Glossary term
What is Foreign key?
In Apex Flow Academy, "Foreign key" means: A column that holds another table's key, which is how one table points at a row in another. It is taught in SQL: Ask Any Database Any Question. Related terms include Primary key, Query, Column and Clause. Every Apex Flow Academy course lists the official sources it checked.
- 1 course teaches it
- plain-word definition
The facts
What is Foreign key?
A column that holds another table's key, which is how one table points at a row in another.
Where is Foreign key taught?
Foreign key is defined in SQL: Ask Any Database Any Question.
Which lessons cover Foreign key?
These lessons name it in their title or objectives:
- SQL: Ask Any Database Any Question, lesson 1.1: Build Your Practice Database
The hard questions, answered straight
Bold questions people really ask. Each answer comes from the course data or a settled Academy fact.
Do I need experience before I learn Foreign key?
It depends on the course. Each course that teaches it lists its own prerequisites, and all are listed at beginner level:
- SQL: Ask Any Database Any Question: No coding or database experience is needed.