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Using the STUDENT table structure shown in Table P6.4, do the following: a. Write the relational schema and draw its dependency diagram. Identify all dependencies, including all transitive dependencies. b. Write the relational schema and draw the dependency diagram to meet the 3NF requirements to the greatest practical extent possible. If you believe that practical considerations dictate using a 2NF structure, explain why your decision to retain 2NF is appropriate. If necessary, add or modify attributes to create appropriate determinants and to adhere to the naming conventions. c. Using the results of Problem 4, draw the Crow's Foot ERD. Note: Although the completed student hours (STU_HOURS) do determine the student classification (STU_ClASS), this dependency is not as obvious as you might initially assume it to be. For example, a student is considered a junior if the student has completed between 61 and 90 credit hours.

Using the STUDENT table structure shown in Table P6.4, do the following: a. Write the relational schema and draw its dependency diagram. Identify all dependencies, including all transitive dependencies. b. Write the relational schema and draw the dependency diagram to meet the 3NF requirements to the greatest practical extent possible. If you believe that practical considerations dictate using a 2NF structure, explain why your decision to retain 2NF is appropriate. If necessary, add or modify attributes to create appropriate determinants and to adhere to the naming conventions. c. Using the results of Problem 4, draw the Crow's Foot ERD. Note: Although the completed student hours (STU_HOURS) do determine the student classification (STU_ClASS), this dependency is not as obvious as you might initially assume it to be. For example, a student is considered a junior if the student has completed between 61 and 90 credit hours.

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Using the STUDENT table structure shown in Table P6.4, do the following:

a. Write the relational schema and draw its dependency diagram. Identify all dependencies, including all transitive dependencies.

b. Write the relational schema and draw the dependency diagram to meet the 3NF requirements to the greatest practical extent possible. If you believe that practical considerations dictate using a 2NF structure, explain why your decision to retain 2NF is appropriate. If necessary, add or modify attributes to create appropriate determinants and to adhere to the naming conventions.

c. Using the results of Problem 4, draw the Crow's Foot ERD.



Note: Although the completed student hours (STU_HOURS) do determine the student classification (STU_ClASS), this dependency is not as obvious as you might initially assume it to be. For example, a student is considered a junior if the student has completed between 61 and 90 credit hours.

TABLE P6.4 ATTRIBUTE SAMPLE VALUE SAMPLE VALUE SAMPLE VALUE SAMPLE VALUE SAMPLE VALUE NAME 211343 Stephanos STU_NUM 200128 199876 198648 223456 STU LNAME Smith Jones Ortiz McKulski STU_MAJOR Accounting Accounting Marketing Marketing Statistics DEPT_CODE АССТ АССТ MKTG MKTG MATH DEPT_NAME Accounting Accounting Marketing Marketing Mathematics DEPT PHONE 4356 4356 4378 4378 3420 COLLEGE_NAME Business Admin Business Admin Business Admin Business Admin Arts & Sciences ADVISOR_LNAME Grastrand ADVISOR_OFFICE T201 Grastrand Gentry Tillery Chen T201 T228 Т356 Ј331 ADVISOR_BLDG Torre Building Torre Building Torre Building Torre Building Jones Building ADVISOR_PHONE 2115 2115 2123 2159 3209 STU GPA 3.87 2.78 2.31 3.45 3.58 STU_HOURS 75 45 117 113 87 STU_CLASS Junior Sophomore Senior Senior Junior
Transcribed Image Text:TABLE P6.4 ATTRIBUTE SAMPLE VALUE SAMPLE VALUE SAMPLE VALUE SAMPLE VALUE SAMPLE VALUE NAME 211343 Stephanos STU_NUM 200128 199876 198648 223456 STU LNAME Smith Jones Ortiz McKulski STU_MAJOR Accounting Accounting Marketing Marketing Statistics DEPT_CODE АССТ АССТ MKTG MKTG MATH DEPT_NAME Accounting Accounting Marketing Marketing Mathematics DEPT PHONE 4356 4356 4378 4378 3420 COLLEGE_NAME Business Admin Business Admin Business Admin Business Admin Arts & Sciences ADVISOR_LNAME Grastrand ADVISOR_OFFICE T201 Grastrand Gentry Tillery Chen T201 T228 Т356 Ј331 ADVISOR_BLDG Torre Building Torre Building Torre Building Torre Building Jones Building ADVISOR_PHONE 2115 2115 2123 2159 3209 STU GPA 3.87 2.78 2.31 3.45 3.58 STU_HOURS 75 45 117 113 87 STU_CLASS Junior Sophomore Senior Senior Junior
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