Display how records can be deleted and updated in qbe, Database Management System

Assignment Help:

With the help of an example display how records can be deleted and updated in QBE.
(i) Increase Pay_Rate of employees along with the skill of ‘cook' by 10%.
(ii) Delete employee record for EMP# 123459

Ans: (i)
EMPLOYEE Emp# Name Skill Pay_Rate
EX Cook PX
U. EX PX * 1.1
(ii)
EMPLOYEE Emp# Name Skill Pay_Rate
D. 123459

Related Discussions:- Display how records can be deleted and updated in qbe

Design a gennalization and specialization hierarchy for an a, Design a genn...

Design a gennalization and specialization hierarchy for an automobile sales company

Multivalued attributes, For every multivalued attribute 'A', we make a new ...

For every multivalued attribute 'A', we make a new relation R that contains an attribute corresponding to plus the primary key attribute k of the relation that shows the entity typ

ERD, entity relationship diagram about finance

entity relationship diagram about finance

Finkelstein methodology, PART MARKING: For this section, we will use part m...

PART MARKING: For this section, we will use part marking. This means we will supply model answers to all questions but we will only mark six questions. We will choose these randoml

Explain foreign key, Explain Foreign Key? Foreign Key - Let there are...

Explain Foreign Key? Foreign Key - Let there are two relations (tables) R and S. Any candidate key of the relation R that is referred within the relation S is known as the fo

Difference between clustered and a non-clustered index, What are the differ...

What are the difference between clustered and a non-clustered index? A clustered index is a special type of index that reorders the way records in the table are physically stor

Explain what is to be done during defining problem statement, Briefly expla...

Briefly explain what is to be done during defining problem statement. To define Problem Statement of a system, define what is to be done and how you can go to implement that. Y

What is equi join, What is equi join? Equi Join - It generates all th...

What is equi join? Equi Join - It generates all the combinations of tuples from two relations which satisfy a join condition along with only equality comparison (=).

Example database application, We will explain here an example database appl...

We will explain here an example database application having COLLEGE database and use it in showing several E-R modelling concepts. College database remains track of faculty, Stu

What are composite attributes, What are composite attributes? Composite...

What are composite attributes? Composite attributes can be separated in to sub parts.

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages