A relational database consists of a collection of

1. Tuples
2. Attributes
3. Relations
4. Keys

A(n) …………… in a table represents a logical relationship among a set of values.

1. Attribute
2. Key
3. Tuple
4. Entry

The term …………… is used to refer to a field in a table.

1. Attribute
2. Tuple
3. Row
4. Instance

A …………… is a property of the entire relation, which ensures through its value that each tuple is unique in a relation.

1. Rows
2. Key
3. Attribute
4. Fields