10. Types of primary keys: Simple

There are two types of primary keys:

  1. Simple
  2. Compound or composite

simple primary keySimple primary key

DEFINITION:

A simple primary key is made up of a single field only.

 

For example, 'customer ID' in the example on the right would be classed as a 'simple primary key'

 

 

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Click on this link: Simple Primary Key