Controlling autonomous transactions, PL-SQL Programming

Assignment Help:

Controlling Autonomous Transactions

The first SQL statement in an autonomous routine starts a transaction. Whenever one transaction ends, the next SQL statement starts the other transaction. All the SQL statements executed as the last commit or rollback make up the present transaction. To control the autonomous transactions, use the statements shown below, that apply only to the present (active) transaction:

(i)COMMIT

(ii)ROLLBACK [TO savepoint_name]

(iii)SAVEPOINT savepoint_name

(iv)SET TRANSACTION

The COMMIT ends the present transaction and makes the permanent changes made during that transaction. The ROLLBACK ends the present transactions and undoes the changes made during that transaction. The ROLLBACK TO undo part of a transaction. The SAVEPOINT names and marks the present point in a transaction. The SET TRANSACTION sets the transaction properties like read/write access and isolation level.


Related Discussions:- Controlling autonomous transactions

Autonomous versus nested transactions, Autonomous versus Nested Transaction...

Autonomous versus Nested Transactions Though an autonomous transaction is started by the other transaction, it is not a nested transaction for the reasons shown below: (i)

Calculating a Shopper''s Total Spending, Many of the reports generated from...

Many of the reports generated from the system calculate the total dollars in a shopper''s purchases. Follow these steps to create a function named TOT_PURCH_SF that accepts a shopp

Primary key, PRIMARY KEY: PRIMARY KEY  indicates that the table is sub...

PRIMARY KEY: PRIMARY KEY  indicates that the table is subject to a key constraint, in this case declaring that no two rows in the table assigned to ENROLMENT can ever have the

Example of groupby operator - sql, Example of GROUPBY Operator Example...

Example of GROUPBY Operator Example: How many students sat each exam, using GROUP BY, NATURAL LEFT JOIN, and COALESCE SELECT CourseId, COALESCE (n, 0) AS n FROM COURS

Keyword and parameter description - delete statement, Keyword and Parameter...

Keyword and Parameter Description: table_reference: This specifies a table or view that should be accessible when you execute the DELETE statement, and for that you must

Best practices/Data Warhousing, What are 3 good practices of modeling and/o...

What are 3 good practices of modeling and/or implementing data warehouses?

Using bulk collect clause- bulk bind performance improvement, Using the BUL...

Using the BULK COLLECT Clause The keywords BULK COLLECT specify the SQL engine to bulk-bind output collections before returning them to the PL/SQL engine. You can use these ke

Recursion versus iteration, Recursion versus Iteration Dissimilar the i...

Recursion versus Iteration Dissimilar the iteration, recursion is not crucial to PL/SQL programming. Any problem which can be solved using recursion can be solving using the it

Application to export excel data to mssql server table, Application to Expo...

Application to Export Excel Data to MSSQL Server table I am having a table available in excel format and features the subsequent: - Some text is in Arabic (e.g. UTF-8 encodin

Cursor variables as parameters, Cursor Variables As Parameters You can...

Cursor Variables As Parameters You can declare the cursor variables as the formal parameters of the functions and procedures. In the illustration below, you define the REF CUR

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd