Which of the following is NOT a property of a relation? Tick all that apply. [ ] Each cell in a relation cannot contain multiple values. [ ] Order of tuple is important. [ ] The name of a relation is unique. [ ] Values of an attribute from the same domain.

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: What is the most common method of specifying a primary key in a relational schema description?…

A: Method of specifying primary key in relational schema

Q: Display employees (by name and address) from "Chicago" and with an annual salary between 60000…

A: The database management system is a collection of data and information and SQL languages are used…

Q: Explanation of three cases when it makes sense to create a secondary key instead of the main one in…

A: The three cases when it makes more sense to create a secondary key instead of using the main key in…

Q: 39 Refer to the following ER diagram to answer the question below: PK Student SSN Name Year GPA How…

A: Answer:-   The correct answers are: A) The CampusID attribute in the Registration relation is a…

Q: ID name Courses M semester Teaches N ID name Professors Convert the above ER diagram to relations in…

A: SOLUTION -From the above Entity Relationship Diagram, we can identify three tables. They are1)…

Q: N:M relationships  a.) require that the primary key from each table is deleted.   b.) require that a…

A: Here is the solution;

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: Atuple in a database is: A A field. A record, An entity. A relation C D

A: A tuple is a row also known as one record stored in table.

Q: Analyze the following relation, a) write the types of functional dependencies; c) perform the…

A: For the above table, keys are not defined. Keys can be identified using real time conditions. For…

Q: What problems might arise from vertically partitioning a relation?

A: Issues of vertical partitioning Vertical Partitioning: The separation of the logical_ relation…

Q: What are three advantages of using a surrogate key rather than the main key to access a relation…

A: A surrogate key is a one of a type of identifier for a record or item in the table. It is comparable…

Q: Using this unnormalized table and the five functional dependencies and third normal forms. In other…

A: To find the normal forms for the given functional dependencies, we need to check each normal form…

Q: 1. Display employees (by name and address) from "Chicago" and with an annual salary between 60000…

A: The given problem has a set of tables with primary keys and foreign keys identified in each table…

Q: Create ERD or EERD of local school library with these requirements, and write relation schema…

A: answer is

Q: 1)A tuple is a named column of a relation. True or alse 2)Each attribute in a relation has a…

A: Since you have asked multiple question, we will solve the first 3 questions for you. If you want any…

Q: The bus ticketing report shown above displays snippet of the daily transactions. Based on this…

A: The given table is a dataset that stores the route, ticket, customer and travel dates for a bus…

Q: Consider the following relations: Employee(E_id: integer, E_name: string, Age: integer, Salary:…

A: Referential integrity constraints are rules that ensure that the references from one table to…

Q: Q1. Create these two relations, then insert the tuples. (Instructor relation: ID is PK, dept_name is…

A: Answer

Q: The following functional dependencies describe a relation that is in 2NF. Customer_ID, Store_ID ->…

A: Definition of 2NF is => There should not be any partial dependency. Partial Dependency means Part…

Q: write the schema that descibes the following relations: 1- The course relation course id title dept…

A: A Schema can be explained as a structure or the organisation chart of the database in the computer…

Q: Indicate all the functional dependencies and the normal form for each relation

A: The functional dependencies are the unique relationships between the attributes. For the table given…

Q: What are three signs that a surrogate key should be generated for the primary key of a relation…

A: A surrogate key is one that serves no practical or operational purpose. It's "artificial" and made…

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: Implement a new independent entity phone in the Sakila database. Attributes and relationships are…

A: There is only one error in the above code and that is the ALTER TABLE command on the address table.…

Q: Create an unnormalized relation using student and class entities.

A: Here, we have to create an unnormalized relation using student and class entities.

Q: Given the relation R(A, B, C, D, E, F), the following functional dependencies exist: B --> C, D D…

A: Given : R(A, B, C, D, E, F) B --> C, DD --> F

Q: just answer true/false  a]Disjointness means that every entity of a supertype must be an entity in…

A: As per bartleby guidelines we need to answer only the first 3 subparts in a question. a]Disjointness…

Q: The following relations kind a part of a on-line database (the relations area unit…

A: Due to the honor code, I can help you with 1st part. For 2nd part resubmit the question   From the…

Q: A) The following relations kind a part of a on-line database (the relations area unit self-…

A: The physical ER(Entity-Relationship) diagram is it is physically connected with the database schemas…

Q: 19. The ______ is the one in which the primary key of one relation is used as a normal attribute in…

A: Referential relation is the relationship that can be defined between two tables using common…

Q: Indicate all the functional dependencies and the normal form for each relation. Decompose your…

A: Indicate all the functional dependencies and the normal form for each relation. Decomposeyour…

Q: • Students(stulD, lastName, firstName, major, credits) • Faculty (facID, name, deptName, rank) •…

A: The original query attempts to retrieve the class numbers of all classes taught by a faculty member…

Q: What is an unnormalized relation? Is it a relation according to the definition of the word relation?

A: In a database management system, a relation is a collection of interconnected tables or a single…

Q: Implement a new independent entity phone in the Sakila database. Attributes and relationships are…

A: SQL: Database management is done using a programming language called SQL, or Structured Query…

Q: A relation that has no transitive dependencies is in __________ normal form.

A: Normalization  in DMBS :  In designing the database, there is a requirement to remove all the types…

Q: Question 6 Inventory Database: Customers(custid, custName, address, phone, credit Limit)…

A: From the given information in the question, to display the customer ID and the number of orders for…

Q: question one: defined the following relation on A={0,2,5,6} Answer each of the following questions…

A: Question one: Reflexive relations: A relation is reflexive if (a, a) ∈ R for all a ∈ A.Reflexive…

Q: For 1 through 4, state whether the statements are True or False (Do not provide any explanation or…

A: This question is a simple true and false question in which we have to state either true or false and…

Q: 8 Which of the following relationships models the following statement: "My friends have nice cars" *…

A: To Do: To identify the relation.

Q: UNION, INTERSECT, and MINUS work properly only if relations are union-compatible, which means that…

A: The given statement is: Union, intersect and minus work properly only if relations are…

Q: 5.6 LAB - Implement independent entity (Sakila) Implement a new independent entity phone in the…

A: First check whether phone_id column exists in your customer, staff, and store table or not. If…

Q: Convert the following Relation into INF, 2NF, and 3NF and show the functional dependencies.…

A: The answer is

Q: Which of the following statements corresponds to the second normal form for an entity - relationship…

A: A relationship must have a key,with simphleks domains for its attributes and all non-key attributes…

SQL Query

Structured Query Language is the full form of SQL. It is one of the standard languages to deal with the relational database. It is used to insert, update, delete, and search the records stored in a RDBMS. The relational databases are created and managed by using SQL.