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...

If a table column has is UNIQUE and has NOT NULL, is it
equivalent to a PRIMARY KEY column?

Answer Posted / prashant t.

No.
It will same for doesn't allow null and duplicate values.
But, Primary key constrained applied Cluster index on that
column and unique key constraint non clustered index on
that column. that is the major differece still be there.

Is This Answer Correct ?    20 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What do you mean by merge in oracle and how can we merge two tables?

1049


Difference between inner join vs where ?

1033


How does oracle handle read consistency?

1097


What is a data lock in oracle?

1118


How to write numeric literals in oracle?

1182


What are the uses of Database Trigger ?

1718


What is the relation of a user account and a schema in oracle?

1080


How to use like conditions in oracle?

1055


Can we protect our pl/sql source code?

1042


how to join query for one source type is oracle another source type is sql server ?

2425


What are the attributes that are found in a cursor?

1070


When do I need to use a semicolon vs a slash in oracle sql?

1088


What types of joins are used in writing subqueries?

982


material view and view disadvantages?

1073


Explain overloading. Can functions be overloaded?

986