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Thread: key
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06-29-2011, 06:58 AM #1
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key
there are three keys are used in database -
superkey
primarykey
candidatekey
please tell me describe these?
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09-21-2011, 08:27 AM #2
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11-09-2011, 12:13 AM #3
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Hi all
primary key are thoes which are use to differentiate each row.
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11-19-2011, 06:17 AM #4
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key is funda in data base that are combine to different different table.
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12-05-2011, 10:10 PM #5
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There are following keys are used in database :-
1. Composite key.
2. Super key.
3. Primary key or unique key.
4. Candidate key.
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03-19-2012, 07:33 AM #6
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In Mysql has many key ....
1. composite Key
2.Primary key
3. foreign key...
4.super key..
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03-21-2012, 01:16 PM #7
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Hello i am new in this form


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