If You Have Foreign Keys, Don't Update Fields That Aren't Changing. - Brent Ozar Unlimited®
How to create a SQL Server foreign key
How Add a Foreign Key Constraint (Make Relationships) in MySQL WorkBench - YouTube
Javarevisited: Difference between Primary key vs Foreign key in table – SQL Tutorial Example
PostgreSQL Foreign key - javatpoint
How can I manually create a foreign key? / Vertabelo / Vertabelo SA
What is a foreign key? (with SQL examples)
database first - Adding foreign key in visual studio 2012 - Stack Overflow
Foreign Keys | Enterprise Architect User Guide
mysql workbench - Can't set foreign key relationship - Stack Overflow
Create A Relationship - SQLyog Knowledge Base
database design - MySQL permits setting a foreign key constraint that references only one column of a composite primary key - Database Administrators Stack Exchange