Database Concepts (8th Edition)
8th Edition
ISBN: 9780134601533
Author: David M. Kroenke, David J. Auer, Scott L. Vandenberg, Robert C. Yoder
Publisher: PEARSON
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Question
Chapter 6, Problem 6.10RQ
Program Plan Intro
Transaction:
A transaction is a small set of changes which must be made to the
- Read:
- Used to retrieve information form database
- Write:
- Used to insert or update the information or data from the database
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Give an example, other than the one in this text, of the lost update problem
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Chapter 6 Solutions
Database Concepts (8th Edition)
Ch. 6 - Prob. 6.1RQCh. 6 - Explain how database administration tasks vary...Ch. 6 - Prob. 6.3RQCh. 6 - Prob. 6.4RQCh. 6 - Prob. 6.5RQCh. 6 - Prob. 6.6RQCh. 6 - Prob. 6.8RQCh. 6 - Prob. 6.9RQCh. 6 - Prob. 6.10RQCh. 6 - Prob. 6.11RQ
Ch. 6 - Prob. 6.12RQCh. 6 - Prob. 6.13RQCh. 6 - Prob. 6.14RQCh. 6 - Prob. 6.15RQCh. 6 - Prob. 6.16RQCh. 6 - Prob. 6.17RQCh. 6 - Prob. 6.18RQCh. 6 - Explain the benefits of marking transaction...Ch. 6 - Explain the use of the SQL transaction control...Ch. 6 - Prob. 6.21RQCh. 6 - Describe statement-level consistency.Ch. 6 - Prob. 6.23RQCh. 6 - Prob. 6.24RQCh. 6 - Prob. 6.25RQCh. 6 - Prob. 6.26RQCh. 6 - Prob. 6.27RQCh. 6 - Explain what serializable isolation level is. Give...Ch. 6 - Explain the term cursor.Ch. 6 - Prob. 6.30RQCh. 6 - What is the advantage of using different types of...Ch. 6 - Explain forward-only cursors. Give an example of...Ch. 6 - Explain static cursors. Give an example of their...Ch. 6 - Prob. 6.34RQCh. 6 - Prob. 6.36RQCh. 6 - Prob. 6.37RQCh. 6 - Describe the advantages and disadvantages of...Ch. 6 - Prob. 6.40RQCh. 6 - Prob. 6.41RQCh. 6 - Prob. 6.42RQCh. 6 - Prob. 6.44RQCh. 6 - Prob. 6.45RQCh. 6 - What is the advantage of making frequent...Ch. 6 - Summarize a DBAs responsibilities for managing...Ch. 6 - Prob. 6.48RQCh. 6 - Prob. 6.49RQCh. 6 - Prob. 6.50E
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Similar questions
- Suppose you're interested in recording the history of changes made to the takes relation. Have any assurances been made that unauthorized database administrators (or those who manage to crack an administrator's password) would be recorded in an audit trail of modifications made by this implementation? Your reply need to include many specifics.arrow_forwardState some differences between non-clustered and clustured indexes.arrow_forwardWhat is the Big O categorization of the execution time for constructing the database? Of a single insertion? Of a single removal? Of a single add? Of a single search?arrow_forward
- Which of the studied data structures in this course would be the most appropriate choice for the following tasks? And Why? a. An Exam Center needs to maintain a database of 3000 students' IDs who registered in a professional certification course. The goal is to find rapidly whether or not a given ID is in the database. Hence, the speed of response is very important; efficient use of memory is not important. No ordering information is required among the identification numbers. b. A transposition table is a cache of previously seen positions in a game tree generated by a computer game playing program. If a position recurs via a different sequence of moves, the value of the position is retrieved from the table, avoiding re-searching the game tree below that position.arrow_forwardCan you think of scenarios in which using default values will improve data integrity as well as conditions in which doing so would damage it?arrow_forward6. Describe the deadlock prevention method using data ordering by drawing a picture (no hand-written work). Explicitly include why deadlocks are not possible.arrow_forward
- What are the key differences between a clustered index and a sparse index, and how does one go about creating a clustered index?arrow_forwardSay you're interested in recording every instance in which the takes relation was changed. Is there any assurance that an audit trail of modifications made by this implementation will include actions taken by malicious database administrators (or anybody who acquires access to the administrator's password)? Provide specifics in your reply.arrow_forwardWhat does a normalized version of the Index metadata connection look like, and what are some of the potential performance drawbacks of using a normalized version?arrow_forward
- Give a normalized version of the Index metadata relation and explain why using it will hurt performance.arrow_forwardNeed a c++ program to connect to this database and perform add, search, remove, display operations. -- students create table students ( student_id int, name varchar(50), dob date, phone int, email varchar(50), address text, year_level int, section varchar(2), primary key(student_id) ); -- staff create table staff(staff_id int,name varchar(50),address text,phone int, email varchar(50),position varchar(20),salary int,primary key(staff_id) ); -- book_subject create table( subject_id int primary key, subject varchar(50)); -- books create table books( book_id int,title varchar(50),published_year int,isbn int,cost int, subject_id int, primary key(book_id),foreign key(subject_id) references book_subject(subject_id) ); -- book_issue create table book_issue( issue_id int, issue_date date, staff_id intjumb, student_id int, book_id int, return_date da primary key(issue_id), foreign key(staff_id) references…arrow_forwardGive a normalized version of the Index_metadata relation, and explain why using the normalized version would result in worse performance.arrow_forward
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