On average what percentage of students fail a course

Assignment Help Database Management System
Reference no: EM132078924

You need help with this query in sql.

here are the tables

students(sid,name,age,gpa) // sid is the primary key

courses(cid,deptid, description) // cid,deptid is the primary key

professors(ssn,name,address,phone,deptid) // ssn is the primary key

enrollment(sid,cid,section,grade) cid makes reference to the courses table. // sid, cid, and section is the primary key

teaches(cid,section,ssn). cid, section makes reference to the enrollment table // cid, section is the primary key

On average what percentage of students fail a course? (total number of students that failed a course / total number of enrolled students). A student failed the course if he/she gets a 'D' or an 'F'.

Reference no: EM132078924

Questions Cloud

Find out and show the percentage of instances : Choose two factor variables. For each factor variable, show a barplot of the number of instances (or count) with a nominal value for each possible value.
Cell-surface receptors and intracellular receptors : Both cell-surface receptors and intracellular receptors can be involved in pathways that lead to changes in gene expression.
Compute the payback period : West Hill Hardware is adding a new product line that will require an investment of $1,500,000. Compute the payback period
Sickle-cell anemia is an example of co-dominance : In humans, sickle-cell anemia is an example of co-dominance, when considered at the molecular level.
On average what percentage of students fail a course : On average what percentage of students fail a course? A student failed the course if he/she gets a 'D' or an 'F'.
Prepare the direct materials usage and purchases budget : The Radco Company produces and sells pumpkin-sized Halloween product. Prepare the Direct Materials Usage and Purchases Budget
How does artificial selection and genetic engineering : How does artificial selection and genetic engineering both result in humans impacting the environment in other ways (pesticide use, transportation, etc)
What is the accounting equation : What is the accounting equation? What are the four basic financial statements? Describe the statement of cash flows, and explain why it is important
Resulting two parts of chromosome : Before cell division of somatic cells, each chromosome must be replicated. After replication, the resulting two parts of each chromosome are held together

Reviews

Write a Review

Database Management System Questions & Answers

  Knowledge and data warehousing

Design a dimensional model for analysing Purchases for Adventure Works Cycles and implement it as cubes using SQL Server Analysis Services. The AdventureWorks OLTP sample database is the data source for you BI analysis.

  Design a database schema

Design a Database schema

  Entity-relationship diagram

Create an entity-relationship diagram and design accompanying table layout using sound relational modeling practices and concepts.

  Implement a database of courses and students for a school

Implement a database of courses and students for a school.

  Prepare the e-r diagram for the movie database

Energy in the home, personal energy use and home energy efficiency and Efficient use of ‘waste' heat and renewable heat sources

  Design relation schemas for the entire database

Design relation schemas for the entire database.

  Prepare the relational schema for database

Prepare the relational schema for database

  Data modeling and normalization

Data Modeling and Normalization

  Use cases perform a requirements analysis for the case study

Use Cases Perform a requirements analysis for the Case Study

  Knowledge and data warehousing

Knowledge and Data Warehousing

  Stack and queue data structure

Identify and explain the differences between a stack and a queue data structure

  Practice on topic of normalization

Practice on topic of Normalization

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd