Possible to do a MySQL foreign key to one of two possible tables? - Stack Overflow
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Creating multiple tables and table relationships
mysql - Is it possible to reference one column as multiple foreign keys? - Stack Overflow
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Does a foreign key reference two tables? - Quora
Create multiple tables with a relationship primary key , foreign key and join multiple tables - YouTube
sql - Table with multiple foreign keys -- only one not null - Stack Overflow
2 Relational databases consist of multiple data tables linked by... | Download Scientific Diagram
How to Add Multiple Foreign Keys to Same Table and Not Get Confused
database - Two foreign keys from one table - Stack Overflow
What is a foreign key? (with SQL examples)
Joining Multiple Tables: Multiple Tables Cheatsheet | Codecademy
Primary and Foreign Key in SQL With Examples - DataFlair
How to Create a Table With Multiple Foreign Keys in SQL? - GeeksforGeeks
How to Add Multiple Foreign Keys to Same Table and Not Get Confused
Creating multiple tables and table relationships
sql - Connecting one foreign key to multiple tables (primary keys) - Stack Overflow
sql - Database Design, Table emulating foreign keys to multiple tables - Stack Overflow
What Is the Benefit of Foreign Keys in SQL? | LearnSQL.com
How to Create a Table With Multiple Foreign Keys in SQL? - GeeksforGeeks
mysql - Multiple foreign keys with different types of relationship in the same table (?) - Stack Overflow
