DATABASE SYSTEMS What is a key and how is it important in a relational model?

Fantastic news! We've Found the answer you've been seeking!

Question:

DATABASE SYSTEMS

What is a key and how is it important in a relational model?

Related Book For answer-question

Accounting Information System

ISBN: 9781439078570

7th Edition

Authors: James A. Hall

See More Books

Posted Date: Mar 31, 2024 03:45 AM

See More Questions

Do some amendment and enhance the given research paper: Table of Content Abstract..3 Action Research.4 Research Methodology and Design...5 Literature Review: NoSQL Database7 Proposal.7 Iteration 1..8...
Let A, B be sets. Define: (a) the Cartesian product (A B) (b) the set of relations R between A and B (c) the identity relation A on the set A [3 marks] Suppose S, T are relations between A and B, and...
Portray in words what transforms you would have to make to your execution to some degree (a) to accomplish this and remark on the benefits and detriments of this thought.You are approached to compose...
On January 1, 2020, Cullumber Industries Ltd. issued 1,780,000 face value, 5%, 10-year bonds at 1,648,990. This price resulted in an effective-interest rate of 6% on the bonds. Cullumber uses the...
Bert Osborne is currently assigned as an accountant in the Payroll Department of the Bay Bridge Company. One of his duties is the processing of engineering time reports, which are used to charge...
Pam Corporation acquired 80 percent of Sun Corporation's common stock on January 1, 2016, for $840,000 cash. The stockholders' equity of Sun at this time consisted of $600,000 capital stock and...
In which part of a nephron is water reabsorbed from the filtrate? (a) glomerulus (b) proximal tubule (c) loop of Henle (d) distal tubule
So Sweet! has budgeted sales of 600,000 cans of diet iced tea mix during June 2010 and 750,000 cans during July. Production of the mix requires 14.5 ounces of tea and 1.5 ounces of sugar substitute....
A company's manufacturing process has been experiencing quality issues, leading to an average of 12 defects per 500 units produced. Using Six Sigma methodologies, the company aims to improve and...
You have been given the task of developing a trading bot. The bot will allow you to interact with your B2B customers and automatically place orders for you. However, the bot will only know once the...
Jim's Camera shop sells two high-end cameras, the Sky Eagle and Horizon. The demand for these two cameras are as follows ( D S = demand for the Sky Eagle, P s is the selling price of the Sky Eagle, D...
what is the major purpose of pharmacy assistant? What are the manage and skills to perform being a pharmacy assistant?
Identify a situation when you violated the verbal communication rules for your gender. What happened and how did you feel? What were others' reactions to your violation? make sure it is a short essay.
An experimental approach is planned with the aim to express a recombinant protein in E. coli followed by a purification step using an anti-6X His-tag antibody. However, for the protein to be used as...
What are the consequences of the logic of branding to our identities and they way we connect with others?
Do you think that if a parent is absent for a certain time in an infants life, they can make up for it, or is that attachment never going to form? I would recommend that the father spend equal amount...
Use the T account for Cash below to record the portion of each of the following transactions, if any that affect cash. How do these transactions affect the companys liquidity? Jan. 2 Provided...
Does the snowflake have rotational symmetry in Figure 1.6? If yes, describe the ways in which the flake can be rotated without changing its appearance. Does it have reflection symmetry? If yes,...
Which of the following statements are hypotheses? (a) Heavier objects fall to Earth faster than lighter ones. (b) The planet Mars is inhabited by invisible beings that are able to elude any type of...
A battery-operated wall clock no longer keeps timeneither hand moves. Develop a hypothesis explaining why it fails to work, and then make a prediction that permits you to test your hypothesis....

DATABASE SYSTEMS What is a key and how is it important in a relational model?

Question:

Expert Answer:

Accounting Information System

Students also viewed these databases questions