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...

is that compulsory to have Primarykey-forignkey for joints
(outer inner,equal)

Answer Posted / balakrishna

Primarykye-Foreign key relation ships are not compulsory to
join two table, but it is recommended to have.

Is This Answer Correct ?    5 Yes 1 No



Post New Answer       View All Answers


Please Help Members By Posting Answers For Below Questions

What is benefit of using preparedstatement in java?

979


What are the differences between setmaxrows(int) and setfetchsize(int)?

1111


How does jdbc work?

927


Does sql allow null values ?

1034


What is the major difference between java.util.date and java.sql.date data type?

1026


How many types of statements are there in jdbc?

977


How to update a resultset programmatically?

1144


Does the database server have to be running Java or have Java support in order for my remote JDBC client app to access the database?

1018


What is jdbc and jpa?

1069


Can we have foreign key reference to a non primary key column ?

1030


Why can't I invoke the ResultSet methods afterLast and beforeFirst when the method next works?

1263


What is the use of statement in jdbc?

986


What is the significance of DataBaseMetaData.tableIndexStatistics? How to obtain and use it?

1039


Is jdbc open source?

926


What are temp tables ?

1022