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oracle world - Row Level Lock in Oracle database
 
14:21
Hello friends in this video we learn how the lock occur in database automatically when multiple user modified the same transaction in their session. #RowLevelLock Oracle database Unbeatable,Unbreakable Platform..
Views: 7242 Oracle World
Oracle - Locking - Beginner
 
06:40
Oracle - Locking - Beginner
Views: 8366 Chris Ostrowski
Oracle Locks Explained Part 1
 
12:02
Oracle Locks explained. How to Kill a User session in oracle database- Neway IT Solutions
Views: 2118 NewayITSolutions LLC
01 Oracle database Table lock
 
20:58
Purpose Use the LOCK TABLE statement to lock one or more tables, table partitions, or table subpartitions in a specified mode. This lock manually overrides automatic locking and permits or denies access to a table or view by other users for the duration of your operation. Some forms of locks can be placed on the same table at the same time. Other locks allow only one lock for a table. A locked table remains locked until you either commit your transaction or roll it back, either entirely or to a savepoint before you locked the table. A lock never prevents other users from querying the table. A query never places a lock on a table. Readers never block writers and writers never block readers. See Also: Oracle Database Concepts for a complete description of the interaction of lock modes COMMIT ROLLBACK SAVEPOINT Prerequisites The table or view must be in your own schema or you must have the LOCK ANY TABLE system privilege, or you must have any object privilege on the table or view. ROW SHARE ROW SHARE permits concurrent access to the locked table but prohibits users from locking the entire table for exclusive access. ROW SHARE is synonymous with SHARE UPDATE, which is included for compatibility with earlier versions of Oracle Database. ROW EXCLUSIVE ROW EXCLUSIVE is the same as ROW SHARE, but it also prohibits locking in SHARE mode. ROW EXCLUSIVE locks are automatically obtained when updating, inserting, or deleting. SHARE UPDATE See ROW SHARE. SHARE SHARE permits concurrent queries but prohibits updates to the locked table. SHARE ROW EXCLUSIVE SHARE ROW EXCLUSIVE is used to look at a whole table and to allow others to look at rows in the table but to prohibit others from locking the table in SHARE mode or from updating rows. EXCLUSIVE EXCLUSIVE permits queries on the locked table but prohibits any other activity on it. NOWAIT Specify NOWAIT if you want the database to return control to you immediately if the specified table, partition, or table subpartition is already locked by another user. In this case, the database returns a message indicating that the table, partition, or subpartition is already locked by another user. WAIT Use the WAIT clause to indicate that the LOCK TABLE statement should wait up to the specified number of seconds to acquire a DML lock. There is no limit on the value of integer. If you specify neither NOWAIT nor WAIT, then the database waits indefinitely until the table is available, locks it, and returns control to you. When the database is executing DDL statements concurrently with DML statements, a timeout or deadlock can sometimes result. The database detects such timeouts and deadlocks and returns an error.
Views: 794 Md Arshad
SQL tutorial 41: How to UNLOCK USER in oracle Database
 
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SQL tutorial on How to unlock user or schema in oracle database or how to unlock hr account/user/schema in oracle database using alter user SQL command. you can use the steps to change the password of any user in oracle database explained in detail. Celebrating 1000 subscribers. Thanks a lot guys for all your love and support. ------------------------------------------------------------------------- Blog Link: http://bit.ly/unlock-user-in-oracle -------------------------------------------------------------------------- ►Make sure you SUBSCRIBE and be the first one to see my ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Follow What I am up to as it happens on https://twitter.com/rebellionrider https://www.facebook.com/imthebhardwaj http://instagram.com/rebellionrider https://plus.google.com/+Rebellionrider http://in.linkedin.com/in/mannbhardwaj/ http://rebellionrider.tumblr.com/ http://www.pinterest.com/ Please please LIKE and SHARE my videos it makes me happy. Thanks for liking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com ♥ I LOVE ALL MY VIEWERS AND SUBSCRIBERS
Views: 39061 Manish Sharma
Locks   Blocks   Deadlocks
 
08:49
Understanding Locks, Blocks and dead locks in oracle database.
Views: 3786 OrSkl Academy
Oracle DBA - Solve Long Running Query & TX Row Lock Contention | Performance Tuning
 
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How to Solve Row Lock Contention in Oracle Database - Performance Tuning - Oracle DBA Solve Row Lock Contention & Long Running Query in Oracle Database - Performance Tuning Oracle DBA - Performance Tuning Row Lock Contention Please Like, Comment, Subscribe and Share... Boxcut Media.
Views: 7149 BoxCut Media
SQL tutorial 42: How to Unlock user using SQL Developer By Manish Sharma RebellionRider
 
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In this tutorial you will learn how to unlock account using SQL Developer. Using the steps used in this tutorial you can unlock any user account such as HR,OE,Scott in oracle database. Another part of user management in Oracle Database. Keep watching Enjoy SQLing Celebrating 1000 subscribers. Thanks a lot guys for all your love and support. ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Website: www,Rebellionrider.com Blog: http://bit.ly/unlock-user-using-sql-developer Previous Tutorial: How to unlock user using SQL Alter User command http://youtu.be/sMqq9MSVmQo Tutorial 38: http://youtu.be/GS4udgR44Ls Links of how to create user tutorial Create user using SQL Developer http://youtu.be/GS4udgR44Ls Create user using Create user command http://youtu.be/4QbK2Y-1LZw Create user using EM http://youtu.be/zGjh-Bb3HrI ------------------------------------------------------------------------- -------------------------------------------------------------------------- ►Make sure you SUBSCRIBE and be the first one to see my videos! -------------------------------------------------------------------------- Amazon Wishlist: http://bit.ly/wishlist-amazon ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ►►►Find me on Social Media◄◄◄ Follow What I am up to as it happens on https://twitter.com/rebellionrider https://www.facebook.com/imthebhardwaj http://instagram.com/rebellionrider https://plus.google.com/+Rebellionrider http://in.linkedin.com/in/mannbhardwaj/ http://rebellionrider.tumblr.com/ http://www.pinterest.com/rebellionrider/ You can also Email me at [email protected] Please please LIKE and SHARE my videos it makes me happy. Thanks for liking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com ♥ I LOVE ALL MY VIEWERS AND SUBSCRIBERS
Views: 22872 Manish Sharma
02 Shared Lock & Exclusive Lock In oracle database table lock
 
11:32
Purpose Use the LOCK TABLE statement to lock one or more tables, table partitions, or table subpartitions in a specified mode. This lock manually overrides automatic locking and permits or denies access to a table or view by other users for the duration of your operation. Some forms of locks can be placed on the same table at the same time. Other locks allow only one lock for a table. A locked table remains locked until you either commit your transaction or roll it back, either entirely or to a savepoint before you locked the table. A lock never prevents other users from querying the table. A query never places a lock on a table. Readers never block writers and writers never block readers. See Also: Oracle Database Concepts for a complete description of the interaction of lock modes COMMIT ROLLBACK SAVEPOINT Prerequisites The table or view must be in your own schema or you must have the LOCK ANY TABLE system privilege, or you must have any object privilege on the table or view. ROW SHARE ROW SHARE permits concurrent access to the locked table but prohibits users from locking the entire table for exclusive access. ROW SHARE is synonymous with SHARE UPDATE, which is included for compatibility with earlier versions of Oracle Database. ROW EXCLUSIVE ROW EXCLUSIVE is the same as ROW SHARE, but it also prohibits locking in SHARE mode. ROW EXCLUSIVE locks are automatically obtained when updating, inserting, or deleting. SHARE UPDATE See ROW SHARE. SHARE SHARE permits concurrent queries but prohibits updates to the locked table. SHARE ROW EXCLUSIVE SHARE ROW EXCLUSIVE is used to look at a whole table and to allow others to look at rows in the table but to prohibit others from locking the table in SHARE mode or from updating rows. EXCLUSIVE EXCLUSIVE permits queries on the locked table but prohibits any other activity on it. NOWAIT Specify NOWAIT if you want the database to return control to you immediately if the specified table, partition, or table subpartition is already locked by another user. In this case, the database returns a message indicating that the table, partition, or subpartition is already locked by another user. WAIT Use the WAIT clause to indicate that the LOCK TABLE statement should wait up to the specified number of seconds to acquire a DML lock. There is no limit on the value of integer. If you specify neither NOWAIT nor WAIT, then the database waits indefinitely until the table is available, locks it, and returns control to you. When the database is executing DDL statements concurrently with DML statements, a timeout or deadlock can sometimes result. The database detects such timeouts and deadlocks and returns an error.
Views: 882 Md Arshad
Oracle Database 12c Tutorial 4: How to install sample schemas / users in Oracle Database 12c
 
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Learn how to install sample schemas or users in oracle database 12c, In this tutorial you will also learn how to create a pluggable database in oracle database 12c by manish sharma RebellionRider ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog : http://bit.ly/how-to-install-sample-schema-users-hr-sh-in-oracle-12c Previous Tutorial ► Tut 61: How To Unlock HR schema in Oracle Database 12c http://youtu.be/F81gfUnznZY ------------------------------------------------------------------------- ►►►Help Me In Getting A Job◄◄◄ ►Help Me In Getting A Good Job By Connecting With Me on My LinkedIn and Endorsing My Skills. All My Contact Info is Down Below. You Can Also Refer Me To Your Company Thanks ------------------------------------------------------------------------- Copy Cloud referral link || Use this link to join copy cloud and get 20GB of free storage https://copy.com?r=kb4rc1 -------------------------------------------------------------------------- ►Make sure you SUBSCRIBE and be the 1st one to see my videos! -------------------------------------------------------------------------- Amazon Wishlist: http://bit.ly/wishlist-amazon ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ►►►Find me on Social Media◄◄◄ Follow What I am up to as it happens on https://twitter.com/rebellionrider https://www.facebook.com/imthebhardwaj http://instagram.com/rebellionrider https://plus.google.com/+Rebellionrider http://in.linkedin.com/in/mannbhardwaj/ http://rebellionrider.tumblr.com/ http://www.pinterest.com/rebellionrider/ You can also Email me at [email protected] Please please LIKE and SHARE my videos it makes me happy. Thanks for liking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com ♥ I LOVE ALL MY VIEWERS AND SUBSCRIBERS
Views: 54016 Manish Sharma
Destiny 2 - Trade With Secret CATS - Locations x3 - Dreaming City Loot / Forsaken
 
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Secret Cats are all over the Dreaming city, they give you epic rewards!! Today I bring you the location of 3 I've found so far! ►LIKE ►COMMENT ►SUBSCRIBE ►PRESS THE BELL BUTTON Controller Giveaway - https://goo.gl/TsFfYL DLCGNinja: https://www.twitch.tv/dlcgninja https://t.co/1N5tsX6NBS Coolshadesdog: https://www.reddit.com/r/DestinyTheGame/comments/9d3nu3/spoiler_secret_cat/ All My Social Media Links! ►Join My Discord - https://discord.gg/RB2muVF ►Subscribe to my channel here - http://goo.gl/qPP7K ►Follow me on Twitter: https://twitter.com/dpjsc08 ►Like my Facebook Page: http://www.facebook.com/YTdpjsc08 ►Follow My Instagram: http://instagram.com/ytdpjsc08 Submit Top 5 Destiny Clips To: ►[email protected] Submit Top5 Fortnite Clips To: ►[email protected] Get A Discount On The Products Below By Using Code "DPJ" ►5% Off - ControllerModz - http://goo.gl/jm3CpZ ►10% Off - X-Gamer Energy Drinks - http://www.x-gamer.co.uk/ ►5% Off - GtOmegaRacing Gaming Chairs, ►UK - http://goo.gl/4fV3RL & USA - http://goo.gl/65hO9M
Views: 224748 DPJ
SQL tutorial 38: How to create user using SQL Developer in Oracle database
 
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How to create new user accounts using SQL Developer in oracle database. In This tutorial you will learn how to create a new user account. How to setup a database connection with SyS user. How to grant privileges to the user ----_Links_--- Blog :http://bit.ly/create_user_account Video Tut 4: http://youtu.be/wSqoXRlXDUU How to create database: http://youtu.be/enFFezPYhCg Copy Cloud referral link || Use this link to join copy cloud and get 20GB of free storage https://copy.com?r=kb4rc1 Amazon Wishlist: http://bit.ly/wishlist-amazon Contacts E-Mail [email protected] Twitter https://twitter.com/rebellionrider Instagram http://instagram.com/rebellionrider Facebook. https://www.facebook.com/imthebhardwaj Linkedin. http://in.linkedin.com/in/mannbhardwaj/ Thanks for liking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com
Views: 65116 Manish Sharma
How to solve ORA-28000: the account is locked
 
02:48
This video demonstrates how to solve the ORA-28000: the account is locked error. When we try to connect to a schema that has been locked by the DBA or by wrong password attempts then the error ORA:28000 is encountered. This video will demonstrate the ways in which the error can be resolved. To get the queries shown in the video, you can visit our website http://oracleplsqlblog.com/FullBlog/FullBlog/23
Views: 16628 Kishan Mashru
How to Easily Identifying Oracle Locks
 
02:10
How to Easily Identifying Oracle Locks. For more information, please go to: http://www.embarcadero.com/products/dbartisan-xe
Views: 2052 DBPowerStudio
SCOTT schema in Oracle
 
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plz subscribe blog :http://javaweb4u.blogspot.in/ When you started installing oracle ,it asked for global database name and database passwordthat password is used for the sys system sysman account. SQL : conn user/password; SQL : conn scott/tiger; Error message is displayed: the account is locked. 1. Try to login as "system" - pass SQL : conn system/password; SQL : @%ORACLE_HOME%\RDBMS\ADMIN\SCOTT.sql 2. Unlock "scott" SQL : alter user scott account unlock; 3. Can change "tiger": SQL : alter user scott identified by tiger; 4. SQL : conn scott/tiger; -Success scott account is locked in 11g due to security thinking, Now you can type Connection Name :ORCL ,username:Scott,password:tiger to login
Views: 11660 Javaweb4u
Oracle username and password and Account unlocking
 
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all education purpose videos
Views: 279070 Chandra Shekhar Reddy
Oracle Database 12c Tutorial  2: How To Unlock HR schema in Oracle Database 12c
 
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Learn how to unlock HR user / Schema in Oracle Database 12c. Step by step procedure of unlocking the HR Schema in Oracle 12c By Manish Sharma a.k.a RebellionRider ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog : http://bit.ly/how-to-unlock-hr-user-in-oracle-database-12c Previous Tutorial ► Tut 60: How To Install 12c On Windows 7: http://youtu.be/T-rCbe1MMG4 ------------------------------------------------------------------------- ►►►Help Me In Getting A Job◄◄◄ ►Help Me In Getting A Good Job By Connecting With Me on My LinkedIn and Endorsing My Skills. All My Contact Info is Down Below. You Can Also Refer Me To Your Company Thanks ------------------------------------------------------------------------- Copy Cloud referral link || Use this link to join copy cloud and get 20GB of free storage https://copy.com?r=kb4rc1 -------------------------------------------------------------------------- ►Make sure you SUBSCRIBE and be the 1st one to see my videos! -------------------------------------------------------------------------- Amazon Wishlist: http://bit.ly/wishlist-amazon ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ►►►Find me on Social Media◄◄◄ Follow What I am up to as it happens on https://twitter.com/rebellionrider https://www.facebook.com/imthebhardwaj http://instagram.com/rebellionrider https://plus.google.com/+Rebellionrider http://in.linkedin.com/in/mannbhardwaj/ http://rebellionrider.tumblr.com/ http://www.pinterest.com/rebellionrider/ You can also Email me at [email protected] Please please LIKE and SHARE my videos it makes me happy. Thanks for liking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com ♥ I LOVE ALL MY VIEWERS AND SUBSCRIBERS
Views: 84180 Manish Sharma
Oracle Database Lock Mode
 
08:01
Tipe – tipe lock yang terdapat di oracle database
Views: 197 Muhammad Umar
A easy method to unlock any user in Oracle 10g, 11g
 
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Easy method to unlock any user account in Oracle database 10g and 11g. In this tutorial I have unlocked hr user account you can unlock any user account from following list: Anonymous CTXSYS SCOTT EXFSYS MDSYS OLAPSYS SYS SYSTEM click start and type sqlplus then type the user-name: sys / as sysdba then type the password that you have set during the installation of the oracle software type the following to unlock account alter user scott account unlock; type the following to set password for user account alter user scott idenfied by tiger; where tiger is your password Thanks for watching and subscribe for more. . . :)
Views: 5951 Abdul ReHmaN
Global Index rebuild scenario in Oracle Database 11g
 
08:41
Why and How we need to rebuild global Index in Oracle 11g
Views: 3205 Athar Fahad
Difference between blocking and deadlocking
 
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deadlock vs blocking sql server In this video we will discuss the difference between blocking and deadlocking. This is one of the common SQL Server interview question. Let us understand the difference with an example. 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 Blocking : Occurs if a transaction tries to acquire an incompatible lock on a resource that another transaction has already locked. The blocked transaction remains blocked until the blocking transaction releases the lock. Example : 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. Notice that Transaction 2 is blocked by Transaction 1. Transaction 2 is allowed to move forward only when Transaction 1 completes. --Transaction 1 Begin Tran Update TableA set Name='Mark Transaction 1' where Id = 1 Waitfor Delay '00:00:10' Commit Transaction --Transaction 2 Begin Tran Update TableA set Name='Mark Transaction 2' where Id = 1 Commit Transaction Deadlock : Occurs when two or more transactions have a resource locked, and each transaction requests a lock on the resource that another transaction has already locked. Neither of the transactions here can move forward, as each one is waiting for the other to release the lock. So in this case, SQL Server intervenes and ends the deadlock by cancelling one of the transactions, so the other transaction can move forward. Example : 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. Notice that there is a deadlock between Transaction 1 and Transaction 2. -- 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 Link for all dot net and sql server video tutorial playlists https://www.youtube.com/user/kudvenkat/playlists?sort=dd&view=1 Link for slides, code samples and text version of the video http://csharp-video-tutorials.blogspot.com/2015/09/difference-between-blocking-and.html
Views: 73555 kudvenkat
Table Shrinking in Oracle Database
 
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1.Shrink the Table: Shrinking is started from 10g. In this method I’m using user u1 and table name sm1. Now I’m deleting some rows in sm1 COUNT ---------- 1048576 Table sm1 has 1048576 rows. [email protected]: delete from sm1 where deptno=10; 262144 rows deleted. I deleted above number of rows. Rows COUNT ---------- 786432 And I’m giving commit [email protected]: commit; Commit complete. So now we have 786432 rows in sm1 table. Now see the following command [email protected]: select OWNER,TABLESPACE_NAME,SEGMENT_NAME,SEGMENT_TYPE,BYTES/1024/1024||' mb'"space",BLOCKS,EXTENTS from dba_segments where tablespace_name like 'U%TS'; OWNER TABLESPACE_NAME SEGMENT_NAME SEGMENT_TYPE space BLOCKS EXTENTS ----- --------------- ------------- ------------- ------ ---------- ---------- U1 U1TS SM1 TABLE 29 mb 3712 44 After I deleted some rows in sm1 table still above result showing same values, so now our duty is shrink this table. This is done by following 2 ways, i By using COMPACT key word: In this method shrinking is done in two phases. In the first phase all fragmented space are just defragmented, but still the High Water Mark is persist with last used block only. That mean used free blocks are not de allocated and HWM is not updated here. Issue the following command before use shrink command. [email protected] alter table sm1 enable row movement; Table altered. There is particular use with above command, when we shrink the table all rows are moves to contiguous blocks, so here row movement should be done. By default the row movement is disabled for any table, so above command enabled the row movement. Then execute shrink command now. [email protected]: alter table sm1 shrink space compact; Table altered. Now see the space of table by using below command. [email protected]: select OWNER,TABLESPACE_NAME,SEGMENT_NAME,SEGMENT_TYPE,BYTES/1024/1024||' mb'"space",BLOCKS,EXTENTS from dba_segments where tablespace_name like 'U%TS'; OWNER TABLESPACE_NAME SEGMENT_NAME SEGMENT_TYPE space BLOCKS EXTENTS ----- --------------- ------------- ------------- ------ ---------- ---------- U1 U1TS SM1 TABLE 29 mb 3712 44 So here seems nothing happened with above shrink command, but internally the fragmented space is defragmented. But the high water mark is not updated, used free blocks are also not de allocated. For de allocating the used blocks we have to execute below command. This is the second phase. [email protected]: alter table sm1 shrink space; Table altered. Now see the space by using below command. [email protected]: select OWNER,TABLESPACE_NAME,SEGMENT_NAME,SEGMENT_TYPE,BYTES/1024/1024||' mb'"space",BLOCKS,EXTENTS from dba_segments where tablespace_name like 'U%TS'; OWNER TABLESPACE_NAME SEGMENT_NAME SEGMENT_TYPE space BLOCKS EXTENTS ----- --------------- ------------- ------------- ---------- ---------- ---------- U1 U1TS SM1 TABLE 20.8125 mb 2664 36 So now the space of sm1 table is reduced. Note: Actually the alter table sm1 shrink space command will complete these two phases of the shrinking of table at a time. But here we done shrink process in two phases because when we use alter table sm1 shrink space command the table locked temporarily some time period, during this period users unable to access the table. So if we use alter table sm1 shrink space compact command the table is not locked but space is defragmented. When we not in business hours issue the second phase shrink command then users are won’t get any problem. ii Because of above method the table dependent objects are goes to invalid state, to overcome this problem we have to use below command. [email protected]: alter table sm1 shrink space cascade; Table altered. The above command also shrinks the space of all dependent objects. We also do this in two phases like above two phases. See the below command. [email protected]: alter table sm1 shrink space compact cascade; Table altered. And then [email protected]: alter table sm1 shrink space cascade; Table altered. Transporting tablespace to different platform by Using RMAN : https://www.youtube.com/watch?v=CN401PUKK4A Oracle EBS apps Upgrade from 12 2 to 12 2 5 (start CD 51) : https://www.youtube.com/watch?v=zeO4goqR70Y Transport tablespace by using RMAN.: https://www.youtube.com/watch?v=YG6kWX7Par8
Views: 6957 BhagyaRaj Katta
postgresql HOW TO FIND LOCKED SESSION AND KILL
 
21:23
This is Video you will know how to find the locked and locking session and how to kill them
Views: 273 CAM DBA
SQL tutorial 45: Introduction to user Privileges in Oracle Database By Manish Sharma RebellionRider
 
04:30
First SQL Tutorial in the series of user privileges in oracle database an introduction to user privileges. In this tutorial you will learn ● What is user privileges ● Different types of user Privileges ● Data Control Language (DCL) Grant and Revoke ● Who Can Grant or Revoke System Privileges? ● Oracle grant flags such as "With Admin option, With Grant option and with hierarchy option " This is a quick video on Introduction of user privileges expaining the theoretical concepts for the better understanding of the concept and up coming videos in USER PRIVILEGE series. Celebrating 1000 subscribers. Thanks a lot guys for all your love and support. ------------------------------------------------------------------------ ►►►LINKS◄◄◄ Blog: http://bit.ly/introduction-to-user-privileges ------------------------------------------------------------------------- Copy Cloud referral link || Use this link to join copy cloud and get 20GB of free storage https://copy.com?r=kb4rc1 -------------------------------------------------------------------------- ►Make sure you SUBSCRIBE and be the first one to see my videos! -------------------------------------------------------------------------- Amazon Wishlist: http://bit.ly/wishlist-amazon ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ►►►Find me on Social Media◄◄◄ Follow What I am up to as it happens on https://twitter.com/rebellionrider https://www.facebook.com/imthebhardwaj http://instagram.com/rebellionrider https://plus.google.com/+Rebellionrider http://in.linkedin.com/in/mannbhardwaj/ http://rebellionrider.tumblr.com/ http://www.pinterest.com/rebellionrider/ You can also Email me at [email protected] Please please LIKE and SHARE my videos it makes me happy. Thanks for liking, commenting, sharing and watching more of our videos This is Manish from RebellionRider.com ♥ I LOVE ALL MY VIEWERS AND SUBSCRIBERS
Views: 28174 Manish Sharma
Oracle Locks and Lock Trees
 
07:08
Rows Locks and sessions waiting in a "tree order" on Row Locks in Oracle
Views: 218 Hemant K Chitale
How to Unlock Oracle Sample HR Schema Account
 
04:54
The sample oracle database HR Schema account is locked by default. This video shows how to unlock the HR Schema account.
Views: 25223 SQL TUTORIALS
Table Locking ( MySQL ) - Tutorial
 
05:26
Table locking is an existing query in mysql, where this query is used to lock the table at the time the user or admin wants to perform INSERT, UPDATE, or DELETE. This query is run when a database resides on the server and there are few users who can access the database.So in order to avoid conflicting data during INSERT, UPDATE, DELETE then use Table Locking. - Introduction : 0:00 - Coding : 0:52
Views: 7000 Muhammad Ikram
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: 5063 DellTechCenter
Oracle Deadlock
 
00:57
Views: 197 Ladida455
Oracle Database Users / User Management (Simple)
 
09:33
Create, Alter, Drop, Grant Rights, Default Tablespace, Temporary Tablespace, Quota Setup, View Users Information, Lock / Unlock user account select username,account_status,default_tablespace, temporary_tablespace,created from dba_users; create user myuser identified by myuser; alter user myuser quota unlimited on mytbs; alter user myuser quota 100m on mytbs; alter user temporary tablespace temp; alter user myuser default tablespace mytbs; alter user myuser accout unlock; alter user myuser account lock; alter user myuser password expire; alter user myuser identified by youuser; create user myuser identified by myuser default tablespace users temporary tablespace temp quota unlimited on users; grant create session, resource to myuser; grant create session, resource to myuser with grant option; drop user asif; drop user asif cascade;
Views: 41481 Abbasi Asif
How to Create SCOTT Schema and default tables in Oracle Database 11g
 
04:31
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Views: 17464 variabletips
How to find block sizes of all Oracle Database files
 
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Block size of control files and redo log files are not same as default block size of your oracle database. Understand the level of control we got to alter these block sizes from one of my real time activity. Many more interesting blogs at : www.orskl.com/blog Looking for Oracle DBA training: www.orskl.com/training WhatsApp: +919951696808
Views: 3301 OrSkl Academy
Deadlock? in oracle database
 
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Hello friends in this video we learn how the lock occur in database automatically when multiple user modified the same transaction in their session. #Deadlock Oracle database Unbeatable,Unbreakable Platform..
Views: 7943 Oracle World
How to Release a lock on Table in SQL Server
 
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Click here to Subscribe to IT PORT Channel : https://www.youtube.com/channel/UCMjmoppveJ3mwspLKXYbVlg By the Way to Terminate a Session is used to Release a Lock in a Table. In this Video we used KILL Statement to Release a Lock. KILL can be used to terminate a normal connection, which internally terminates the transactions that are associated with the specified session ID. So, Transaction automatically gets Rolled back and Lock will be Released.
Views: 1062 IT Port
Oracle Hints Tutorial for improving performance with examples
 
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Oracle Hints Tutorial for improving performance with examples Oracle Hints Oracle Tutorial for beginners SQL Tutorial for beginners SQL Hints SQL Performance tuning
Views: 3384 TechLake
Simplified DBA-019-Data Concurrency and Locks
 
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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.
Oracle Midlands #13: Interpreting AWR Reports - Franck Pachot
 
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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.
Views: 10849 Oracle Midlands
SQLPLUS: LineSize & PageSize
 
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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: 17786 radhikaravikumar
Create new connection with new user in Oracle SQL Developer
 
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This video shows you how to create a new connection using a new user account (other than the system user account) in Oracle SQL Developer, so that you have a clean workspace without all the clutter of system tables. It is NOT a general introduction to using Oracle SQL Developer.
Views: 352805 Chitu Okoli
Hints and Tips - Avoiding never ending locks - part 2
 
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Row locking is a critical component of ensuring the integrity of your data inside the database. But locks of extended duration can easily create system-wide problems in your applications. This quick tip gives you some ideas for handling locks better. ====================================================== Copyright © 2015 Oracle and/or its affiliates. Oracle is a registered trademark of Oracle and/or its affiliates. All rights reserved. Other names may be registered trademarks of their respective owners. Oracle disclaims any warranties or representations as to the accuracy or completeness of this recording, demonstration, and/or written materials (the “Materials”). The Materials are provided “as is” without any warranty of any kind, either express or implied, including without limitation warranties or merchantability, fitness for a particular purpose, and non-infringement.
Views: 766 Connor McDonald
How2Find Username and Password of User Account in Oracle Database
 
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In This Video How To Know The Username and Password of Newly Created User Account in Oracle Database 10G. With This Video You Will have knowledge on How To Find How many Number of Users are present in Your Oracle Database.
Views: 18410 Be a Santa
Deadlock transaction in a database with one table - PostgreSQL
 
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No sound was recorded. PostgreSQL 10.0 For Oracle see https://youtu.be/l2IGoaWql64 Output from process: ERROR: deadlock detected DETAIL: Process 5883 waits for ShareLock on transaction 574; blocked by process 5791. Process 5791 waits for ShareLock on transaction 573; blocked by process 5883. HINT: See server log for query details. CONTEXT: while updating tuple (0,20) in relation "t" === create table t (i int, n int); insert into t values(1,10),(2,20); === A select * from t; begin; update t set n=n+1 where i=1; B begin; update t set n=n+1 where i=2; update t set n=n+1 where i=1; A update t set n=n+1 where i=1; B commit; A commit;
Views: 182 chlordk
Oracle, Find Failed Queries
 
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It is very difficult to find failed queries executed by Entity Framework. Use following plsql trigger to find quries CREATE TABLE QUERY_LOG ( ID NUMBER, ORA_ERR VARCHAR2(10), EXE_DATE DATE, QRY_LOG NCLOB) / CREATE SEQUENCE QUERY_LOG_ID NOCACHE / CREATE OR REPLACE TRIGGER Failed_To_Extend_Temp AFTER SERVERERROR ON DATABASE DECLARE l_sql_text ora_name_list_t; l_n NUMBER; t1 NCLOB; BEGIN --IF (is_servererror(942) ) THEN l_n := ora_sql_txt(l_sql_text ); FOR I IN 1 .. l_n LOOP t1 := t1||l_sql_text(i); END LOOP; INSERT INTO QUERY_LOG (Id , Ora_Err , EXE_DATE , QRY_LOG) VALUES (QUERY_LOG_ID.Nextval, ora_server_error(1), Sysdate,t1 ); --END IF; END; /
Views: 53 Nivas Shelke
Toad for Oracle Schema browser how you will get the detail of database object ,log on schema
 
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Toad for Oracle Schema browser how you will get the detail of database object ,log on schema,others schema,user
Views: 8106 Abinash Sahoo
SQL Server deadlock example
 
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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: 61508 kudvenkat
Querying some V dollar views
 
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#Oracle #V$Views Querying V$ performance views
Views: 1037 Hemant K Chitale
Row Level Locking in Sql server
 
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Understanding Row level locking in Sql server.Please watch complete video for more detail.
Views: 1208 SqlIsEasy
SQLDay 2015 | DBA | From Locks to Dead-locks. Concurrency in SQL Server - Andreas Wolter
 
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In this session we take a look at essential mechanisms inside SQL Server, which influence administrators as well as developers and should be known thoroughly. Why does SQL Server have to lock objects, which effects does this have (performance and data integrity) and how we can influence these things. · can indexes prevent locking? · why is NOLOCK not a good idea when dealing with critical data? · when and what happens at Lock-Escalation? · what does table-design have to do with blocking? · why everyone should know error number 1205 – how deadlocks can occur and what can prevent them? · how is „optimistic concurrency“ implemented in SQL Server? As usual: lots of (code) demos
Views: 2907 PLSSUG
Why are Kernel parameters critical for Oracle Database
 
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Learn more about Kernel parameters with a case study. It's awesome to see how SHMMAX parameter effects a process on UNIX. Liked it? Subscribe to our channel now !!! Look at the complete blog at www.orskl.com Need training on Oracle DBA? WhatsApp to +919951696808 Training content is at www.orskl.com
Views: 4991 OrSkl Academy