A ____ holds one piece of information about an item or subject in the database.
Attribute
Field
Domain
None of these
The operation that displays all the tuples that exist in both the relations and discards the rest of the tuples
SELECT
PROJECT
UNION
INTERSECTION
A set of one or more attributes that can uniquely identified tuples within the relation is known as
Primary Key
Alternate Key
Foreign Key
The number of tuples in a relation is called the _____ of a relation.
Degree
Cardinality
domain
The operation that is used to extract specific attributes from all the tuples of a relation
All attribute combinations inside a relation that can serve as primary key are known as
Candidate Key
The software that allows the user to access the data contained in a database is known are
Database
Table
Relation
DBMS
The operation that is used to extract specific tuples from a given relation that satisfy a given condition for a relation
The set of permissible values of the same type for a column is known as
tuples
attributes
The _____ data model was developed by E F Codd of IBM in 1970.
Relational
Network
Hierarchical
