Question

What is the relationship(similarity) between a Primary key and a Forgien Key?​

Answer 1

The relationship(similarity) between a Primary key and a Foreign Key is as follows:

• Primary Key and Foreign Key both indicate the Data Base Management System within an organization, and are key factors defining the relationship between various tables, and also for determining the ER Diagram of a Database.
• There are many similarities between Primary and Foreign Key, such as-

• Primary key and Foreign key, both are primary keys of their respective tables.

• Both of them indicate a particular column in a table consisting of unique values.

• Both of them are key factors for RDBMS (Relational Data Base Management System).