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Is primary key = unique key,not null?
If yes,please explain
IF No,please explain
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Answer Posted / edara satish
More or less both the keys sounds same, but the major
diffrence is where unique will allow null values, because
each null treated as a diffrent value internally. Incase of
primary key it will not allow any repeated data and null
data.
| Is This Answer Correct ? | 3 Yes | 3 No |
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