Golgappa.net | Golgappa.org | BagIndia.net | BodyIndia.Com | CabIndia.net | CarsBikes.net | CarsBikes.org | CashIndia.net | ConsumerIndia.net | CookingIndia.net | DataIndia.net | DealIndia.net | EmailIndia.net | FirstTablet.com | FirstTourist.com | ForsaleIndia.net | IndiaBody.Com | IndiaCab.net | IndiaCash.net | IndiaModel.net | KidForum.net | OfficeIndia.net | PaysIndia.com | RestaurantIndia.net | RestaurantsIndia.net | SaleForum.net | SellForum.net | SoldIndia.com | StarIndia.net | TomatoCab.com | TomatoCabs.com | TownIndia.com
Interested to Buy Any Domain ? << Click Here >> for more details...

  1. Categories >> Software >> Databases >> SQL Server
  2. Suggest New Category

WHAT IS THE DIFFERENCE BETWEEN CANDIDATE KEY ,COMPOSITE KEY
AND PRIMARY KEY.
THAN U.

Question Posted / neha_chaudhary005


WHAT IS THE DIFFERENCE BETWEEN CANDIDATE KEY ,COMPOSITE KEY AND PRIMARY KEY. THAN U...

Answer / sakthi

Primary key:
It is an unique identifier, it wont allow null value, in a
table there will be only one column as primary key.

Composite key:

It same as Primary key but combination of more that one
column.

Is This Answer Correct ?    14 Yes 2 No

Post New Answer

More SQL Server Interview Questions

What is the use of @@spid?

0 Answers  

What types of Joins are possible with Sql Server?

0 Answers   NA,

how to know Who Is Blocking Your SQL Server?

4 Answers  

Hi, I Created 3 Tables Person(PersID[prkey],Name,Email,Password), Project(ProjName,ProjID[prkey],ProjLeader,ProjManager) & ProjectInvolvement(EntryDate,ProjID[frkey],PersID[frkey],ProjDuration). For this how can i INSERT,UPDATE & DELETE Through PROCEDURE? Please Post the Answer for me. Desai.

0 Answers  

How to create a Master database in SQL server ?

0 Answers   MCN Solutions,

what is hash nonclustered index

0 Answers  

What is mapping schema?

0 Answers  

What is the stored procedure?

0 Answers  

Is truncate a dml command?

0 Answers  

What is ssl in sql server?

0 Answers  

How to stop a loop early with break statements in ms sql server?

0 Answers  

System variable and temporary variables

0 Answers   Wipro,

For more SQL Server Interview Questions Click Here
Categories