What is a Join operation? What is meant when it is said that two relations are join

Question:

What is a Join operation? What is meant when it is said that two relations are join compatible? What is the difference between an Inner Join operation and an Outer Join operation?

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

Step by Step Answer:

Related Book For book-img-for-question

Data Modeling and Database Design

ISBN: 978-1285085258

2nd edition

Authors: Narayan S. Umanath, Richard W. Scammel

See More Books

Question Posted: Apr 21, 2016 06:30 AM

See More Questions

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...
What is a join dependency and in what way is it related to a multi-valued dependency?
Let a and b be relations with the schemas A (name, address, title) and B(name, address, salary), respectively. Show how to express a natural full outer join b using the full outer join operation with...
The graph of f is given. (a) Why is f one-to-one? (b) What are the domain and range of f 1 ? (c) What is the value of f 1 (2)? (d) Estimate the value of f -1 (0). 1
Garrison Shops had a SUTA tax rate of 2.7%. The state's taxable limit was $8,000 of each employee's earnings. For the year, Garrison Shops had FUTA taxable wages of $77,900 and SUTA taxable wages of...
Refer to the data for E5-16A. Flowever, instead of the FIFO method, assume Austins Jewelers uses the LIFO method. Requirements 1. Prepare a perpetual inventory record for the watches on the LIFO...
Identify factors that influence financial statements and their analysis. (p. 428) LO.1
An incomplete income statement and an incomplete comparative balance sheet of Deines Corporation are presented below. DEINES CORPORATION Income Statement For the Year Ended December 31, 2015 Net...
Perform the following accounting for the receivables of Cavanaugh and Johnson, an accounting firm, at December 31, 2020. Requirements Requirements 1 and 2. Prepare the T-accounts for accounts...
Ken Hensley Enterprises, Inc., is a small recording studio in St. Louis. Rock bands use the studio to mix high-quality demo recordings distributed to talent agents. New clients are required to pay in...
What is the difference between the result obtained from a section operation versus a Projection operation?
This question is based on the four relations shown below. Show the results along with the relational algebra expressions for the following four retrieval requests? a. Display the products and their...
Identify the best answer to each question: 1. Each of the following criteria is a factor when determining Special Revenue Fund property tax revenue recognition except a. Whether the taxes collected...
Feather Friends, Incorporated, distributes a high-quality wooden birdhouse that sells for $120 per unit. Variable expenses are $60.00 per unit, and fixed expenses total $200,000 per year. Its...
How much is the over/underapplied FOH? (PLASTIC PRODUCTS) A company manufactures plastic products for the home and restaurant market. The company also does contract work for other customers and...
In the circuit below, identify how the resistors are connected and then identify the quantity that must always be the same for these resistors.
Consider two firms that operate in a perfectly competitive market. While producing their products, these firms generate pollution. Assume that it is possible to reduce pollution by adopting an...
At 3 1 st March, 2 0 2 3 , AB Ltd , had an Authorized Capital of K 3 5 , 0 0 0 divided into 1 0 , 0 0 0 7 . 5 % noncumulative per share being due on 3 0 th June, 1 9 6 4 . per share paid, the...
In Problems 3138, factor, if possible, as the product of two firstdegree polynomials with integer coefficients. Use the quadratic formula and the factor theorem. 2x 2 + 15x - 108
Suppose the concentration of glucose inside a cell is 0.1 mm and the cell is suspended in a glucose solution of 0.01 mm. a. What would be the free energy change involved in transporting 10-o mole of...
Create the relational diagram to show the relationship between STORE and REGION.
Describe the type(s) of relationship(s) between EMPLOYEE and STORE.
Draw the ERD to show the relationships among EMPLOYEE, STORE, and REGION.
As a Financial Analyst in the Finance Department of Zeta Auto Corporation they are seeking to expand production. The CFO asks you to help decide whether the firm should set up a new plant to...
Chapter 4 When an Auditor finds misstatements in entities financial statements which may be the result of fraudulent act, what should be the role of an auditor under that situation? (2 Points)
Suppose the following input prices are provided for each year: Required: $

What is a Join operation? What is meant when it is said that two relations are join

Question:

Step by Step Answer:

A join operation is used to combine related tuples fr...View the full answer

Data Modeling and Database Design

Students also viewed these Computer Sciences questions