Computers and Technology, 16.11.2019 18:31 lilay30
What is the principle purpose of the primary key? (points : 3) primary keys uniquely identify a row of data within a database table.
keys used in first normal form are known as primary keys. second normal form keys are known as secondary keys, and 3nf keys are called tertiary keys.
primary keys uniquely identify a column of data within a database table.
the primary key secures the table by locking it against unauthorized access.
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