Database Systems: Design, Implementation, & Management
Database Systems: Design, Implementation, & Management
13th Edition
ISBN: 9780357155868
Author: Carlos Coronel; Steven Morris
Publisher: Cengage Learning US
Question
Book Icon
Chapter 10, Problem 17RQ
Program Plan Intro

ANSI transaction isolation level:

Transaction isolation levels indicate the degree of the transaction which specifies protected or isolated transactions from other concurrent transactions. The ANSI SQL standard defines transaction management based on transaction isolation levels.

The isolation level is specified based on type of read that allows in the transaction. The type of read operation is divided into three types.

  • Dirty read
  • Non-repeatable read
  • Phantom read

Dirty read:

  • The transaction can read the data before it goes to the committed state is known as dirty read.

Non-repeatable read:

  • If the transaction read an attribute at time “t1”, and then the transaction reads the same attribute at time “t2” prints different results.
  • The original attribute can change their data.

Phantom read:

  • It returns additional rows when the transaction executes a query at different time to satisfy the query.

Blurred answer
Students have asked these similar questions
Information Security Risk and Vulnerability Assessment 1- Which TCP/IP protocol is used to convert the IP address to the Mac address? Explain 2-What popular switch feature allows you to create communication boundaries between systems connected to the switch3- what types of vulnerability directly related to the programmer of the software?4- Who ensures the entity implements appropriate security controls to protect an asset?         Please do not use AI and add refrence
Find the voltage V0 across the 4K resistor using the mesh method or nodal analysis. Note: I have already simulated it and the value it should give is -1.714V
Resolver por superposicion
Knowledge Booster
Background pattern image
Similar questions
SEE MORE QUESTIONS
Recommended textbooks for you
Text book image
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781285196145
Author:Steven, Steven Morris, Carlos Coronel, Carlos, Coronel, Carlos; Morris, Carlos Coronel and Steven Morris, Carlos Coronel; Steven Morris, Steven Morris; Carlos Coronel
Publisher:Cengage Learning
Text book image
Database Systems: Design, Implementation, & Manag...
Computer Science
ISBN:9781305627482
Author:Carlos Coronel, Steven Morris
Publisher:Cengage Learning
Text book image
MIS
Computer Science
ISBN:9781337681919
Author:BIDGOLI
Publisher:Cengage
Text book image
Management Of Information Security
Computer Science
ISBN:9781337405713
Author:WHITMAN, Michael.
Publisher:Cengage Learning,
Text book image
Systems Architecture
Computer Science
ISBN:9781305080195
Author:Stephen D. Burd
Publisher:Cengage Learning
Text book image
Fundamentals of Information Systems
Computer Science
ISBN:9781305082168
Author:Ralph Stair, George Reynolds
Publisher:Cengage Learning