databases 1

Question 1

whats a database

Answer 1

persistant organised store of related data

Question 2

entity

Answer 2

a real world thing we store data on

Question 3

attribute

Answer 3

characteristic of an entity

Question 4

types of relational databases

Answer 4

one to one , one to many , many to many

Question 5

primary keys

Answer 5

A primary key is a unique identifier for each record in the table

Question 6

secondary key

Answer 6

an attribute normally given to fields in which indexing is useful

Question 7

foreign key

Answer 7

a primary key in another table.