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what is the difference between primary key & foreign key?
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Answer Posted / shaik gouse peer
Basic difference betweeen Primary key and foreign key is :
Primary key will not allow "Null values" and "Duplicate
values"
Foreign key will allow "Null values" and "Duplicte values"
and it refers to a primary key in anoter table.
| Is This Answer Correct ? | 130 Yes | 25 No |
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