Thread: key

**rakesh** · 06-29-2011, 06:58 AM

there are three keys are used in database -
superkey
primarykey
candidatekey

please tell me describe these?

**betterlive** · 09-21-2011, 08:27 AM

thanks sharing information

**poicon** · 11-09-2011, 12:13 AM

Hi all
primary key are thoes which are use to differentiate each row.

**tradersway** · 11-19-2011, 06:17 AM

key is funda in data base that are combine to different different table.

**leonidasbourne** · 12-05-2011, 10:10 PM

There are following keys are used in database :-
1. Composite key.
2. Super key.
3. Primary key or unique key.
4. Candidate key.

**jassmee** · 03-19-2012, 07:33 AM

In Mysql has many key ....
1. composite Key
2.Primary key
3. foreign key...
4.super key..

**nikita123** · 03-21-2012, 01:16 PM

Hello i am new in this form

key