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Similarity between unique and primary constraint

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Similarity between unique and primary constraint

Posted by Vinod Kumar 4 years, 10 months ago

CBSE > Class 12 > Informatics Practices

2 answers

Shradha Malpani 4 years, 9 months ago

Both Primary Key and Unique constraints do not allow similar values in a field.

Gurpreet Walia 4 years, 9 months ago

Primary does not accept the null values and it is only one But unique accepts null values

ANSWER

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