Differentiate between primary and unique key.
Answers
Answered by
4
Primary Key is a column that is used to uniquely identify each tuple of the table. It is used to add integrity constraints to the table. Only one primary key is allowed to be used in a table. ... Unique key is a constraint that is used to uniquely identify a tuple in a table.
Answered by
13
Answer:
see the pic ...........................
Attachments:
Similar questions
Social Sciences,
1 month ago
Math,
1 month ago
Biology,
1 month ago
Social Sciences,
2 months ago
Math,
2 months ago
Science,
8 months ago
Science,
8 months ago