PostgreSQL - 8 | Primary Key & Foreign Key
Hello Friends, In this Video we learn about "PostgreSQL Primary Key & Foreign Key".
Description: Using this video, we are providing you three tables with which you can learn what is primary key and foreign key and how we can use in our table of these keys. Also, it is important to note that the most crucial things are sorted when you start practicing on your end. So, keep learning :)
Short Definition -
foreign key is a group of columns with values dependent on the primary key benefits from another table.
A primary key constraint indicates that a column, or group of columns, can be used as a unique identifier for rows in the table.
Thank you so much for watching our video, if you need any type of help then you can contact us.
Email - [email protected]
Author - / highonbrie
Personal - / bunty_soni_
Facebook - / gurujigyan