1
Q
What is the primary key?
A
A unique identifier (field) for each record in a table
2
Q
What is a foreign key?
A
A field in one table that uniquely identifies a record in another table (i.e. is the primary key in another table)
3
Q
What is a relational database?
A
A database that uses foreign keys to link multiple different tables together
4
Q
What is a compound key?
A
A key that consists of two or more fields used to identify a record uniquely
5
Q
What is unstructured data? (name some examples)
A
Data without a clear structure (e.g. emails, images, PPTs)
