Identify all of the incorrect statements that complete this sentence: A primary key is...(Choose three) (Choose all correct answers)
-One or more columns in a table that uniquely identifies each row in that table.
-Only one column that must be null.
-A single column that uniquely identifies each column in a table.
-A set of columns in one table that uniquely identifies each row in another table.
-Only one column that must be null.
-A single column that uniquely identifies each column in a table.
-A set of columns in one table that uniquely identifies each row in another table.
