Question: Consider a relation R(A, B, C,D,E, G, H,I.J.K) and its FD set F (A BC,E - 4) List at least 5 super-keys for R. (2

Consider a relation R(A, B, C,D,E, G, H,I.J.K) and its FD

Consider a relation R(A, B, C,D,E, G, H,I.J.K) and its FD set F (A BC,E - 4) List at least 5 super-keys for R. (2 marks) Is it possible to decompose R into a collection of BCNF relations and ensure the decomposition is dependency-preserving and lossless-join? Please justify your answers. (3 marks) 5)

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!

. Consider a relation R (A, B, C, D, E, G, H, I, J) and its FD set F = {AB -> DGH, DG->EI, H->A, DEJ->CI, AI->EHJ}. Regarding the following questions. Give and justify your answers if...

Consider the relation R = {A, B, C, D, E, F, G, H, I,J} and the set of functional dependencies F = { {A, B} -> {C}, {A} -> {D, E}, {B} -> {F}, {F} ->{G, H}, {D} -> {I, J} }. (a) Proof {A}->{E,J}...

Consider the relation R = {A, B, C, D, E, F, G, H, 1,J} and the set of functional dependencies F = {{A, B} -> {C}, {A} -> {D, E}, {B} -> {F}, {F} -> {G, H}, {D} ->{I, J}}. (a) Proof {A}->{E,J} holds...

Consider the relation R = {A, B, C, D, E, F, G, H, I} and the set of functional dependencies {AB C, A DE, B F, F G, D HI}. For each of the following decompositions of R, determine whether it has (i)...

Consider the relation R = {A, B, C, D, E, F, G, H, I,J} and the set of functional dependencies F = { {A, B} -> {C}, {A} -> {D, E}, {B} -> {F}, {F} ->{G, H}, {D} -> {I, J} }. 1) Decompose R into 2NF....

. (a) (12 marks) Consider the relational schema R(A, B, C, D, E, G, H, I, J) and a set of functional dependencies F = {EHI - AB, DJ - GI, BC - EIJ, I - D, AE - CG}. Note that A, B, C, D, E, G, H,...

(18 marks) Consider the relational schema R(A, B, C, D, E, G, H, I, J) and a set of functional dependencies F = {BD ? CH, BC ? HI, EI ? H, H ? AB, I ? E, EJ ? I}. Note that A, B, C, D, E, ...

Consider the relation R = {A, B, C, D, E, F, G, H, I} and the set of functional dependencies {AB C, BD E, AD FG, A H, H I, AD I, ABD CFG, A I}. Find the minimal/canonical cover of the set of...

Consider the relation R = {A, B, C, D, E, F, G, H, I, J} and the set of functional dependencies F = {{A, B}-C, {B, D}-{E, F}, {A, D}-{G, H), AI,HJ). Decompose R into 3NF relations Select one: O a R1...

(page 4 of 20) - Opera op.edu.jos de quatre pupp / My courses / UOP Faculties / 06-Faculty of Information Technology / Course by Semester / Semester 20201 / Datat d Site home Calendar Badges All...

During a recent year, speeding was reported in 12.9% of all automobile accidents in the United States (The World Almanac 2010). Assume the probability that speeding is reported in an accident is...

Show that the utility function u(c.l) = In(c) - (h-1)1+a 1+o where c is consumption, 1 is leisure, and 8 >0 and o>0 are constant, exhibits strictly positive but diminishing marginal utility in both...

Which of the following would not be classified as an expense on an income statement? Stlect one: a . General and Administrative expense b . Interest expense c . Prepaid expense d . Marketing expense...

The Florida citrus industry has very high fixed costs relative to variable costs. Therefore, we expect to see A ) chronically low prices B ) low profits C ) lots of bankruptcies among grove owners D...

How do Dimensional Database Models differ from Relational Models?

What type of processing do Relational Databases support?

Describe several aggregation operators.