Interactive Study Module

Constraints: PRIMARY KEY, FOREIGN KEY & UNIQUE

By Bravion EDU SQL Team

7 min read

Lesson Overview: Constraints: PRIMARY KEY, FOREIGN KEY & UNIQUE

SQL • Level 2: Intermediate Core & Flow

This is lesson 10 of 19 in the SQL track (Level 2: Intermediate). Structured Query Language for managing, querying, and updating relational databases.

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The full written walkthrough for "Constraints: PRIMARY KEY, FOREIGN KEY & UNIQUE" has not been published yet. Use the sandbox below to experiment, and use the module outline to move to neighbouring lessons.

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Where This Lesson Fits

Module: Level 2: Intermediate Core & Flow (5 lessons)
Previous lesson: LEFT JOIN, RIGHT JOIN & FULL OUTER JOIN
Next lesson: Subqueries & Correlated Subqueries

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