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WHAT IS THE DIFFERENCE BETWEEN CANDIDATE KEY ,COMPOSITE KEY
AND PRIMARY KEY.
THAN U.
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Answer / sakthi
Primary key:
It is an unique identifier, it wont allow null value, in a
table there will be only one column as primary key.
Composite key:
It same as Primary key but combination of more that one
column.
| Is This Answer Correct ? | 14 Yes | 2 No |
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