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SCPT 14: Oracle Block Buffer Cache
 
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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: 31440 Oresoft LWC
Full DB In-Memory Caching
 
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This is the first of two demonstrations about In-Memory caching new features, introduced in Oracle Database 12.1.0.2. This one illustrates the Full Database In-memory Caching feature enabling an entire database to be cached in memory when the database size is smaller than the buffer cache size. Caching and running a database from memory leads to huge performance benefits. Copyright © 2014 Oracle and/or its affiliates. Oracle® is a registered trademark of Oracle and/or its affiliates. All rights reserved. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the "Materials"). The Materials are provided "as is" without any warranty of any kind, either express or implied, including without limitation warranties of merchantability, fitness for a particular purpose, and non-infringement.
Oracle Architecture
 
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This video describes the best architecture of the oracle after trying more than times to Oracle structure I decided to produce an animated video let's start first with the database structure on the left side you have the client here on the right side you have to serve a two-year the server side is divided in three main structures to memory the logical structure and the physical structure so let's use SQL Plus application to provide you every step up a transaction will be using Scott sample schema it is important to note that the whole string is an alias and not a database name district will be compared to this alias inside of a file called pianist named doc or this file is similar to a DNS and with up pain all the necessary detail to reach a database server locally a user process will be allocated and will validate the connection through a listener the listener will be in charge to allocate a server process the user processes da link to the server process let's now execute our first transaction for this example we will execute an update first to state that will be validated we call this step the parsing this server process sense back to confirmation of the parsing that statement with be written into their share pool and the redo log buffer an execution plan will also be created it to the fair share Paul that database book they choose fought the transaction will be read and copy into the database buffer cache only that feel implicated in that transaction will be held it to a - segment till the transaction is completed we call those copies the before image a copy of this block will be duplicated with the updated feel this copy is called me after image a confirmation will be sent to to use a process the commit statement will complete the transaction and will be written into to redo log buffer to commit statement triggers the log writer process and we'll send all statement for the current transaction into the redo log file the before image into undo segment could be then deleted went that threshold up to undo retention parameters reach alaskan from Asian will be sent to the user process went to current law kiss Paul it generates a switch lock triggering at the same time the archiver process and to log sequence number the archiver will generate and archive the file with the content of the current loc a switch up with them trigger a checkpoint process that will incriminate the checkpoint number by applying this last number into each data file header the checkpoint process with finally trigger the database writer process enright the last image from that database buffer cache into thirty people
Views: 21051 Ezylearning
Oracle Coherence: Explaining the 3 Cache Types
 
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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.
قواعد البيانات 2  (database buffer cache (Oracle DBA 11g Tutorial
 
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database buffer cache in oracle 11g - Memory Structures - Overview of the System Global Area
Views: 812 Ahmed Ybat
Oracle Indexes - Beginner
 
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Oracle Indexes - Beginner
Views: 66539 Chris Ostrowski
Instance Recovery in an Oracle Database - DBArch Video 10
 
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This video explains how Instance recovery happens in an Oracle Database. 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: 16740 Ramkumar Swaminathan
Database Tutorial 72 - SGA Database Buffer Part 1  - Oracle DBA Tutorial
 
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Database Tutorial 72 - SGA Database Buffer Part 1 - Oracle DBA Tutorial
Views: 6076 Sam Dhanasekaran
Oracle Database architecture part 5 SGA- Buffer cache and others
 
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Oracle Database architecture part 5 SGA- Buffer cache and others
Views: 499 khaled alkhudari
Oracle Database In-Memory Performance Demo
 
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Demonstration of Oracle Database In-Memory from Oracle's Real World Performance Team.
Oracle Database Tutorial 63 : Introduction to Tablespace In Oracle Database
 
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Introduction to tablespace in oracle database consist Brief intro of tablepsace, type of tablespace, Big and small file tablespace, intro of Data files in oracle By manish sharma RebellionRider ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog : http://bit.ly/tablespace-introduction-rebellionrider Previous Tutorial ► Indexes https://youtu.be/F5NrQYD4a9g ------------------------------------------------------------------------- ►►►Help Me In Getting A Job◄◄◄ ►Help Me In Getting A Good Job By Connecting With Me on My LinkedIn and Endorsing My Skills. All My Contact Info is Down Below. You Can Also Refer Me To Your Company Thanks ------------------------------------------------------------------------- Copy Cloud referral link || Use this link to join copy cloud and get 20GB of free storage https://copy.com?r=kb4rc1 -------------------------------------------------------------------------- ►Make sure you SUBSCRIBE and be the 1st one to see my videos! -------------------------------------------------------------------------- Amazon Wishlist: http://bit.ly/wishlist-amazon ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ►►►Find me on Social Media◄◄◄ Follow What I am up to as it happens on https://twitter.com/rebellionrider https://www.facebook.com/imthebhardwaj http://instagram.com/rebellionrider https://plus.google.com/+Rebellionrider http://in.linkedin.com/in/mannbhardwaj/ http://rebellionrider.tumblr.com/ http://www.pinterest.com/rebellionrider/ You can also Email me at for E-mail address please check About section Please please LIKE and SHARE my videos it makes me happy. Thanks for liking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com ♥ I LOVE ALL MY VIEWERS AND SUBSCRIBERS
Views: 36628 Manish Sharma
La Database Buffer  Cache de la base de données Oracle
 
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http://docs.oracle.com/cd/E25178_01/server.1111/e25789/memory.htm http://docs.oracle.com/cd/E25178_01/server.1111/e25789/memory.htm http://blog.gerwinhendriksen.com/?p=78 http://itsiti.com/oracle-sga-memory-data-structure http://guyharrison.squarespace.com/ssdguide/03-the-oracle-database-flash-cache.html http://oraclegurukul.blogspot.fr/2012/07/db-buffer-cache.html https://www.toadworld.com/platforms/oracle/w/wiki/551.buffer-cache-overview https://mwidlake.wordpress.com/2011/08/08/iot-part-4-greatly-boosting-buffer-cache-efficiency/ https://www.facebook.com/foalenglowe.rene
Views: 33 FOALENG LOWE Rene
Lecture 14: Oracle Block Buffer Cache || ORACLE DATABASE SERVER CONCEPT
 
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What is Oracle Oracle database is a relational database management system. It is known as Oracle database, OracleDB or simply Oracle. It is produced and marketed by Oracle Corporation. Oracle database is the first database designed for enterprise grid computing. The enterprise grid computing provides the most flexible and cost effective way to manage information and applications. Different editions of Oracle database Following are the four editions of the Oracle database. Enterprise Edition: It is the most robust and secure edition. It offers all features, including superior performance and security. Standard Edition: It provides the base functionality for users that do not require Enterprise Edition's robust package. Express Edition (XE): It is the lightweight, free and limited Windows and Linux edition. Oracle Lite: It is designed for mobile devices. The Oracle Corporation Oracle Corporation is the largest software company in the field of database business. Its relational database was the first to support SQL which has since become the industry standard. Oracle database is one of the most trusted and widely used relational database engines. The biggest rival of Oracle database is Microsoft's SQL Server. History of Oracle Oracle was originally developed by Lawrence Ellison (Larry Ellision) and his two friends and former co-worker in 1977. Oracle DB runs on the most major platforms like Windows, UNIX, Linux and Mac OS.
Views: 6 TECHNICAL WORLD
Oracle 12c Performance Essentials exam - Force Full DB Caching
 
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Oracle 12c Performance Essentials exam - Force Full DB Caching, from ExamREVIEW
Lecture 13: Oracle Redo Buffer Cache|| ORACLE DATABASE SERVER CONCEPT
 
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What is Oracle Oracle database is a relational database management system. It is known as Oracle database, OracleDB or simply Oracle. It is produced and marketed by Oracle Corporation. Oracle database is the first database designed for enterprise grid computing. The enterprise grid computing provides the most flexible and cost effective way to manage information and applications. Different editions of Oracle database Following are the four editions of the Oracle database. Enterprise Edition: It is the most robust and secure edition. It offers all features, including superior performance and security. Standard Edition: It provides the base functionality for users that do not require Enterprise Edition's robust package. Express Edition (XE): It is the lightweight, free and limited Windows and Linux edition. Oracle Lite: It is designed for mobile devices. The Oracle Corporation Oracle Corporation is the largest software company in the field of database business. Its relational database was the first to support SQL which has since become the industry standard. Oracle database is one of the most trusted and widely used relational database engines. The biggest rival of Oracle database is Microsoft's SQL Server. History of Oracle Oracle was originally developed by Lawrence Ellison (Larry Ellision) and his two friends and former co-worker in 1977. Oracle DB runs on the most major platforms like Windows, UNIX, Linux and Mac OS.
Views: 5 TECHNICAL WORLD
Oracle Database + TimesTen (In-Memory Database)
 
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This short video shows the benefits of running PL/SQL with In-Memory Database Cache (IMDB Cache) for the Oracle Database. It demonstrates using TimesTen as an in-memory database cache to enhance the performance. Softwares: Oracle 11gR2 Oracle In-Memory Database Cache 11gR2 SQL Developer 3.0 Oracle Enterprise Manager (OEM) 11g
Oracle: How To Optimize Performance When The Top Event Is DB CPU  - Webinar
 
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In this webinar Oracle Ace, Craig Shallahamer, will demonstrate how to do an Oracle time based analysis including integrating the OS situation into our analysis and finding the true “top” SQL. This journey includes a trip into Oracle’s library cache, memory access control and some interesting ways to improve SQL statement performance. Overall performance sucks as far as the users are concerned. After months of meetings management finally wants you to get involved. You run an AWR report for one of the most intense hours and notice the top “event” is "DB CPU" followed by "cursor: pin S wait on X”. This is where the webinar begins!
Views: 599 OraPub, Inc.
How to Cache Database Queries with Redis in Laravel - Redis Series Episode 4
 
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In this short episode, I show you how you can cache database queries for a certain period of time. This is really nice when you have data you know won't change during x period of time, because once it's in cache, Laravel knows to automatically skip the database query and immediately deliver the requested content from RAM. Super fast, super easy. Here's the complete project throughout all episodes: https://gitlab.com/Christf24/RedisCast/tree/master/ Next episode will go over tagging with Redis (for blog posts, movie genres, or whatever else). Previous episode (Counting page views, and creating a "Top Viewed Article" list on home page): https://www.youtube.com/watch?v=ZMjw5WFPG8c Next episode (Tagging articles, products, movies, etc..): http://youtu.be/L2keoHFThwY
Views: 23997 Christophe Limpalair
Clustered Indexes and DB Caching
 
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Second in the series of "Indexes on Index Cards", this video covers clustered index read operations and how the cache works on these operations in a relational database. Various queries and cache situations are covered, pointing out the logical and physical for each query and situation.
Views: 1637 Database by Doug
02 04 Buffer Cache
 
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ORACLE
Views: 378 oracle ocm
SCPT 14 : Oracle Block Buffer Cache
 
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Buffer cache provides you with in-depth training on IT taught as part of the Oracle 11g and 12c Database Administration Fundamentals.
The Oracle Buffer Cache
 
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Learn the basics of the Oracle Buffer Cache.
Views: 204 Oracle to Lego
Oracle DB 12c - Startup & Shutdown of CDB & PDB
 
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Oracle DB 12c - Startup & Shutdown of CDB & PDB Watch more videos at https://www.tutorialspoint.com/videotutorials/index.htm Lecture By: Mr. Parth Panjabi, Tutorials Point India Private Limited
SCPT 41: Types of Locks and Latches in Oracle
 
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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: 21198 Oresoft LWC
Troubleshooting a Complex Oracle Performance Issue
 
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In this session Tanel will walk you through troubleshooting a yet another complex performance issue that he has faced in past. Again, the initial symptoms point to a different direction than the actual root cause, so a systematic approach was needed.
Views: 3862 Tanel Poder
Redo Logs in an Oracle Database - DBArch Video 11
 
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This video explains the concepts of Redo Log Groups and Files in an Oracle Database. You will understand how Oracle Instance uses Redo Buffers and Logwriter to keep the redo in Redo Logs. 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: 20152 Ramkumar Swaminathan
Oracle Database 12c demos: In-Memory Column Store Architecture Overview
 
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The demonstration provides an overview of the architecture of the In-Memory Column Store feature introduced in Oracle Database 12c Release 1 patchset 1.
Performance Tuning of SGA using AMM in oracle 11gR2
 
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Hello friends in my today scenario i briefly explain how to manage and tune automatically SGA AND PGA via Automatic memory management feature that is release in 11gR2. #PerformanceTuning #SGA #AMM
Views: 7173 Oracle World
Oracle Database Memory Serialization Control (latches & mutexes)
 
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Oracle Database Memory Serialization Control (latches & mutexes) teaches Oracle DBAs the ends and outs about Oracle memory structure control. Oracle effectively creates the illusion of simultaneous memory structure manipulation. And it's our job to ensure this illusion remains a mystery to our users. To help you keep this illusion real, in this seminar I will lead you into the mysterious world of Oracle memory structure serialization control by exploring latches and mutexes: what they are, how they work, how we monitor their performance, how we tell if there is a significant problem and how we systematically diagnose the situation. I think you will soon understand why I think Oracle serialization control rocks! For details go to http://www.orapub.com/video-seminar-serialization-control PART ONE of this seminar focuses on why latches and mutexes are so important to Oracle's operations and how Oracle uses latches and mutexes in its kernel code. I also dig into how Oracle's time model relates to latching. This enables you to properly diagnosis and communicate to others why or why not latches/mutexes are a significant performance issue. Finally, I get into how Oracle increases concurrency by effectively using multiple latches of the same type to increase memory structure concurrency. It's fascinating and very important for DBAs who want to pursue a career focused on Oracle performance tuning. PART TWO begins by focusing on advanced latch spin control and detailing three ways to identify the problem latch. Then I'll begin digging deep into mutexes, including why they are important, why Oracle began using them and the acquisition algorithm. I'll even get into advanced mutex control using Oracle instance parameters. We will observe Oracle using mutexes by operating system tracing Oracle processes. It's pretty cool and key for any DBA who wants to become a performance expert. What You Will Learn In Part 1 & 2 - Why Oracle processes must ensure serial access control to Oracle memory structures - What are Oracle latches and mutexes - How Oracle latches are different from mutexes - The latch and mutex acquisition algorithms - How L&M activity relates to Oracle's time model - How to monitor for real L&M problems using Oracle's time model and an AWR report - Steps to methodically approach diagnosing and coming up with performance solutions - The differences between latches and mutexes - How Oracle implement mutexes in its library cache - How to use advanced latch spin control - What options DBAs have to influence mutex behavior L&M = Latches And Mutexes Modules Part 1: 060 Oracle Serialization Control - Part 1 1. Why the simultaneous memory structure illusion must exist and why it works so well 2 Oracle processes, L&M and memory structures, the general L&M acquisition algorithm 3 L&M time accounting and how this relates to the Oracle time model and the AWR report 4. Oracle latch specifics: concurrency limitations, child latches, multiple latches and how latches "back off." Part 2: 062 Oracle Serializatoin Control - Part 2 1. Using latch specific spin count control to your advantage and three ways to identify the problem latch 2. Why mutexes are advantageous to increase concurrency 3. Detailing the Oracle mutex algorithm 4. Advanced mutex control and observering Oracle mutex usage in detail For more information to go www.orapub.com
Views: 2809 OraPub, Inc.
What is? - Advanced Compression in Oracle Database 12c
 
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Join Kevin Jernigan, as he talks about Advanced Compression in Oracle Database 12c. How it optimizes and makes I/O reads more efficient and increases throughput. ================================= For more information, see http://www.oracle.com/goto/oll 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.
Oracle DB - Startup & Shutdown
 
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Oracle DB - Startup & Shutdown Watch More Videos at: https://www.tutorialspoint.com/videotutorials/index.htm Lecture By: Mr. Parth Panjabi, Tutorials Point India Private Limited
How to find block sizes of all Oracle Database files
 
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Block size of control files and redo log files are not same as default block size of your oracle database. Understand the level of control we got to alter these block sizes from one of my real time activity. Many more interesting blogs at : www.orskl.com/blog Looking for Oracle DBA training: www.orskl.com/training WhatsApp: +919951696808
Views: 3341 OrSkl Academy
Automatic Big Table Caching
 
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This is the second of two demonstrations about In-Memory caching new features, introduced in Oracle Database 12.1.0.2. This one illustrates the Automatic Big Table caching feature enhancing the in-memory parallel query capabilities of the Oracle Database in both single instance and Oracle RAC environments. An optional section of the buffer cache, called the big table cache, is used to store data for serial and parallel table scans. Copyright © 2014 Oracle and/or its affiliates. Oracle® is a registered trademark of Oracle and/or its affiliates. All rights reserved. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the "Materials"). The Materials are provided "as is" without any warranty of any kind, either express or implied, including without limitation warranties of merchantability, fitness for a particular purpose, and non-infringement.
Deep Dive sessions from Oracle Guru "Arup" on DB Security , Indexes and Buffer cache in Cloud
 
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#sangam18 #aioug #oracle Sangam18 At A Glance Sangam, the largest independent Oracle user’s group conference will feature over 150+ in-depth technical sessions presented by expert speakers from inside and outside of Oracle. Over 1000+ database administrators, developers and architects professionals are expected at the conference from December 7th-8th 2018 at The Oterra, Bengaluru. This is our moment of glory and time for you to join us ! Arup Nanda has been an Oracle DBA for over 20 years with experience spanning all aspects from Modeling to performance tuning and Exadata. He speaks frequently, has authored about 300 articles, co-authored 5 books, blogs at arup.blogspot.com and mentors new and seasoned DBAs. Sessions Database Security in a Single Day in the Cloud This session attendees will learn some simple but highly effective steps they can implement in just one day that will eliminate a lot of vulnerability and make the database secure against 90% of the common attacks. Should I Drop Indexes in Exadata Cloud In this session you will learn what storage indexes are in Exadata, how they work (and don’t), how they work along with traditional indexes, how to gradually evaluate the effect of indexes instead of a sudden change, how to compensate for lack of indexes and read execution plans. In this session you will learn how the blocks get into the buffer cache, what buffer cache chains are, how they are managed, how cache buffer chain latches are used and when they cause significant performance issue, how DBWR and checkpoint processes work, what causes the buffers to be written back to the disk, the role of commits and rollbacks in buffer movement between buffer cache and disks and much more.
Views: 198 AI OUG
Will huge Consistent Reads floods BUFFER CACHE?
 
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Video Blog on Oracle Real Time Activity regarding CACHE chains in BUFFER CACHE on Consistent Read operations. Looking for Oracle DBA training? WhatsApp/Contact: +919951696808 More training options at www.orskl.com/training
Views: 2105 OrSkl Academy
Rev up your Oracle Functions using Result Cache
 
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Dan shows you how to dramatically increase function response time using a newer Oracle memory structure called Result Cache. Still on Oracle10? Dan has a solution for you as well.
Views: 124 Dan Hotka
Oracle Database 12c demos: In-Memory Column Store Queries
 
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The demonstration illustrates how queries on in-memory objects and columns data populated within the IM column store execute. The demo also shows how fast the queries execute against the In-Memory column store compared to the buffer cache.
Webinar: All About the Function Result Cache
 
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Presented by Steven Feuerstein, Oracle Corporation The function result cache, added in Oracle Database 11g, offers developers a way to dramatically reduce the amount of time it takes to retrieve data requested repeatedly by database sessions (specifically, when the same rows of a table are fetched much more frequently than they are changed). This cache is stored in the SGA, shared across all sessions in the instance, and automatically purged of "dirty data" by the Oracle Database. Every application running on 11.1 or higher should be taking advantage of this feature. Best of all, there is minimal impact on your code to start using this feature.
Views: 1083 ODTUG
Oracle Database 18c Express Edition Installation on Windows 10 | Oracle Database 18c XE
 
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After long time, Oracle has released finally Oracle Database 18c Express Edition for Windows x64, Oracle Database Express Edition (XE) Release 18.4.0.0.0 In this video we are going to demonstrate how to install Oracle Database 18c Express Edition on Windows 10 Oracle Database 18c Express Edition installation in Windows is very easy. This video guides step by step installation. We are going to learn 1. Database Installation 2. Enterprise Manager Overview 3. SQL Plus tool 4. Oracle Instance Manager to start and shutdown database instance. Hardware Requirements : Minimum 2 GB RAM, 2 CPU Cores and Enough Hard disk Space. Software Requirements : OracleXE184_Win64 Zip file for Windows already downloaded from Oracle website. Important Note: Adobe Flash player must be installed in order to browse Enterpise Manager Console on Internet Explorer. Installation method : Offline, Oracle Database 18c Zip file for Windows downloaded and installed. download link: https://www.oracle.com/technetwork/database/database-technologies/express-edition/downloads/index-083047.html Oracle Database 18c XE Features ############################### Oracle Multitenant SQLJ Microsoft Distributed Transaction Coordinator support Native .NET Data Provider—ODP.NET .NET Stored Procedures Online index rebuild Online table organization Online table redefinition Trial recovery Fast-start fault recovery Flashback Table Flashback Database Cross-platform Backup and Recovery Sharded Queues Network Compression Client Side Query Cache Query Results Cache PL/SQL Function Result Cache Adaptive Execution Plans In-Memory Column Store In-Memory Aggregation Attribute Clustering Column-Level Encryption Tablespace Encryption Oracle Advanced Security Oracle Database Vault Oracle Label Security Centrally Managed Users Fine-grained auditing Privilege Analysis Real Application Security Redaction Transparent Sensitive Data Protection Virtual Private Database Oracle Spatial and Graph Property Graph and RDF Graph Technologies (RDF/OWL) Partitioned spatial indexes Oracle Partitioning Oracle Advanced Analytics Oracle Advanced Compression Advanced Index Compression Prefix Compression (also called Key Compression) Basic Table Compression Deferred Segment Creation Bitmapped index, bitmapped join index, and bitmap plan conversions Transportable tablespaces, including cross-platform and full transportable export and import Summary management—Materialized View Query Rewrite.
Views: 2000 java frm
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: 8458 TechLake
Oracle DB - User Management
 
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Oracle DB - User Management Watch More Videos at: https://www.tutorialspoint.com/videotutorials/index.htm Lecture By: Mr. Parth Panjabi, Tutorials Point India Private Limited
Oracle Database 12c OLTP Compression
 
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This short video uses swingbench to demonstrate that its possible to make excellent space savings of both the space needed to store rows and the associated indexes without compromising transaction performance. You can find out more information on Oracle Database compression in this white paper http://www.oracle.com/technetwork/database/options/compression/advanced-compression-wp-12c-1896128.pdf You can download the software used in this demonstration here http://www.dominicgiles.com/swingbench.html
Views: 658 Dominic Giles
Managing Oracle Database In-Memory
 
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In this second of three presentations, Maria Colgan explains how to control which objects get populated into the column store and how to monitor the performance of queries against the column store.
Database Tutorial  69 - SGA System Global Area of an Oracle Database - Oracle DBA Tutorial
 
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Database Tutorial 69 - SGA System Global Area of an Oracle Database - Oracle DBA Tutorial SGA - System Global Area
Views: 12985 Sam Dhanasekaran
22 Buffer Cache - 1
 
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For More Video lectures from IIT Professors .......visit www.satishkashyap.com Video lectures and Lecture Notes on "Operating Systems" by Prof. P.K. Biswas sir, IITKGP 1 introduction to operating system 2 process management 1 3 process management 2 4 concurrent management 1 5 concurrent management 2 6 concurrent management 3 7 critical section problem 1 8 critical section problem 2 9 critical section problem 3 10 deadlock 1 11 deadlock 2 12 deadlock 3 13 deadlock 4 14 deadlock 5 15 memory mangement 1 16 memory mangement 2 17 memory mangement 3 18 memory mangement 4 19 cache memory 1 20 cache memory 2 21 secondary storage 22 buffer cache 1 23 buffer cache 2 24 file represenation 1 25 file represenation 2 26 file represenation 3 27 file system architecture 1 28 file system architecture 2 29 file system architecture 3 30 introduction to distributed file system 31 conclusion Introduction and history of Operating systems, structure and operations; processes and files Processor management: inter process communication, mutual exclusion, semaphores, wait and signal procedures, process scheduling and algorithms, critical sections, threads, multi threading Memory management: contiguous memory allocation, virtual memory, paging, page table structure, demand paging, page replacement policies, thrashing, segmentation, case study Deadlock: Shared resources, resource allocation and scheduling, resource graph models, deadlock detection, deadlock avoidance, deadlock prevention algorithms Device management: devices and their characteristics, device drivers, device handling, disk scheduling algorithms and policies File management: file concept, types and structures, directory structure, cases studies, access methods and matrices, file security, user authentication UNIX and Linux operating systems as case studies Time OS and case studies of Mobile OS
Views: 38847 kashyap B
How Oracle SQL Query Process
 
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For complete professional training visit at: http://www.bisptrainings.com/course/Oracle-Fundamentals-and-PL-SQL-for-beginners Follow us on Facebook: https://www.facebook.com/bisptrainings/ Follow us on Twitter: https://twitter.com/bisptrainings Email: [email protected] Call us: +91 975-275-3753 or +1 386-279-6856
Views: 23185 Amit Sharma
Oracle Database architecture part 4:SGA- Shared pool
 
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Oracle Database architecture part 4 SGA- Shared pool لازم تحضر هذا الفيديو...معلومات رائعة جدا
Views: 566 khaled alkhudari
What are Data Blocks - DBArch Video 28
 
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In this video you will learn about an Oracle Database block, what are the possible sizes and how it impacts the tables. Also you will learn about setting up multiple block sizes and how to configure the Buffer Cache for a database with multiple block sizes . 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: 3742 Ramkumar Swaminathan
Buffer Busy Waits - Oracle
 
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Oracle buffer Busy wait explained
Views: 32588 Ritesh Raj Singh
How Oracle database does instance recovery after failures
 
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A real time activity to demonstrate how Oracle database performs automatic instance recovery after a failure. This video blog will take a real example to prove the concepts in reality. Need DBA training? Whatsapp : +919951696808 More blogs at https://www.orskl.com
Views: 2087 OrSkl Academy