User Account

All Pages

How you can change the above table into two-nf

Assignment Help Database Management System
Reference no: EM131479850

Assignment

Question One

Suppose you want to store the following information:

Student_id

Course

Mark

111

Maths

78

111

Physics

90

222

Biology

89

333

Physics

60

333

Chemistry

75

1.a Is this table in first normal form? Why or Why Not?

1.b Why it is not in 2NF? How you can change the above table into 2NF.

Question Two

2. Using the following relationsto write SQL statement that follows:

Product (product_name, price, category, company_name)
Company (company_name, stockPrice, country)

a- Find all products produced by USA and have a price greater than 500.

b- Find the Categories that a product might belong to. Make sure that the category is not repeated and it is listed in ascending order.

c- delete all products with that belong to SONY company.

Question Three

3.a List the three design goals for relational databases, and explain why each is desirable.

3.b What is the result of an arithmetic expression involving nulls, for instance, what 7 + null would return?

Reference no: EM131479850

Questions Cloud

Benefits of and barriers to medical tourism : Identify benefits of and barriers to medical tourism. Reflect on reasons consumers may or may not seek medical care outside of their home country.
Find differences between the gdp and gni rankings : Below is a partial table of the OECD's 2004 ranking of member countries based on their GDP per capita. Compute the ratio of GNI to GDP in each case.
Global marketing strategy-international marketing strategy : determine if you would employ a global marketing strategy or an international marketing strategy.
The physical access controls and logical access controls : Research a specific lapse in professional ethics by an IT professional in the last five (5) years. Be prepared to discuss.
How you can change the above table into two-nf : Why it is not in 2NF? How you can change above table into 2NF. What is result of arithmetic expression involving nulls for instance, what 7 + null would return?
Manufacturers high-end custom leather bags : Larry Ellison starts a company that manufacturers high-end custom leather bags.
Find the gross national income : Using this expression, show that in a closed economy, gross domestic product (GDP), gross national income (GNI), and gross national expenditures (GNE).
Analyze the input data for the inspection times : Process Modeling and Analysis in an Assembly Factory - Analyze the input data for the inspection times and fit a suitable distribution.
Describe the best practices for mitigating vulnerabilities : For Web applications, describe the best practices for mitigating vulnerabilities in order to prevent buffer overflow (BO) attacks or SQL Injections (SQI).

Reviews

Write a Review

Database Management System Questions & Answers

  Include any number of childrens names in addressbook

Explain how the problem of including any number of children's names in AddressBook can be solved by defining an additional relation that has only single-valued entries.

  How four principles of data collection support your ability

Explain how the "Four Principles of Data Collection" from Yin (2014) support your ability to address your DBA doctoral research question.

  Why data-warehousing greatest threat to individual privacy

Consider following opinion shared by some people: database management systems and data-warehousing techniques are the greatest threat to individual privacy in modern times. What is your opinion?

  Create a database of all seats and flights

Create a database of all seats and flights and keep track of sold/unsold of all 4 categories of seats - Show cost of chosen seat/flight combo options

  Elaborate further on the definition of information systems

Review some of the tools you use whether at home or school that helps turn the data we are exposed to into information for making decisions.

  Find a good explanation of cascading and use that

Cascading can be difficult to understand. Explain it in a way someone not versed in databases could understand. If you research and find a good explanation and use that, be sure to cite your source.

  To analyse a set of data and write a memo identifying and

to analyse a set of data and write a memo identifying and explaining your insights into the operation of todd

  Review of common sql server security issues and solutions

Review the following article titled "Common SQL Server Security Issues and Solutions" located at http://technet.microsoft.com/en-us/magazine/2009.05.sql.aspx

  Suggest a learning algorithm for the problem

What is required to defi ne a well-posed learning problem ?

  Implement direct-address table keys of stored elements

Suggest how to implement direct-address table in which keys of stored elements don't require to be distinct and elements can have satellite data.

  List all movies played in landmark or music box

List all movies played in Landmark or Music Box. Output only titles and eliminate duplicates. List all stars born after 1960. Order them by their birthdate in ascending order. Output their first names, last names, and birthdates.

  Expanded entity relationship model diagram

Each department has many employees assigned to it, but each employee works for only one department at one of the factories. An employee cannot work at more than one factory at a time.

Free Assignment Quote

Assured A++ Grade

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!

Submit Assignment

Academics

Major Subjects

Majors

Get In Touch

whatsapp: +1-415-670-9521

Phone: +1-415-670-9521

Email: [email protected]

TERMS & POLICIES

HELP & SUPPORT

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd