Write the Relation Model, using SQL, for the gig Relationship Set shown in this ER Model: The Band and Venue Entity Sets both have the conflicting name as their Primary Keys. Only the gig relation needs to be defined for this question.

Q: produce a list of relations indicating the primary key, columns and foreign keys.

A: Given data:Given columns:customerIDcustomerNamecustomerCurrentAddress…

Q: воок Book id Title Publisher_name 444 BOOK AUTHORSs Book id Author_name PUBLISHER Name Address Phone

A:

Q: So SQL does not suppor functional depency constraints. However, if the database system supports…

A: Step1:Functional dependency is a constraint the relationship between attributes in a relation.…

Q: Using your knowledge of the college environment, determine the functional dependencies that exist in…

A: Answer is given below .

Q: Transform the given ERD (given on next page) into Relational Model.

A: Given: Transform the given ERD (given on next page) into Relational Model.

Q: Consider the foreign key constraint from the dept name attribute of instructor to the department…

A: Given: Goal: We have to discuss the cases of foreign key referential integrity constraint violation…

Q: what is best way to represent below one to one relationship in the relational model? A)combine…

A: When the relationship between two entities(here Student and Preference) is one to one, then two…

Q: how do you translate an Entity Relational Diagram to a Relational Diagram?

A: We are going to learn conversion of Entity Relational Diagram to a Relational Diagram. It takes…

Q: What is the difference between the implementation of 1:M unary relationship and M: N unary…

A: GIVEN: What is the difference between the implementation of 1:M unary relationship and M: N unary…

Q: Write a relational mode for each of the case below. You can create our own attributes and provide…

A:

Q: This question is based on the following relation and sample data, where Employee Social Security…

A: Actually, database is a used to stored the data.

Q: Consider the following SQL query on the university schema:          select avg(salary)-(sum(salary)…

A: For numeric values it will always be zero. But when there is a null value the answer will be…

Q: In the case of a relational model, what would you call characteristics generally, and how would you…

A: The relational model for database management is a method for logically representing and managing…

Q: Given the relations a(name, address, title) and b(name, address, salary), show how to express a…

A: SQL query: select b.salary, a.title, coalesce(a.address, b.address) as address2, coalesce(a.name,…

Q: I have to generate a set of relations and functional dependencies which IS in BCNF, but IS NOT…

A: Answer is given below .

Q: Convert the ER diagram in the above question into relational model.

A: Relational Schema: A relational schema is an outline that explains how businesses store and organize…

Q: Write an SQL Assertion statement to enforce the functional dependency Title → Salary for the…

A: The above question includes two concepts of Assertion Statement and Functional Dependency Title->…

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 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: 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: Question: Do a Left Outer Join of relations D and C over their common attributes. D being the…

A: Below i have given query:

Q: Using your knowledge of the college environment, determine the functional dependencies that exist in…

A: The given information is:  (StudentNum, StudentName, NumCredits, AdvisorNum, AdvisorName,…

Q: Convert the preceding ER diagram into a relational DB schema. (I want you to do this yourself, not…

A: A Database is a collection of related  information. A relational schema is a design of the database.…

Q: Consider the following schema for STUDENT- Student (RollNo, Name, City, Father-Name, Branch, Sem,…

A: According to our guidelines we solve first 3:…

Q: Consider the following schema for a student relation. Student {Student ID, Last Name, First Name,…

A: Answer: our instruction is answer the first three part from the first part and I have given answered…

Q: Convert the following ER diagram into a relation table.

A: Given:Convert the following ER diagram into a relation table.

Q: Write the following queries in relational algebra Creature (name, category, status) FoodChain…

A: To understand the problem, lets construct the table:

Q: Consider the following relation: r (A1, A2, A3). For all the states of the relation, the result of…

A: Query : database query is a request for data from a database. Primary key :  Primary key constraint…

Q: Consider the bank database of Figure 16.9, where the primary keys are underlined. Construct the…

A: Following is the nested query  that retrieves the branch name with B and the account number with…

Q: If there are more than one possible candidate keys, provide some instances of relations that have…

A: A candidate key is set of keys which uniquely identifies records. It is possible to have multiple…

Q: For developing our queries, we will be using the following relational schema: Student(SID, name,…

A: Q1.  Here we need to join relation Course and Offering and use selection operator to select only…

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: If an employee can work for only one department and a department can have many employees (one to…

A: Dear learner, hope you are doing well, I will try my best to answer this question. Thank you!

Q: 2. For the following questions, please identify the candidate keys of the given relations. You need…

A: - We need to find the keys from the relations provided.   - Candidate keys are those minimal keys…

Q: What is the degree of a relationship? Give anexample of each of the relationship degreesillustrated…

A: Degree of Relationship The degree of a relationship is that the variety of entity varieties that…

Q: Consider the employee database of Figure 2.17. Give an expression in the relational algebra to…

A: The operations of relational algebra are given below– Select Operation (σ) Notation − σp(r)…

Q: en the candida

A: Solution - In the given question, we have to discuss the differences between the candidate keys and…

Q: Given the relation members(mid: INTEGER, name: CHAR(30), age: INTEGER, tier: INTEGER) Write a SQL…

A: Aggregate functions used: COUNT() -> calculate each tier with more than 2 members  -> Need to…

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: Show how to define the view student grades (ID, GPA) giving the grade-point average of each student,…

A: Given below is the required query.

Q: Enroll(SIN: Integer, CID: String, Term: String, Grade: Integer); Teaches(CID: String, Term: String,…

A: Constraints are the rules enforced on the data columns of a table. These are used to limit the type…

Q: When should you use a surrogate key instead of the primary key in a relation, and give three…

A: According to the specification of the surrogate key function provided by dbt, these keys are often…

Q: Although SQL does not support functional dependency constraints, if thedatabase system supports…

A: Given: Although SQL does not support functional dependency constraints, if thedatabase system…

Q: Which database relation(s) could be joined with the result of the query of the previous inquiry to…

A: Question 1RENAME loan (loan_number1, branch_name1, amount1) SET DIFFERENCE loan, loan_number1…

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.