Consistency or data in dbms, computer science, Basic Computer Science

Assignment Help:

Consistency or data in DBMS

Consistency - data in DBMS(Database) is accurate in modeling real world, follows integrity constraints
User may ensure transaction consistent by itself
If DBMS is consistent before transaction then it will be after also.

System checks ICs & if they fail, the transaction rolls back (example is aborted).
DBMS enforces some Ics or depending on the ICs declared in CREATE TABLE statements.
DBMS does not understand the semantics of the data.

Related Discussions:- Consistency or data in dbms, computer science

Cprgm, A palindrome is a string that reads the same from both the ends. Giv...

A palindrome is a string that reads the same from both the ends. Given a string S convert it to a palindrome by doing character replacement. Your task is to convert S to palindrome

Finding average marks, Problem In the Excel sheet, input the marks of a...

Problem In the Excel sheet, input the marks of any 5 students with 5 subjects and find the average marks, maximum marks, minimum marks obtained by the student. Using Excel s

Briefly explain the stage and the timeline, Question 1 Briefly explain the...

Question 1 Briefly explain the Stage and the Timeline Question 2 What is Device Central? How it is useful for previewing mobile content? Question 3 Which are the f

Digital design system, Manipulate the following Boolean expression in such ...

Manipulate the following Boolean expression in such a way so that it can be implemented using exclusive-OR and AND gates only. AB''CD'' + A ''BCD'' + AB''C''D + A''BC''D

Browser cookies, Browser Cookies: A cookie is a small message sent by ...

Browser Cookies: A cookie is a small message sent by the Web server to a your web client. This message is stored by the browser as a text file. The basic purpose of cookie is

What is Shortest-Remaining-Time (SRT) Scheduling?, • The SRT is the preemp...

• The SRT is the preemptive complement of SJF and helpful in time-sharing environment. • In SRT scheduling, the process with the least estimated run-time to completion is run next,

Introduction to FCB , There are two kinds of FCB, the normal, whose length...

There are two kinds of FCB, the normal, whose length is 37 bytes and the expanded one of 44 bytes. The FCB is created of data given by the programmer and by data which it takes dir

Describe four types of abstracts, QUESTION 1 Write short notes on cont...

QUESTION 1 Write short notes on controlled vocabulary indexing. QUESTION 2 (a) List five types of abstracts. (b) Describe four types of abstracts. QUESTION 3

Spidering or web crawling, Spidering or Web crawling: Spider or Web c...

Spidering or Web crawling: Spider or Web crawler is a computer program that browses the web pages of WWW in a systematic, automated manner. Search Engines use spider for gett

Java, what is meant by deliverable in strus base applications

what is meant by deliverable in strus base applications

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages