Explain the term - adjustment of inheritance, Database Management System

Explain the term - Adjustment of inheritance

The inheritance can be enlarged as object design progresses by changing class structure. The designer should do:

i) Adjust or rearrange classes and operations

ii) Abstract common behavior out of groups of the classes

iii) Use delegation to share the behaviour when inheritance is semantically wrong.


Posted Date: 8/29/2013 7:25:38 AM | Location : United States

Related Discussions:- Explain the term - adjustment of inheritance, Assignment Help, Ask Question on Explain the term - adjustment of inheritance, Get Answer, Expert's Help, Explain the term - adjustment of inheritance Discussions

Write discussion on Explain the term - adjustment of inheritance
Your posts are moderated
Related Questions
Retrieve the S&S In-Chapter Database (in Microsoft Access format) from the text's Web site (or create the tables in Table 4-5 in a relational DBMS product). Write queries to answer

Depending upon the rules we have found, we can classify the locks into two types. Shared Lock: A transaction might be acquiring shared lock on a data item in order to read it

Why are cursors necessary in embedded SQL? A cursor is an object used to store the output of a query for row-by-row processing through the application programs. SQL statements

To delete a particular column in a relation which command is used ? To delete a particular column in a relation ALTER command is used.

Give an example of operations from the State Actions and Activities. For instance, in bank the activity verify account code and verify password

Discuss how the bi-directional Implementations are made. In bi-directional implementation of the association, a pair of references must implement every link. The declarations a

What is difference between primary index and secondary index? Primary Index a) It is an ordered file whose records are of fixed length along with two fields. b) Only base

These are interactive interfaces, graphical that hide the difficulty of the DBMS and query language behind an intuitive, simple to understand, and convenient interface. This permit

Define the following constraints for the table client. (i) BAL_DUE must be at least 1000. (ii) NAME is a unique key. (i)ALTER TABLE CLIENT ADD CONSTRAINT CLIENT_BAL_DUE_C1

How Relational Calculus is different from Relational Algebra? What do understand by TRC queries and DRC queries?  Ans: Relational calculus contain two calculi, the tuple relati