This video is a free video tutorial on how to commit or rollback in a pl/sql trigger, it demonstrates the use of pragma autonomous_transaction and commit in a trigger, also it shows various scenarios which would lead to misleading data and exceptions that would be raised if pragma autonomous_transaction is not properly used in the trigger.
Views: 3563 Kishan Mashru
What is Autonomous transaction in Oracle. This is very frequently asking question in Interview. Hello Friend, in this Video You can learn how we can give the answer of Autonomous Transactions. An autonomous transaction is available from Oracle 8i. It is a very cool, useful, unique and powerful feature in oracle. An autonomous transaction is an independent transaction that is initiated by another transaction. It must contain at least one Structured Query Language (SQL) statement. When an autonomous transaction is called, the original transaction (calling transaction) is temporarily suspended. The autonomous transaction must commit or roll back before it returns control to the calling transaction. Once changes have been made by an autonomous transaction, those changes are visible to other transactions in the database. Autonomous transactions can be nested. For use Autonomous Transactions feature in program we have to use PRAGMA AUTONOMOUS_TRANSACTION Key word in Program When to use Autonomous Transactions? • Logging mechanism you need to log an error to your database log table. On the other hand, you need to roll back your core transaction because of the error. And you don't want to roll back over other log entries. • Commits and rollbacks in your database triggers If you define a trigger as an autonomous transaction, then you can commit and/or roll back in that code. • Software usage meter You want to keep track of how often a program is called during an application session. This information is not dependent on, and cannot affect, the transaction being processed in the application. Mutation Error Using autonomous transaction we can avoid mutation error. IF you want to share with your friend this video you can copy below block of text with link and past your friend group. ----------------------------------------------------------------------------- What is autonomous transaction in Oracle This is a very frequently ask Question in Interview Please Share this video with your friends and Oracle groups and communities. https://www.youtube.com/watch?v=gyvFajpfoWE ----------------------------------------------------------------------------- For More video's you can use blow link. https://www.youtube.com/user/rameshwargupta1/videos Join With us our Facebook Group for PLSQL Interview Q/A https://www.facebook.com/groups/146487615764170/ Join our Blogs http://oracletemple.blogspot.in/ Watch More... What is Parameterized Cursor in Oracle https://www.youtube.com/watch?v=JMKwHlVi6-A What is autonomous transaction in Oracle. https://www.youtube.com/watch?v=gyvFajpfoWE What are Constraints available in Oracle. https://www.youtube.com/watch?v=WivhdLXQklQ What is Mutation Error and How to avoid mutation. https://www.youtube.com/watch?v=CbWNCyW18Bs 5 Effective way to delete Duplicate rows https://www.youtube.com/watch?v=1wtTtnc87Oc What is Difference between Delete and Truncate https://www.youtube.com/watch?v=7b6wQ3Qumgg
Views: 14636 Ram Gupta
PL/SQL Tutorial: What is Mutating Table Error in Triggers What is Mutating Table Error? OR What is Mutating Trigger Error? SQL Tutorial SQL Tutorial for beginners PLSQL Tutorial PLSQL Tutorial for beginners PL/SQL Tutorial PL SQL Tutorial PL SQL Tutorial for beginners PL/SQL Tutorial for beginners Oracle SQL Tutorial
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You load data into your database tables with an insert statement. In this episode Chris discusses how to use single and multirow inserts and their pros and cons. He also covers how to persist your changes to the database with commit. See the full syntax for insert in the SQL reference guide: http://docs.oracle.com/database/122/SQLRF/INSERT.htm#SQLRF01604 Take the Databases for Developers FREE SQL course at https://devgym.oracle.com/devgym/database-for-developers.html Need help with SQL? Ask us over on AskTOM: https://asktom.oracle.com Twitter: https://twitter.com/ChrisRSaxon Daily SQL Twitter tips: https://twitter.com/SQLDaily All Things SQL blog: https://blogs.oracle.com/sql/ ============================ The Magic of SQL with Chris Saxon 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: 6010 The Magic of SQL
How do you know which conflicts are useful and which are counter-productive? Follow this simple formula and you’ll find out! Conflict is an unavoidable part of our lives, whether we’re CEOs, entrepreneurs, parents, spouses, engineers or ditch diggers. In some cases, conflict stimulates us to accomplish great things. It can also drag us off course, eroding our relationships, stalling our careers and keeping us from becoming the people we want to become. So which conflicts are useful and which are counter-productive? As an executive coach, I’ve been helping successful leaders achieve positive, lasting change in behavior for more than 35 years. My experience with great leaders has led me to develop a simple formulation, one that can help you avoid pointless skirmishes and help you take on the challenges that really matter. Follow it, and you will dramatically shrink your daily volume of stress, unpleasant debate and wasted time. I phrase it as a question: AM I WILLING AT THIS TIME TO MAKE THE INVESTMENT REQUIRED TO MAKE A POSITIVE DIFFERENCE ON THIS TOPIC? It pops into my head so often each day that I’ve turned the first five words into an acronym, AIWATT (which I find appropriately rhymes with Say What?). AIWATT doesn’t require you to do anything, it merely helps you avoid doing something you’ll regret. Please check out The Marshall Goldsmith Thinkers50 Video Blog which will be posted once a week for the next 50 weeks! It will incorporate learnings from What Got You Here Won't Get You There, MOJO, Coaching for Leadership, and Succession: Are You Ready? as well as Marshall’s newest book Triggers (to be published by Crown in 2015). On November 2013, Marshall was recognized again as one of the top ten Most Influential Business Thinkers in the World – and the top-ranked executive coach – at the biennial Thinkers50 Award ceremony in London. More about Marshall at www.marshallgoldsmith.com.
Views: 6486 Marshall Goldsmith
How to insert or update a view using instead of trigger in Oracle. Starting from creating view, creating instead of trigger on that view and updating base table inside the view a complete Sql Tutorial / PL Sql Tutorial to understand the functionality of instead of.
Views: 5757 Subhroneel Ganguly
PL/SQL Tutorial: What is Instead of Trigger in PLSQL SQL Tutorial SQL Tutorial for beginners PLSQL Tutorial PLSQL Tutorial for beginners PL/SQL Tutorial PL SQL Tutorial PL SQL Tutorial for beginners PL/SQL Tutorial for beginners Oracle SQL Tutorial
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Creating Triggers in oracle Learn Oracle PLSQL EXAM 1Z0-144
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Learn Oracle PLSQL Creating Triggers in oracle Compound triggers in oracle EXAM 1Z0-144
Views: 674 khaled alkhudari
Oracle pl sql interview questions 1.What are the types of DML triggers? 2.What is the order of execution of trigger if there is more than one trigger exits? Click here to subscribe to my youtube channel http://www.youtube.com/channel/UCBt6VrxAIb5jLh9HLDcdwtQ?sub_confirmation=1 Oracle Interview questions and Answers at https://www.youtube.com/playlist?list=PLb1qVSx1k1Vr0v4wVyvT3GEuA0J0M4xBm Oracle 18C New features at https://www.youtube.com/playlist?list=PLb1qVSx1k1Vqe06V1tIBcvnslMPWX69bW Oracle 12C New features at https://www.youtube.com/playlist?list=PLb1qVSx1k1VqM1u2IHWzZIgziqejl6wx- Oracle PLSQL records and collections at https://www.youtube.com/playlist?list=PLb1qVSx1k1VpAFTXopXvAh_D3PLcTntdm
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Creating Triggers in oracle Database Events Triggers in oracle Learn Oracle PLSQL EXAM 1Z0-144
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Oracle DBA Justin - How to create a trigger which fires when a user logs off of an Oracle database
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In this tutorial, you'll learn... 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). 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, 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. 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, 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, CEITON MSSQL/Oracle Compiler  and SwisSQL. 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: 14699 radhikaravikumar
ddl trigger example ddl trigger example in sql server ddl triggers can be used to In this video we will discuss DDL Triggers in sql server. In SQL Server there are 4 types of triggers 1. DML Triggers - Data Manipulation Language. Discussed in Parts 43 to 47 of SQL Server Tutorial. 2. DDL Triggers - Data Definition Language 3. CLR triggers - Common Language Runtime 4. Logon triggers What are DDL triggers DDL triggers fire in response to DDL events - CREATE, ALTER, and DROP (Table, Function, Index, Stored Procedure etc...). For the list of all DDL events please visit https://msdn.microsoft.com/en-us/library/bb522542.aspx Certain system stored procedures that perform DDL-like operations can also fire DDL triggers. Example - sp_rename system stored procedure What is the use of DDL triggers If you want to execute some code in response to a specific DDL event To prevent certain changes to your database schema Audit the changes that the users are making to the database structure Syntax for creating DDL trigger CREATE TRIGGER [Trigger_Name] ON [Scope (Server|Database)] FOR [EventType1, EventType2, EventType3, ...], AS BEGIN -- Trigger Body END DDL triggers scope : DDL triggers can be created in a specific database or at the server level. The following trigger will fire in response to CREATE_TABLE DDL event. Use SampleDB Go CREATE TRIGGER trMyFirstTrigger ON Database FOR CREATE_TABLE AS BEGIN Print 'New table created' END To check if the trigger has been created 1. In the Object Explorer window, expand the SampleDB database by clicking on the plus symbol. 2. Expand Programmability folder 3. Expand Database Triggers folder Please note : If you can't find the trigger that you just created, make sure to refresh the Database Triggers folder. When you execute the following code to create the table, the trigger will automatically fire and will print the message - New table created Create Table Test (Id int) The above trigger will be fired only for one DDL event CREATE_TABLE. If you want this trigger to be fired for multiple events, for example when you alter or drop a table, then separate the events using a comma as shown below. ALTER TRIGGER trMyFirstTrigger ON Database FOR CREATE_TABLE, ALTER_TABLE, DROP_TABLE AS BEGIN Print 'A table has just been created, modified or deleted' END Now if you create, alter or drop a table, the trigger will fire automatically and you will get the message - A table has just been created, modified or deleted. The 2 DDL triggers above execute some code in response to DDL events (CREATE_TABLE, ALTER_TABLE, DROP_TABLE). Now let us look at an example of how to prevent users from creating, altering or dropping tables. To do this modify the trigger as shown below. ALTER TRIGGER trMyFirstTrigger ON Database FOR CREATE_TABLE, ALTER_TABLE, DROP_TABLE AS BEGIN Rollback Print 'You cannot create, alter or drop a table' END To be able to create, alter or drop a table, you either have to disable or delete the trigger. To disable trigger 1. Right click on the trigger in object explorer and select "Disable" from the context menu 2. You can also disable the trigger using the following T-SQL command DISABLE TRIGGER trMyFirstTrigger ON DATABASE To enable trigger 1. Right click on the trigger in object explorer and select "Enable" from the context menu 2. You can also enable the trigger using the following T-SQL command ENABLE TRIGGER trMyFirstTrigger ON DATABASE To drop trigger 1. Right click on the trigger in object explorer and select "Delete" from the context menu 2. You can also drop the trigger using the following T-SQL command DROP TRIGGER trMyFirstTrigger ON DATABASE Certain system stored procedures that perform DDL-like operations can also fire DDL triggers. The following trigger will be fired when ever you rename a database object using sp_rename system stored procedure. CREATE TRIGGER trRenameTable ON DATABASE FOR RENAME AS BEGIN Print 'You just renamed something' END The following code changes the name of the TestTable to NewTestTable. When this code is executed, it will fire the trigger trRenameTable sp_rename 'TestTable', 'NewTestTable' The following code changes the name of the Id column in NewTestTable to NewId. When this code is executed, it will fire the trigger trRenameTable sp_rename 'NewTestTable.Id' , 'NewId', 'column' Text version of the video http://csharp-video-tutorials.blogspot.com/2015/09/ddl-triggers-in-sql-server.html Slides http://csharp-video-tutorials.blogspot.com/2015/09/ddl-triggers-in-sql-server_9.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
Views: 62634 kudvenkat
After watching this video you can get clear understanding about Mutation error and how we can avoid mutation in program. Below is link for Useful Pl/SQL Books http://goo.gl/XMy0tt Watch More... What is Parameterized Cursor in Oracle https://www.youtube.com/watch?v=JMKwHlVi6-A What is autonomous transaction in Oracle. https://www.youtube.com/watch?v=gyvFajpfoWE What are Constraints available in Oracle. https://www.youtube.com/watch?v=WivhdLXQklQ What is Mutation Error and How to avoid mutation. https://www.youtube.com/watch?v=CbWNCyW18Bs 5 Effective way to delete Duplicate rows https://www.youtube.com/watch?v=1wtTtnc87Oc What is Difference between Delete and Truncate https://www.youtube.com/watch?v=7b6wQ3Qumgg
Views: 16419 Ram Gupta
PART1 1-ROLLBACK 2-SAVE POINT 3-ROLLBACK TO AN SAVE POINT 4-COMMIT 5-SET TRANSACTION PART2 6-GRANT 7-DEADLOCK .....BY YASSIR TAQATQA بواسطة ياسر طقاطقة
Views: 3581 Yassir Taqatqa
Oracle tutorial : Autonomous Transactions in Oracle 11g PL SQL-PRAGMA What is pragma autonomous_transaction An autonomous transaction is an independent transaction to the main or parent transaction. If an Autonomous transaction is started by another transaction it is not nested, but independent of parent transaction. PRAGMA autonomous_transaction 1)In Oracle session, all of the changes made to data are part of a single transaction. 2)An autonomous transaction is an independent transaction started within another transaction (the main transaction). 3)Autonomous transactions allow you to temporarily suspend the main transaction, perform additional SQL operations, commit or rollback those operations separately, then resume the main transaction. 4)To define an autonomous transaction, we can use a PRAGMA statement PRAGMA AUTONOMOUS_TRANSACTION; CREATE TABLE log_data ( empno NUMBER(6), userid VARCHAR2(30), create_date DATE ); CREATE OR REPLACE TRIGGER add_log BEFORE INSERT OR UPDATE ON employee FOR EACH ROW DECLARE PRAGMA AUTONOMOUS_TRANSACTION; — This statement made this autonomous this trigger BEGIN INSERT INTO log_data VALUES (:new.id, USER, SYSDATE); COMMIT; END; / Insert into EMPLOYEE (ID, NAME, CITY, SALARY, DEPT_NO) Values (20, ‘MY Tech Query’, ‘Mumbai’, 20000, 1) ROLLBACK; SELECT * FROM EMPLOYEE SELECT * FROM LOG_DATA https://www.youtube.com/channel/UCpiyAesWNYOXSz5GPq8lbkA For more tutorial please visit #techquerypond https://techquerypond.com https://techquerypond.wordpress.com https://twitter.com/techquerypond oracle transaction pragma autonomous_transaction
Views: 2617 Tech Query Pond
Oracle SQL PLSQL and Unix Shell Scripting
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by Mohamed El Desouki - محمد الدسوقى [email protected] Tel :00966 553450836 جامعة سلمان بن عبد العزيز - السعودية - الخرج Database 2 - Oracle PL/SQL Triggers in Arabic Text Book: Fundamentals of Database Systems, 5th Edition, by Elmasri/Navathe, published by Addison-W
Views: 20831 محمد الدسوقى
DURGASOFT is INDIA's No.1 Software Training Center offers online training on various technologies like JAVA, .NET , ANDROID,HADOOP,TESTING TOOLS ,ADF,INFORMATICA,TABLEAU,IPHONE,OBIEE,ANJULAR JS, SAP... courses from Hyderabad & Bangalore -India with Real Time Experts. Mail us your requirements to [email protected] so that our Supporting Team will arrange Demo Sessions. Ph:Call +91-8885252627,+91-7207212428,+91-7207212427,+91-8096969696. http://durgasoft.com http://durgasoftonlinetraining.com https://www.facebook.com/durgasoftware http://durgajobs.com https://www.facebook.com/durgajobsinfo......
Views: 3951 Durga Software Solutions
Oracle SQL Developer Tutorial For Beginners Series. This course introduces Oracle SQL Development for its subscribers. Currently this is based on Oracle 12c. The test environment is in Windows 10.
Views: 2271 Sam Dhanasekaran
How to update read only views using Instead of Triggers For Full Course Experience Please Go To http://mentorsnet.org/course_preview?course_id=5 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: 7626 Oresoft LWC
DURGASOFT is INDIA's No.1 Software Training Center offers online training on various technologies like JAVA, .NET , ANDROID,HADOOP,TESTING TOOLS ,ADF,INFORMATICA,TABLEAU,IPHONE,OBIEE,ANJULAR JS, SAP... courses from Hyderabad & Bangalore -India with Real Time Experts. Mail us your requirements to [email protected] so that our Supporting Team will arrange Demo Sessions. Ph:Call +91-8885252627,+91-7207212428,+91-7207212427,+91-8096969696. http://durgasoft.com http://durgasoftonline.com http://durgasoftonlinetraining.com https://www.facebook.com/durgasoftware http://durgajobs.com https://www.facebook.com/durgajobsinfo......
Views: 2566 Durga Software Solutions
How to create a trigger which fires when the Oracle database starts up.
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SQL TCL Transaction Control Language,COMMIT, ROLLBACK, SAVEPOINT SQL Tutorial SQL Tutorial for beginners Oracle SQL Tutorial for beginners
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Oracle Hints Tutorial for improving performance APPEND PARALLEL JOIN INDEX NO_INDEX SELECT /*+ FIRST_ROWS(10) */ * FROM emp WHERE deptno = 10; SELECT /*+ ALL_ROWS */ * FROM emp WHERE deptno = 10; SELECT /*+ NO_INDEX(emp emp_dept_idx) */ * FROM emp, dept WHERE emp.deptno = dept.deptno; SELECT /*+ INDEX(e,emp_dept_idx) */ * FROM emp e WHERE e.deptno = 10; -- SELECT /*+ INDEX(scott.emp,emp_dept_idx) */ * FROM scott.emp; SELECT /*+ AND_EQUAL(e,emp_dept_idx) */ * FROM emp e; SELECT /*+ INDEX_JOIN(e,emp_dept_idx) */ * FROM emp e; SELECT /*+ PARALLEL_INDEX(e,emp_dept_idx , 8) */ * FROM emp e; SELECT /*+ LEADING (dept) */ * FROM emp, dept WHERE emp.deptno = dept.deptno; SELECT /*+ PARALLEL(8) CACHE (e) FULL (e) */ * FROM emp e ; SELECT /*+ PARALLEL FULL (e) */ * FROM emp e ; SELECT /*+ PARALLEL USE_MERGE (emp dept) */ * FROM emp, dept WHERE emp.deptno = dept.deptno; -- SORT Merge Join SELECT /*+ PARALLEL USE_HASH (emp dept) */ * FROM emp, dept WHERE emp.deptno = dept.deptno; -- Hash Join SELECT /*+ PARALLEL */ * FROM emp e ; INSERT /*+ APPEND */ INTO mytmp select /*+ CACHE (e) */ *from emp e; commit;
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How to create a trigger which fires when a user logs on to an Oracle database
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