given the following functional dependecies ab-c c-a bc-d acd-b d-eg be-c cg-bd ce-ag conver to min...
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given the following functional dependecies
ab-c
c-a
bc-d
acd-b
d-eg
be-c
cg-bd
ce-ag
conver to min...
Given the following relation schemas and the sets of FD's: a- R(A,B,C,D) F={ABẠC,C7D, D´A, BC+C} b-...
Given the following relation schemas and the sets of FD's: a- R(A,B,C,D) F={ABẠC,C7D, D´A, BC+C} b- R(A,B,C,D) F={BẠC, BD, AD>B} C- R(A,B,C,D) F={AB-C, DC+D, CD+A, AD+B} d- R(A,B,C,D) F={AB=C, C+D, D™B, DE} e- R(A, B, C, D, E) F= {AB+C, DB+E, AE>B, CD+A, ECD} In each case, (i) Give all candidate keys (ii) Indicate the BCNF violation Give the minimal cover and decompose R into a collection of relations that are BCNF. Is it lossless? Does it preserve the dependencies?...
Simplify the logic express Y(a,b,c)=(ab)'+acd'+a(bc)'+a'bc+(ab)'cd+a(cd)'.
Simplify the logic express Y(a,b,c)=(ab)'+acd'+a(bc)'+a'bc+(ab)'cd+a(cd)'.
Consider the following relation R(A,B,C,D,E,G) and the set of functional dependencies F = { A →...
Consider the following relation R(A,B,C,D,E,G) and the set of functional dependencies F = { A → BCD BC → DE B → D D → A} Give a 3NF decomposition of the given schema based on a canonical cover
Consider a relation R with five attributes A, B, C, D, and E. You are given...
Consider a relation R with five attributes A, B, C, D, and E. You are given the following functional dependencies: A → B, BC→E, and ED→A. (a) Is R in BCNF? If it is not, decompose it into a collection of BCNF relations. 2: BCNF and 3NF (3 points) Consider the relation schema R with attributes A, B, C, and D and the following functional dependencies: AB→C, AC→B, B→D, BC→A. (a) Is R in BCNF? If it is not, decompose...
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 No...
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...
R= ABCDEG decomposition: {AB, BC, ABDE, EG } F = {AB → C, AC → B,...
R= ABCDEG decomposition: {AB, BC, ABDE, EG } F = {AB → C, AC → B, AD → E, B → D, BC → A, E → G} Is this lossless or not? Please Draw a table for this, the answer set online told me this is lossy, but when I do the table test, I find it is lossless.
BC . ll AB 1 BD For the beam shown, find the following: 3a) The free...
BC . ll AB 1 BD For the beam shown, find the following: 3a) The free body diagram (10 pts) 3b) Reactions at B (10 pts) 3c) Reaction at D (10 pts) P1 = P2 = P3 = 9k BX AB = a = BC = b = BD = C= DE = d = 5 ft 10 ft 30 ft 6 ft 30 ft
Consider a relation R(A,B,C,D,E) with the following functional dependencies: 8. AB C BCD CDE DEA (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.
6. Let R(ABCDEFGH) satisfy the following functional dependencies А В.CH A, B E, BD C. EG...
6. Let R(ABCDEFGH) satisfy the following functional dependencies А В.CH A, B E, BD C. EG H. DE F. Which of the following FD's is also guaranteed to be satisfied by R? a) BFG AE ich or the rollowing FD'S is also guaranteed to be satisned by b) CGH BF c) ACG DH d) ADG CH
15)Find the value of x, given DE¯¯¯¯¯¯¯¯∥BC¯¯¯¯¯¯¯¯, AD=x+33, BD=x+13, AE=18, and CE=10. Question 15 Find the...
15)Find the value of x, given DE¯¯¯¯¯¯¯¯∥BC¯¯¯¯¯¯¯¯, AD=x+33,
BD=x+13, AE=18, and CE=10.
Question 15 Find the value of , given DE || BC, AD = 7+33, BD = 1 + 13, AE = 18, and CE = 10. B D P с E a) O 12 b) 09 c) O 10 d) O 15 N e) None of the above
Given the following relation schemas and the sets of FD's: a- R(A,B,C,D) F={ABẠC,C7D, D´A, BC+C} b- R(A,B,C,D) F={BẠC, BD, AD>B} C- R(A,B,C,D) F={AB-C, DC+D, CD+A, AD+B} d- R(A,B,C,D) F={AB=C, C+D, D™B, DE} e- R(A, B, C, D, E) F= {AB+C, DB+E, AE>B, CD+A, ECD} In each case, (i) Give all candidate keys (ii) Indicate the BCNF violation Give the minimal cover and decompose R into a collection of relations that are BCNF. Is it lossless? Does it preserve the dependencies?...
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...
BC . ll AB 1 BD For the beam shown, find the following: 3a) The free body diagram (10 pts) 3b) Reactions at B (10 pts) 3c) Reaction at D (10 pts) P1 = P2 = P3 = 9k BX AB = a = BC = b = BD = C= DE = d = 5 ft 10 ft 30 ft 6 ft 30 ft
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.
6. Let R(ABCDEFGH) satisfy the following functional dependencies А В.CH A, B E, BD C. EG H. DE F. Which of the following FD's is also guaranteed to be satisfied by R? a) BFG AE ich or the rollowing FD'S is also guaranteed to be satisned by b) CGH BF c) ACG DH d) ADG CH
15)Find the value of x, given DE¯¯¯¯¯¯¯¯∥BC¯¯¯¯¯¯¯¯, AD=x+33,
BD=x+13, AE=18, and CE=10.
Question 15 Find the value of , given DE || BC, AD = 7+33, BD = 1 + 13, AE = 18, and CE = 10. B D P с E a) O 12 b) 09 c) O 10 d) O 15 N e) None of the above
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