivy at the GCPD Lockup - Scan the Arkham Knight's Cobra drone to identify a weakness - Destroy the Arkham Knight’s Cobra drone - Equip a new Secondary Weapon for the Batmobile at Clock Tower facility - Destroy the Cobra tanks on Miagani Island - Take Ivy to the Botanical Gardens - Head to the Wayne Tower parking garage and collect Ivy plant tracking device - Use the Batmobile Sonar to locate and release Ivy's plant on Miagani Island - Protect Ivy's plant from the Arkham Knight's militia while it matures =================================== Game available on: Sony PlayStation 4, Microsoft Xbox One & PC Video recorded on: PC (with all settings maxed out) =================================== Follow BatmanArkhamVideos on: ● YouTube - http://www.youtube.com/BatmanArkhamVideos ● Twitter- http://www.twitter.com/ArkhamVideos ● Facebook - http://www.facebook.com/BatmanArkhamNews For more info and videos, visit http://www.Batman-Arkham.com and http://www.Games-Series.com
Views: 289615 Batman Arkham Videos
EPIC 120% Cleave Damage PA Counter PL Crazy Pressure in Lane Most Crazy Combo Build WTF Dota 2
 
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EPIC 120% Cleave Damage PA Counter PL Crazy Pressure in Lane Most Crazy Combo Build WTF Dota 2 Mortred, the Phantom Assassin, is a melee agility hero fitting the role of hard carry. Mortred is best-known, and infamous for, her ability to inflict staggering damage with single strikes. Subscribe For More Videos: https://www.youtube.com/channel/UCKCC6yRZor2qsGbO_x7LpuA?sub_confirmation=1 Dota 2 Meta Uploading Only Pro Dota 2 Gameplay Highlights Videos From Top Players (Miracle-, w33, Dendi, MidOne, Mushi, Abed, Attacker, Maybe, Yaphets, Wagamama, Arise, Arteezy And Many More). Miracle- Pro Gameplays: https://www.youtube.com/watch?v=SjoEsjRFSAQ&list=PLFIeRaJDXgRzBglbFCTU2T6sYm76NjH8d SumiYa Pro Gameplays: https://www.youtube.com/watch?v=mHH_blecKHA&list=PLFIeRaJDXgRwp3wiq--HSgbFjYS6cFe4z Yapzor Pro Gameplays: https://www.youtube.com/watch?v=UEWqYgggFGk&list=PLFIeRaJDXgRxtV3tG1WvDEjKnh_RDu3ND Midone Pro Gameplays: https://www.youtube.com/watch?v=BdybJcKwzns&list=PLFIeRaJDXgRzmPOuIEHo-npL6tRCc7pEA Attacker- Pro Gameplays: https://www.youtube.com/watch?v=CEGz5lEyuNs&list=PLFIeRaJDXgRxxepvH-Rxc9ob2kGGq-RKm Arteezy Pro Gameplays: https://www.youtube.com/watch?v=BdybJcKwzns&list=PLFIeRaJDXgRzPCPI6D0O_RdZWtTfDPucZ nb Pro Gameplays: https://www.youtube.com/watch?v=N81_2NDhS4k&list=PLFIeRaJDXgRxVn-zurarqvbk19VNUxNTL Babyknight Pro Gameplays: https://www.youtube.com/watch?v=RX6AXoVpybg&list=PLFIeRaJDXgRx1IZzLzrPmsk5MEnz01-_3 Wagamama Pro Gameplays: https://www.youtube.com/watch?v=ol8wQMcVmmg&list=PLFIeRaJDXgRwJPIR0LKR30eciaLdaN3Hn All Gameplays: https://youtu.be/Z-hhaFuGzK4?list=PUKCC6yRZor2qsGbO_x7LpuA WTF is Dota 2? It's a competitive game of action and strategy (moba), played both professionally and casually by millions of passionate fans worldwide. Players pick from a pool of over a hundred heroes, forming two teams of five players. Radiant heroes then battle their Dire counterparts to control a gorgeous fantasy landscape, waging campaigns of cunning, stealth, and outright warfare. Download Dota 2 on Steam: http://store.steampowered.com/app/570/ #Dota2 #Gameplay #Pro #Miracle #WTF #Dota
Views: 19477 Dota 2 Meta
Batman: Arkham Knight Walkthrough - Part 3 - ACE Chemicals
 
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Batman: Arkham Knight New Game Plus Mode - Mission Walkthrough \ Guide in Full HD (1080p and 60fps) Batman: Arkham Knight New Game Plus Playlist: https://www.youtube.com/playlist?list=PLJms5sWamFOWmrGgkZVyz7_SkBSkF3hb9 =================================== PART 3: ACE Chemicals Primary Objectives: - Stop Scarecrow from detonating the fear toxin bomb Objectives: - Rendezvous with Gordon at the ACE Chemicals plant - Use the access terminal to retrieve the workers’ personal ID frequencies - Scan the ACE Chemicals plant to pinpoint the location of the missing workers - Open the main ACE Chemicals gate to allow access for the Batmobile - Rescue the missing ACE Chemicals workers to get information on Scarecrow - Escort the ACE Chemicals worker to Gordon on the bridge - Stop Scarecrow from blowing up ACE Chemicals =================================== Game available on: Sony PlayStation 4, Microsoft Xbox One & PC Video recorded on: PC (with all settings maxed out) =================================== Follow BatmanArkhamVideos on: ● YouTube - http://www.youtube.com/BatmanArkhamVideos ● Twitter- http://www.twitter.com/ArkhamVideos ● Facebook - http://www.facebook.com/BatmanArkhamNews For more info and videos, visit http://www.Batman-Arkham.com and http://www.Games-Series.com
Views: 542856 Batman Arkham Videos
Clustered vs. Nonclustered Index Structures in SQL Server
 
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Clustered and nonclustered indexes share many of the same internal structures, but they're fundamentally different in nature. Watch Microsoft Certified IT Professional Jon Seigel explain the similarities and differences of clustered and nonclustered indexes, using a real-world example to show how these structures work to improve the performance of SQL queries. Blog post on primary key vs. the clustered index: http://voluntarydba.com/post/2012/10/02/The-Primary-Key-vs-The-Clustered-Index.aspx CREATE INDEX statement reference: http://technet.microsoft.com/en-us/library/ms188783.aspx ALTER INDEX statement reference: http://technet.microsoft.com/en-us/library/ms188388.aspx Index navigation internals by example: http://sqlblog.com/blogs/paul_white/archive/2011/08/09/sql-server-seeks-and-binary-search.aspx Sample index data is from the AdventureWorksLT2008R2 sample database: http://awlt2008dbscript.codeplex.com/releases/view/46169 Visit my channel for more database administration videos: https://www.youtube.com/voluntarydba Subscribe to get notified about my latest videos: https://www.youtube.com/voluntarydba?sub_confirmation=1 Read additional content on my blog: http://voluntarydba.com Follow on Twitter: https://twitter.com/voluntarydba Like on Facebook: https://facebook.com/voluntarydba
Views: 274508 Voluntary DBA
Introduction  to rman concepts | rman backup and recovery | Oracle Tutorial For Beginners
 
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The video gives an overview about rman backup and recovery concepts
Views: 42292 Wysheid Wysheid
B*Tree Index Types (Indexes in Oracle-2)
 
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This video will cover different types of B-tree indexes: Descending index,Reverse key index,Key Compressed Index B-tree cluster index,Index Organized Table(IOT):
Views: 15278 Anindya Das
Calculate query performance with Explain Plan in Oracle PLSQL.
 
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Explain plan is a wonderful utility in Oracle PL SQL. It helps you to understand how much cost a query takes to perform based on indexed table or table without index. In this oracle tutorial a full description is given on a table containing huge number of rows first based on index on a column and then without index.
Views: 3599 Subhroneel Ganguly
Oracle Tutorial - How to configure wallet manager step by step
 
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How to configure oracle wallet step by step. For more detail please visit on my official website www.ocptehcnology.com #walletmanager #oracle #ocptechnology
Views: 14807 OCP Technology
Steps to clone a database using rman
 
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This video discuss about the steps for cloning or refreshing a single instance database using rman
Views: 75895 Wysheid Wysheid
Batman Arkham Knight - Bleake Island - All Riddler Trophy Locations
 
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There are 37 Riddler Trophies on Bleake Island. Batman Arkham Knight has 315 Riddler Collectibles in total (179 Trophies, 40 Riddles, 6 Bomb Rioters, 90 Breakable Objects). Find all of their locations to complete Riddler's challenges and to lock him up in GCPD. This will earn you the "Riddle Me That" trophy / achievement. It's also required for 100% game completion and to initiate the full Knightfall Protocol. You can interrogate Riddler Informants on the streets of Gotham to unlock the collectible locations on your world map. Riddler informants are highlighted in green color. Instead of killing them you must press Triangle (PS4) / Y (XB1) to interrogate them. It's recommended that you beat the story first before collecting anything! This is to ensure that you have all the required gadgets and can access all areas. You can keep track of your progress in the Riddle Section of your world map. There you can see which objects you have found in each area. Please note that all 90 breakable objects together count only as 18 of the 243 Riddler challenges (every fifth one counts as one complete challenge). The Riddler trophies are green question mark items that you must pick up (usually locked away in rooms that require certain gadgets). The Riddles are little Puzzles and require you to scan certain objects in the world from a specific distance. The bomb rioters are thugs with bomb implants and you must shoot them with an electric charge. The breakable objects need to be destroyed with your batmobile. Overview of Collectibles by Area: Bleake Island = 37 Trophies, 11 Riddles, 3 Riot Bombers, 15 Breakable Objects Miagani Island = 38 Trophies, 10 Riddles, 3 Bomb Rioters, 15 Breakable Objects Founders' Island = 41 Trophies, 10, Riddles, 0 Bomb Rioters , 15 Breakable Objects Stagg Enterprises Airships = 21 Trophies, 3 Riddles, 0 Bomb Rioters, 15 Breakable Objects Panessa Studios = 21 Trophies, 3 Riddles, 0 Bomb Rioters, 15 Breakable Objects Arkham Knight HQ = 21 Trophies, 3 Riddles, 0 Bomb Rioters, 15 Breakable Objects All Riddler Collectibles Playlist: https://www.youtube.com/playlist?list=PLRr5L69yg_kGj9roh6fYVG49GbPKMYb20 TIMELINE: #1 - 0:05 #2 - 0:32 #3 - 0:57 #4 - 1:20 #5 - 1:56 #6 - 3:28 #7 - 4:16 #8 - 5:33 #9 - 5:58 #10 - 6:33 #11 - 6:59 #12 - 8:06 #13 - 8:25 #14 - 9:49 #15 - 10:49 #16 - 11:24 #17 - 11:44 #18 - 12:03 #19 - 12:52 #20 - 13:17 #21 - 14:34 #22 - 15:07 #23 - 15:46 #24 - 16:19 #25 - 16:57 #26 - 18:03 #27 - 18:33 #28 - 18:57 #29 - 19:18 #30 - 20:25 #31 - 21:25 #32 - 21:55 #33 - 23:28 #34 - 25:14 #35 - 26:01 #36 - 26:31 #37 - 27:10 Helped you out? Support this channel: http://www.powerpyx.com/help/ SUBSCRIBE: http://www.youtube.com/subscription_center?add_user=powerpyx ~~~~~~~~~~~~~~~~~~~~~~~~~~ Follow PowerPyx: http://www.powerpyx.com http://www.youtube.com/PowerPyx http://www.facebook.com/PowerPyx http://www.twitter.com/PowerPyx ~~~~~~~~~~~~~~~~~~~~~~~~~
Views: 1551498 PowerPyx
Efficient Function Calls From SQL (Part 6) : Function-Based Indexes
 
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The sixth part of a mini-series of videos showing how you can improve the performance of function calls from SQL. In this episode, we look at using function-based indexes to improve the performance of queries that use function calls in the WHERE clause. For more information see: https://oracle-base.com/articles/8i/function-based-indexes https://oracle-base.com/articles/misc/efficient-function-calls-from-sql#functions-in-the-where-clause Website: https://oracle-base.com Blog: https://oracle-base.com/blog Twitter: https://twitter.com/oraclebase Cameo by Ronald Bradford : Blog: http://ronaldbradford.com/blog/ Twitter: https://twitter.com/RonaldBradford Cameo appearances are for fun, not an endorsement of the content of this video.
Views: 1387 ORACLE-BASE.com
Why I Joined the Oracle Developer Advocates team
 
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I've been working with Oracle technology for nearly 20 years now. So what makes an IT professional after all that time, join the company itself. ====================================================== 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: 4170 Connor McDonald

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