Already have an account? Get multiple benefits of using own account!
Login in your account..!
Remember me
Don't have an account? Create your account in less than a minutes,
Forgot password? how can I recover my password now!
Enter right registered email to receive password!
Explain Deadlock detection and recovery
Deadlock Detection - A deadlock is said to take place when there is a circular chain of transaction, every waiting for the release of a data - item held by the next transaction in the chain, the algorithm to detect a deadlock is relies on the detection of such type of a circular chain in the current system in wait - for - graph. The algorithm produces the wait - for - graph at regular intervals and observes it for a chain. The algorithm begins with the assumption that there is no deadlock.
Deadlock Recovery - To recover from deadlock. The cycles in the wait - for - graph should be broken. The general method of doing this is to roll back one or much more transactions in the cycles till the system shows no further deadlock situation. The procedure of deadlock recovery must make sure that a given transaction is not constantly the one chosen for rollback. The selection of the transaction to be rolled back is relies on the following considerations:
Fundamentals of Database Management 1. Explain the concept of Foreign Key. How a foreign key differs from a Primary Key? Can the Foreign Key accept nulls? 2. With a necess
Explain the Exec statement in SQL Ans: Exec statement has the structure EXEC SQL END-EXEC Embeded SQl statements are of a form identical to non embedded SQL statem
Benefits of Hashed file Organisation 1. Insertion or search on hash-key is quick. 2. Best if equality search is required on hash-key. Drawbacks of Hashed file
Which language used in application programs to request data from the DBMS is referred? Language which is used in application program is DML to request data from the DBMS is ref
What is the used of specifying alias? Specifying alias: is used to rename column or attribute in a table.
Explain the uses of deadlock It will lead to deadlock since this is the only place where incoming acknowledgements are processed. Without this code, sender will keep timing ou
Produce a set of relations (equivalent to the Finkelstein entity list) in third normal form (3NF) from the following un-normalised relation. You must use the Finkelstein methodolog
complete er diagram of textile industry management
Project Description: Hi I'm seeking someone to make my dBase application work. I know it's not a 'modern' language but it's what I know. I have written an order program and I ne
Distributed Database Management System
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!
whatsapp: +1-415-670-9521
Phone: +1-415-670-9521
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd