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

Cryptography, Consider the one-time pad encryption scheme to encrypt a 1-bi...

Consider the one-time pad encryption scheme to encrypt a 1-bit message m, and assume m is chosen with uniform distribution from message space M={0,1}. Let E1 be the event "message

Constant bit rate atm theory, For the connections that request a static amo...

For the connections that request a static amount of bandwidth that is continuously available during the connection lifetime. Is intended to support real time applications requiring

System hardware, what problems does one encounter when you have more pipeli...

what problems does one encounter when you have more pipelines?

Write a long note on the types of charts, Question 1 Write a long note on ...

Question 1 Write a long note on the security features of Windows XP Question 2 Write a long note on computer peripherals, briefly describing some of the devices Question

Ip basics, IP provide connectionless service to upper layer IP protocol is ...

IP provide connectionless service to upper layer IP protocol is very simple could not guarantee the reliability of transportations IP protocol is Point to Point IP provide the unif

Pipelining concept, The easiest way to approach pipelining is to regard as...

The easiest way to approach pipelining is to regard as the three stage fetch, decode and execute instruction execution cycle outlined earlier. There are times during each of these

Describe circuit switching and message switching, Question 1 List the Basi...

Question 1 List the Basic essential components of a computer network Question 2 What are the functions of (i) Routers (ii) Bridges Question 3 What are the advantag

About the faculty posts, is there any oppurtunity for a mca to teach mcasub...

is there any oppurtunity for a mca to teach mcasubjects online

What is fragmentation? explain its significance, Question A What is fragme...

Question A What is fragmentation? Explain its significance Question B Briefly discuss the functions of transport layer Question C What is CIDR? Explain Question D W

Eeprom, Ask queswhat is the advanages of eeprom?

Ask queswhat is the advanages of eeprom?

Write Your Message!

Name

Email id

Message

Verfication Code

User Account

All Pages