What is Alternate Key

Alternate Key: This is the candidate key which is not taken as the primary key of the table. They are named so because although not the primary key, they can still recognize a row.

 

Posted Date: 7/26/2013 6:11:55 AM | Location : United States

Ask an Expert

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

Write discussion on What is alternate key
Your posts are moderated

Write your message here..

Related Questions

Entity relationship diagram, The Enhanced Entity Relationship Diagram (ERD)... The Enhanced Entity Relationship Diagram (ERD) produced with a drawing or case tool. Your EERD must use a ''standard'' notation style such as Crows Foot or Chen. Please note that t

Explain about data independence, Data Independence This brings us to ou... Data Independence This brings us to our next topic: data independence. It is the property of the database which tries to make sure that if we make any change in any level of sc

A table joined with itself is called, A table joined with itself is called ... A table joined with itself is called ? A table joined with itself is known as self join table. Normal 0 false false false EN-IN X-NONE X-NONE

What subschema expresses, What subschema expresses ? A subschema expres... What subschema expresses ? A subschema expresses the external view. (External schemas are called also called as subschemas)

Write a short note on oracle instance, Write a short note on oracle Instanc... Write a short note on oracle Instance? Oracle Instances: An instance is the (executed) Oracle software and the memory they use. It is the instance which manipulates the data s

What is the need for triggers, What is the need for triggers? Triggers ... What is the need for triggers? Triggers are useful mechanisms for alerting humans or for starting particular tasks automatically when particular conditions are met.

Relational schema., pine vally company pine vally company

What is management system, What is Management System? A management syst... What is Management System? A management system is a set of rules and process which help us to create organize and manipulate the database. It also helps us to add, change delet

Distributed Database Management System, Types of Data fragmentation Types of Data fragmentation

How to rearrange classes and operations, Rearrange Classes and Operations ... Rearrange Classes and Operations Sometimes, the similar operation is defined across different classes and can easily be inherited from a familiar ancestor, but more often oper