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!
The definition of the classes and operation can often be adjusted to increase the amount of inheritance". Justify the above statement.
Adjustment of Inheritance
The definition of classes and operations can often be adjusted to increase amount of inheritance among the objects. The object designer can rearrange and adjust classes to increase inheritance between the different objects and classes. Sometimes same operation is defined across several classes and can easily be inherited from the common ancestor. By slightly modifying definitions of the operations or classes, the operation often could be made to match. We also can extract common behaviour out of groups of classes to increase inheritance. Similar attributes in various classes may have different names, but by giving some common name and moving them to the ancestor class we can increase inheritance. An operation may be defined on many different classes in a group but be undefined on other classes. To increase inheritance, we can define it on common ancestor class and declare it as a no-op on classes that do not care about it. We can also use the DELEGATION instead of inheritance to share only meaningful attributes among a super class and its sub class.
Define Query Processing Query processing is the process of selecting the best plan or strategy to be employed in responding to a database request. The plan is then executed to
The Form input elements are: Reporter name text type input Password
What is a shadow copy scheme? It is simple, but efficient, scheme known as the shadow copy schemes. It is based on making copies of the database called shadow copies that singl
Question: AirwaysCentre, an international airline booking company currently uses a relational database system for their operations, which includes the following relations: P
Example -Find the employee name, salary, department number and average salary of his/her department, for those employees whose salary is more than the average salary of that depart
Introduction In large projects, we can have many different companies working together. Generally, the project or contract is awarded to one company (Principal Contractor), which
to develop elrctronic database from manual forms
Mention the various user privileges All privileges directly granted to the user or role. All privileges granted to roles that have been granted to the user or role.
What does data dictionary is a special file contains ? The data dictionary is a special file contain The name of all fields in all files.The width of all fields in all files an
What is De-normalization? De-normalization is the method of attempting to optimize the performance of a database by adding redundant data. It is sometimes essential because cur
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