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

Stub cables, Stub cables: The stub cables are for bi-directional data m...

Stub cables: The stub cables are for bi-directional data movement between LRU and current mode coupler.  The stub cables also supply power from the LRUs to the current couplers

What is atm cell, Header contains routing and error control information Pay...

Header contains routing and error control information Payload carries the actual user information, either voice, data or video

Computer help, Computer Help Inc. is a computer timesharing, and software d...

Computer Help Inc. is a computer timesharing, and software development and sales company. It has been successful in attracting clients for both sides of its business. Staff count

Number system , NUMBER SYSTEM:  We are familiar with decimal number sy...

NUMBER SYSTEM:  We are familiar with decimal number system which uses ten distinct symbols from 0...9, and has base 10. In the decimal number system a number n 4 n 3 n 2 n 1

Flowchart looping, create a flowchart showing average score for the 3 quizz...

create a flowchart showing average score for the 3 quizzes assume that there are 3 sections each having 5 students the only valid number to be entered is 1-100 for the quizzes shou

Describe the binary search algorithm, QUESTION 1 Describe the binary se...

QUESTION 1 Describe the binary search algorithm using an example of your own. QUESTION 2 (a) By showing all your workings, give a big-O estimate for f(x) = (x + 1)lo

Syntax of a Macro, The divisions which make a macro are: • Declaration of t...

The divisions which make a macro are: • Declaration of the macro Code of the macro Macro termination directive The assertion of the macro is done the following way: Name Macro [par

Microprocessor, how does microprocessor interpret with the burglar alarmn

how does microprocessor interpret with the burglar alarmn

Computer databases , COMPUTER DATABASES: As would be evident from the ...

COMPUTER DATABASES: As would be evident from the foregoing description, literature search is essentially a process of information retrieval. The term "Information Retrieval" w

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd