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...

Difference between primary key and unique key ?

Answer Posted / saga

--->We Define only one PK per table but it should have one
or more UK.
--->PK does not contain null but UK contains null.

Is This Answer Correct ?    2 Yes 0 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is tns name?

1026


what is the dual table in oracle?

1038


What is an oracle wallet?

988


How a tablespace is related to data files?

1162


What is the difference between view and materialized view in Oracle?

1204


What are the limitations of check constraint?

1073


HI ALL, CAN ANYONE TELL ME THE DIFFERENCES BETWEEN SQL CLUSTURS,MSQL CLUSTERS,ORACLE CLUSTERS.......THANKS IN ADVANCE

2296


In not less than 100 words what's the main difference between Rolap and Molap in ORACLE ?

2336


How do I spool in oracle?

1060


How to get execution path reports on query statements?

1043


hi friends i completed b.com 2004.i have 3y accounting exp. in manufacturing company.now i have completed oracle finance.pls suggest me how will get job in oracle.can i get job in oracle.

2422


how to clone 9i Database on to 10g Database.

2383


Why does Oracle not permit the use of PCTUSED with indexes?

2479


Does oracle database need java?

1066


How to define an oracle cursor variable?

1090