Consider the following relation with functional dependencies as shown below. R{sno, sname, age, cno, cname, group) R(A, B, C, D, E, F) Divyansh sharma AB, C C F D-E In which normal form is the relation R is in ? (A) First normal form (B) Second normal form (C) Third normal form (D) Boyce Codd normal form

Q: What are three indications that a surrogate key should be constructed for the primary key of a…

A: Surrogate key is unique key and also called as synthetic primary key. Surrogate key holds anonymous…

Q: Consider the following relation with set of functional dependencies R(ABCDEF) ABC->D, ABD->E, CD->F,…

A: In this question, we are given a relation with set of functional dependenciesR(ABCDEF)ABC->D,…

Q: How do we decompose this relation to solve this problem?

A: An entity is an object in the real world with an independent existence that can be differentiated…

Q: Based on the properties of a relation, explain why the following is not an example of a relation:…

A: The given table has duplicate rows. Row1 and 2 are duplicated Row 4 and 5 are duplicated

Q: Q. A/ Consider a STUDENT relation with the following attributes (St ld, St Name, St_Stage, Average,…

A: In order to design the student table with with attributes St_id (which is the student id), St_Name…

Q: A attribute in a relation is a foreign key if the _______ key from one relation is used as an…

A: A foreign key is a key used to link two tables together. This is sometimes also called as a…

Q: In mathematical term Table is referred as a. Relation b. Attribute c. Tuple d. Domain

A: In mathematical term Table is referred as a. Relation b. Attribute c. Tuple d. Domain

Q: (7) Consider the following relation for published books: BOOK (Book_title, Author_name, Book_type,…

A: Here key for the given relation is {BookTitle, Author Name} The FD  BookTitle -> Publisher,…

Q: Q. Consider the following emp relation and rename it with your name:…

A: SQL : It stands for structured query language. It is used to communicate with application to…

Q: Consider the following functional dependencies for a relation R(A, B, C, D) A -> (B, C, D), (A, D)…

A: Given relation with functional dependencies is: R(A, B, C, D) A -> (B, C, D), (A, D) -> (B, C)…

Q: nformally describe the conditions to be met for a relation to be in Third Normal Form. Describe why…

A: 1. For a relation to be in 3NF, all the functional dependencies should be in form X->Y where X is…

Q: List all functional dependencies satisfied by the relation shown in the figure. Q R 1 3 4 2 4 5 1 3…

A: the only functional dependency available in this given relation is

Q: Consider the following relation for published books: BOOK (Book title, Author_name, Book type, List…

A:

Q: Now start with these functional dependencies: АВ > Е C → D F → GH FG → GH В > FG Find a minimal…

A: A) AB ->E, C->D, F->GH, FG->GH, B->FG Here in FD FG->H, we can delete G from RHs…

Q: In mathematical term Row is referred as a. Relation b. Attribute c. Tuple d. Domain

A: In SQL and other relationship databases,

Q: Given the following relational schema (Hint: the bold text represents a primary key), Department…

A: Lets discuss the solution in the next steps

Q: :One of the following statements is true regarding normalization .Normalization is a top-down…

A: Lets see the solution.

Q: Which is the process of breaking a relation into multiple relations: a. Functional dependency b.…

A: This mcq is related to RDBMS.

Q: Suppose that you are given a relation R = (A,B,C,D,E) with the following functional dependencies:…

A: Here, from the given functional dependency we have, {BC}+ = ADEBC {D}+ = BD   Hence here {BC} is the…

Q: In what normal form is the LOTS relation schema in the Figure with respect to the restrictive…

A: The relationship data, if it is in a first NF and all non key depend on primary attribute. Then the…

Q: What are the significant functional dependencies in this relation?         (b) What is/are the…

A: Functional Dependencies (FD):                It determines the relation between two attributes in…

Q: Consider the relation schema R (A, B, C, D) with all possible functional dependencies. For each of…

A: 1. A, C -> B, D C -> D Here the key for the relation is (AC)  The FD C->D is a partial…

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A: The given is a relation named Student which holds the attributes to store the details about a…

Q: A functional dependency between two (or more) nonprimary key attributes in a relation defines a…

A: Please give positive ratings for my efforts. Thanks.   ANSWER   If there are no functional…

Q: Given a relation with underlined key attributes as below A B 1 7 9. 2 7 10 11 4 8 11 5 7 10 •…

A: All functional dependencies from the given relation is A -> B A-> C C -> B The given…

Q: 1. The BOOK CHECKOUT relation stores data about books checked out by students at a university. The…

A: Book_checkout (studentID,studentname,studentphonenumber,ISBN ,booktitle,checkoutdate,returndate)…

Q: Define a relation prereq depth(course id, prereq id, depth) where the attribute depth indicates how…

A: The CTE name is given as 'prereq depth' with attributes prereq id, course id, and depth, where depth…

Q: 1.Consider the relation schema given in below fig. Design and draw an ER diagram that capture the…

A: A diagram that is used to describe a structure of a database is called Entity Relation Diagram. A…

Q: Answer the following questions based on the functional dependencies for a relation as provided…

A: The key for the given relation is AC_Num. Therefore any functional dependency whose left side is a…

Q: 1NF: First Normal Form - Eliminate repeating data and non-atomic values; add keys The data is stored…

A: Solution:- Step 1The ask is to normalize the given data set and derive the 1NF, 2NF and 3NF.

Q: 1. The table above is not in First Normal Form (1NF). Why? 2. Transform the Table 1 into 1NF. 3.…

A: The given problem has a table with sample data values in it and requirement is to normalize the…

Q: 3. a) A relation that does not have a composite primary key still has partial functional dependency.…

A: Answer: Answer -3(a): The correct answer is 1. TRUE Explanation:  Yes, the relation is uniquely…

Q: Consider the following relation with functional dependencies as shown below. {{sno, sname, age, cno,…

A: We are given a relation R with functional dependencies and attributes as A,B,C,D,E,F . We are going…

Q: Write a relational algebra expression that is equivalent to the following SQL statement: SELECT…

A: Given SQL statement is, SELECT AVG(SALARY) , COUNT(*) FROM EMPLOYEE WHERE  GENDER = 'M' GROUP BY…

Q: Consider the following relation with functional dependencies as shown below. R{sno, sname, age, cno,…

A: Given:

Q: QUESTION 6 Consider the following functional dependencies for a relation R(A, B, C, D) A -> (B, C,…

A: A super key whose any proper subset is not super key is called candidate key.   closure table : (A)+…

Q: Please help with the folllowing: Consider the following declaration of a relation schema…

A: QI:  Insert INTO R (B, C) Values (353, 'B');  Screenshot of SQL program for the above insertion…

Q: Authorname, Book_type, Listprice, Author_affil, Publisher) Author_affil refers to the affiliation of…

A: (a) Explanation: =>Let say relation BOOK =R, Book_title = A, Author_name = B, Book_type = C,…

Q: Which of the following functional dependencies are satisfied (and not satisfied) by this relation…

A: Here in this question we have given. Stones FDs and we have asked that which of the following FDs…

Q: . Foreign key is the one in which the ________ of one relation is referenced in another relation. a.…

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Q: Defined the relational algebra operations as follows: SELECT (p, R) is equivalent to σp(R)…

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Q: Convert to 1NF Relation Draw dependency diagram showing all functional dependencies Identify…

A: Rule to convert this tale into 1 NF:-

Q: A relation that contains a minimum amount of redundancy and allows users to insert, modify, and…

A: Lets see the solution.

Q: StaffID ContractNo HoursPerWeek StaffName OfficeNo OfficeLocation 101 C90 16 Anne O25…

A:

Q: Informally describe the conditions to be met for a relation to be in Second Normal Form. In terms of…

A: Second Normal Form, it must satisfy two conditions: The table should be in the First Normal Form.…

Q: Consider the following relation for published books: BOOK (Book title, Author_name, Book type, List…

A: Let's discuss schema and dependencies: Schema given : Book(Book title , Author_name , Book type…

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.