Database System Concepts
Database System Concepts
7th Edition
ISBN: 9780078022159
Author: Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher: McGraw-Hill Education
Bartleby Related Questions Icon

Related questions

Q: convert the model into relations and normalize.
A: Entity-relationship (ER): An entity-relationship (ER) model is a graphical representation of…
Q: Atuple in a database is: A A field. A record, An entity. A relation C D
A: A tuple is a row also known as one record stored in table.
Q: Assume a user establishes a new relation r1 that contains a foreign key that points to another…
A: The question is related to database foreign key.
Q: Under what conditions must a foreign key not be null?
A: Answer: So basically a foreign key is used for identifying a row of another table uniquely.…
Q: Which of the following is true? BCNF and 3NF are same. A relation in BCNF is always in 3NF A…
A: The data stored in a database can face the problem of data redundancy, which is the duplication of…
Q: Could you please define "triggers" for me? What purpose do they serve? [With Access 2016, how can…
A: Below is the definition and some key points about the triggers. I hope it will be helpful for you...…
Q: Write a program that prompts the user to enter a client's account ID, then displays the name of the…
A: i have provided a solution in step2.
Q: Consider the relation Project(pid,name,budget) with relation instances {(100,'GOTAM',30000),…
A: The cardinality of the above relation is 4  Cardinality is just number of tuples in a relation.
Q: If a DBMS enforces a DELETE RESTRICT option on the referential integrity constraint between SELLER…
A: Consider the given relation :
Q: What is a foreign key constraint? Why are such constraints important? What is referential…
A: Foreign key A column or columns of information in one table that link to the main key data inside…
Q: What distinguishes a primary key from a candidate key or a superkey?
A: Distinguishing between the words primary key, candidate key, and super key
Q: Consider the following relation for student records: GRADEREPORT(Student|D, StudentName,…
A: The relation is in 1NF because: Domain for attributes does not change. Every column/attribute has a…
Q: What distinguishes the two kinds of integrity constraints?
A: Introduction: In DBMS, integrity constraints are a collection of pre-defined rules that are…
Q: What are the distinctions between the two categories of integrity constraints?
A: Integrity constraints play a crucial role in ensuring the accuracy and consistency of data within a…
Q: In what way does the choice of a data typefor a field help to control the integrity ofthat field?
A: Lets see the solution.
Q: Assume the relation r is the only reference in the view v definition. Is it required that a user…
A: Answer: Views are virtual representations of the base table. Select access to a view does not imply…
Q: Assume a user creates a new relation r1 with a foreign key pointing to another relation r2. What…
A: If a user creates a new relation r1 with a foreign key pointing to another relation r2, the user…
bartleby

Concept explainers

Procedures in SQL
A pre-compiled stored procedure is a logical unit made up of one/more SQL statements (SQL stands for Structured Query Language). The database server saves it as an object. An SQL procedure is a collection of SQL statements and logic that is written and s…
Question

Assume a user establishes a new relation r1 that has a foreign key that points to another relation r2. On r2, what level of authorisation does the user require? Why shouldn't this be permitted without any kind of permission?

Expert Solution
Check Mark
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
See solutionCheck out a sample Q&A here
Step 1
VIEW
Step 2
VIEW
bartleby

Step by stepSolved in 2 steps

See solution
Check out a sample Q&A here
Blurred answer
Knowledge Booster
Background pattern image
Computer Science
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, computer-science and related others by exploring similar questions and additional content below.
Similar questions
Recommended textbooks for you
Text book image
Database System Concepts
Computer Science
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:McGraw-Hill Education
Text book image
Starting Out with Python (4th Edition)
Computer Science
ISBN:9780134444321
Author:Tony Gaddis
Publisher:PEARSON
Text book image
Digital Fundamentals (11th Edition)
Computer Science
ISBN:9780132737968
Author:Thomas L. Floyd
Publisher:PEARSON
Text book image
C How to Program (8th Edition)
Computer Science
ISBN:9780133976892
Author:Paul J. Deitel, Harvey Deitel
Publisher:PEARSON
Text book image
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781337627900
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning
Text book image
Programmable Logic Controllers
Computer Science
ISBN:9780073373843
Author:Frank D. Petruzella
Publisher:McGraw-Hill Education
SEE MORE TEXTBOOKS