You are provided with the Entity-Relationship Diagram below. Which of the following lines would appear in a SQL transaction that implements this conceptual model? Only select lines that are 100% logically correct, but do not worry about commas, capitalisation, and data types. module name name Quiz QuestionPool DrawsFrom text Releases number Question U`releasee_name` VARCHAR(30) FOREIGN KEY (`prereq`) REFERENCES `Quiz`(`name`) CREATE TABLE `Quiz'`( CREATE TABLE `Releases ( PRIMARY KEY (`releasee`, `prereq`) Prereq Releasee InPool answer

You are provided with the Entity-Relationship Diagram below. Which of the following lines would appear in a SQL transaction that implements this conceptual model? Only select lines that are 100% logically correct, but do not worry about commas, capitalisation, and data types. module name name Quiz QuestionPool DrawsFrom text Releases number Question U`releasee_name` VARCHAR(30) FOREIGN KEY (`prereq`) REFERENCES `Quiz`(`name`) CREATE TABLE `Quiz'`( CREATE TABLE `Releases ( PRIMARY KEY (`releasee`, `prereq`) Prereq Releasee InPool answer

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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Consider the following ER diagram: storcid address description value Displays Store Memorabilia The above diagram represents information pertaining to stores and the memorabilia that is displayed within the stores. a) Write the SQL statements to create the necessary tables to represent the above diagram, representing as many constraints as possible. Note: you do not need to worry about specifying types for the fields, but you do need to provide suitable foreign key option(s).
I need help with the SQL query for the following question: 1. Get a list of 5 reviews for shoppers in Chicago Here is the information on the field names: The table name is: Reviews Review Form Fields Product/ModelName: Product/Category: Product/Price: Retailer/Name: Retailer/ZipCode: Retailer/City: Retailer/State: Product/On Sale: Manufacturer/Name: Manufacturer/Rebate: Review/UserId: Review/Rating: Review/Date: Review/Text: Example of Review Form Filled out ProductModelName: Galaxy S4 ProductCategory: Smart Phone ProductPrice: 499 RetailerName: Bestbuy RetailerZipCode: 44114 RetailerCity: Cleveland RetailerState: OH ProductOnSale: No ManufacturerName: Samsung ManufacturerRebate: No ReviewUserId: xmm473 ReviewRating: 3 ReviewDate: 6/10/2012 ReviewText: overheats after 2 hours
Write a SQL query that retrieves the names and email addresses of all students who are enrolled in at least one course in the "Computer Science" department and have a graduation year of 2022 or later. Include the course name and instructor name for each enrollment in the output. Schemas of the tables are below. "students" table: student_id: unique identifier for the student name: name of the student email: email address of the student major: field of study for the student graduation_year: expected year of graduation for the student "courses" table: course_id: unique identifier for the course course_name: name of the course instructor_name: name of the instructor teaching the course. department: department offering the course. course_description: description of the course "enrollments" table: enrollment_id: unique identifier for the enrollment student_id: identifier for the student enrolled in the course. course_id: identifier for the course the student is enrolled in…
This doesn't answer the question I asked. This is for a different section. I got a solution for this question but it answered a different section. Could I please have a My SQL eer diagram that sets up the following queries. All books that are checked out are due back in two weeks, with no exceptions. The late fee is 50 cents per day. The librarian would like to have a query that generates an overdue book list each day so she can telephone the miscreants. The library would like a query to search for a book by its title and see if it is currently checked out. Sometimes members can’t remember the full name of the book so the query needs to be able to search by a part of the title. The library would like a query that can show them the Top 10 most popular books checked out over a particular date range. The library would like to know the most popular day of the week for library members to visit the library and check out books. The library would like to know which book categories are the most…
I need crow's foot diagram for my ms sql server hospital database project. I add the business rules and the assets I created below. Business Rules A patient can only visit a doctor.A doctor can examine many patients. An examination can be done by a doctor.A doctor can do multiple exams.A patient can request more than one exam from the doctor. Each staff member can only have one title.Some staff members may not have a title. A hospital can employ more than one doctorA doctor can work in a single hospital. A patient can give more than one test.Each assay can only be given by one patient. A prescription is for one patient only.A patient may have more than one prescription. It can contain many drugs in one prescription.The same medicine can be prescribed in many prescriptions. Only one patient can stay in a ward.More than one patient can stay in each room.A patient can stay in only one room. By the way, Please alert me if you think I have made the relational diagram wrong. I'm so grateful…
Task 2: The Driver Relationship team wants to arrange workshops and education materials to the drivers. However, the team wants to create clusters of the drivers based on their experience in InstantStay. To collect these detail, you will need to create a SQL function called DRIVER_STATUS to determine the level of the driver as follows: MASTER: more than 4 travels PRO: more than 2 travels ROOKIE: 2 or less travels In addition, run the function to verify it works as expected and send them back the driver levels. Task: Create the DRIVER_STATUS function to create clusters of drivers based on experience.
Create a SQL statement in MariaDB with the following columns and their aliases from the Employees table. Aliases should be created as seen including case sensitive. (A full statement is required, but doesnt need to be run with an output) Screenshot the code ONLY and attach. last_name - Name street_address - Local Address phone_number - Phone #
Consider the following schema of hotel reservations database: Hotel (Hotel No, Name, City) Room (Room No, Hotel No, Type, Price) Booking (Hotel No, Guest No, Date From, Date_To, Room No) Guest (Guest_No, Name, City) Write RA queries for the following: a) Get the details (names and price) of all hotels in California. b) Get the average price of a room grouped by city. c) Find the hotel name and city of the hotel with the highest priced room. d) Get the hotel names and room numbers of any hotel rooms that have not been booked.
Answer the following questions 1.Explain by using a practical scenario what the difference between a variable and a parameter are. 2. Using a practical scenario explain the difference between Desktop databases and Server Databases. 3. You have been hired as a Database Developer and you have been given the option to use a trigger and a procedure. When would it be best to use procedures? 4. Write a SQL statement that will create a database named Namibian_Team that will store data for all sporting events represented in the country using the Master database in MS SQL Server. 5. As a database developer, you have to explain with visual representations the difference between a logical design and a physical design
write SQL queries to create procedures for a database called Saleco. The database contains the following tables: customer, invoice, line, product, and vendor. A procedure called get_customer_invoices that takes a customer ID as input and returns a list of all invoices for that customer, along with the total amount due for each invoice. A procedure called get_vendor_products that takes a vendor ID as input and returns a list of all products sold by that vendor, along with the number of units sold and the total revenue generated for each product. A procedure called get_invoice_details that takes an invoice ID as input and returns a list of all products purchased on that invoice, along with the quantity purchased, the unit price, and the total price for each product.
Consider the following schemas: Employee(staffId, name, salary, depNo) primary key staffId foreign key depNo references Department(depNo) Department(depNo,depname, totalSal) primary key depNo and the following procedural SQL statement: CREATE TRIGGER mystery AFTER INSERT ON Employee FOR EACH ROW IF NOT (NEW.depNo IS NULL) UPDATE Department SET totalSal = totalSal + NEW.salary NEW.depNo WHERE depNo ENDIF / = Explain what this trigger does without referring to its code. Describe the effect on the database that it has.
This assignment is aimed at building an understanding of how to improve performance within databases by taking advantage the computers hardware by modifying MS SQL settings Prerequisites: Completion of Assignment 1B, reading of Module Readings and Slides. Run the following query to understand how much Memory is currently in use in the database: SELECT physical_memory_in_use_kb/1024 AS sql_physical_memory_in_use_MB, large_page_allocations_kb/1024 AS sql_large_page_allocations_MB, locked_page_allocations_kb/1024 AS sql_locked_page_allocations_MB, virtual_address_space_reserved_kb/1024 AS sql_VAS_reserved_MB, virtual_address_space_committed_kb/1024 AS sql_VAS_committed_MB, virtual_address_space_available_kb/1024 AS sql_VAS_available_MB, page_fault_count AS sql_page_fault_count, memory_utilization_percentage AS sql_memory_utilization_percentage, process_physical_memory_low AS sql_process_physical_memory_low, process_virtual_memory_low AS…