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 Dynamic Two-Phase Locking
Here a transaction locks a data item instantly earlier than any operation is applied on the data item. After finishing all the operations on all the data items, it releases all the locks. An instance of dynamic 2PL is as following
X(X)
Read (X)
X=X+M
Write (X)
X (Y)
Read (Y)
Y=Y+N
Write Y
Unlock (Y)
Unlock (X)
File Organisation In Dbms Introduction Databases are used to store information. Usually, the principal operations we have to perform on database are those relating to:
Write a query that display ename annual salary and comm from emp table
The database will enable college administrators the ability to track students initial major. This will help college officials decide how best to prepare students for their goals an
entity relationship diagram about finance
Why Like predicate used for? LIKE predicate: The LIKE predicate searches for strings in which have a certain pattern.
Advantages And Drawbacks Of Ddbms There are various reasons for building distributed database systems, with sharing of data, reliability and availability, and speedup of query
Explain the steps for reduction of E-R model into relational model. Ans:(a) Entity set in E-R model will be considered as table name in relational Model. (b) Attributes of e
what is primary key
Question 1 List and explain various Normal Forms. How BCNF differs from the Third Normal Form and 4th Normal forms? Question 2 Describe the concepts of Structural Semantic Da
Aggregate functions Some of these functions are min, count, max, and avg. These functions help in getting consolidated information from a set of tuples. Example:
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: +91-977-207-8620
Phone: +91-977-207-8620
Email: [email protected]
All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd