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Shared Pool Tuning
 
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Shared Pool Tuning watch more videos at https://www.tutorialspoint.com/videotutorials/index.htm Lecture By: Mr. Parth Panjab, Tutorials Point India Private Limited
Can you really flush Oracle SHARED POOL
 
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This video will explain what happens in reality when you issue ALTER SYSTEM FLUSH SHARED_POOL. A step by step case study will give you the answers by the end of this video session. Oracle DBA training: Need some training on Performance tuning? - Whatsapp +919951696808 Look for more contents on training at: www.orskl.com/training
Views: 3013 OrSkl Academy
02 05 Shared Pool
 
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ORACLE
Views: 368 oracle ocm
Understanding and Optimizing Oracle Latches/Mutexes - Webinar
 
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Understanding and Optimizing Oracle Latches/Mutexes. Oracle memory serialization control is core to Oracle database operations. One of the most fascinating topics in Oracle internals and performance optimization is memory serialization. We will look at the circumstances in which serialization is used, how it works, how to influence its operation, and how to diagnose problems. It's a complex situation; in order to get the upper hand on serialization control, this presentation will explore the lock (a little), the latch (a lot), and the mutex (a whole lot). Topics will include: performance diagnosis, how Oracle implements latches and mutexes, and related internal algorithms. Special attention will be given to the library cache mutex operations. This is a practical, yet deep internals presentation filled with amazing discoveries about how Oracle works. For more information go to www.orapub.com
Views: 356 OraPub, Inc.
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: 21224 Oresoft LWC
SCPT 44: Undo Management 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: 21518 Oresoft LWC
Shared Pool
 
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Oracle Database 11g - Deep dive into Shared Pool
Views: 317 suraj verma
04 02 The Shared SQL Area
 
08:18
ORACLE
Views: 101 oracle ocm
02 07 Oracle Architecture Wrap Up
 
01:59
ORACLE
Views: 34 oracle ocm
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: 2812 OraPub, Inc.
Understanding And Resolving Oracle CBC Wait/Latch Contention - Introduction
 
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Understanding And Resolving Oracle CBC Wait/Latch Contention When a server process needs to access a buffer it must access the cache buffer chain (CBC) structure to determine if the buffer is already in the buffer cache. With just the right workload mix, performance can be a problem. Learning about the relevant Oracle internals and how to diagnose and solve CBC performance problems is what this seminar is all about. For more information go to www.orapub.com
Views: 1079 OraPub, Inc.
Oracle Database.  Concepts - Shared Pool
 
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https://www.facebook.com/foalenglowe.rene http://oracle.developpez.com/ https://docs.oracle.com/cd/B19306_01/server.102/b14220/memory.htm https://docs.oracle.com/cd/B28359_01/server.111/b28318/memory.htm https://books.google.fr/books?id=nLnL2QWvA-UC&pg=PT163&lpg=PT163&dq=la+shared+pool+oracle&source=bl&ots=LsbA4LAtb8&sig=oWHwKw88Jw4-zIV11Av2CeWiNRc&hl=en&sa=X&ved=0ahUKEwiHkYfjjLDKAhXGBBoKHZGFDIUQ6AEISTAG#v=onepage&q=la%20shared%20pool%20oracle&f=false
Views: 701 FOALENG LOWE Rene
Funcionamento PARSE - ORACLE
 
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Funcionamento hard parse e soft parse em uma instancia Oracle-- Created using PowToon -- Free sign up at http://www.powtoon.com/join -- Create animated videos and animated presentations for free. PowToon is a free tool that allows you to develop cool animated clips and animated presentations for your website, office meeting, sales pitch, nonprofit fundraiser, product launch, video resume, or anything else you could use an animated explainer video. PowToon's animation templates help you create animated presentations and animated explainer videos from scratch. Anyone can produce awesome animations quickly with PowToon, without the cost or hassle other professional animation services require.
Views: 356 DBA Maker
What are Latches
 
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Latch Overview
Views: 4069 Mike
Oracle database locking issue
 
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Analyzing locks with d.side - Automatic diagnostic for Oracle databases performance and troubleshooting http://www.dside-software.com Copyright (c) d.side software
Views: 264 D.SIDE SOFTWARE
Adaptive Cursor Sharing ACS
 
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SQL Master Training Class Carlos Sierra - Using Oracle's Adaptive Cursor (ACS) feature
Views: 1652 NoCOUG Channel
5. Структуры памяти Oracle
 
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1. SGA 2. PGA 3. Shared Pool: library cache, data dictionary cache 4. Buffer Cache: db_cache_size, db_keep_cache_size, db_recycle_cache_size 5. Redo Log Buffer Cache 6. Large Pool 7. Java Pool Oracle Database, БД Oracle, вебинар Oracle, презентация Oracle, урок Oracle, лекция Oracle, обучение Oracle
SCPT 39: Types of DML Locks
 
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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: 16047 Oresoft LWC
All About Binds
 
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TO USE OR PRINT this presentation click : http://videosliders.com/r/184 ============================================================== All About Binds Thomas Kyte ,It’s All About Binds ,Agenda Performance Is it just about sharing SQL (or is this really a parsing talk in disguise) Scalability Security Do I always want to bind? What is bind variable peeking? Is it good or evil in disguise or a bit of both? I’m binding, but it isn’t sharing – what’s up with that? So the developers don't bind is cursor_sharing = force/similar appropriate system wide? What is the real difference between cursor_sharing = force/similar and which should we use under what circumstances? ,Performance What is involved in all Parses The “conventional” parse - syntax Semantic check What about a hard parse Optimization (can you spell C.P.U…) Row Source Generation And then we can finally execute it Soft Parse is lighter weight But it is called a “shared” pool, not “your” pool Shared data structures have to be protected Optimization can be avoided Row Source Generation can be avoided Bind01.sql ,Performance Wonder if it might affect memory utilization? Strange that count(*) is so low for that first query isn’t it. Unfortunate that sum(sharable_mem) is so high (and remember, it really is 10 times that amount) Bind02.sql ,Scalability But it runs fast enough and I’ll buy more memory Does it really? Run bind03.sql [email protected]> select 11/10000 from dual; 11/10000 ---------- .0011 ,Latch Algorithm Loop for I in 1 .. 1 loop try to get latch if got latch, return if I = 1 then misses=misses+1 end loop INCREMENT WAIT COUNT sleep Add WAIT TIME End loop; ,More multi-user USERS NOBIND_CPU PARSE_MANY_CPU PARSE_ONCE_CPU ------- ---------- -------------- -------------- 1.00 .27 .07 .03 2.00 .72 .21 .09 3.00 1.46 .38 .13 4.00 2.59 .67 .27 5.00 3.20 .85 .34 6.00 4.20 1.01 .40 7.00 4.79 1.20 .51 8.00 5.74 1.44 .53 9.00 6.27 1.60 .64 10.00 7.16 1.76 .72 ,Security Google sql injection Funny thing happened during my last column create or replace procedure set_udump (p_udump in varchar2) as begin execute immediate 'alter system set user_dump_dest = '''||p_udump||''' scope=memory'; end; / ,Security Google sql injection Funny thing happened during my last column create or replace procedure set_udump (p_udump in varchar2) as begin execute immediate 'alter system set user_dump_dest = '''||p_udump||''' scope=memory'; end; / begin set_udump('C:\ORA4\admin\ora4\udump2'' scope=memory utl_file_dir=''*'' scope=spfile user_dump_dest=''C:\ORA4\admin\ora4\udump2'); end; ,Security Google sql injection Funny thing happened during my last column create or replace procedure set_udump (p_udump in varchar2) as begin if ( p_udump NOT LIKE '%=%' ) then execute immediate 'alter system set user_dump_dest = '''||p_udump||''' scope=memory'; else raise_application_error(-20000,'Sorry, but for safety reasons this procedure does not allow "=" in the parameter value'); end if; end; ,Do I always want to bind? Always say “Never say Never” Never say “Always” You do not want to Over Bind Always Bind Why…. ,Do I always want to bind? Over Binding Compulsive disorder to eradicate all literals in SQL Brought on by taking good advice to an illogical extreme Do we need to bind those? Might it be a bad thing to bind those? Begin for x in ( select object_name from user_objects where object_type in ( ‘TABLE’, ‘INDEX’ )) loop … ,Do I always want to bind? Always Binding Data warehouse – no way. When you run queries per second, yes. When you run queries that take seconds, maybe, maybe no. Conside
Views: 64 slide show me
EXEM Customr Case: Phenomenon of excessive generation of pin S wait on X
 
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Check the video and see how EXEM Consultants help our customer quickly identifying problem and solve them.
Views: 60 EXEM TV
Locks   Blocks   Deadlocks
 
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Understanding Locks, Blocks and dead locks in oracle database.
Views: 3933 OrSkl Academy
OracleOpenWorld 2012 : Oracle Real World Performance Session 3
 
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Oracle Real World Performance Session 3
Views: 108 MINSOO JUN
DML Processing in an Oracle Database -  DBArch Video 8
 
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This video explains the steps involved in processing a DML statement in an Oracle Database Server. 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: 58293 Ramkumar Swaminathan
Test: Library Cache Pin during recompile stored procedure
 
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SELECT sys_context('USERENV', 'SID') FROM dual; set lines 130 set pages 1000 SELECT substr(DECODE(o.kglobtyp, 7, 'PROCEDURE', 8, 'FUNCTION', 9, 'PACKAGE', 12, 'TRIGGER', 13, 'CLASS'),1,15) "TYPE", substr(o.kglnaown,1,30) "OWNER", substr(o.kglnaobj,1,30) "NAME", s.indx "SID", s.ksuseser "SERIAL" FROM sys.X$KGLOB o, sys.X$KGLPN p, sys.X$KSUSE s WHERE o.inst_id = USERENV('Instance') AND p.inst_id = USERENV('Instance') AND s.inst_id = USERENV('Instance') AND o.kglhdpmd = 2 AND o.kglobtyp IN (7, 8, 9, 12, 13) AND p.kglpnhdl = o.kglhdadr AND s.addr = p.kglpnses ORDER BY 1, 2, 3 ; http://surachartopun.com/2008/12/recompiled-stored-procedure-library.html
Views: 865 Surachart Opun
What is cursor in Oracle
 
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What is cursor in Oracle
How Oracle RAC Cache Fusion Works Part 3 of 6
 
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Learn How Oracle RAC Cache Fusion Works Really Works. Download Free Scripts at http://skillbuilders.com/How-Oracle-RAC-Cache-Fusion-Works. A continuation of the cache fusion demonstration, with a detailed look at session statistics and the raw trace file contents. You will learn about the "gc" wait events (Global Cache) including 'gc current block 2-way' and 'gc cr multi block request'.
Views: 3165 SkillBuilders
scpt part 9: train sequence
 
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i despise this level... (DX)
Views: 1044 teambrownie1
SCPT 27: Installation Steps For Oracle Database Server
 
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In this video, we will learn how to install Oracle 11g on Amazon EC2. We will go over installation steps in detail. By the end of this video, you should be able to install Oracle Database on an EC2 server. For More detail docs: http://docs.oracle.com/cd/E25054_01/server.1111/e10897/install.htm 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: 22644 Oresoft LWC
Real-World Performance - 13 - Large Dynamic Connection Pools - Part 1
 
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Check out the entire series on the Oracle Learning Library at http://www.oracle.com/goto/oll/rwp In this video, listen and watch Andrew Holdsworth, Vice President of Oracle Database Real-World Performance at Oracle Corporation, as he demonstrates how large dynamic connection pools affect performance. 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.
Groovy and Concurrency with GPars
 
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This session looks at using Groovy for writing multithreaded, concurrent, and parallel programs. It briefly discusses leveraging legacy Java techniques such as multiple processes, multiple threads, the java.util.concurrent APIs, and shared-state atomicity. Then it considers some useful AST transforms in core Groovy (Lazy, Synchronized, Immutable, WithReadLock, and WithWriteLock) before diving headlong into GPars, a comprehensive library for parallel execution that provides a menu of options to the developer. Author: Paul King Paul King leads ASERT, an organization based in Brisbane, Australia which provides software development, training and mentoring services to customers wanting to embrace new technologies, harness best practices and innovate. He has been contributing to open source projects for nearly 20 years and is an active committer on numerous projects including Groovy. Paul speaks at international conferences, publishes in software magazines and journals, and is a co-author of Manning's best-seller: Groovy in Action. He has received numerous awards for his speaking including recognition in the JavaOne Rock Star Wall of Fame. View more trainings by Paul King at https://www.parleys.com/author/paul-king Find more related tutorials at https://www.parleys.com/category/developer-training-tutorials
Views: 984 Oracle Developers
How an intense and diverse SQL statement workload can cause Oracle parsing problems
 
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Make your library cache angry! This video is about how an intense and diverse SQL statement workload can cause Oracle parsing problems. There are many reasons for Oracle parsing related performance issues and many ways to identify them. So, I am narrowing the scope by focusing on one possible cause, that is, an intense and diverse SQL statement workload. I will use Oracle's wait interface to identify the root cause. Sound dry and boring? To make this a little more interesting and a whole lot more fun, I'm going to approach this from a non-traditional, almost backward perspective. After explaining some of the Oracle internals, I'm going to create a parsing intensive workload and then watch what happens... in real time. The educational impact is so powerful, I recorded a video This is video is part of Craig's blog post: http://blog.orapub.com/20170126/how-an-intense-and-diverse-sql-workload-causes-oracle-parsing-problems.html For more information go to www.orapub.com
Views: 287 OraPub, Inc.
04 01 Introduction
 
01:47
ORACLE
Views: 19 oracle ocm
SCPT 24: Oracle Database Server Installation Scenarios
 
11:21
Oracle DB installation Types. 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: 12367 Oresoft LWC
Real-World Performance - 3 - Connection Pools and Hard Parse
 
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Check out the entire series on the Oracle Learning Library at http://www.oracle.com/goto/oll/rwp In this video, listen and watch Andrew Holdsworth, Vice President of Oracle Database Real-World Performance at Oracle Corporation, as he demonstrates how connections and hard parsing contribute to transaction throughput and simulates the mistakes of a poor configuration creating sub-optimal performance. 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.
05 01 What is an Execution Plan
 
04:29
ORACLE
Views: 35 oracle ocm
When Should You Use SQL Bind Variables? Always!
 
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When is the right time to use Bind Variables in your SQL statements? "Pretty much all the time," says Mark Williams. Mark, a Method R evangelist with Cintra Software and Services, explains it all in this 2 Minute Tech Tip recorded at ODTUG Kscope 2018 at Walt Disney World in Orlando, Florida. https://developer.oracle.com/ https://cloud.oracle.com/en_US/tryit
Views: 532 Oracle Developers
Real-World Performance - 12 - Getting In Control
 
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Check out the entire series on the Oracle Learning Library at http://www.oracle.com/goto/oll/rwp In this video, listen and watch Andrew Holdsworth, Vice President of Oracle Database Real-World Performance at Oracle Corporation, as he highlights how getting control of your database affects performance. 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.
Real-World Performance - 14 - Large Dynamic Connection Pools - Part 2
 
07:07
Check out the entire series on the Oracle Learning Library at http://www.oracle.com/goto/oll/rwp In this video, listen and watch Andrew Holdsworth, Vice President of Oracle Database Real-World Performance at Oracle Corporation, as he explains how large dynamic connection pools affect performance. 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.
Real-World Performance - 16 - Classic Real World Performance
 
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Check out the entire series on the Oracle Learning Library at http://www.oracle.com/goto/oll/rwp In this video, listen and watch Andrew Holdsworth, Vice President of Oracle Database Real-World Performance at Oracle Corporation, as he explains what classic Real-World Performance is. 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.
CPU Utilization and Controlling Costs: An Interview with John Barnard, BMC Software
 
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John Barnard, BMC's CTO, talks with Bob Thomas about how companies are maximizing workload throughput thereby improving service while reducing costs.
Views: 207 MainframeZoneVideos
Best Practices: Tackling Common Problems in DB2 for z/OS
 
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DataKinetics Webinar Series: Best Practices - Tackling Common Problems in DB2 for z/OS Hosted by Leah Manzoor and Craig Mullins
Views: 386 DataKinetics
Orange for Oracle 6.0 Guide Chapter. 17 - Lock Monitor를 통한 실시간 세션 정보 파악하기
 
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Lock Monitor 는 세션 별로 발생한 Lock, Lock Tree 정보를 제공하며 그 세션에 대한 상세 정보를 실시간으로 제공하여 Lock의 원인을 파악하고 해결하도록 도와 줍니다.
Views: 325 WareValley
03 06 Demo   Blocking Connections
 
04:36
ORACLE
Views: 12 oracle ocm