Define:-> Primary key, candidate key and alternate key.

1.	Define:-> Primary key, candidate key and alternate key.
Answer» Fr block krta patandraan ne....?? ? Ki hoya?? ?? Tu prhla prhla plz....?? A Primary Key is a column or a combination of columns that uniquely identify a record.The field which is eligible to become the primary key is called Candidate keys * Among the candidate key that don\'t form the primary keys are Alternate key

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