Relational Database Management Systems Quiz

A field that allows null values

A unique identifier for each record in a table (correct)

A foreign key in another table

A field that stores duplicate values

To enforce uniqueness of values in a column

To define the data type of a column

To establish a link between two tables (correct)

To store duplicate values in a column

To secure network communication

To query and manipulate data (correct)

To design user interfaces

To optimize database storage