1) Which of the following is not a recovery technique? A. Deferred update B. Immediate update C. Two-phase commit D. Recovery management 2)C...
Showing posts with label Database Management System. Show all posts
Showing posts with label Database Management System. Show all posts
Thursday, December 11, 2014
Wednesday, December 10, 2014
1) Commit and rollback are related to .......... A. data integrity B. data consistency C. data sharing D. data security 2) The transaction w...
Tuesday, December 9, 2014
1) A mechanism which ensures that simultaneous execution of more than one transaction does not lead to any database inconsistencies is calle...
Monday, December 8, 2014
1) In the ............, one transaction inserts a row in the table while the other transaction is half way through its browsing of table. A....
1) If the transaction is rolled back, all the database changes made inside the transaction are ...... A. made permanent B. made temporary C....
Sunday, December 7, 2014
1) Which of the following is not a characteristic of a relational database model? A. Table B. Tree like structure C. Complex logical relatio...
Saturday, December 6, 2014
1) ......keyword is used to eliminate the duplicates. A. distinct B. unique C. union D. intersect 2) ..........is a query that has another q...
Thursday, December 4, 2014
1) What is a data integrity? A. It is the data contained in database that is non redundant. B. It is the data contained in database that is ...
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