What are domain constraints, Database Management System

What are domain constraints? 

A  domain is  a  set  of  values  that  might  be  assigned to an attribute  .all  values that appear in a  column of a relation must be taken from the similar domain. 

 

Posted Date: 7/27/2013 7:15:13 AM | Location : United States







Related Discussions:- What are domain constraints, Assignment Help, Ask Question on What are domain constraints, Get Answer, Expert's Help, What are domain constraints Discussions

Write discussion on What are domain constraints
Your posts are moderated
Related Questions
Explain four causes for failures in data warehouse projects

Explain the B + tree? B + tree is a type of tree which denotes sorted data in a way that permits for efficient insertion, retrieval and removal of records, each of which is

What are the parts of SQL language? The SQL language has various parts: data - definitition language  Data manipulation language  View definition  Transaction contr

What is inheritance? Define it in detail?  Inheritance Inheritance can be at the levels of types, or at the level of tables we first consider inheritance of types, then i

Differentiate between logical database design and physical database design. Show how this separation leads to data independence? Basis Logical Databas

The following variant of the primary copy asynchronous-update replication protocol has been proposed for totally replicated systems. (a)  A transaction executing at site A updat

Question : (a) Differentiate between database integrity and database security (b) Database security involves measures to avoid loss of privacy and loss of confidentiality. D

How to design a formal and exact model How to design a formal and exact model of real-world problems by applying findings of analysis phase of OMT. The object design phase find

Find out the names and company names of all employees sorted in ascending order of company name and descending order of employee names of by which company. SELECT EMPLOYEE_NAME,

Logical Operators Rules of Precedence: Order evaluated Operator 1 All comparison operators 2