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SCPT 36:What is Locking
 
12:34
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: 29653 Oresoft LWC
How to identify and resolve database locks in Spotlight on Oracle
 
03:40
This video shows how to identify and resolve database locks in Spotlight on Oracle. https://www.quest.com/Spotlight-on-Oracle
Views: 4594 DellTechCenter
Oracle Database Lock Mode
 
08:01
Tipe – tipe lock yang terdapat di oracle database
Views: 155 Muhammad Umar
Concurrency Control - Lock Based Protocol in DBMS Transaction Management
 
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DBMS Tutorial in English, Hindi - Concurrency Control - Lock Based Protocol in DBMS Transaction Management for students of IP University Delhi and Other Universities, Engineering, MCA, BCA, B.Sc, M.Sc Colleges.
Views: 162073 Easy Engineering Classes
Optimistic vs Pessimistic Locking
 
03:49
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Oracle DBA - Blocks
 
09:22
http://oracledbazerotopro.com This tutorial explains Operating System Blocks and Database Blocks.
Views: 34519 HandsonERP
Oracle username and password and Account unlocking
 
08:37
all education purpose videos
Views: 264828 Chandra Shekhar Reddy
LOCKING DATABASE (ORACLE)
 
08:33
Demo Locking Tugas Sistem Manajemen Basisdata Desy Fajar Rahayu 13523087 Mia Puspa Pertiwi 13523096 Annisa Dian Pertiwi 13523105 Ardisa Benita Yolanda 13523190
Views: 66 Ardisa Benita
Conflict Lock
 
03:13
A selection from Bob Mayer's day long Writing Presentation. On line classes, CDs and MP3s available at http://whodareswinspublishing.com/WIF_Workshops.html
Views: 4256 Bob Mayer
Oracle database locking issue
 
03:17
Analyzing locks with d.side - Automatic diagnostic for Oracle databases performance and troubleshooting http://www.dside-software.com Copyright (c) d.side software
Views: 252 D.SIDE SOFTWARE
Isolation Levels in Database Management Systems
 
10:20
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Views: 26745 Techtud
SQL Server Exploring Locks
 
05:43
4. Exploring Locks
Views: 16612 Eagle
Locks, Blocks, and Two Smoking Deadlocks
 
41:46
We will find out how locking works in SQL server, why blocking occurs, how to identify and to prevent different types of deadlocks. Concurrency models, isolation levels and read phenomena are also worth mentioning. ---------------------------------------------------------------- My presentation https://mega.nz/#!TUpE1YyS!iBY6CWjL2ghZsopNTOFxL_oUWt5iXtqeCicVA6sHtiU ---------------------------------------------------------------- EPAM IT WEEK 2016
Views: 288 Eugene Berko
Real-World Performance - 15 - Index Contention
 
19:46
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 index contention 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.
Deadlock - Oracle
 
02:04
Demo Deadlock Tugas Sistem Manajemen Basisdata Kelompok 4: - Arieska Nur W/14523169 - Denny Ardiansyah/14523182 - Muhammad Revaldy Putrayana/14523196 - Logistyo Yulistianto/14523202 Slideshare Demo: https://www.slideshare.net/LogistyoYulistianto/demo-lock-mechanism-dan-deadlock Presentasi: https://www.slideshare.net/LogistyoYulistianto/slide-presentasi-lock-mechanism-dan-dedadlock
Simplified DBA-019-Data Concurrency and Locks
 
03:56
DATA CONCURRENCY More than one user connections ( session ) can access same data. For example user1 and user2 can view same employee information at the same time. But not two users can modify same data in one time. This is maintained by oracle lock mechanism. Before the database allows a session to modify data, the session must first lock the data that is being modified. A lock gives the session exclusive control over the data so that no other transaction can modify the locked data until the lock is released. Transactions can lock individual rows of data, multiple rows, or even entire tables. Oracle Database supports both manual and automatic locking. Automatically acquired locks always choose the lowest possible level of locking to minimize potential conflicts with other transactions. Demo: User1 is modifying an employee. User1 session will acquire a lock on the row. Same time user2 is trying to modify same employee. Since User1 has acquired lock, user2 has to wait until user1 releases the lock. Manual locking is possible. A user can place a lock manually as follows: LOCK TABLE mytable1 IN EXCLUSIVE MODE; With the preceding statement, any other transaction that tries to update a row in the locked table must wait until the transaction that issued the lock request completes. EXCLUSIVE is the strictest lock mode. The following are the other lock modes: ROW SHARE: Permits concurrent access to the locked table but prohibits sessions from locking the entire table for exclusive access ROW EXCLUSIVE: Is the same as ROW SHARE, but also prohibits locking in SHARE mode. The ROW EXCLUSIVE locks are automatically obtained when updating, inserting, or deleting data. ROW EXCLUSIVE locks allow multiple readers and one writer. SHARE: Permits concurrent queries but prohibits updates to the locked table. A SHARE lock is required (and automatically requested) to create an index on a table. However, online index creation requires a ROW SHARE lock that is used when building the index.
Identifying & Locking default (service) accounts in Oracle
 
01:37
Oracle default installation comes up with several database accounts that're opened and have escalated privileges. Oracle database installs with a number of default database user accounts. Upon successful installation of the database, the Database Configuration Assistant automatically locks and expires most default database user accounts. If you perform a manual (without using Database Configuration Assistant) installation of Oracle Database, then no default database users are locked upon successful installation of the database server. Or, if you have upgraded from a previous release of Oracle Database, you might have default accounts from earlier releases. Left open in their default states, these user accounts can be exploited, to gain unauthorized access to data or disrupt database operations. You should lock and expire all default database user accounts. Oracle Database provides SQL statements to perform these operations.
Views: 638 checklist20
Oracle 11g Lock Monitoring with Read Committed Transaction Isolation Level Brief Explanation
 
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Oracle 11g memiliki 2 jenis transaction isolation level yaitu Read Committed dan Serializable. Secara default transaction isolation pada Oracle adalah Read Committed, yaitu ketika sebuah session melakukan Insert/Update/Delete pada sebuah data dilanjutkan dengan commit maka session lain akan secara otomatis membaca data yang sama. Terdapat Row Level Lock (TX) dan Table Level Lock (TM). Video ini memberikan contoh jelas tentang transaksi yang terjadi ketika proses locking terjadi.
Views: 162 Boby Siswanto
sql server concurrent transactions
 
07:34
Text version of the video http://csharp-video-tutorials.blogspot.com/2015/08/sql-server-concurrent-transactions.html Slides http://csharp-video-tutorials.blogspot.com/2015/08/sql-server-concurrent-transactions_14.html All SQL Server Text Articles http://csharp-video-tutorials.blogspot.com/p/free-sql-server-video-tutorials-for.html All SQL Server Slides http://csharp-video-tutorials.blogspot.com/p/sql-server.html All Dot Net and SQL Server Tutorials in English https://www.youtube.com/user/kudvenkat/playlists?view=1&sort=dd All Dot Net and SQL Server Tutorials in Arabic https://www.youtube.com/c/KudvenkatArabic/playlists In this video we will discuss 1. What a transaction is 2. The problems that might arise when tarnsactions are run concurrently 3. The different transaction isolation levels provided by SQL Server to address concurrency side effects First let us understand what is a transaction A transaction is a group of commands that change the data stored in a database. A transaction, is treated as a single unit of work. A transaction ensures that, either all of the commands succeed, or none of them. If one of the commands in the transaction fails, all of the commands fail, and any data that was modified in the database is rolled back. In this way, transactions maintain the integrity of data in a database. Example : The following transaction ensures that both the UPDATE statements succeed or both of them fail if there is a problem with one UPDATE statement. -- Transfer $100 from Mark to Mary Account BEGIN TRY BEGIN TRANSACTION UPDATE Accounts SET Balance = Balance - 100 WHERE Id = 1 UPDATE Accounts SET Balance = Balance + 100 WHERE Id = 2 COMMIT TRANSACTION PRINT 'Transaction Committed' END TRY BEGIN CATCH ROLLBACK TRANSACTION PRINT 'Transaction Rolled back' END CATCH Databases are powerful systems and are potentially used by many users or applications at the same time. Allowing concurrent transactions is essential for performance but may introduce concurrency issues when two or more transactions are working with the same data at the same time. Some of the common concurrency problems Dirty Reads Lost Updates Nonrepeatable Reads Phantom Reads We will discuss what these problems are in detail with examples in our upcomning videos One way to solve all these concurrency problems is by allowing only one user to execute, only one transaction at any point in time. Imagine what could happen if you have a large database with several users who want to execute several transactions. All the transactions get queued and they may have to wait a long time before they could get a chance to execute their transactions. So you are getting poor performance and the whole purpose of having a powerful database system is defeated if you serialize access this way. At this point you might be thinking, for best performance let us allow all transactions to execute concurrently. The problem with this approach is that it may cause all sorts of concurrency problems (i.e Dirty Reads, Lost Updates, Nonrepeatable Reads, Phantom Reads) if two or more transactions work with the same data at the same time. SQL Server provides different transaction isolation levels, to balance concurrency problems and performance depending on our application needs. Read Uncommitted Read Committed Repeatable Read Snapshot Serializable The isolation level that you choose for your transaction, defines the degree to which one transaction must be isolated from resource or data modifications made by other transactions. Depending on the isolation level you have chosen you get varying degrees of performance and concurrency problems. The table here has the list of isoltaion levels along with concurrency side effects. Isolation Level Dirty Reads Lost Update Nonrepeatable Reads Phantom Reads Read Uncommitted Yes Yes Yes Yes Read Committed No Yes Yes Yes Repeatable Read No No No Yes Snapshot No No No No Serializable No No No No If you choose the lowest isolation level (i.e Read Uncommitted), it increases the number of concurrent transactions that can be executed at the same time, but the down side is you have all sorts of concurrency issues. On the other hand if you choose the highest isolation level (i.e Serializable), you will have no concurrency side effects, but the downside is that, this will reduce the number of concurrent transactions that can be executed at the same time if those transactions work with same data. In our upcoming videos we will discuss the concurrency problems in detail with examples
Views: 65720 kudvenkat
Types of locks.mp4
 
01:50
Views: 51 Kelsey Nash
DML Processing in an Oracle Database -  DBArch Video 8
 
09:07
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: 46828 Ramkumar Swaminathan
SQL: Transaction Part-1
 
06:05
In this tutorial, you'll learn what are transaction and nature of transaction. PL/SQL (Procedural Language/Structured Query Language) is Oracle Corporation's procedural extension for SQL and the Oracle relational database. PL/SQL is available in Oracle Database (since version 7), TimesTen in-memory database (since version 11.2.1), and IBM DB2 (since version 9.7).[1] Oracle Corporation usually extends PL/SQL functionality with each successive release of the Oracle Database. PL/SQL includes procedural language elements such as conditions and loops. It allows declaration of constants and variables, procedures and functions, types and variables of those types, and triggers. It can handle exceptions (runtime errors). Arrays are supported involving the use of PL/SQL collections. Implementations from version 8 of Oracle Database onwards have included features associated with object-orientation. One can create PL/SQL units such as procedures, functions, packages, types, and triggers, which are stored in the database for reuse by applications that use any of the Oracle Database programmatic interfaces. PL/SQL works analogously to the embedded procedural languages associated with other relational databases. For example, Sybase ASE and Microsoft SQL Server have Transact-SQL, PostgreSQL has PL/pgSQL (which emulates PL/SQL to an extent), and IBM DB2 includes SQL Procedural Language,[2] which conforms to the ISO SQL’s SQL/PSM standard. The designers of PL/SQL modeled its syntax on that of Ada. Both Ada and PL/SQL have Pascal as a common ancestor, and so PL/SQL also resembles Pascal in several aspects. However, the structure of a PL/SQL package does not resemble the basic Object Pascal program structure as implemented by a Borland Delphi or Free Pascal unit. Programmers can define public and private global data-types, constants and static variables in a PL/SQL package.[3] PL/SQL also allows for the definition of classes and instantiating these as objects in PL/SQL code. This resembles usage in object-oriented programming languages like Object Pascal, C++ and Java. PL/SQL refers to a class as an "Abstract Data Type" (ADT) or "User Defined Type" (UDT), and defines it as an Oracle SQL data-type as opposed to a PL/SQL user-defined type, allowing its use in both the Oracle SQL Engine and the Oracle PL/SQL engine. The constructor and methods of an Abstract Data Type are written in PL/SQL. The resulting Abstract Data Type can operate as an object class in PL/SQL. Such objects can also persist as column values in Oracle database tables. PL/SQL is fundamentally distinct from Transact-SQL, despite superficial similarities. Porting code from one to the other usually involves non-trivial work, not only due to the differences in the feature sets of the two languages,[4] but also due to the very significant differences in the way Oracle and SQL Server deal with concurrency and locking. There are software tools available that claim to facilitate porting including Oracle Translation Scratch Editor,[5] CEITON MSSQL/Oracle Compiler [6] and SwisSQL.[7] The StepSqlite product is a PL/SQL compiler for the popular small database SQLite. PL/SQL Program Unit A PL/SQL program unit is one of the following: PL/SQL anonymous block, procedure, function, package specification, package body, trigger, type specification, type body, library. Program units are the PL/SQL source code that is compiled, developed and ultimately executed on the database. The basic unit of a PL/SQL source program is the block, which groups together related declarations and statements. A PL/SQL block is defined by the keywords DECLARE, BEGIN, EXCEPTION, and END. These keywords divide the block into a declarative part, an executable part, and an exception-handling part. The declaration section is optional and may be used to define and initialize constants and variables. If a variable is not initialized then it defaults to NULL value. The optional exception-handling part is used to handle run time errors. Only the executable part is required. A block can have a label. Package Packages are groups of conceptually linked functions, procedures, variables, PL/SQL table and record TYPE statements, constants, cursors etc. The use of packages promotes re-use of code. Packages are composed of the package specification and an optional package body. The specification is the interface to the application; it declares the types, variables, constants, exceptions, cursors, and subprograms available. The body fully defines cursors and subprograms, and so implements the specification. Two advantages of packages are: Modular approach, encapsulation/hiding of business logic, security, performance improvement, re-usability. They support object-oriented programming features like function overloading and encapsulation. Using package variables one can declare session level (scoped) variables, since variables declared in the package specification have a session scope.
Views: 2896 radhikaravikumar
What is enq TX row lock contention
 
00:09
What is enq TX row lock contention Find More details Here: http://oracletech2u.blogspot.com/2014/03/what-is-enq-tx-row-lock-contention.html
Views: 191 oratech ahmed
Reeky Locks in Oracle, AZ
 
00:25
Reeky Locks in Oracle, AZ Phone Number : (520) 838-9576 http://yourtucsonlocksmith.com/oracle One of the most helpless circumstances anyone can encounter at the most inconvenient time of the day is a locked in or a locked out problem. Regardless of how much care we give them, they still tend to break sooner or later. We maybe the one to blame but what good it can do to us? Problems which are similar to this appear when we have least expect for it. This will cause you too much stress and frustrations. Also, it is not proper to deal with it all by yourself. It will be safer to let the specialists do it considering that they are trained and have the right knowledge in this area. The right solutions are within your reach with us so no need to worry. Our locksmith firm only emply the most trusted locksmiths. We make sure to provide reliable and most professional emergency locksmith services 24 hours a day, 7 days a week. We will provide you with complete and budget friendly locksmith services in Oracle, AZ. We have the up-to-date tools and applied the modern ways on solving lock problems and providing locksmith services. It is always important to get yourself ready for any type of burglary. Your family matters that most, thus, their security should come as your top priority. We'll take care of all your needs and demands with regard to your keys and any of your locking systems. All you have to do is to call us at our emergency hotline to acqure your most needed services. We do take great pride in all of our workmanship because we want to make sure that you get what you pay for - customer satisfaction at its finest. Any type of burglary can be really unpredictable. It can even happen in the most unexpected time. Your family members and valuable things should always be safe and protected. Make sure to call us at our emergency hotline to reach us.
GRANT,DEADLOCK IN ORACLE PART2
 
08:54
PART 2 6-GRANT 7-DEADLOCK BY YASSIR TAQATQA بواسطة ياسر طقاطقة
Views: 833 Yassir Taqatqa
This is how hackers hack you using simple social engineering
 
02:30
Simple Social Engineering Trick with a phone call and crying baby
Views: 732245 oracle mind
SQLPLUS: LineSize & PageSize
 
03:49
In this tutorial, you'll learn how to set linesize and pagesize . PL/SQL (Procedural Language/Structured Query Language) is Oracle Corporation's procedural extension for SQL and the Oracle relational database. PL/SQL is available in Oracle Database (since version 7), TimesTen in-memory database (since version 11.2.1), and IBM DB2 (since version 9.7).[1] Oracle Corporation usually extends PL/SQL functionality with each successive release of the Oracle Database. PL/SQL includes procedural language elements such as conditions and loops. It allows declaration of constants and variables, procedures and functions, types and variables of those types, and triggers. It can handle exceptions (runtime errors). Arrays are supported involving the use of PL/SQL collections. Implementations from version 8 of Oracle Database onwards have included features associated with object-orientation. One can create PL/SQL units such as procedures, functions, packages, types, and triggers, which are stored in the database for reuse by applications that use any of the Oracle Database programmatic interfaces. PL/SQL works analogously to the embedded procedural languages associated with other relational databases. For example, Sybase ASE and Microsoft SQL Server have Transact-SQL, PostgreSQL has PL/pgSQL (which emulates PL/SQL to an extent), and IBM DB2 includes SQL Procedural Language,[2] which conforms to the ISO SQL’s SQL/PSM standard. The designers of PL/SQL modeled its syntax on that of Ada. Both Ada and PL/SQL have Pascal as a common ancestor, and so PL/SQL also resembles Pascal in several aspects. However, the structure of a PL/SQL package does not resemble the basic Object Pascal program structure as implemented by a Borland Delphi or Free Pascal unit. Programmers can define public and private global data-types, constants and static variables in a PL/SQL package.[3] PL/SQL also allows for the definition of classes and instantiating these as objects in PL/SQL code. This resembles usage in object-oriented programming languages like Object Pascal, C++ and Java. PL/SQL refers to a class as an "Abstract Data Type" (ADT) or "User Defined Type" (UDT), and defines it as an Oracle SQL data-type as opposed to a PL/SQL user-defined type, allowing its use in both the Oracle SQL Engine and the Oracle PL/SQL engine. The constructor and methods of an Abstract Data Type are written in PL/SQL. The resulting Abstract Data Type can operate as an object class in PL/SQL. Such objects can also persist as column values in Oracle database tables. PL/SQL is fundamentally distinct from Transact-SQL, despite superficial similarities. Porting code from one to the other usually involves non-trivial work, not only due to the differences in the feature sets of the two languages,[4] but also due to the very significant differences in the way Oracle and SQL Server deal with concurrency and locking. There are software tools available that claim to facilitate porting including Oracle Translation Scratch Editor,[5] CEITON MSSQL/Oracle Compiler [6] and SwisSQL.[7] The StepSqlite product is a PL/SQL compiler for the popular small database SQLite. PL/SQL Program Unit A PL/SQL program unit is one of the following: PL/SQL anonymous block, procedure, function, package specification, package body, trigger, type specification, type body, library. Program units are the PL/SQL source code that is compiled, developed and ultimately executed on the database. The basic unit of a PL/SQL source program is the block, which groups together related declarations and statements. A PL/SQL block is defined by the keywords DECLARE, BEGIN, EXCEPTION, and END. These keywords divide the block into a declarative part, an executable part, and an exception-handling part. The declaration section is optional and may be used to define and initialize constants and variables. If a variable is not initialized then it defaults to NULL value. The optional exception-handling part is used to handle run time errors. Only the executable part is required. A block can have a label. Package Packages are groups of conceptually linked functions, procedures, variables, PL/SQL table and record TYPE statements, constants, cursors etc. The use of packages promotes re-use of code. Packages are composed of the package specification and an optional package body. The specification is the interface to the application; it declares the types, variables, constants, exceptions, cursors, and subprograms available. The body fully defines cursors and subprograms, and so implements the specification. Two advantages of packages are: Modular approach, encapsulation/hiding of business logic, security, performance improvement, re-usability. They support object-oriented programming features like function overloading and encapsulation. Using package variables one can declare session level (scoped) variables, since variables declared in the package specification have a session scope.
Views: 15357 radhikaravikumar
Lock change in Oracle, AZ
 
00:25
Lock change in Oracle, AZ Phone Number : (520) 838-9576 http://yourtucsonlocksmith.com/oracle One of the most helpless circumstances anyone can encounter at the most inconvenient time of the day is a locked in or a locked out problem. Regardless of how much care we give them, they still tend to break sooner or later. We maybe the one to blame but what good it can do to us? Problems which are similar to this appear when we have least expect for it. This will cause you too much stress and frustrations. Also, it is not proper to deal with it all by yourself. It will be safer to let the specialists do it considering that they are trained and have the right knowledge in this area. The right solutions are within your reach with us so no need to worry. Our locksmith firm only emply the most trusted locksmiths. We make sure to provide reliable and most professional emergency locksmith services 24 hours a day, 7 days a week. We will provide you with complete and budget friendly locksmith services in Oracle, AZ. We have the up-to-date tools and applied the modern ways on solving lock problems and providing locksmith services. It is always important to get yourself ready for any type of burglary. Your family matters that most, thus, their security should come as your top priority. We'll take care of all your needs and demands with regard to your keys and any of your locking systems. All you have to do is to call us at our emergency hotline to acqure your most needed services. We do take great pride in all of our workmanship because we want to make sure that you get what you pay for - customer satisfaction at its finest. Any type of burglary can be really unpredictable. It can even happen in the most unexpected time. Your family members and valuable things should always be safe and protected. Make sure to call us at our emergency hotline to reach us.
Unlocking the Postgres Lock Manager Bruce Momjian COTILLION 9.16.11
 
44:25
Presentation is at https://momjian.us/main/writings/pgsql/locking.pdf Locking is critical for providing high concurrency for any database --- you can't fully utilize your hardware if locking is throttling its use. This talk explores all aspects of locking in Postgres by showing queries and their locks; covered lock types include row, table, shared, exclusive, and advisory lock types. The high concurrency provided by Multiversion Concurrency Control (MVCC) is also covered. The talk will include analysis of locking on a running system.
Views: 1397 tcation
Oracle "Waiting"
 
04:58
Oracle - Waiting - sur l'album "Tree" (1993)
Views: 285 fidale rebbec
Source Boston 2010: The Four Types of Locks 3/6
 
10:01
Clip 3/6 Speaker: Deviant Ollam Physical security is an oft-overlooked component of data and system security in the technology world. You can have the most hardened servers and network but that doesn't make the slightest difference if someone can gain direct access to a console keyboard or, worse yet, march your hardware right out the door. While numerous ratings and standards exist in order classify specific security hardware, many of these standards are ill-defined and poorly-understood. Do you know what makes a "hardened" or "contractor grade" lock special? What does the phrase "high security" signify on hardware packaging? As it turns out, many of these terms are just for show... but Deviant will walk you step-by-step through some distinct and easy-to-follow examples of how low-grade locks can fail as well as how to clearly identify quality equipment. Additionally, we will cover the more difficult matter of hardware purchase decisions at the highest levels... fine distinctions such as which locks belong on the CEO's office versus which ones to use on your server rooms. Every situation calls for something a bit different, and those differences add up when you're spending $100 or more per lock. Make your money count and keep your budget, and your data, secure. For more information and presentation slides click here: http://bit.ly/8XJ1tm
Views: 1550 Christiaan008
Lock Down Your Cloud | Kiran Tailor
 
02:22
Oracle ACE Associate Kiran Tailor, global lead DBA and BI technical lead for CIMA, shares some quick pointers on locking down your cloud to insure the security of your data.
|Dave East x Kendrick x J Cole Type Beat New 2018 Instrumental|- LOCK Prod. by Oracle Beats
 
03:58
Dave East x Kendrick x J Cole Type Beat New 2018 Instrumental- LOCK Prod. by Oracle Beats ●💰 Purchase Link | Instant Download Link : http://bsta.rs/7x430 ●🔥 Let's hit 1K, Subscribe Here ☛ https://goo.gl/1iBmaj ●🌎Website : http://oraclebeats.com ●📲 Email : [email protected] ●🥁 Download 5 FREE Hip Hop Beats : https://goo.gl/otkGyh
Views: 98 Oracle Beats
SQL Server deadlock example
 
05:14
Text version of the video http://csharp-video-tutorials.blogspot.com/2015/08/sql-server-deadlock-example.html Slides http://csharp-video-tutorials.blogspot.com/2015/08/sql-server-deadlock-example_25.html All SQL Server Text Articles http://csharp-video-tutorials.blogspot.com/p/free-sql-server-video-tutorials-for.html All SQL Server Slides http://csharp-video-tutorials.blogspot.com/p/sql-server.html All Dot Net and SQL Server Tutorials in English https://www.youtube.com/user/kudvenkat/playlists?view=1&sort=dd All Dot Net and SQL Server Tutorials in Arabic https://www.youtube.com/c/KudvenkatArabic/playlists When can a deadlock occur In a database, a deadlock occurs when two or more processes have a resource locked, and each process requests a lock on the resource that another process has already locked. Neither of the transactions here can move forward, as each one is waiting for the other to release the lock. When deadlocks occur, SQL Server will choose one of processes as the deadlock victim and rollback that process, so the other process can move forward. The transaction that is chosen as the deadlock victim will produce the following error. Msg 1205, Level 13, State 51, Line 1 Transaction (Process ID 57) was deadlocked on lock resources with another process and has been chosen as the deadlock victim. Rerun the transaction. SQL script to create the tables and populate them with test data Create table TableA ( Id int identity primary key, Name nvarchar(50) ) Go Insert into TableA values ('Mark') Go Create table TableB ( Id int identity primary key, Name nvarchar(50) ) Go Insert into TableB values ('Mary') Go The following 2 transactions will result in a dead lock. Open 2 instances of SQL Server Management studio. From the first window execute Transaction 1 code and from the second window execute Transaction 2 code. -- Transaction 1 Begin Tran Update TableA Set Name = 'Mark Transaction 1' where Id = 1 -- From Transaction 2 window execute the first update statement Update TableB Set Name = 'Mary Transaction 1' where Id = 1 -- From Transaction 2 window execute the second update statement Commit Transaction -- Transaction 2 Begin Tran Update TableB Set Name = 'Mark Transaction 2' where Id = 1 -- From Transaction 1 window execute the second update statement Update TableA Set Name = 'Mary Transaction 2' where Id = 1 -- After a few seconds notice that one of the transactions complete -- successfully while the other transaction is made the deadlock victim Commit Transaction Next Video : We will discuss the criteria SQL Server uses to choose a deadlock victim
Views: 56583 kudvenkat
What is RANGE-LIST SUBPARTITIONS in Oracle via OEM ?
 
14:04
Hi friends today in my videos I'm going to explain with you What is RANGE-LIST SUB-PARTITIONS in Oracle via OEM Oracle database Unbeatable,Unbreakable Platform..
Views: 1445 Oracle World
EMC ProtectPoint for Oracle
 
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For more information, please visit: http://emc.im/1GySDnP The following demo shows how EMC ProtectPoint is able to provide faster, more efficient backup for mission-critical applications, while eliminating the impact on the application server by integrating directly from primary to industry-leading protection storage (EMC Data Domain). Also, Oracle DBAs are empowered to control their own backup and recovery using Oracle RMAN.
Views: 1551 Dell EMC
Cloud Access Security Brokers (CASB) in 5 Minutes
 
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An introduction to Cloud Access Security Brokers (CASB) in follow up to Gartner's recent report.
Views: 28513 CloudLock
C2C 2009 | Sesja 2 - Locks, latches, deadlocks SQL Server 2005/2008 by Łukasz Grala
 
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Locking mechanism is a key element of any system database. It is responsible mainly for the integrity of the logical and physical data. It is used in each model of control convergences pessimistic and optimistic. However, very often they are blocking problem administrators, developers and users mostly. In the course of the session will be discussed among other modes of locks (eg: shared, update, intent), their internal operation, and grain conflicts. In addition to the presentation of the internal locking mechanism, will also be presented with the problems of blocking, with latches and deadlocks. During the presentation you can learn about the practical use of tools available in SQL Server 2008 for the purpose of detection and identification of problems related to the lock.
Views: 958 PLSSUG
How To Use VirtualBox - Complete Step by Step Tutorial
 
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www.techzaada.com A step by step video of Virtualbox. this video is about how to use Virtual box with complete step by step guide. virtualbox is a software in wich you can install multiple windows operating systems. such as windows 7, windows 8, windows vista, windows xp, linux, even you can install MAC OS, inside your computer or virtualbox, download the virtualbox from the link below. . https://www.virtualbox.org/wiki/Downloads VISIT MY WEBSITE FOR MORE LATEST TIPS AND TRICKS. WWW.TECHZAADA.COM SUGGESTED VIDEOS..... 1. 5 Ways to Repair a Corrupted SD Card/USB Flash or External Hard Disk. https://www.youtube.com/watch?v=oBkC8EhbZ7U&t=160s 2. How to Transfer Files From USB Flash to iPhone/iPad/iPod (No Computer Needed) https://www.youtube.com/watch?v=o-T3V9WgoSg&t=114s - 3. How to Remove Pattern or Password from Android Phone without Factory Reset/Without Loosing data. https://www.youtube.com/watch?v=mbMBqBLPGLQ&t=1s - 4. How to Hide your WiFi Signal from others. https://www.youtube.com/watch?v=Z4jG1Dw-9iU&t=12s - 5. How to Backup or Recover Data from a Broken Android Phone/Tablet https://www.youtube.com/watch?v=noCGBSryzIc&t=25s - 6. How to install Mac OS on any Windows Computer https://www.youtube.com/watch?v=Dd7z-lQ1FB0&t=52s - 7. How to Recover deleted files from Android. https://www.youtube.com/watch?v=EvesbfSC6hU - 8. How to Backup data from a Broken iPhone or iPad. https://www.youtube.com/watch?v=gmfCDvt-vrI&t=163s - 7. How to get PAID Udemy courses for free. https://www.youtube.com/watch?v=HX2gtSQPU8U&t=3s . -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- Follow me on Twitter https://twitter.com/TechZaada Follow me on Facebook https://www.facebook.com/techzaada Follow me on Google Plus https://plus.google.com/u/0/communities/102161270264068173502 -~-~~-~~~-~~-~- Please watch: "How to Unlock Android Pattern or Pin Lock without losing data | Without USB Debugging" https://www.youtube.com/watch?v=mbMBqBLPGLQ -~-~~-~~~-~~-~-
Views: 739347 Tech Zaada
Intro | Oracle OpenWorld 2013
 
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Oracle OpenWorld 2013 is kicking off on September 22, 2013 and will run through until Thursday, September 26 at the Moscone Center in San Francisco, CA. Our premier broadcast program theCUBE will be there, streaming live coverage of the event. Featuring exclusive interviews with the industry's top executives and thought leaders, theCUBE is where the action is. Attendee Information If you haven't registered for the event, registration is still open, and you can even get a $200 discount if you register in groups. Attendees will hear Keynotes from Oracle CEO Larry Ellison, who's already set high expectations for the cloud topics he's likely to address, including Oracle's new In-Memory database option for improved software management. Other Keynotes will come from Oracle President Mark Hurd, Fujitsu Corporate Senior Vice President Noriyuki Toyoki, Thomson Reuters Global Data Center SVP Mark Bluhm, NYSE Euronext CEO Duncan L. Niederauer, Intel Corporate VP and GM of Software and Services Group Douglas Fisher, Oracle EVP of Product Development Thomas Kurian, Oracle EVP of Systems John Fowler, EMC Chairman and CEO Joe Tucci, Microsoft Corporate VP of Cloud and Enterprise Engineering Brad Anderson, and many others from Oracle and their partners and clients. There are smartphone apps for both Android and iOS available for attendees and remote viewers, so you can keep updated on what's happening at the event as well as help you create a schedule, so you won't miss any of the Keynotes. Aside from theCUBE, social media is also a good way for you to stay informed so be sure to follow Oracle on Twitter @oracleopenworld and its Official Blog. Search for topics regarding the even using the hashtag #oow13 -- we'll be part of the conversation as well. Follow our team @SiliconANGLE, while theCUBE hosts CEO and Founder John Furrier and Wikibon CEO and Co-founder Dave Vellante will be offering more insight -- follow them @furrier and @dvellante. There are many meet and greet opportunities at OpenWorld, such as the America's Cup for sailing enthusiasts, the Welcome Reception, and the Appreciation Event featuring artists such as Maroon 5 and The Black Keys. Can Oracle shine in the Cloud? Oracle is a dominant player in relational databases but its high licensing fees leave a bitter aftertaste in customers' mouths. Aside from that, it has been stubborn in adapting to the growing world of Big Data, Hadoop, and NoSQL. "Oracle's proprietary, closed technology, and its lock-in approach to its customer base, along with its monolithic, vertically integrated technology, is a sharp contrast to the horizontal build-out approach based on Open Systems that typifies the new reality in IT," SiliconANGLE's Bert Latamore pointed out. But Oracle may be turning things around, having recently unveiled a major upgrade with an upcoming In-Memory switch to boost virtualization capabilities for managing apps, and the ZS3-2 and ZS3-4 storage products, both deemed a huge step up in its offerings. Wikibon CTO and Co-founder David Floyer stated that the two products deliver Tier-1 performance but at Tier-3 prices. Oracle's proactive developments across hardware and software are starting to pay off, as the company's stock prices and revenue are cautiously returning to comfortable levels. "[I]t is our belief that Oracle is providing the R&D muscle that Sun lacked and focusing its efforts on the ZFS appliance, which is a diamond in the Oracle storage portfolio rough. We expect Oracle to continue to enhance the platform and broaden its uses cases. Moreover we believe that Oracle, the company with a reputation for lock-in, will attempt to lock-out competitors by increasingly leveraging integration up the stack while the competition searches for answers to the Oracle integration strategy," Floyer stated. Intro,Oracle OpenWorld 2013 with Dave Vellante, Jeff Kelly, and Stu Miniman @thecube #oow13
Improving foreign key concurrency
 
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To lock and not to block Row locking is a mechanism that lets Postgres maintain strict consistency in certain database constraints, such as foreign keys. However, Postgres has historically only provided share and exclusive row locking, which I'll show to have significant drawbacks for concurrency. To solve the concurrency problem, two new row lock types are being introduced in release 9.2: SELECT FOR KEY SHARE and SELECT FOR KEY UPDATE. In this talk I'll explain how this new locking came to be, how it works, and how it helps significantly improve concurrency in applications.
Views: 211 Andrea Ross

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