What is the utility of primary key in database? Write distinct features of primary keys.❄ Short Answer❌No spam
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Answer:
The primary key is used to uniquely identify the record in a database. It can be a column or a set of columns in the table
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Answer:
primary key is used to identify the record in data base
Explanation:
feature
©it must contain a unique value for each record of table
©it does not contain null value
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