A composite key is used when _____________*1 pointmore than one key is needed to identify a recordit is difficult to identify a primary keymore than two keys are needed to identify a recordit is difficult to identify a secondary key

What is a composite key?Group of answer choicesA key that consists of two or more attributes.A key that is used to enforce foreign key constraints.A key that can have NULL values.A key consisting of a single attribute.

A composite key isA The primary key with AutoNumber as the field typeB Is a foreign key that uniquely identifies recordsC Made up of two or more fields to uniquely identify recordsD None of the above

hich statement correctly describes a secondary key?*1 pointAny key except the primary key used in accessing a tuple in a tableA key in a table that is duplicated to identify a tuple in another table.more than one field or combination of fields that can be used as a primary keya key that is a primary key in a different table

Which of the statement(S) are incorrect w.r.t primary key in SQL. A. A primary key can contain duplicate values to ensure redundancy.B. A primary key can be a composite key, consisting of multiple columns.C. A primary key must be an auto-increment field.D. A primary key cannot be null

The term used to describe an attribute that can function like a primary key is a*1 pointCandidate keySecondary keyForeign keyComposite key