A column or a combination of columns that can be used to identify one or more rows (tuples) in a table is called a ___________ of the table.
A. Key
B. Primary Key
C. Foreign Key
D. Table
Answer:A
A column or a combination of columns that can be used to identify one or more rows (tuples) in a table is called a ___________ of the table.
A. Key B. Primary Key C. Foreign Key D. Table