Backward Recovery (UNDO):In this system the uncommitted changes made by a transaction to a database are undone.  Instead the system is reset to the last consistent state of database that is free from any errors.

 

               

Posted Date: 3/12/2013 5:11:00 AM | Location : United States

Ask an Expert

Related Discussions:- Backward recovery (undo), Assignment Help, Ask Question on Backward recovery (undo), Get Answer, Expert's Help, Backward recovery (undo) Discussions

Write discussion on Backward recovery (undo)
Your posts are moderated

Write your message here..

Related Questions

Identify all renters who have viewed all properties, Consider the subsequen... Consider the subsequent relations RENTER(rno, fname, lname, address, tel_no, pref_type, max_rent) VIEWING(rno, pno, date, comment) PROPERTY_FOR_RENT( pno, street, area ,city,

List the types of authorization, List the types of authorization. A) R... List the types of authorization. A) Read authorization B) Write authorization C) Update authorization D) Drop authorization

Explain the integrity constraints, Explain the integrity constraints: Not N... Explain the integrity constraints: Not Null,  Unique, Primary Key with an example each. Is the combination 'Not Null, Primary Key' a valid combination. Justify. Not Null - Shou

Case-based online phone repair, please i request for your assistance in de... please i request for your assistance in developing a case-based online phone repair

Defining internal classes and operations, Defining Internal Classes and Ope... Defining Internal Classes and Operations When we enlarge algorithms, new classes can be added to the store intermediate results. A complex operation could be looked at, as a c

Relational algebra, Consider the relation schemas as follows. works (per... Consider the relation schemas as follows. works (person name, company name, salary); lives (person name, street, city); located in(company name, city); managers (person name

Schema, difference between internal schema and external schema in DBMS difference between internal schema and external schema in DBMS

What are the types of reference, What are the types of reference?explain it... What are the types of reference?explain it with suitable examples? Object oriented language given the ability to refer the object attribute of the type can be referred to the s

Whta is the advantage of the database management approach, Whta is the adva... Whta is the advantage of the database management approach? The advantage of the database management approach is data is integrated and can be accessed by multiple programs.

Describe the statement in sql which allows to change, Describe the statemen... Describe the statement in SQL which allows to change the definition of a table? In SQL Alter statement is used to allow the changes the definition of a table.