Consider the bank database of Figure 2.18. Give an expression in the relational algebra for each of

Question:

Consider the bank database of Figure 2.18. Give an expression in the relational algebra for each of the following queries:

a. Find the name of each branch located in “Chicago”.
b. Find the ID of each borrower who has a loan in branch “Downtown”.

Fantastic news! We've Found the answer you've been seeking!

Step by Step Answer:

Related Book For book-img-for-question

Database System Concepts

ISBN: 9780078022159

7th Edition

Authors: Abraham Silberschatz, Henry F. Korth, S. Sudarshan

See More Books

Question Posted: Jun 13, 2022 05:05 AM

See More Questions

Consider the bank database of Figure 5.21. Let us define a view branch cust as follows: Figure 5.21 Suppose that the view is materialized; that is, the view is computed and stored. Write triggers to...
Consider the employee database of Figure 2.17. Give an expression in the relational algebra to express each of the following queries: a. Find the ID and name of each employee who works for BigBank....
Consider the employee database of Figure 3.19. Give an expression in SQL for each of the following queries. a. Give all employees of First Bank Corporation a 10 percent raise. b. Give all managers of...
Find the inverse function f -1 of function f. Find the range of f and the domain and range of f -1 . 2 S(x) = 2 cos(3x + 2): sxs+ 3
Rhaman Company had the following transactions in its first month of operations: 1. The owner invested $10,000 cash in the business, plus some office furniture and equipment that had originally cost...
The Sun is approximately 93 million miles from Earth. (a) What is this distance in millimeters? (b) How many Earths could fit side by side in this distance?
At a sudden contraction in a pipe the diameter changes from $D_{1}$ to $D_{2}$. The pressure drop, $\Delta p$, which develops across the contraction is a function of $D_{1}$ and $D_{2}$, as...
Souder, Oles, and Franek is an international consulting firm headquartered in Chicago, Illinois. The Entity-Relationship diagram in Figure shows a simplified version of the companys process for...
Discuss the differences between a voluntary change and an imposed or mandatory change. Describe one challenge and one success in each of these changes. Use one personal example and one workplace...
It is often said that consumers receive free content online. Is this the case? Why or why not?
Consider the time slot relation. Given that a particular time slot can meet more than once in a week, explain why day and time are part of the primary key of this relation, while end time is not.x
Construct a schema diagram for the bank database of Figure 2.18. Figure 2.18 branch(branch_name, branch_city, assets) customer (ID, customer_name, customer_street, customer_city) loan (loan_number,...
Describe the difference between a defined benefit pension fund and a defined contribution pension fund.
How many Asset accounts and subaccounts appear in your Chart of Accounts report? How many Liability accounts appear in your Chart of Accounts report?
Mary Smith opened Smith Interior Decorating Service on July 1, 2022. During July, the company completed the following transactions July 1 1 3 5 12 18 20 21 25 31 31 Invested $15,000 cash in the...
Dozier Company produced and sold 1,000 units during its first month of operations. It reported the following costs and expenses for the month: Direct materials Direct labor $ 89,000 $ 45,000 Variable...
a method that queries the database, retrieving and writing in a CSV file the crn, subject, course, section, days and time for all CSCI courses, in order according to the course number. You should be...
Study the scenario and complete the question(s) that follow. Geotrack Limited You are a partner in a medium-sized audit firm, KLMP Registered Auditors, and were approached by the board of directors...
(a) Prove that the set of all vectors (x, y,z)T such that x -y + 4z = 0 forms a subspace of R3. (b) Explain why the set of all vectors that satisfy x - y + 4z = 1 does not form a subspace.
If the jobs displayed in Table 18.24 are processed using the earliestdue-date rule, what would be the lateness of job C? TABLE 18.24 Processing Times and Due Dates for Five Jobs Job C D E...
Consider the relation of as shown below, which shows the result of the query ?Find the names of all customers who have a loan at the bank.? Rewrite the query to include not only the name, but also...
The outer-join operations extend the natural-join operation so that tuples from the participating relations are not lost in the result of the join. Describe how the theta join operation can be...
Consider the relational database of Figure. Give an expression in the relational algebra for each request: a. Modify the database so that Jones now lives in Newtown. b. Give all employees of First...
Because of its high dielectric strength, SF6 (sulfur hexafluo-ride) gas is widely used as an insulator and a dielectric in HV applications such as HV transform-ers, switches, circuit breakers,...
An eagle is flying horizontally at a speed of 2.9 m/s when the fish in her talons wiggles loose and falls into the lake 4.4 m below. Calculate the magnitude of the velocity of the fish relative to...
A 5.0 g bullet moving 325 m/s is shot into a 1.25 kg block, which slides for 1.35 seconds across the surface it is on before coming to rest. What is the average force of kinetic friction between the...

Consider the bank database of Figure 2.18. Give an expression in the relational algebra for each of

Question:

branch(branch_name, branch_city, assets) customer (ID, customer_name, customer_street, customer_city) loan (loan_number, branch name, amount) borrower (ID, loan_number) account (account number, branch_name, balance) depositor (ID, account_number)

Step by Step Answer:

a SELECT branchname FROM branch W...View the full answer

Database System Concepts

Students also viewed these Computer science questions