1 answer

Given the following spreadsheet EMPLOYEE2 Emp ID Name Dept Name Salary Course_Title Date Completed 100 100...

Question:

Given the following spreadsheet EMPLOYEE2 Emp ID Name Dept Name Salary Course_Title Date Completed 100 100 140 110 110 190 150 150 Margaret Simpson Margaret Simpson Alan Beeton Chris Lucero Chris Lucero Lorenzo Davis Susan Martin Susan Martin Marketing Marketing Accounting Info Systems 43,000 SPSS Info Systems 43,000 C++ Finance Marketing Marketing 48,000 SPSS 48,000 Surveys 52,000 Tax Aco 6/19/200X 10/7/200X 12/8/200X 1/12/200X 4/22/200X 55,000 42.000 SPSS 2,000Java 6/19/200X 8/12/200X If a student simply put all shown attribute into a database table EMPLOYEE2 (Emp ID, name, Dep.Name, Slary Course Title, Based on your analysis on the given data in this sheet. Answer the the following Questions B1. List all the functional dependencies (FDs.). Assuming all possible FDs are implied by the given set of data B2. What is the key of EMPLOYEE2 B3. What Normal Form (NF) this table is in? Why give your detailed explanation. You must use the definition of corresponding normal form to justify your answer B4. Describe Insert/update/delete anomalies this table may have

Given the following spreadsheet EMPLOYEE2 Emp ID Name Dept Name Salary Course_Title Date Completed 100 100 140 110 110 190 150 150 Margaret Simpson Margaret Simpson Alan Beeton Chris Lucero Chris Lucero Lorenzo Davis Susan Martin Susan Martin Marketing Marketing Accounting Info Systems 43,000 SPSS Info Systems 43,000 C++ Finance Marketing Marketing 48,000 SPSS 48,000 Surveys 52,000 Tax Aco 6/19/200X 10/7/200X 12/8/200X 1/12/200X 4/22/200X 55,000 42.000 SPSS 2,000Java 6/19/200X 8/12/200X If a student simply put all shown attribute into a database table EMPLOYEE2 (Emp ID, name, Dep.Name, Slary Course Title, Based on your analysis on the given data in this sheet. Answer the the following Questions B1. List all the functional dependencies (FDs.). Assuming all possible FDs are implied by the given set of data B2. What is the key of EMPLOYEE2 B3. What Normal Form (NF) this table is in? Why give your detailed explanation. You must use the definition of corresponding normal form to justify your answer B4. Describe Insert/update/delete anomalies this table may have

Answers

1)

FD1:

Emp ID ---> Name, Dept Name, Salary, Course_Title, Date Completed;

FD2:

Name ---> Emp ID,Name Dept Name, Salary, Course_Title, Date Completed;

2)

EMP ID is the primary key of EMPLOYEE2

3) & 4)

A table is said to be not normalised because of the in consistence.

The given table is not normalised as with the below scenarios:

Update anomaly:

If we want to update the emp Susan Martin here we have to update same in two rows which is in consistent.

Insert anomaly:

When we want to insert an emp with out knowing the dept name of him then when dept row cant allow null values then we can not update the employee table.

Delete anomaly:

when an updation of department table modified there then must be change in here also.sometimes we delete some departments that may leads to deletion of employee record also.

.

Similar Solved Questions

1 answer
Find both the exact and ordinary interest on $34,000 at 14 and one fourth% for 182...
Find both the exact and ordinary interest on $34,000 at 14 and one fourth% for 182 days. Then find the amount by which the ordinary interest is larger....
1 answer
A chemist titrates 190.0 mL of a 0.4425 M cyanic acid (HCNO) solution with 0.3359 M...
A chemist titrates 190.0 mL of a 0.4425 M cyanic acid (HCNO) solution with 0.3359 M KOH solution at 25 °C. Calculate the pH at equivalence. The pK, of cyanic acid is 3.46. Round your answer to 2 decimal places. Note for advanced students: you may assume the total volume of the solution equals th...
1 answer
IAS 38. Intangible Assets. On March 1, 2016, we obtained a patent for 7,500 euros. At...
IAS 38. Intangible Assets. On March 1, 2016, we obtained a patent for 7,500 euros. At the close of the fiscal year, on December 31, 2016, the fair value of the patent was 9,000 euros. As of December 31, 2017, the fair value of the patent stands at 8,000 euros. The criterion we use for valuation afte...
1 answer
The equilibrium constant for the chemical equation N2(g) 3 H2(g)2NH3 (g) is Kp = 0.0146 at...
The equilibrium constant for the chemical equation N2(g) 3 H2(g)2NH3 (g) is Kp = 0.0146 at 183 oC. Calculate the value of Kc for the reaction at 183 °C....
1 answer
Gragh Whe system olinar inqualtes 5x 74-25
Gragh Whe system olinar inqualtes 5x 74-25...
1 answer
Review an article related to a sentinel perioperative event. Be sure to summarize the article. Include...
Review an article related to a sentinel perioperative event. Be sure to summarize the article. Include the following: What is a sentinel event? Give background information on the patient (i.e. age, past medical history, admitting diagnosis). Discuss the cause of the sentinel event, if it resulted in...
1 answer
9 balls are marked with the number 1, 8 balls are marked with the number 3...
9 balls are marked with the number 1, 8 balls are marked with the number 3 and 3 balls are marked with the number 5. A ball is drawn at random from the urn. If the outcome is X, what is the variance of X ? Select one: a. 5.4000 b. 2.0400 c. 7.8000 d. 13.5600 e. 2.4000...
1 answer
Lab Assignment: Chapter 14 (Statistics Revie...i Saved Help Save & Exit Submit Required information Consider the...
Lab Assignment: Chapter 14 (Statistics Revie...i Saved Help Save & Exit Submit Required information Consider the given data. 29.65 29.75 30.85 29.25 28.75 28.55 28.65 30.15 29.35 29.05 30.25 30.65 28.15 29.85 29.65 30.45 29.15 30.45 33.65 29.35 29.75 29.45 29.25 31.25 30.15 29.65 30.55 29.65 eBo...
1 answer
5. Select the incorrect statement. (2 pts) a) An NMR of of benzoin will have a...
5. Select the incorrect statement. (2 pts) a) An NMR of of benzoin will have a total integration of 11 b) An NMR of benzil will have a total integration of 10 c) IR spectra of benzoin and benzil are distinguishable from each other d) An IR spectrum of 2,3,4,5-tetraphenylcyclopentadienone is not sign...
1 answer
How do you multiply #(2a ^ { 4} b ^ { 3} ) ( 3a b ^ { 2} )#?
How do you multiply #(2a ^ { 4} b ^ { 3} ) ( 3a b ^ { 2} )#?...
1 answer
The following stockholders’ equity accounts arranged alphabetically are in the ledger of Pronghorn Corporation at December...
The following stockholders’ equity accounts arranged alphabetically are in the ledger of Pronghorn Corporation at December 31, 2020. Common Stock ($6 stated value) $2,412,000 Paid-in Capital from Treasury Stock 10,000 Paid-in Capital in Excess of Par—Preferred Stock 660,000 P...
1 answer
What is the difference between the cash flow approach and the opportunity cost approach for replacement...
What is the difference between the cash flow approach and the opportunity cost approach for replacement decisions? The opportunity cost approach factors in the trade-in allowance, whereas the cash flow approach does not. These are actually two names for the exact same approach. Thus, there is absolu...
1 answer
I'm specifically stuck on part d. I have been attempting to prove it using the ratio...
I'm specifically stuck on part d. I have been attempting to prove it using the ratio test. 6. Recall that we may define the exponential function in terms of it's Taylor series expansion Similarly, we define the matrix exponential in terms of the following series 44 k=0 Where Ak is matrix mul...
1 answer
5. Draw the structures of the componds A, B, C, D and E. Indicate stereochemistry for...
5. Draw the structures of the componds A, B, C, D and E. Indicate stereochemistry for the compounds D and E H2, Lindlar's catalyst w Brz / CCI NINH, NH() Br A C excess Na, NH3() E...
1 answer
At 20°C, the resistance of a sample of nickel is 525 Ω. What is the resistance...
At 20°C, the resistance of a sample of nickel is 525 Ω. What is the resistance when the sample is heated to 70°C? Let a = 0.005866 at 20°C....
1 answer
A company is concerned about attacks in which an attacker impersonates a user by extracting a...
A company is concerned about attacks in which an attacker impersonates a user by extracting a password hashes. A security analyst has been tasked with mitigating this potential threat. Which of the following security controls would BEST mitigate this issue? A Salting the password hashes. B Increasin...
1 answer
19. Your patient has an order for dobutamine at a rate of 20 mcg/kg/min. Your patient...
19. Your patient has an order for dobutamine at a rate of 20 mcg/kg/min. Your patient weighs 155 kg. The solution strength is 500 mg dopamine in 250 ml of D5W. How many ml/hr will you infuse this IV? Record your answer using 0 decimal place(s). After receiving report, you walk into your patient'...