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

Help for final project, Hello i am a computer science student. now we are g...

Hello i am a computer science student. now we are going to start our final project. we want to work on Google App Inventor and we want to create mobile application. we are two grou

Rental model, Rental model: This has come into picture as Software as...

Rental model: This has come into picture as Software as a Service (SaaS) and Platform as a Service (PaaS) models have evolved over a period of time. Here, the buyer need not

What is the importance of using digital certificates, QUESTION a) Crypt...

QUESTION a) Cryptography is a set of techniques and mathematical algorithms. Describe four important areas where cryptography must be applied b) What is the importance of us

Assembly language, Questions 1) Polynomial Integrals Problem: Write an X86-...

Questions 1) Polynomial Integrals Problem: Write an X86-series assembly language program that calculates and prints out (in a nice form) the indefinite integral of a simple polynom

Define jumps and loops , The unconditional jumps in a written program in a...

The unconditional jumps in a written program in assembler language are specified by the jmp instruction; a jump is to moves the flow of the execution of a program by sending the co

Programmable rom (prom) , PROGRAMMABLE ROM (PROM): The user can program...

PROGRAMMABLE ROM (PROM): The user can program a PROM after purchase.  Each memory bit element in the PROM contains a nichrome or silicon link that acts as a fuse.  The user can

Algorithm implementation, Implementing the -Crochemore-Perrin algorithm Th...

Implementing the -Crochemore-Perrin algorithm The software must be functional, code must be clear and including comments and it must have a nice and decent user interface

Theory of computation, If L is a regular language show that L U {a} is regu...

If L is a regular language show that L U {a} is regular

Soft computing, Defination of Propositionl logic Predicate logic genertic a...

Defination of Propositionl logic Predicate logic genertic algorithm Hybrid system Optimization Fuzzy system rules Fuzzy system application

Necessary nurses records, Necessary Nurses Records The software shoul...

Necessary Nurses Records The software should generate all registers/reports in detail summary for various permutations and combinations of options. A powerful SQL (Structure

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