Is foreign key a secondary key?

What is a secondary key key?

A secondary key is an additional key, or alternate key, which can be use in addition to the primary key to locate specific data.

Is foreign key a primary key?

A foreign key is a field in the table that is the primary key in another table.

What is a foreign key primary key and secondary key?

Foreign Key: Is the Primary Key one table appearing (cross-referenced) in another table. Secondary (or Alternative) Key: Is any field in the table that isn't selected to be any of the two types above. Hope this helps. Follow this answer to receive notifications.

How many secondary keys are there?

You can use a maximum of 16 distinct fields to define a primary key. The number of fields used in the primary key limits the number of fields in the secondary keys. Fields used by one key can also be used in another key; however, no more than 16 unique fields can be used to create primary or secondary keys.