Search results “Local global indexes oracle”
Local Vs Global Partitioned Index in Oracle 11g
The Video Explains the difference between Local Partitioned Indexes(Prefixed vs Non Prefixed Indexes). and Global Partitioned Index along with the challenges in maintaining Global partitioned Indexes when the underlying tables partitioned is dropped/truncated/Merged/Moved. Local Partitioned Index Shares the same boundaries as the table and are in the same number as table partitions they are widely used in DSS and DWH systems. While Global Partitioned Index are predominantly used in OLTP systems
Views: 5776 Tech Coach
Global Index rebuild scenario in Oracle Database 11g
Why and How we need to rebuild global Index in Oracle 11g
Views: 3026 Athar Fahad
Oracle Performance Tips - Indexes
Learn about index and types of indexes.
Views: 2136 Saurabh Kumar
Stop Rebuilding Global Indexes! Oracle 12c Global Index Maintenance
Stop rebuilding Global Indexes! Stop worrying about invalidating Global Indexes! Oracle 11g gave us "UPDATE GLOBAL INDEXES". 12c provides a huge improvement: orphaned_entries! In this tutorial, Oracle Certified Master John Watson demonstrates how 11g and 12c handle Global Index maintenance with orphaned entries and overnight maintenance job PMO_DEFERRED_GIDX_MAINT_JOB.
Views: 2387 SkillBuilders
index partioning in oracle
Views: 320 oracle dba tutorial
Oracle Database 12c: Partitioning Improvements with Tom Kyte
Tom Kyte introduces the new partitioning improvements in Oracle Database 12c, followed by a demo of global index maintenance. For more information: "Asynchronous Global Index Maintenance for Dropping and Truncating Partitions" http://www.oracle.com/pls/topic/lookup?ctx=db121&id=VLDBG14107 "Changes for Very Large Databases and Partitioning in Oracle Database 12c Release 1" http://www.oracle.com/pls/topic/lookup?ctx=db121&id=VLDBG14100 "ALTER INDEX COALESCE Clause" http://www.oracle.com/pls/topic/lookup?ctx=db121&id=SQLRF52782 "DBMS_PART.CLEANUP_GIDX Procedure" http://www.oracle.com/pls/topic/lookup?ctx=db121&id=ARPLS74409
Views: 13222 OracleDBVision
Oracle Tutorial || online training||Adv Sql | Indexes Part - 1 by basha
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01 Overview of table Partition in oracle
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: 7003 OnLinE ReSoUrCe
Tech Tip: Using Global Hash Partitioned Indexes
Developer advocate Connor McDonald explains when and how to use global hash partitioned indexes in this 2 Minute Tech Tip. https://developer.oracle.com/ https://cloud.oracle.com/en_US/tryit
Views: 119 Oracle Developers
Oracle DB - Dynamic Performance View & Data Dictionary
Oracle DB - Dynamic Performance View & Data Dictionary Watch More Videos at: https://www.tutorialspoint.com/videotutorials/index.htm Lecture By: Mr. Parth Panjabi, Tutorials Point India Private Limited
Oracle - Global is Local
Views: 64 IFBTA
Oracle - SQL - Creating Index
Oracle - SQL - Creating Index Watch more Videos at https://www.tutorialspoint.com/videotutorials/index.htm Lecture By: Mr. Anadi Sharma, Tutorials Point India Private Limited.
Global Temporary Tables in Oracle Database - DBArch Video 21
Learn about Global Temporary Tables in Oracle Database. You will learn the internals of Global Temporary tables in Oracle database, and also a demo for the same. 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: 5398 Ramkumar Swaminathan
Indexes in Oracle :Index Scan Methods :Part 2
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: 6655 Tech Coach
What Impact Do Indexes Have on Inserts?: Finding All the Red Sweets Part 0
Creating indexes can improve query performance. Oracle must maintain the indexes however. This increases the work it must do whenever you modify data in indexed columns. In this video Chris looks at this overhead using a real world analogy - recording the color of all the candies stored in party bags! ============================ 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: 2650 The Magic of SQL
Are my index statistics wrong?  Why does NUM_ROWS equal zero?
blog: connor-mcdonald.com Highlights from the April DBA Office Hours session. Office Hours is 100% free Q&A sessions held every month by Oracle experts to help you succeed with the Oracle suite of technologies. Music: Smells Like Summer - Del (Vlog Music No Copyrighted) Video Link: https://youtu.be/IrkMsqcOjGU
Views: 271 Connor McDonald
Index Organized Tables and Examples
Index Organized Tables and Examples watch more videos at https://www.tutorialspoint.com/videotutorials/index.htm Lecture By: Mr. Parth Panjab, Tutorials Point India Private Limited
How to reduce Buffer Busy Waits using Hash Partitioned Indexes
The clip explains how Buffer Busy Waits are being caused and how they can be reduced with Hash Partitioned Indexes. A text version is here: https://uhesse.com/2016/12/02/how-to-reduce-buffer-busy-waits-with-hash-partitioned-indexes-in-oracle/
Indexing in Oracle :B-Tree,Bitmap Indexing
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: 13460 Tech Coach
PL-SQL tutorial 19 - Global variable in PLSQL
Hi guys this videos very helpful for everyone i am going to explain Global variable in PLSQL part 2. #GlobalvariableinPLSQL Oracle database Unbeatable,Unbreakable Platform..
Views: 1157 Oracle World
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: 3533 Tech Coach
This video demonstrates the usage and working of GTT in oracle SQL. The video shows how internally oracle works with GTT, and also explains the working of ON COMMIT DELETE ROWS and ON COMMIT PRESERVER ROWS in oracle with easy examples.
Views: 8693 Kishan Mashru
Oracle 11g Hints Overview
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: 51837 Anindya Das
Partitioning Enhancements in oracle 12c
Oracle has made 4 significant enhancements in 12c. 1.Mixing Interval and Reference partitioning 2.DDL operations on multiple partitions 3.Global Index maintenance 4.Cascade Operations from parent to child, Truncate and drop This video explains the enhancements in detail with practical examples
Views: 1433 Tech Coach
Global to Local: Introduction
This video is an introduction and overview of the paper "From Global to Local: an index bound for umbilic points on smooth convex surfaces" by Brendan Guilfoyle and Wilhelm Klingenberg (available at http://arxiv.org/abs/1207.5994) .
Views: 3704 Brendan Guilfoyle
Reverse Key Index :Types of Btree Index in Oracle
Please subscribe to my new channel. https://www.youtube.com/c/AnIndianAbroadd The Videos explains how Reverse Btree Index works and in what condition they shall be used. Reverse Btree index are used to solve index block contention. You can't perform range scans in reverse btree Index.
Views: 1958 Tech Coach
Oracle Partitioning
Oracle Partitioning watch more videos at https://www.tutorialspoint.com/videotutorials/index.htm Lecture By: Mr. Parth Panjab, Tutorials Point India Private Limited
Types of Indexes (A B-tree index,A bitmap index )
Hi guys today is very most important topic in oracle is INDEXES help to increase performance at the time of search and modification into table records. #TypesofIndexes #B-treeindex#bitmapindex
Views: 28387 Oracle World
PL-SQL tutorial 18 - How to use the Global variable in PL/SQL
Hi guys this videos very helpful for everyone i am going to explain How to use the Global variable in PL/SQL .Oracle database Unbeatable,Unbreakable Platform..
Views: 729 Oracle World
SQL: Global Temporary Table (GTT) Part-1
In this tutorial , you'll learn about GTT...
Views: 21376 radhikaravikumar
08 09 Demo   Invisible Indexes
Views: 170 oracle ocm
Temporary tables in SQL Server   Part 34
In this video we will learn about 1. What are temporary tables 2. The 2 different types of temporary tables -- Local Temporary Tables and Global Temporary tables 3. Difference between local and global temp tables Text version of the video http://csharp-video-tutorials.blogspot.com/2012/09/temporary-tables-in-sql-server-part-34.html Slides http://csharp-video-tutorials.blogspot.com/2013/08/part-34-temporary-tables.html All SQL Server Text Articles http://csharp-video-tutorials.blogspot.com/p/free-sql-server-video-tutorials-for.html All SQL Server Slides http://csharp-video-tutorials.blogspot.com/p/sql-server.html All Dot Net and SQL Server Tutorials in English https://www.youtube.com/user/kudvenkat/playlists?view=1&sort=dd All Dot Net and SQL Server Tutorials in Arabic https://www.youtube.com/c/KudvenkatArabic/playlists
Views: 175764 kudvenkat
Partitioning in Oracle Explained with Real project Examples : Introduction
This Video series will explain partitioning and its use cases referencing real project examples from different domain. It will explain what when and why of partitioning in a simple but elaborate manner. This is the 1st video which explains why partitioning is required and what are the advantages we gain from it. The following videos will explain when should we do it and how.
Views: 21577 Tech Coach
Partitioning in Oracle - Performance Basics
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: 9008 Tech Coach
Secretwars #0243 - Markets Review: A global index survey.
Mostly breakdowns, confirmed or about to. Survival mode. $efa $eem $nya $spx $ndx
Views: 38 Patrick Karim
skip_unusable_indexes is NOT skipping unusable indexes!
blog: connor-mcdonald.com Highlights from the April DBA Office Hours session. Office Hours is 100% free Q&A sessions held every month by Oracle experts to help you succeed with the Oracle suite of technologies. Music: Smells Like Summer - Del (Vlog Music No Copyrighted) Video Link: https://youtu.be/IrkMsqcOjGU
Views: 295 Connor McDonald
Space Management in Extents and Segments - DBArch Video 31 / DBPerf Video 13
In this video you will understand about the following - Dictionary managed Vs Locally Managed Tablespaces - Manual Vs Automatic Segment Space Management - PCTFREE and PCTUSED - Row Migration and Row Chaining . 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: 7198 Ramkumar Swaminathan
Difference between Local and Global temporary table in SQL Server || SQL Interview Question
if you have any doubt... comment me I hope you will enjoy this video please like and share with your friends
Views: 1001 Interview Point
Range Partitioning in Oracle
In this video I have explained what is range partitioning along with it's 2 real project use cases. I have also explained interval Partitioning as an extension of Range partitioning If you have not watched my Initial Videos on partitioning I will recommended watching them before watching this video Apologies for the 10 second video glitch between 6 and 7 minutes :(
Views: 4105 Tech Coach
Hash Partitioning in Oracle
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: 5126 Tech Coach
[High Pass Guarantee] 2017 Latest Oracle 1Z0-062 Dumps Questions And Answers Free Try
http://www.passitexams.com/1z0-062.html The best and most updated Oracle 1Z0-062 dumps exam training materials in PDF format, download one of the many PDF readers that are available for free. Exams: QUESTION 1 You are administering a database stored in Automatic Storage Management (ASM). You use RMAN to back up the database and the MD_BACKUP command to back up the ASM metadata regularly. You lost an ASM disk group DG1 due to hardware failure. In which three ways can you re-create the lost disk group and restore the data? A. Use the MD_RESTORE command to restore metadata for an existing disk group by passing the existing disk group name as an input parameter and use RMAN to restore the data. B. Use the MKDG command to restore the disk group with the same configuration as the backed-up disk group and data on the disk group. C. Use the MD_RESTORE command to restore the disk group with the changed disk group specification, failure group specification, name, and other attributes and use RMAN to restore the data. D. Use the MKDG command to restore the disk group with the same configuration as the backed-up disk group name and same set of disks and failure group configuration, and use RMAN to restore the data. E. Use the MD_RESTORE command to restore both the metadata and data for the failed disk group. F. Use the MKDG command to add a new disk group DG1 with the same or different specifications for failure group and other attributes and use RMAN to restore the data. Correct Answer: ACF QUESTION 2 In order to exploit some new storage tiers that have been provisioned by a storage administrator, the partitions of a large heap table must be moved to other tablespaces in your Oracle 12c database? Both local and global partitioned B-tree Indexes are defined on the table. A high volume of transactions access the table during the day and a medium volume of transactions access it at night and during weekends. Minimal disrupt ion to availability is required. Which three statements are true about this requirement? A. The partitions can be moved online to new tablespaces. B. Global indexes must be rebuilt manually after moving the partitions. C. The partitions can be compressed in the same tablespaces. D. The partitions can be compressed in the new tablespaces. E. Local indexes must be rebuilt manually after moving the partitions. Correct Answer: ACD Red more: https://youtu.be/aLx6RnhvXTU
Views: 44 exam dumps
Composite Partitioning in Oracle
This video is the 6th Video in the series partitioning in oracle. It explains the different composite partitioning approaches and in what scenario they should be used with real project use case explanations.
Views: 2392 Tech Coach
07 06 Index Skip Scan Operations
Views: 826 oracle ocm
What is the differences between Temporary Table and Global Temporary Table In MSSQL Server
In this video you will find difference between Temporary table and global temporary table.The scope of temporary table is only up-to current windows connection once you you will closed that then it automatically has been deleted by MSSQL server.So let's see the main difference between here. Temporary Table: 1) table name must start with # prefix of table name. 2) Scope of this table up-to current session window. 3) Multiple user can create same name temporary table. 4)you can't access temporary table outside scope. Global Temporary Table: 1) table name must start with ## prefix of table name. 2) Scope of this table up-to current MSSQL server opened window. 3)Global table can only be unique name.Multiple use can't create same name global tables. 4) you can access Global temporary table outside scope. Hope you like this video.If you like then subscribe my channel.Thanks for watching. You can Follow me on Twitter, Facebook,LinkedIn, Instagram https://twitter.com/ErAmarsingh1991 https://www.facebook.com/TechVideosByAmarSingh https://www.linkedin.com/in/amar-singh-67313277/ https://www.instagram.com/er.amarsingh1991/
What is Temporary Table & Use of Temporary Table in SQL Server || Interview Question By D.K. Gautam
Don't forget to watch my next video "Diff between Local and Global Temporary Table" click the link https://youtu.be/O9TBCaOP7zQ
Views: 247 Interview Point
Oracle Performance - Result Cache Exercises
Oracle Performance - Result Cache Exercises
Views: 694 The Silent DBA
Think locally, Win Globally - Designing for Emerging Markets with Apala Lahiri Chavan
Apala Lahiri Chavan, expert in Contextual Innovation and Design for Emerging Markets talks about the importance of thinking locally when approaching global markets. http://www.humanfactors.com/index.asp Join the conversation with Apala at http://www.twitter.com/FuturistApala or visit http://www.humanfactors.com/emerging_markets/book.html to download a free chapter of her book. Transcription: Think global, lose local, does that sound a bit strange, how can one think globally and yet lose locally? Well take a look at what happened to Nokia in India where they lost market share in certain category of phones to a 2008 local Indian startup company called Micromax. Or let's move to China. Take a look at Baidu, the Chinese search engine with about 99% market share, how did that happen, with major international competition right there? Do you know what the name Baidu means? I ask because there is a clue there about the success of Baidu. The word Baidu literally means hundreds of times, an allusion to a 12th century Chinese poem. It represents a persistent search for the ideal. So you can see right from the name, there is a connection to the local context, a special significance that makes the Chinese user population resonate with Bidu, look at Baidu more than the just a search engine, and why not because Baidu has features such as the very popular Post Bar, the largest bulletin board of its kind in China, or the free online music content it provides. It's Baidu ability to understand local needs and aspirations and to act on them that makes Bidu such a winner locally. And this is what I have been saying for a decade now as I've traveled the world and spoken at conferences but I will repeat it once again because it's so very important today. If you are only thinking globally you won't win locally. Why is it so important today, why can you not afford to let this happen today? Three critical reasons. Recent developments, number one, all the action is moving to the emerging markets. Consider this 57% of the nearly one billion households with more than $20,000 of annual income will be living in the emerging markets in the next 15 years. Or the fact that seven emerging economies, that is China, India, Brazil, Mexico, Russia, Indonesia, and Turkey are expected to contribute about 50% of the global GDP growth in the next decade. With all this action moving to the emerging markets, how can you afford not to think locally? Second reason, the local population, the local user population in the emerging markets, they've changed a lot in the last decade, and how so, the local population today, is very articulate, very clear, and very demanding about the kinds of products and services that they won't to buy and use. As Mckinsey quarterly pointed out in a very interesting article in April of 2011, long gone are the days when global corporations could charge emerging market customers a premium for products that were developed, designed, produced in completely different context. Today the ability to succeed in emerging markets requires not only that you understand local preferences, local tastes but also that you can actually produce the products and services in the context of those cultures. And third reason, the emerging markets are hot beds of entrepreneurship. So if you are not thinking locally about your potential emerging market customer be absolutely sure there is a local entrepreneur next to your local potential customer who is already thinking. In fact, the emerging markets are very much like galaxies unto themselves and you have to aim your Hubble telescope of strategy at the emerging markets deep fields and understand the local laws of nature that will enable you come up with the most appropriate products, just like the Hubble telescope actually did, when it was aimed at an area of space which didn't seem to have anything in it and when the images were processed what the scientists found were 30,000 galaxies in that particular deep field of space. So I recommend right now, get your Hubble telescopes out and aim them at the emerging markets. Remember the emerging markets have already aimed their strategy telescopes at the mature markets that developed market deep fields and are experiencing immense successes. So it's time that you start the other way around and start thinking locally. You will lose nothing but your apprehensions about not having the right products. About Apala Lahiri Chavan, Chief Oracle and Innovator, Human Factors International, Inc. Apala is a world-renowned expert on Contextual Innovation and Design for Emerging Markets—the discipline of creating breakthrough product concepts and adapting existing products, services, and technologies to new markets. HP Labs, adidas, Nokia, Sony Ericsson, NCR, and Intel are just a few of the companies that have benefited from Apala's innovative, pioneering techniques in this exciting and growing field.

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