Candidate key, DOT NET Programming

What is a candidate key?

A table may have more than one combination of columns that could uniquely identify the rows in a table; every combination is a candidate key. During the database design you can pick up one of the candidate keys to be the primary key. For e.g., in the supplier table the supplierid and the suppliername can be a candidate key but you will only pick up the supplierid as the primary key.

Posted Date: 9/24/2012 4:33:29 AM | Location : United States







Related Discussions:- Candidate key, Assignment Help, Ask Question on Candidate key, Get Answer, Expert's Help, Candidate key Discussions

Write discussion on Candidate key
Your posts are moderated
Related Questions
Manifest Assembly metadata is always stored in the Manifest. Manifest consists of all metadata required to do the following things: 1) Version of assembly 2) Security ident

What is DMAIC and DMADV? The Six Sigma has two key methodologies viz. DMAIC and DMADV. The DMAIC is used to improve an existing business process. While DMADV is used to create

Show the code for the file dependency in cache? Partial Class Default_aspx Public Sub displayAnnouncement() Dim announcement As String If Cache("announcement") Is Noth

Project Description: PURPOSE Xconnect needs a fully automated system for receiving and processing Terminator cost sheets based on set business principle, convert the accepted

What are code contracts? Code contracts help you to state the code assumptions and statements stating the behavior of your code in a language-neutral way. The contracts are con

Develop Skype Recorder Application + Setup + Sourcecode + NICE UI Project Description: i need an application built which will allow user to record skype audio or video calls

How inheritance is achieved in VB.NET? The Inheritance is achieved by using "Inherits" keyword in the VB.NET (& For C# it is ":"). Easy Sample is provided in CD for understandi

What is the difference between int and int32. There is no difference among int and int32. System.Int32 is a .NET Class and int is an alias name for System.Int32.


Newly designed APK file for XBMC on an Android TV Box Project Description: We are seeking someone to have knowledge in Android's operating platform. We are a business that ma