What is foreign key in database?
A foreign key is a column or group of columns in a relational database table that provides a link between data in two tables and it acts as a cross reference between tables. Because it references the primary key of another table and thereby establishing a link between them.
- The foreign shows relationship between two tables.
- When the primary key is inserted in first table and when the first table connects with the second table in database.
- Then the relationship shows the link between the two tables in sql server.
Share This with your friend by choosing any social account
You may also read following recent articles
The Top 10 SEO Audit Tools for Supercharging Your Website's Performance!
MUHAMMAD SALMAN TAHIR 13-Sep-2023