Introduction to Algorithms
3rd Edition
ISBN: 9780262033848
Author: Thomas H. Cormen, Ronald L. Rivest, Charles E. Leiserson, Clifford Stein
Publisher: MIT Press
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Give two examples of a relation and their candidate key
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Chapter B Solutions
Introduction to Algorithms
Ch. B.1 - Prob. 1ECh. B.1 - Prob. 2ECh. B.1 - Prob. 3ECh. B.1 - Prob. 4ECh. B.1 - Prob. 5ECh. B.1 - Prob. 6ECh. B.2 - Prob. 1ECh. B.2 - Prob. 2ECh. B.2 - Prob. 3ECh. B.2 - Prob. 4E
Ch. B.2 - Prob. 5ECh. B.3 - Prob. 1ECh. B.3 - Prob. 2ECh. B.3 - Prob. 3ECh. B.3 - Prob. 4ECh. B.4 - Prob. 1ECh. B.4 - Prob. 2ECh. B.4 - Prob. 3ECh. B.4 - Prob. 4ECh. B.4 - Prob. 5ECh. B.4 - Prob. 6ECh. B.5 - Prob. 1ECh. B.5 - Prob. 2ECh. B.5 - Prob. 3ECh. B.5 - Prob. 4ECh. B.5 - Prob. 5ECh. B.5 - Prob. 6ECh. B.5 - Prob. 7ECh. B - Prob. 1PCh. B - Prob. 2PCh. B - Prob. 3P
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Similar questions
- Draw the digraph of the relation R, where the relation R on {1,2,3,4} defined by (x,y) ∈ R if .arrow_forwardIn the following, assume that A = {a,b,c,d} and that R : A ↔ A. Determine whether each relation is reflexive, symmetric and/or transitive (more than one property can apply to a relation). Are any total or onto? 1) R = {(a,b),(b,b),(b,c),(c,c)} 2) R=A×A 3) R = {(c,d),(d,c),(c,c))}arrow_forwardExplanation of three situations in which it is suitable to construct a substitute key for a relation's primary keyarrow_forward
- Using the relation {(1, 2), (1, 4), (3, 3), (4, 1)}, write the relations that have theminimum element and provide the following properties.a) Reflexive and transitiveb) Symmetrical and transitivec) Reflexive, symmetrical, and transitive.arrow_forwardDiscuss the differences between the candidate keys and the primary key of a relation.arrow_forwardB. Draw the digraph of the relation on {a, b, c, d} 1. {(a, b), (b, b), (b, c), (c, d), (d, a)} 2. {(a, b), (b, c), (c, d), (c, a), (d, a), (d, b)}arrow_forward
- Three instances in which a surrogate key should be constructed for the relation's primary keyarrow_forwardHere we explain three cases when it makes sense to use a surrogate key in lieu of the relation's main key.arrow_forwardDetermine whether the given relation is reflexive, symmetric, anti-symmetric and transitive (x, y)∈R if and only if y=x is less than and equal to x^2arrow_forward
- Explanation of three circumstances in which a surrogate key should be generated for the main key of a relation is appropriatearrow_forwardFor relation (R), its attributes and its functional dependencies (F): R(A, B, C, D, E) C D → B A → D E → C 1. Decompose the above relation using the Boyce-Codd Normal Form (BCNF) decomposition. 2. What is the key for the relation R?arrow_forwardDecompose the above relation using the Boyce-code normal form decomposition. What is the key relation for the relation Rarrow_forward
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