Question: Describe the difference between referential and table-level integrity and provide examples of related constraints in the proposed schema and how each impacts data integrity. Explain

  • Describe the difference between referential and table-level integrity and provide examples of related constraints in the proposed schema and how each impacts data integrity.
  • Explain the process and purpose of normalization and denormalization provide a synthesis of E.F. Codd's theory of normalization.
  • Describe the difference between first, second, and third normal forms and how each limits specific anomalies from being introduced into the schema.
  • Explain the meaning of the acronym ACID (atomicity, consistency, isolation, and durability) as it relates to database integrity and validity.
  • Review and revise your entity-relationship diagram (ERD) from Week 2 and embed the revised ERD in your paper. Describe what changes were made to ensure the diagram is at 3rd normal form.
  • Justify your database design by providing a detailed description for each table that demonstrates that it is in third normal form (3NF) by showing that constraints have been tested.
  • Describe the implications for data integrity in not making necessary changes to the entity-relationship diagram to bring it to 3NF.

Step by Step Solution

There are 3 Steps involved in it

1 Expert Approved Answer
Step: 1 Unlock blur-text-image
Question Has Been Solved by an Expert!

Get step-by-step solutions from verified subject matter experts

Step: 2 Unlock
Step: 3 Unlock

Students Have Also Explored These Related Databases Questions!

Q:

Q1. You have identified a market opportunity for home media players that would cater for older members of the population. Many older people have difficulty in understanding the operating principles...

Q:

Microkernel operating systems aim to address perceived modularity and reliability issues in traditional "monolithic" operating systems. (i) Describe the typical architecture of a microkernel...

Q:

4 Comparative Programming Languages illustrating your answer by explaining the meaning of the following fragment of code: [self isAwake] whileTrue: [| item | item := self askForCookie. (self...

Q:

Find the deflection y(x) of a cantilever beam embedded at its left end and free at its right end when the load is as given in Example 10.

Q:

Perform a Traceroute between source and destination on the same continent at three different hours of the Jay. a. Find the average and standard deviation of the round-trip delays at each of the three...

Q:

2 Why do you think advertising alone was not considered sufficient for the brand launch? In the same way that Scotland has a national spirit in whisky, and Russia in vodka, Brazil has cachaca...

Q:

Determine the overall sample size required so that a 95% confidence interval for the difference of two proportions (i.e., ????????????????) will have a margin of error of???????? = 0.03 when (a) ????...

Q:

During the year, Thompson Plastics was in negotiations with the local union over wages. A settlement was finally reached, and the average wage per hour was increased to $32. Production fell to...

Q:

1.) Assume your client believes in the strong-form of market efficiency as it relates to security selection, what portfolio substitution(s) would you make to your optimal risky portfolio? No...

Q:

Snowball, Inc. makes snowboards, which it sells to Ronnie's Sports Store. Ronnie's Sports Store sells Snowball snowboards to consumers, including Ed. Ed is injured while using the snowboard. In a...

Q:

Which of the following groups have the higher level of happiness? Group of answer choices Societies with high power distance rankings and elative disadvantage within the reference group Countries in...

Q:

Help Desk Layout Using the internet, research help desk layouts. What types of novel layouts (i.e., not standard cubicles)? Which of these layouts would you prefer to work in?

Q:

ABN Amro Bank, Amsterdam, wants to purchase Rs.15 m against $ for funding their Vostro account with Canara Bank, New Delhi. Assuming the inter bank, rates of $ is 51.3625 - 3700, what would be the...

Q:

Operating expenses would include O interest expense. O income tax expense. O freight-out. O freight-out and interest.

Q:

Question 9 12 pts Each year about 1500 students take the Introductory statistics course at a large university. This year scores on the final exam are distributed with a median of 74 points, a mean of...

Q:

Solve 2 cos(x) - 3 cos(x) + 1 = 0 for all solutions 0 Answered: 1 week ago

Q:

Certain balance sheet accounts of a foreign subsidiary of the Tulip Co. had been stated in U.S. dollars as follows: Current Rates Historical Rates Receivables current Recelvables - noncurrent Prepaid...

Q:

(a) What is the focal length of a magnifying glass that gives an angular magnification of 8.0 when the image is at infinity? (b) How far must the object be from the lens?

Q:

Add the SeqSearch function to the arrays.js library file, then create a Web page named seq.html that utilizes the SeqSearch function to perform sequential searches on user input. The page should...

Q:

What is a Web server, and what role does it play in the World Wide Web?

Q:

Consider a variation on the code in Figure 15.5, in which the string concatenation inside the while loop is reversed: str = foobar; i = str.search(/[aeiou]/); while (i != -1) {str = str.substring(0,...

Q:

You are given two paired samples with the following information: Item Sample 1 Sample 2 1 19.6 21.3 2 22.1 17.4 3 19.5 19.0 4 20.0 21.2 5 21.5 20.1 6 20.2 23.5 7 17.9 18.9 8 23.0 22.4 9 12.5 14.3 10...

Q:

Consider the following data for two paired samples: Case # Sample 1 Sample 2 1 258 304 2 197 190 3 400 500 4 350 340 5 237 250 6 400 358 7 370 390 8 130 100 a. Test the following null and alternative...

Q:

For each of the following tests, determine which of the two U statistics (U1 or U2) you would choose, the appropriate test statistic, and the rejection region for the MannWhitney test: A a. HM,...