which term defines a column or group of Columns that refers to a primary key in different table a)Composite key b) Super key c) Foreign key d) Simple key

Q: The relational database below contains two related tables - “Supplier” and “Product”:   “Product”…

A: A foreign key is used to joins a table to another table by referencing its primary key. A foreign…

Q: The Member table will have the following columns: ID—positive integer FirstName—variable-length…

A: Creating a Member Table with SQL The task is to define a SQL statement that creates a 'Member'…

Q: A composite key is a column containing unique information. a. True b. False

A: To uniquely identify a record, a composite key consists of multiple attributes. However, this is not…

Q: 6. Write a SQL statement to create a simple table named teams including columns team_id int,…

A: Given:

Q: When is an index appropriate for a table?

A: Index: The index is used to access the data from the database speedily. Syntax of creating an index:…

Q: 1. How many reviews for every product?

A: Let us suppose that the table is created as given below: create database DB; use DB; create table…

Q: Is it possible for you to identify a composite main key from a candidate key?

A: What is candidate key ? The candidate key is the set of one or more attributes that uniquely…

Q: WEEK 9 SQL ASSIGNMENT   Part I: Complete the following exercise:   Create the following table with…

A: As per our guidelines, we are supposed to answer only 1st three parts. Kindly repost the remaining…

Q: 13. Which one of the following uniquely identifies the elements in the relation? a. Secondary Key b.…

A: Given options -  a. Secondary Key b. Primary key c. Composite key d. Foreign key

Q: What is the primary key for the APARTMENTS table? (It may be a composite key involving 2 or more…

A: The question asks to identify the primary keys and foreign keys for the "APARTMENTS" and "RENTERS"…

Q: student(sid, sname, sex, age, year, gpa) dept(dname, numphds) prof(pname, dname) course(cno,…

A: The question uploaded by you contains multiple subparts. As per our policy, experts are only…

Q: Which one of the following statements is wrong? ( ) Alternate keys are candidate keys. ( ) Foreign…

A: A primary key is a unique identifier for each record (row) in a database table. It ensures that each…

Q: 5. In the OrderItems table, display a count of the number of products where item_price is greater…

A: Algorithm:From the OrderItems tableFrom the OrderItems tableWhere item_price is greater than or…

Q: Get a list of 5 reviews for shoppers in Chicago Here is the information on the field names: The…

A: The details about the table are given with table name and different entities. Here the table name is…

Q: a) Write an SQL query to determine the total number of hours and the total number of lessons Tutor…

A: Solution : (a) Query :select SUM(Hours) as TotalHrs,sum(Lessons) as Totallsn from TUTOR_REPORT where…

Q: Objective: At the end of the exercise, the students should be able to: Use arithmetic operators and…

A: Given student course table for we have to create table and insert data and write the queries using…

Q: SQL DML/DDL  There are five tables describing employees of a company, departments, buildings, which…

A: Creating tables and inserting values: create table Employee (EID number primary key, Ename text,…