Find all instructors earning the highest salary

Assignment Help Basic Computer Science
Reference no: EM131058150

Write the following queries in relational algebra, using the university schema.

a. Find the titles of courses in the Comp. Sci. department that have 3 credits.

b. Find the IDs of all students who were taught by an instructor named Einstein; make sure there are no duplicates in the result.

c. Find the highest salary of any instructor.

d. Find all instructors earning the highest salary (there may be more than one with the same salary).

e. Find the enrollment of each section that was offered in Autumn 2009.

f. Find the maximum enrollment, across all sections, in Autumn 2009.

g. Find the sections that had the maximum enrollment in Autumn 2009

Reference no: EM131058150

Questions Cloud

Question regarding the sample proportion : Find the test statistic that would be used for a test of H0: p = 0.3 versus Ha: p ≠ 0.3, given a sample proportion of 0.35 from a sample size of 200.
Design a database for an airline : Your design should include an E-R diagram, a set of relational schemas, and a list of constraints, including primary-key and foreign-key constraints.
How does seniority play a role in how overtime is scheduled : If an overtime list is created, how should it be managed since there are certain workers qualified for some tasks but not others? Should there be several task specific lists created, or an overall shop list? If a listed is created for overtime, ma..
Mean length of jail time : Suppose that it is somehow known that the population standard deviation is 1.5. If you were conducting a hypothesis test to determine if the mean length of jail time has increased, what would the null and alternative hypotheses be? The distributio..
Find all instructors earning the highest salary : Find the IDs of all students who were taught by an instructor named Einstein; make sure there are no duplicates in the result.
Need to write r code and proof : Problem 4: Antimicrobial resistance (AMR) is becoming a significant problem due to overuse of antimicrobial drugs. The level of AMR can be estimated by testing isolates obtained from samples (say from retail chicken). Suppose that Y isolates test ..
Probability of observing a sample mean : Find the probability of observing a sample mean of 0.985 liters or less in a sample of 70 bottles, if the beverage dispensing unit functions properly.
Total current liabilities for the same period : Total current assets for a firm at the end of 2014 were $2,550,100. Total current liabilities for the same period were $1,980,312. Net working capital at the end of 2014 was:
Which of the constraints can the system check automatically : Which of these constraints can the system check automatically? Explain your answer.

Reviews

Write a Review

Basic Computer Science Questions & Answers

  Evaluate which method would be efficient for planning

Evaluate which method would be efficient for planning proactive concurrency control methods

  Eassy on imaginary peripheral device

Come up with an imaginary peripheral device which you think would be useful in personal or business use. Describe what this device would do.

  Use openoffice software to build tables

PART 1 You are required to use OpenOffice software to build tables, write, and execute queries.Step 1Build a Database named DBMS Course Project. The database should include following tables.

  Determine the torque m required to overcome friction

The collar bearing uniformly supports an axial force of P = 800 lb If the coefficient of static friction is µs = 0.3 determine the torque M required to overcome friction.

  Explain java data streams

Explain Java data streams. How do we move different types of data from one place to another in Java. What different types of data streams are there?

  Force shutdown a pc

Force shutdown a PC

  Dynamic programming

Please provide with a detailed answer using DYNAMIC PROGRAMMING

  Write a method named longestsortedsequence

Write a method named longestSortedSequence that accepts an array of integers as a parameter and that returns the length of the longest sorted (nondecreasing) sequence of integers in the array.

  What information off of the pc will help you locate drivers

With your personal desktop or laptop you need to create two checklists (Pre-installation & Postinstallation) of how you were to change your OS. Using either your home computer or the schools you need to go to that machines vendors website and locate ..

  Which technology half or full duplex has a lower effective

Which technology (half or full duplex) has a lower effective throughput rate

  How much faster will a 64-cpu system run than a 1-cpu system

If the bus is busy, the requesting CPU is put into a FIFO queue. How much faster will a 64-CPU system run than a 1-CPU system?

  Several telephony technologies currently available

2. Based on your research, write an 6-8 page paper that researches the concept of internet telephony, as well as providing an analysis and comparison of several telephony technologies currently available.

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