10 Databases

Question 1

What is an entity in databases?

Answer 1

Entity is a thing, a person or an event.

Question 2

What is a field in databases?

Answer 2

A field is a column in databases.

Question 3

What does a primary key store?

Answer 3

A primary key stores a unique data and every data in the primary key field is different.

Question 4

What is a query?

Answer 4

A query is an instruction to display information from a database.

Question 5

What is a record and what does it store?

Answer 5

A record is a row in database and it mainly stores information about an entity.

Question 6

What is a table in database?

Answer 6

A table is a collection of records.