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Optimizer Statistics
 
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Optimizer Statistics watch more videos at https://www.tutorialspoint.com/videotutorials/index.htm Lecture By: Mr. Parth Panjab, Tutorials Point India Private Limited
ORACLE WORLD - Understanding Oracle Optimizer Statistics part-1st
 
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Hello friends in this video i'm just showing to you what is optimizer statistics into oracle,optimizer help to improve the performance of sql statements during execution period.Oracle database Unbeatable,Unbreakable Platform..
Views: 6613 Oracle World
0303 Gathering Statistics
 
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ORACLE
Views: 1554 oracle ocm
Oracle Performance - DBMS_STATS
 
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Oracle Performance - DBMS_STATS
Views: 3881 The Silent DBA
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: 17149 radhikaravikumar
Oracle Performance Tuning - Oracle Enterprise Manager - Understanding Statistics
 
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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: 4176 itversity
Oracle Database Performance Tuning - Optimizer Statistics Gathering
 
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In this video we explain how to gather the database optimizer statistics #performancetuning, #oracledatabase, #oracle, #database, #optimizerstatistics, #learning, About Optimizer Statistics Collection In Oracle Database, optimizer statistics collection is the gathering of optimizer statistics for database objects, including fixed objects. The database can collect optimizer statistics automatically. You can also collect them manually using the DBMS_STATS package. Purpose of Optimizer Statistics Collection The contents of tables and associated indexes change frequently, which can lead the optimizer to choose suboptimal execution plan for queries. To avoid potential performance issues, statistics must be kept current. To minimize DBA involvement, Oracle Database automatically gathers optimizer statistics at various times. Some automatic options are configurable, such enabling AutoTask to run DBMS_STATS. Stats collection Stats gathering database performance tuning, 10g, 11g 12c database administration
Views: 63 KINGS TUBE
Ahmed Jassat - Oracle Ebus Gather Schema from 3 hours to 3 minutes
 
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Ahmed Jassat - Oracle Ebus Gather Schema from 3 hours to 3 minutes
Views: 970 Ahmed Jassat
ORACLE WORLD - Understanding Oracle Optimizer Statistics part-2nd
 
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Hello friends in this video i'm just showing to you what is optimizer statistics into oracle,optimizer help to improve the performance of sql statements during execution period. Oracle database Unbeatable,Unbreakable Platform.
Views: 2266 Oracle World
Oracle Database 12c: Enhanced Optimizer Statistics with Tom Kyte
 
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Tom Kyte discusses enhanced optimizer statistics followed by a demo of on-load statistics gathering in Oracle Database 12c. "Online Statistics Gathering for Bulk Loads" http://www.oracle.com/pls/topic/lookup?ctx=db121&id=TGSQL344 "Histograms" http://www.oracle.com/pls/topic/lookup?ctx=db121&id=TGSQL366 "CREATE TABLE ... AS SELECT" http://www.oracle.com/pls/topic/lookup?ctx=db121&id=DWHSG8317 "CREATE TABLE" http://www.oracle.com/pls/topic/lookup?ctx=db121&id=SQLRF01402
Views: 7719 OracleDBVision
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: 92903 radhikaravikumar
Query Analysis and Optimizing in Oracle
 
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Database Management Systems 11. Query Analysis and Optimizing in Oracle ADUni
Views: 82762 Chao Xu
0302 About Optimizer Statistics
 
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ORACLE
Views: 86 oracle ocm
[Oracle EBS Performance Tuning: 2/4 ] Gathering Performance Diagnostics for Oracle EBS
 
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Multiple ways of collecting diagnostics for troubleshooting performance issues. The series of SQL tuning videos presents performance tuning tips for developers
Views: 4440 anilkumar ghorakavi
Statistics in Oracle and SQL Server
 
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The better the information that Oracle and SQL Server have about the data in a database, the better choices they can make on how to execute the SQL. Statistics are Oracle's and SQL Server's chief source of information. If this information is out of date, performance of queries will suffer. In their third live 'Oracle vs. SQL Server' discussion, Jonathan Lewis (Oracle Ace Director, OakTable Network) and Grant Fritchey (Microsoft SQL Server MVP) will look at statistics in Oracle and SQL Server. Do Oracle and SQL Server gather the same information? What does each optimizer use this information for? And how can Oracle and SQL Server administrators override the defaults for better (or worse) performance? These are just some of the questions that Jonathan and Grant will try to answer in another not-to-be-missed session. As before, this will be a live discussion with limited supporting slides, and will conclude with a Q+A session with Jonathan and Grant. Be prepared for a lively exchange that will not only entertain, but will teach you key concepts on Oracle and SQL Server. For our complete archive please go to http://www.red-gate.com/oracle-webinars
Views: 2335 Redgate Videos
Stats lesson 1   Gathering Data
 
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MBF3C - Statistics Lesson 1 - Mrs. Meyers
Views: 1511 MrsLZarate
Oracle SQL Performance Tuning  1
 
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Oracle SQL Performance Tuning and tips Cost Based Optimizer (CBO) Rule Based Optimizer (RBO) SQL Explain Plan Oracle Explain Plan
Views: 9474 TechLake
Oracle Tutorial - How to add virtual column in oracle 11g
 
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Hello friends in this video i'm going to demonstrate you how to add virtual column in ORACLE 11g step by step. Oracle 11g supports virtual columns which are derived from the other columns in the table. You can use the virtual columns in your queries, you can index them, you can collect the statistics, etc. There are few restrictions on the virtual columns. You cannot write/insert the data into virtual columns. There is no support for index_organized, external, object, cluster, temporary tables.
Views: 1303 OCP Technology
DB Statistics
 
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Views: 1137 chaitanya kumar
Oracle Partitioning - Introduction
 
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Oracle Partitioning - Introduction
Views: 1287 The Silent DBA
Oracle High Water Mark
 
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A Brief video about Oracle's Table High Water Mark and How to resolve issues associated with it Music: https://www.bensound.com
Views: 193 ORA-600
Statistics and Predictive Analytics in Oracle Database and Hadoop
 
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Statistics and Predictive Analytics in Oracle Database and Hadoop: Oracle Technology Summit - Virtual Technology Days 2015
Are my index statistics wrong?  Why does NUM_ROWS equal zero?
 
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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: 258 Connor McDonald
Lock and Unlock table statistics in Oracle Database
 
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Lock and Unlock table statistics in Oracle Database
Session-Private Statistics for Global Temporary Tables (GTTs) in Oracle 12c
 
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This video the session-private statistics functionality for Global Temporary Tables (GTTs) in Oracle 12c. For more information see: https://oracle-base.com/articles/12c/session-private-statistics-for-global-temporary-tables-12cr1 Website: https://oracle-base.com Blog: https://oracle-base.com/blog Twitter: https://twitter.com/oraclebase Cameo by Enrique Aviles Twitter: https://twitter.com/eaviles94 Cameo appearances are for fun, not an endorsement of the content of this video.
Views: 713 ORACLE-BASE.com
Why do you need the Oracle Database Optimizer?
 
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Presentations explains the essential idea of the Oracle Database Optimizer
Views: 4401 Jean-Francois Verrier
OHM2013: Gathering Statistics with the SpaceApi
 
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For more information visit: http://bit.ly/OHM13_web To download the video visit: http://bit.ly/OHM13_down Playlist OHM 2013: http://bit.ly/OHM13_pl Speaker: bastinat0r In my current project I gather and visualize data from the spaceAPI. I will tell people about my project and what is cool about spaceAPI. Because we have no official opening hours at our hackerspace I wanted to gather statistics to see when the door is open. Then I extendet the software to work for all spaces in the directory of spaceAPI.net - you can see the result at http://spacestatus.bastinat0r.de
Views: 262 Christiaan008
Oracle Explain Plan
 
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Oracle SQL Executions: Explain Plan and Execution Plan A simple introduction with a single table example
Views: 878 Hemant K Chitale
How to tune Oracle SQL with Histograms: Part 1 The Importance of Histograms
 
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Histograms are essential ingredient of Tuning SQL in the Oracle Database. In Oracle 12c there are new features related to Histogram. In this part of this histogram tutorial, Oracle Certified Master John Watson describes the importance of histograms. Histograms collect essential statistics such as data skew and thus accurately predict how many rows a predicate will select. This impacts critical decisions such as join order, join method and access method.
Views: 2113 SkillBuilders
Oracle SQL Monitoring - Performance Analysis
 
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SQL Monitoring is the best new feature of Oracle 11g for performance analysts, developers and support teams. Finally there is a tool that provides the most accurate, useful and interesting information when a SQL statement is running for longer than expected in a clear format with no minimal advance configuration requirements: What execution plan is really being used? What row source cardinality calculations are incorrect? What steps in the plan are taking the most time and consuming most resources? In this presentation, Doug Burns will demonstrate the various ways of accessing SQL Monitoring functionality and use example reports to show how the information can be used to analyse both currently running and completed statements. It will also describe and offer solutions to some of the minor quirks you might encounter. For our complete archive, and to sign up for upcoming webinars please go to http://www.red-gate.com/oracle-webinars
Views: 5047 Redgate Videos
Oracle DB 12c - Resource Manager
 
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Oracle DB 12c - Resource Manager Watch more videos at https://www.tutorialspoint.com/videotutorials/index.htm Lecture By: Mr. Parth Panjabi, Tutorials Point India Private Limited
PL/SQL tutorial : Trigger in Oracle Database 11g Complete guide
 
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Learn in depth about trigger in oracle database 11g, and usage of trigger in Database, different types of trigger with syntax for various events along with writing advance trigger and capturing all details regarding authentication. Explained Instead of trigger. Trigger in Oracle, Trigger in PL/SQL, Oracle Trigger, PL/SQL Trigger, What is Trigger in pl/sql, How to use Trigger in pl/sql, How to write a Trigger in oracle, How to design Trigger in pl/sql, DDL trigger, DML trigger, Instead of trigger, Compound trigger, Logon trigger, Introduction to Triggers You can write triggers that fire whenever one of the following operations occurs: DML statements (INSERT, UPDATE, DELETE) on a particular table or view, issued by any user DDL statements (CREATE or ALTER primarily) issued either by a particular schema/user or by any schema/user in the database Database events, such as logon/logoff, errors, or startup/shutdown, also issued either by a particular schema/user or by any schema/user in the database Triggers are similar to stored procedures. A trigger stored in the database can include SQL and PL/SQL or Java statements to run as a unit and can invoke stored procedures. However, procedures and triggers differ in the way that they are invoked. A procedure is explicitly run by a user, application, or trigger. Triggers are implicitly fired by Oracle when a triggering event occurs, no matter which user is connected or which application is being used. How Triggers Are Used Triggers supplement the standard capabilities of Oracle to provide a highly customized database management system. For example, a trigger can restrict DML operations against a table to those issued during regular business hours. You can also use triggers to: Automatically generate derived column values Prevent invalid transactions Enforce complex security authorizations Enforce referential integrity across nodes in a distributed database Enforce complex business rules Provide transparent event logging Provide auditing Maintain synchronous table replicates Gather statistics on table access Modify table data when DML statements are issued against views Publish information about database events, user events, and SQL statements to subscribing applications Linkedin: https://www.linkedin.com/in/aditya-kumar-roy-b3673368/ Facebook: https://www.facebook.com/SpecializeAutomation/
Views: 8339 Specialize Automation
How to gather session stats using Session Built In Variable.
 
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How to gather session stats using Session Built In Variable? Use session built in variable at command or email component of a respective task's command tab.
Views: 1718 Mandar Gogate
The Optimum Histogram Utility DEMO 1 - Maximize Oracle Performance and SQL Execution Efficiency
 
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Demonstration of the influence of the Optimum Histogram utilities on the estimation accuracy of the Oracle Optimizer in a 11.2.0.1 Oracle Database. Tests highlight the increase in estimation accuracy on the optimizer and impact on execution plan selection. Tests conducted against a numeric column in a heap table and execution plan results and statistics captured to indicate impact on the optimizers execution plan selection of the OHU histograms. IMPORTANT NOTE: This utility is not a substitute for oracle's dbms_stats which calculates highly valuable statistics for oracle objects. It is an add on utility that can be used on columns with skewed distribution. Please see demonstration one for overview of architecture
Views: 4156 Doug Laughlin
How to Gather SQL Resource Consumption Metrics in Oracle
 
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Presented by Karen Morton Tues 8th May 2012 Summary SQL is utilized to return data via our applications to service user requests. Whether it's a single customer lookup or a huge month end summary report, the SQL we write must gather the correct data and return it to the user. Ensuring that the SQL you write can do this in a timely and efficient manner, both now and in the future, requires that you measure and evaluate what resources your query must use. In this webinar, we'll cover several methods for how to collect data that show you precisely how your SQL consumes resources: Using AUTOTRACE Using DBMS_XPLAN.DISPLAY_CURSOR Using Report SQL Monitor Using ASH (Active Session History) and AWR (Automatic Workload Repository) data You'll learn how to utilize the data to understand the work your SQL is doing and the resources it consumes; identify currently evident performance issues as well as areas that could be problematic in the future; and modify your SQL to use less resources more efficiently while still returning the desired results. A live Q+A session with Karen Morton follows the presentation. For our complete archive, and to sign up for upcoming webinars please go to http://www.red-gate.com/oracle-webinars
Views: 7076 Redgate Videos
ORACLE WORLD-Understanding Oracle Optimizer plans part-3rd
 
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Hello friends in this video i'm just showing to you what is optimizer statistics into oracle,optimizer help to improve the performance of sql statements during execution period.
Views: 1508 Oracle World
SQL Server DBA Tutorial 48-Update Statistics of All the Databases or Single Database in SQL Server
 
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In this video you will learn how to update Statistics of All databases in SQL Server using SQL Server Management studio as well as using T-SQL Script. It shows different options of updating the statistics such as Index statistics, column statistics and statistics of single database using SQL Server Management Studio as well as using T-SQL Script. Blog post link for the video with script http://sqlage.blogspot.com/2015/04/how-to-update-statistics-stats-of-all.html Visit our website to check out SQL Server DBA Tutorial Step by Step http://www.techbrothersit.com/2014/12/sql-server-dba-tutorial.html
Views: 16840 TechBrothersIT
Oracle SQL Tuning - Explain Plan Lies?
 
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Do you use EXPLAIN PLAN to tune Oracle SQL? Does it always "tell the truth", or does it "lie". (Maybe it's not the whole truth!) In this free tutorial from SkillBuilders' Oracle Certified Master John Watson, you will learn why the execution plan generated by EXPLAIN PLAN can be misleading and what to do about it. After a brief lecture, John demonstrates exactly why. You'll hear about dynamic sampling, adaptive cursor sharing (11g), adaptive execution plans (12c) and of course, bind variables. John demonstrates how bind variables cause misleading execution plans using dbms_xplan.display and dbms_xplan.display_cursor. To get the most from this tutorial, you should have some understanding of hard parse, soft parse, cardinality, histograms. See all SkillBuilders FREE Oracle Database tutorials at http://www.skillbuilders.com/free-oracle-tutorials.
Views: 3243 SkillBuilders
How to Collect STATSPACK
 
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Views: 441 Ray Wong
Oracle's Elixir Founder talks creating the No. 1 LoL Esports Statistics + Analytics Website
 
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MarkZ sits down for an interview with Tim "Magic" Sevenhuysen, a man who has been working behind the scenes to provide important statistics and analytical tools for analysts, coaches, the media, and more in the world of League of Legends esports. Among those in the LoL esports field, Oracle's Elixir has become the go-to place to obtain League of Legends statistics which have become increasingly valuable as teams delve into the numbers to help give their players an extra edge. Statistics from the website are regularly referenced by broadcasters, writers, and players. The site is often referenced and featured on the LCS, LCK, LMS, CBLoL, and Intel Extreme Masters broadcasts to name a few places where the data is put to use. Connect with us for more content: League of Legends Videos: https://goo.gl/MoeSRf Overwatch Videos: https://goo.gl/XhAe5O Esports Chatter: https://goo.gl/Uk07gI PROFiles Videos: https://goo.gl/fqMp7e Website: http://www.akshonesports.com Facebook: https://www.facebook.com/akshonesports/ Instagram: https://www.instagram.com/akshonesports/ Twitter: https://twitter.com/akshonesports You can follow Tim and his work here: https://oracleselixir.com Twitter: https://goo.gl/ZHZN7K
Oracle Cost Based Optimizer Advanced Session
 
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Presented by Randolf Geist 01 August 2012 Summary Building on the previous Cost-Based Optimizer Basics webinar, in this almost "zero-slide" session we'll explore different aspects of the Cost-Based Optimizer that haven't been covered or only mentioned briefly in the 'basics' session. This is a continuous live demonstration including topics like: Clustering Factor, Histograms, Dynamic Sampling, Virtual Columns, Daft Data Types and more. If you've ever asked yourself why a histogram can be a threat to database performance and why storing data using the correct data type matters regarding Execution Plans then this session is for you. It is recommended, although not required, to watch the recording of the 'basics' webinar first. A live Q+A session with Randolf Geist will follow the presentation. For our complete archive, and to sign up for upcoming webinars please go to http://www.red-gate.com/oracle-webinars
Views: 6580 Redgate Videos
Oracle 12c RAC Upgrade - Syed Jaffar Hussain
 
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Originally broadcast by Red Gate on August 29, 2013 In this webinar you will learn how to upgrade a 2 node Oracle 11gR2 clusterware and database to Oracle 12c, and the advantages of doing so. The session will also cover downgrading an upgraded cluster to a previous Oracle release. A live Q&A session with Syed Jaffar Hussain follows the presentation. More Oracle webinars at: http://www.red-gate.com/oracle-webinars
Views: 10755 Redgate Videos

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