Which key uniquely identifies a row in a table?
A.
foreiqn
B.
primary
C.
local
D.
superkey
Which key uniquely identifies a row in a table?
Which key uniquely identifies a row in a table?
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Which key uniquely identifies a row in a table?
Which key uniquely identifies a row in a table?
A.
foreiqn
B.
primary
C.
local
D.
superkey
B.
The primary key constraint uniquely identifies each record in a database table. The primary key must contain unique values and it cannot contain NULL values.
Each table should have a primary key, and each table can have only one value.