Question

Primary And Foreign Key ​

Answer 1

Answer:

Hyyy

Explanation:

Primary key uniquely identify a record in the table. Foreign key is a field in the table that is primary key in another table. By default, Primary key is clustered index and data in the database table is physically organized in the sequence of clustered index. ...

Answer 2

A FOREIGN KEY is a key used to link two tables together. A FOREIGN KEY is a field (or collection of fields) in one table that refers to the PRIMARY KEY in another table. ... The "PersonID" column in the "Persons" table is the PRIMARY KEY in the "Persons" table.