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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
Evaluate which method would be efficient for planning proactive concurrency control methods
Come up with an imaginary peripheral device which you think would be useful in personal or business use. Describe what this device would do.
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.
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. 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
Please provide with a detailed answer using DYNAMIC PROGRAMMING
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.
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 throughput rate
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?
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.
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