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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: 6598 Oracle World
Oracle Performance - DBMS_STATS
 
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Oracle Performance - DBMS_STATS
Views: 3876 The Silent DBA
0303 Gathering Statistics
 
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ORACLE
Views: 1552 oracle ocm
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: 17118 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: 4171 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
Let's Learn Teradata Lesson 82: Collect Statistics
 
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Explore Teradata with Tera-Tom of Coffing Data Warehousing! In this lesson, learn about the Collect Statistics function in Teradata!
0302 About Optimizer Statistics
 
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ORACLE
Views: 81 oracle ocm
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: 7707 OracleDBVision
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: 2264 Oracle World
How to Collect STATSPACK
 
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Views: 437 Ray Wong
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
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
Stats lesson 1   Gathering Data
 
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MBF3C - Statistics Lesson 1 - Mrs. Meyers
Views: 1508 MrsLZarate
[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: 4435 anilkumar ghorakavi
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: 1298 OCP Technology
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: 7067 Redgate Videos
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: 9296 TechLake
Query Analysis and Optimizing in Oracle
 
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Database Management Systems 11. Query Analysis and Optimizing in Oracle ADUni
Views: 82717 Chao Xu
Lock and Unlock table statistics in Oracle Database
 
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Lock and Unlock table statistics in Oracle Database
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
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: 92715 radhikaravikumar
Oracle tutorial : Using execution plan to optimize query in oracle
 
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Oracle tutorial: Explain plan for query optimization in Oracle PLSQL oracle tutorial for beginners using execution plan to optimize query sql query analyzer sql query cost analysis https://techquerypond.wordpress.com This oracle tutorial show you how to use EXPLAIN PLAN in oracle. This video covers how to check cost of the query from DBMS_XPLAN.DISPLAY . You can find the cost of the query using the Using EXPLAIN PLAN FOR and based on the result you can optimize the query for faster performance. Subscribe on youtube: https://www.youtube.com/channel/UCpiyAesWNYOXSz5GPq8lbkA For more tutorial please visit #techquerypond https://twitter.com/techquerypond
Views: 8832 Tech Query Pond
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: 2106 SkillBuilders
DB Statistics
 
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Views: 1132 chaitanya kumar
Stats Explanation
 
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Oracle Rugby offers an insight to how stats are calculated in tipping for more go to: http://oraclerugby.com/
Views: 176 Oracle Rugby
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: 8274 Specialize Automation
Oracle  AUTOTRACE Fundamentals to Analyze & Tune SQL
 
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This Tutorial will explain fundamentals of Oracle AUTOTRACE. Set up & Use AUTOTRACE. Review PLAN & Statistics generated by AUTOTRACE. Understanding Statistics details.
Views: 22455 Anindya Das
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: 712 ORACLE-BASE.com
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
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: 4152 Doug Laughlin
Let's Learn SQL! Lesson 52 : Collecting Statistics on a Volatile Table!
 
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Explore SQL with Tom Coffing of Coffing Data Warehousing! In this lesson, learn about how you can Collect Statistics on a Volatile Table!
Oracle Explain Plan
 
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Oracle SQL Executions: Explain Plan and Execution Plan A simple introduction with a single table example
Views: 873 Hemant K Chitale
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: 1716 Mandar Gogate
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: 1507 Oracle World
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
SQL Server Statistics – Are My Stats Objects Being Used?
 
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In this video, you will learn some quick techniques to identify which stats objects are being used by the SQL Optimizer. These techniques can help you in your query tuning endeavors. Video resources including presentation, demo files, code snippets and more learning material is available on http://www.dataplatformgeeks.com/ (Join for free and access all the resources) Connect With The Speaker (Amit Bansal) -Follow on Twitter: https://twitter.com/A_Bansal -Follow on FaceBook at http://www.facebook.com/amit.r.bansal -Follow on LinkedIN: http://www.linkedin.com/in/amitbansal2010 -Facebook Page: https://www.facebook.com/AmitRSBansal/ Connect with SQLMaestros: http://sqlmaestros.com/ -http://www.twitter.com/SQLMaestros -https://www.facebook.com/SQLMaestros -Email us: [email protected] Have technical questions? Join the largest SQL group on FB www.facebook.com/groups/theSQLGeeks Our LinkedIn group https://www.linkedin.com/groups/6753546 DataPlatformGeeks (DPG) Community Join the fastest growing community of data & analytics professionals Why Join DPG? http://www.dataplatformgeeks.com/ -Attend all events hosted by DPG, including SQLMaestros Special Events -Get access to free videos, labs, magazines and host of learning resources -Download all events & conference material -Learn new skills. Sharpen existing skills -Be part of Asia’s Largest Data/Analytics Community -Opportunity to be a regional mentor & speaker at our events -Immense technical & professional development Do you know about Data Platform Summit? http://www.DPS10.com
Views: 384 SQLMaestros
Java Performance: Collecting Performance Statistics
 
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http://www.informit.com/store/java-performance-livelessons-video-training-downloadable-9780133443554 This video is a sample excerpt from Java Performance LiveLessons. 4+ Hours of Video Instruction Based on the best-selling book,Java Performance, Java Performance LiveLessons covers the latest Oracle and third-party tools for monitoring and measuring performance on a wide variety of hardware architectures and operating systems. Renowned expert, Charlie Hunt, provides viewers with an overview of a modern Java Virtual Machine, the critical performance statistics to monitor within an operating system, JVM, and Java application, an overview of how the HotSpot garbage collectors work, an explanation of the garbage collection output produced by the garbage collectors, and a step-by-step approach to tuning a Java application. Charlie Hunt is the Performance Engineering Architect at Salesforce.com. He was previously at Oracle, where he was responsible for improving the performance of the HotSpot JVM and Java SE class libraries. He has also been involved in improving the performance of the Oracle GlassFish and Oracle WebLogic servers. A regular JavaOne speaker on Java performance, he is coauthor of Java Performance (Addison-Wesley, 2011) and NetBeans™ IDE Field Guide (Prentice Hall, 2005). Skill Level: Intermediate to Advanced Java programmer/developer Who Should Take This Course?: Beginner to Advanced Java and JVM performance tuning engineer, and Advanced Java user / developer What You Will Learn: The differences between a JRE and the JDK, how to install both, and the major components of the HotSpot Java Virtual Machine What performance statistics to monitor and collect and at each level of the software stack: OS, JVM, and Java application How to tune the JVM's garbage collector How to tune, step-by-step, the HotSpot JVM Course Requirements: Fluent with, or a good understanding of, the Java programming language Basic understanding of a Java Virtual Machine is helpful, but not required The LiveLessons Video Training series publishes hundreds of hands-on, expert-led video tutorials covering a wide selection of technology topics designed to teach you the skills you need to succeed. This professional and personal technology video series features world-leading author instructors published by your trusted technology brands: Addison-Wesley, Cisco Press, IBM Press, Pearson IT Certification, Prentice Hall, Sams, and Que. Topics include: IT Certification, Programming, Web Development, Mobile Development, Home and Office Technologies, Business and Management, and more. View all LiveLessons on InformIT at http://www.informit.com/livelessons
Views: 1538 LiveLessons
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
12c Adaptive Optimization - Kerry Osborne
 
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One of the most interesting new features of the Oracle Database Optimizer is the ability to recognize its own mistakes and use execution statistics to automatically improve execution plans. Oracle calls this "Adaptive Optimization" and this talk will focus on how it works. More webinars at: http://www.red-gate.com/oracle-webinars
Views: 6795 Redgate Videos

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