Question: What is a primary key? A column or column ( s ) that uniquely identifies each row in a table. A column or column (

What is a primary key?
A column or column(s) that uniquely identifies each row in a table.
A column or column(s) that uniquely identifies each column in a table.
An attribute that describes a table-locking mechanism.
The best key to open a pirate's treasure chest.
What is a primary key? A column or column(s) that uniquely

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