Consider the following relation (capitalized letters are attribute names and lower-case letters are values)
A |
B |
C |
D |
E |
a1 |
b2 |
c2 |
d3 |
e2 |
a1 |
b2 |
c2 |
d1 |
e4 |
a2 |
b3 |
c2 |
d1 |
e5 |
a2 |
b4 |
c5 |
d1 |
e5 |
Consider the following relation (capitalized letters are attribute names and lower-case letters are values) A B...
The data on the table follow an exponential model y-aebx, Fill in the blanks 0.4 800 [a1] [b1] [c1] [d1] 0.8 975 [a2] [b2] [c2] [d2] 1.2 1500 [a3] b3] [c3] [d3] 1.6 1950 [a4] b4] [c4] [d4] 2 2900 [a5 [b5] [c5] [d5 2.3 3600 [a6] [b6] [c6] [d6] Sum [a b c7] [d7] The average value of w is [e1] The average value of z is [e2] a1- [e3] a0- [e4] а» [e5] b- [e6]
Mark True/False for functional dependencies of the following table R(A, B, C, D, E), where we assume that it is the intent of the designer that exactly this set of rows should list in the table. A B C D E a1 b1 c1 d1 e1 a2 b2 c2 d2 e2 a1 b1 c1 d1 e2 a2 b2 c3 d4 e2 (a) A --> B (b) B --> A (c) C--> A (d) D --> A (e) CD --> B
Consider a relation R(A,B,C,D,E) with the following functional dependencies: 8. AB C BCD CDE DEA (a) Specify all candidate keys for R. (b) Which of the given functional dependencies are Boyce-Codd Normal Form (BCNF) violations'? (c) Give a decomposition of R into BCNF based on the given functional dependencies. (d) Give a different decomposition of R into BCNF based on the given functional dependencies. (e) Give a decomposition of R into 3NF based on the given functional dependencies. Consider a...
Consider a relation R(A,B,C,D,E) with the following functional dependencies: 8. AB C BCD CDE DEA (a) Specify all candidate keys for R. (b) Which of the given functional dependencies are Boyce-Codd Normal Form (BCNF) violations'? (c) Give a decomposition of R into BCNF based on the given functional dependencies. (d) Give a different decomposition of R into BCNF based on the given functional dependencies. (e) Give a decomposition of R into 3NF based on the given functional dependencies.
Language: SQL - Normalization and Functional Dependencies Part 4 Normalization and Functional Dependencies Consider the following relation R(A, B, C, D)and functional dependencies F that hold over this relation. F=D → C, A B,A-C Question 4.1 (3 Points) Determine all candidate keys of R Question 4.2 (4 Points) Compute the attribute cover of X-(C, B) according to F Question 43 (5 Points) Compute the canonical cover of F.Show each step of the generation according to the algorithm shown in class....