Answered step by step
Verified Expert Solution
Link Copied!

Question

1 Approved Answer

When describing relational tables use this format for the schema of the relation: Table Name ( Primary Key, Field, Field, Field * ) where the

When describing relational tables use this format for the schema of the relation: Table Name
(Primary Key, Field, Field, Field*) where the primary key field(s) is(are) underlined and an asterisk
indicates any foreign key. Each of these problems is independent of the others.
1. CONSIDER THE FOLLOWING DATABASE:
MANAGER-INFO (MGR-ID, MGR-NAME, OFFICE#, TELEPHONE#, PROJECT#, PROJECT-NAME)
Each manager has an office and there is only one manager in an office. An office has one phone and
each phone serves only one office. One manager can have more than one project, but there is only one
manager per project.
1. Describe one insert anomaly caused by this database design. [Be VERY specific, i.e.X data cant
be added without first adding Y data]
2. Describe one delete anomaly caused by this database design. [Be VERY specific, i.e.When X
data is deleted, Y data may also be lost.]
3. In which normal form is this database (3NF,2NF,1NF or unnormalized)?
4. Describe the lowest normal form violation and the field(s) involved. [Normal form violations are
repeating groups, partial dependencies, or transitive dependencies. Be very specific about
which field repeats, or which field is partially or transitively dependent on which other field.]
5. If this database is not 3NF, provide a solution schema that is 3NF.

Step by Step Solution

There are 3 Steps involved in it

Step: 1

blur-text-image

Get Instant Access to Expert-Tailored Solutions

See step-by-step solutions with expert insights and AI powered tools for academic success

Step: 2

blur-text-image

Step: 3

blur-text-image

Ace Your Homework with AI

Get the answers you need in no time with our AI-driven, step-by-step assistance

Get Started

Recommended Textbook for

More Books

Students also viewed these Databases questions

Question

What is the Definition for Third Normal Form?

Answered: 1 week ago

Question

Provide two examples of a One-To-Many relationship.

Answered: 1 week ago