Consider the universal relation r

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August undefined, 2024

WebExpert Answer Transcribed image text: - - Consider the universal relation R = {A, B, C, D, E, F, G, H, I) and the set of functional dependencies F = { {A, B} -> {C}, {A} -> {D, E}, {B} -> {F}, {F} -> {G, H}, {D} -> > {1,J} }. What is the key for R? Draw the relation including functional dependencies with arrows. Web5. [30 points] Consider the universal relation R = (A, B, C, D, E, F, G, H, I, J) and the set of functional dependencies A, B -> C B, D -> E, F A, D -> G, H A -> I H -> J What is the key for R? Decompose R into 2NF, and then into 3NF relations. Expert Answer 100% (1 rating)

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WebNov 19, 2014 · Consider the universal relation R = {A, B, C, D, E, F, G, H, I, J}. What is the key for R? Decompose R into 2NF and then 3NF relations. Consider the universal … WebComputer Science. Computer Science questions and answers. 1. [10 points] Explain the differences between primary keys, candidate keys, and superkeys. If each is a set of keys within a table, how are they related to … can i take traffic school online

Answered: Consider the universal relation R (A,… bartleby

WebConsider the universal 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}}. Identify the key (s) for R and decompose it into 3NF and then 3NF relations. WebTherefore, the key for R is {A, B}. 2) R is not in 2NF because there are partial dependencies present, where a non-prime attribute depends on only part of a candidate key. To decompose R into 2NF relations, we need to remove the partial dependencies. The decomposition into 2NF relations is as follows: R1({A, B, D, H}) R2({B, C}) R3({E, F, G}) WebQuestion 14.28 Consider the relation R, which has attributes that hold schedules of courses and sections at a university; {Course_no, Sec_no, Offering_dept, Credit_hours, Course_level, Instructor_ssn, Semester, Year, Days_hours, Room_no, No_of_students}. Suppose that the following functional dependencies hold on R {Course_no} → … can i take topiramate with ozempic

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Solved 1. [10 points] Explain the differences between

WebThis problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts. See Answer See Answer See Answer done loading WebOne way to do this is to compute the closure of each attribute set using the given functional dependencies and check which one includes all attributes of R. The closure of an attribute set X under a set of functional dependencies F is denoted as X+ and defined as the set of all attributes that can be determined by X using F. can i take topiramate with phentermineWebUniversal Relation A universal (or full relation) is a type of relation in which every element of a set is related to each other. Consider set A = {a, b, c}. Now one of the universal relations will be R = {x, y} where, x – y ≥ 0. For universal relation, R = A × A Identity Relation five night at freddy joy of creations

"WebConsider the universal relation R (A, B, C, D, E, F, G} and the set %3! of functional dependencies F = ( {B, C) -> (A), (C) -> {D, E G}. (E} -> F}. What is the key for R? Decompose R into 2NF, then 3NF relations. Question Transcribed Image Text: 2. " - Consider the universal relation r

Consider the universal relation r

WebConsider the universal 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}}. What is the key for R? Decompose R into 2NF and then 3NF relations. 2. WebView this solution and millions of others when you join today!

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WebTo check for lossless join, we need to check if the natural join of all decomposed relations produces the original relation without creating any extraneous tuples. Here, we can see that the natural join of R1, R2, and R3 produces the original relation R, and the natural join of R3, R4, and R5 produces the original relation R. WebConsider the universal 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}}. …

WebLab 10 Question 14.24 Consider the universal 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} … Web(a) Key of the Relation R is {A, B} (b) Decompose R into 2NF, then 3NF relations. This problem has been solved! You'll get a detailed solution from a subject matter expert that helps you learn core concepts.

WebSep 11, 2024 · Is AB a candidate key of this relation? If not, is ABD?Explain your answer. Hint. Find out (AB) +.If it is equal to R then AB is a candidate key. If it is not then test (ABD) + in similar way. 5. Consider the relation R, which has attributes that hold schedules of courses and sections at a university; R = {Course_no, Sec_no, Offering_dept, … WebYa, I just really looked at option a. I didn't really consider specifying/figuring out which keys were minimal keys because it wasn't part of the question. I remember from my db theory courses that identifying minimal keys was a different topic from identifying any key. So I chose to leave that out from my answer to avoid confusion. –

WebShow that the relation R on A given by R = { (a,b) : difference between the heights of a and b is less than 5 meters} is the universal-relation. Solution : It is obvious that the …

WebConsider the universal relation R = {A, B, C, D, E, F, G, H, I, J} and the set of functional dependencies S = { {A, B}→ {C}, {B, D}→ {E, F}, {A, D}→ {G, H}, {A}→ {I}, {H}→ {J}}. Create a minimal set of dependencies S𝑚𝑖𝑛 that is equivalent to S. Database and SQL Expert Answer five night at freddy minecraft map bedrockWebLet us distinguish between two forms of universalism: 1. All actions of type X are wrong for all people. 2. All rational people ought to decide to do X, when they are under identical … five night at freddy robloxWebFeb 1, 2024 · Condition: Consider R as a relation in a set, and A denotes a universal relation because, in this whole relation, each component of A is related to each component of A. i.e R = A × A. In other words, a relation R in a set A is termed a universal relation if each element of A is related to every element of A, i.e., R = A × A. 4. five night at freddy nameWebThe universal relation assumption in relational databases states, that one can place all data attributes into a (possibly very wide) table, which may then be decomposed into … five night at freddys.comWeb14.28. Consider the relation R, which has attributes that hold schedules of courses and sections at a university; R = {Course_no, Sec_no, Offering_dept, Credit_hours, Course_level, Instructor_ssn, Semester, Year, Days_hours, Room_no, No_of_students}. Suppose that the following functional dependencies hold on R: {Course_no} → … five night at freddy security breach crackWebConsider the universal 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}}. What is … five night at freddy simulator downloadWebTherefore, the key for R is {A, B}. 2) R is not in 2NF because there are partial dependencies present, where a non-prime attribute depends on only part of a candidate key. To … can i take tramadol and clonazepam