You are a database engineer and the client wants you to solve the following business problem for a database system: "For each course find the number of students that got a grade of 90% or better. Show the title of the coursesand the average GPA of all the students in those courses (taking into account only students with GPA greater than 3.0)*After analyzing the problem, you came up with two possible queries that may lead to the correct output:"SELECT Course.title as Course, avg(Student.gpa) as StudentGPA FROM Student, Enrollment, Course WHERE Course.id = Enrollment.course_id AND Student.id = Enrollment.student_id AND Course.name = "CSC675" ANDEnrollment.grade >= 90 GROUP BY Course.title HAVING StudentGPA > 3.0";"SELECT Course.title as Course, avg(Student.gpa) as Student GPA FROM Student JOIN Enrollment ON Student.id = Enrollment.student_id JOIN Course ON Course.id = Enrollment.course_id WHERE Course.name = X ANDEnrollment.grade >= 90 AND StudentGPA > 3.0 GROUP BY Course.title";Which of the queries is the one that will output the correct data for this business problem?a. None of themb. Both of themc. The first queryd. The second query

Business Problem Recap:For each course, find the number of students that got a grade of 90% or…

Answered: You are a database engineer and the…

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

See similar textbooks

Similar questions

q4- Choose all that apply
Database systems In SQL MurachCollege database. Provide a list of all of the students, the number of courses they are taking, and the number of different instructors they have across all of their courses. The first column should provide the last name of each student (column titled Student Last Name). The second column should provide the number of courses that each student is taking (column titled Number of Courses). The third column should provide the number of different instructors that each student has for all of the courses they are taking (column titled Number of Different Instructors). No other columns should be provided in the result. Organize the result by student last name in alphabetical order.
In OES4 database, we can verify the values stored in subtotal field by using the following 1: col gross_sales for 99999999 col subtotal for 99999999 select o.order_no,sum(qty*Unit_cost) Gross_Sales, sum(o.subtotal) subtotal from orders o, orderline ol, product p where o.order_no=ol.order_no and ol.product_no=p.product_no group by o.order_no; II: col gross_sales for 99999999 col subtotal for 99999999 select o.order_no,sum(qty*Unit_cost) Gross_Sales, sum(o.subtotal) subtotal from orders o, orderline ol, product p where o.order_no=ol.order_no and ol.product_no=p.product_no group by o.order_no; I & II: are correct I & II: are not correct | || I & II: are not correct I & II: are correct
Need help writing SQL queries for sample data base
In Oracle database, if we have any field such as Job_Title field in any of our table then we can use DECODE function to sort the result based on our own numerical value. This can be done by including the following in ORDER BY clause: 1: ORDER BY DECODE(job-title,'Manager',3,Assistant',2,'Sales Rep', 1) DESC II: ORDER BY DECODE(job-title,'Manager', 3,'Assistant',2, Sales Rep', 1) ASC III I and II are correct IV I and II are incorrect ||| IV || 1
True or False below: Given two relations named A and B, if we q-JOIN A and B, the maximum number of attributes in the result relation could be (the number of attributes of A) times(*) the number of attributes of B). * in an SQL SELECT statement means “all the tuples”. In relational algebra, Cartesian Product (X) can be implemented using the q-JOIN operator. Cartesian Product ISA q-JOIN where q-condition always evaluates to true. SQL is based on Predicate Calculus. A query in SQL always specifies what should be included in the query result.
Use your ERD to define the table structures in the database using SQL DDL commands to build your schema.
Composite main keys have prospective keys.
This is for SQL Give me a list of all of our vendors (by their name) and, if they have an invoice, give me the total number of invoices we have from them and the invoice date of their first invoice. The invoice date results should be provided in a way that shows the date only in the following format: mm/dd/yyyy (e.g. 10/04/2021)
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…
I need help with this question for my Database Management class for SQL developer. Thank you REP (REP_NUM, LAST_NAME, FIRST_NAME, STREET, CITY, STATE, POSTAL_CODE, COMISSION, RATE) CUSTOMER (CUSTOMER_NUM, CUSTOMER_NAME, STREET, CITY, STATE, POSTAL_CODE, BALANCE, CREDIT_LIMIT, REP_NUM) ORDERS (ORDER_NUM, ORDER_DATE, CUSTOMER_NUM) ORDER_LINE (ORDER_NUM, ITEM_NUM, NUM_ORDERED, QUOTED_PRICE) ITEM (ITEM_NUM, DESCRIPTION, ON_HAND, CATEGORY, STOREHOUSE, PRICE) Question: List TOY category items and orders placed for them. Report: Item_Num, Description, Order_Num, and Order_Date
I NEED HELP WITH THIS QUESTION FOR MY DATABASE MANAGEMENT CLASS FOR SQL DEVELOPER 5. Now compute Average GPA in each class. Display class_code, Class_GPA. Assume all courses are 3 credit courses. A general formula for GPA would be sum(gradepoints x Hrs)/sum(Hrs). Here you can just take an average of gradepoints as the credit hours are same for all courses.

SEE MORE QUESTIONS

Recommended textbooks for you

Database System Concepts

Computer Science

ISBN:

9780078022159

Author:

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

Publisher:

McGraw-Hill Education

Starting Out with Python (4th Edition)

Computer Science

ISBN:

9780134444321

Author:

Tony Gaddis

Publisher:

PEARSON

Digital Fundamentals (11th Edition)

Computer Science

ISBN:

9780132737968

Author:

Thomas L. Floyd

Publisher:

PEARSON

Database System Concepts

Computer Science

ISBN:

9780078022159

Author:

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

Publisher:

McGraw-Hill Education

Starting Out with Python (4th Edition)

Computer Science

ISBN:

9780134444321

Author:

Tony Gaddis

Publisher:

PEARSON

Digital Fundamentals (11th Edition)

Computer Science

ISBN:

9780132737968

Author:

Thomas L. Floyd

Publisher:

PEARSON

C How to Program (8th Edition)

Computer Science

ISBN:

9780133976892

Author:

Paul J. Deitel, Harvey Deitel

Publisher:

PEARSON

Database Systems: Design, Implementation, & Manag…

Computer Science

ISBN:

9781337627900

Author:

Carlos Coronel, Steven Morris

Publisher:

Cengage Learning

Programmable Logic Controllers

Computer Science

ISBN:

9780073373843

Author:

Frank D. Petruzella

Publisher:

McGraw-Hill Education

SEE MORE TEXTBOOKS