Given the reation R (A, B, C, D , E), with functional dependencies: A, B -> C D, E -> C B -> D Could you explain why this is not functional dependency preserving? Also could you work out the BCNF for this?

Q: Which of the followings can possibly be a canonical cover Fc of a set F of functional dependencies?…

A: The answer to this question is option b) {A → D, AB → C, D → B} and d) {A → C, D → B, AB → C}

Q: 3. Disprove the following rule: {B > CD, AB → E, E → C} |= {AE → CD} To disprove a rule, construct a…

A:

Q: Given the functional dependency (A, B) C and BCthen it is true that AC O True O False

A: It is False

Q: B.  Draw the digraph of the relation on {a, b, c, d} 1.  {(a, b), (b, b), (b, c), (c, d), (d, a)}…

A: Digraph is a directed graph consists of a set of nodes and set of ordered pairs called edges. Here,…

Q: An ID-dependent Weak Entity typically result in a table with a compound primary key with at least…

A: A weak entity in a relational database is one that can't be uniquely identified by just its…

Q: What does the Weak Entity set entail?

A: Introduction: It is necessary to utilize a foreign key in conjunction with an attribute to establish…

Q: Give an example of how one non-key property depends on another non-key attribute to function?

A: I have answered this question in step 2.

Q: What's the difference between weak and strong entity sets?

A: What's the difference between weak and strong entity sets?

Q: Describe the concept of data binding in the context of dependency injection frameworks like Angular.

A: In this question we have to understand the concept of data binding in the context of dependency…

Q: PQ → TY ii. P → QR iii. QST → R iv. STR → P   From the above functional dependencies, using…

A: Given:- i. PQ → TY ii. P → QR iii. QST → R iv. STR → P   From the above functional dependencies,…

Q: Give a functional dependency-based definition of "primary key"

A: Given: Functional Dependency (FD) defines the relationship between two database attributes (DBMS).…

Q: what are the weak entities of this problem?

A: EER is defined as the high-level data model that incorporates the extensions to the original ER…

Q: Normalization: elational schema and FR corresponding set of functio R = ABCDE FR = {AC, BD, C → A}

A: Tables are arranged using the normalization method in the database architecture to reduce data…

Q: ind a minimal covering of these functional dependencies. Then use it to synthesize a set of…

A:

Q: Give a functional dependency-based definition of "primary key"

A: Give a functional dependency-based definition of primary key answer in below step.

Q: The conclusion of the template is a condition which must be held on tuples hypothesis in the…

A: Template dependencies offer a broader range of data dependencies than earlier dependencies could…

Q: Given the relation R(C, D, E, F) and functional dependency: C-> DF Which of the following functional…

A: Answer to the above question is in step2.

Q: The distinction between a weak and a strong entity collection has to be clarified.

A: In the context of entity collections in a database or data modeling, the distinction between weak…

Q: For each one of the domain specification given below, identify all the functional dependencies, and…

A: Database Management System. 1NF: A relation is in 1NF if and only if all underline domain contain…

Q: What is the definition of functional dependency?

A: The solution to the given problem is below.

Q: Develop a program that takes as input: 1- A relation R with a set of attributes. The number of…

A: These question answer is as follows,

Q: List the advantages of 3NF over BCNF     Can always preserve functional dependencies     Ensures…

A: The correct answer to this question is option a) can always preserve functional dependencies.

Q: What is the definition of functional dependency?

A: What is the definition of functional dependency?

Q: find the no. of F-D'S 2-attributes? in F-closure (F+) for a relation with

A: No of f.d's in fcloser(f+) for a relation: given  we have find it for 2 attributes so take…

Q: Q2: Given relation R with attributes (A, B, C, D, E, F). Give all the keys of R if the functional…

A: Given relation R(A, B, C, D, E, F)   Functional Dependencies: AB → C,  CD → E,  E → F   A, B, D do…

Q: Assignment: Which of the following links are equivalent/inequivalent? Where links are inequivalent,…

A: Which of the following links are equivalent/inequivalent ? what links are inequivalent .what is the…

Q: c. For a schema R (A, B, C, D) bearing FDs F={A B, B + C, C + D, D + A}, find if the decomposition…

A: for dependency preserving, F1 U F2 = F where F1 is the functional dependency of R1 F2 is the…

Q: An illustration of a super type/subtype connection. that disjoint rule is applicable?

A: Contradictory rule The disjoint rule specifies that an instance of the super type cannot be a member…

Q: Given 5 dimensional parameters A, B, C, D, E, F and the following set S of functional dependencies S…

A: Given:  we have set of functional dependacies -> Relation -> S ( A,B,C,D,E,F ) S = { B ->…

Normalization

Normalization is the process of eliminating redundancy in a database by organizing the data into several smaller tables. The large tables are normalized (converted) into smaller tables by using normalization rules, so that a database administrator can easily handle them. It also eliminates insertion, deletion, and update anomalies.