Question: Consider a relation R = {A, B, C, D, E} with the following dependencies. {A, B} rightarrow {C} {C, D} rightarrow {E} {D, E} rightarrow

Consider a relation R = {A, B, C, D, E} with the following dependencies. {A, B} rightarrow {C} {C, D} rightarrow {E} {D, E} rightarrow {B} Is AB a candidate key of R? What about ABD? Explain your

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!

Q1. Analyze the following scenario and solve them accordingly a) Consider a relation R (A, B, C, D, E) with the functional dependencies- BC D E C AB DA 1. Now, find the closure of attributes and...

Consider a relation R (A, B, C, D, E) and the following query: select * from R where A = '123' and B = '456'. Suppose relation R has 1000 tuples and have 50 unique values of A with each value...

Part (e) Problem 8 Consider a relation R (A, B, c, D, E, F, G, H) together with the functional dependencies AB E CD onsider RI (A, B, C, D) with the above functional dependencies. What would be a...

Q4-A (6 marks) Consider the relation R (A, B, C, D, E, F, G) and the set of functional dependencies Fd = {A->B, BC->F, BD->EG, AD->C, D- >F, BEG->FA}. Determine if we can infer the following...

Consider the relation R = {A, B, C, D, E, F, G, H, I, J} and functional dependencies {A, B} rightarrow {C} {A} rightarrow {D, E} {B} rightarrow {F} {F} rightarrow {G, H} {D} rightarrow {I, F} What is...

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

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

3 . [ 1 2 points ] Consider a relation R = ( A , B , C , D , E , F ) and a set S = { AB C , AC B , AD E , B D , BC A , D E } of functional dependencies that hold over R . Assume that R was decomposed...

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, 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)...

Writing About a Controversial Subject. In the discussion forums for this course, you've had the opportunity to read and respond to a variety of controversial topics: immigration, stereotyping, and...

Find the specific flow exergy in and out of the steam turbine in Example 9.1 assuming an ambient at 293 K. Use the exergy balance equation to find the reversible specific work. Does this calculation...

BE12.13 (LO 2, 3) Buchanan Company recently was sued by a competitor for patent infringement. Attorneys have determined that it is probable that Buchanan will lose the case and that a reasonable...

Prepare general journal entries, without explanations, for the merchandising transactions listed below for Lowell Company. Assume use of the perpetual inventory system, Net Method for Sales only. May...

a. What is the purpose of the team?

a. How are members selected to join the team?

b. What are its goals and objectives?