Decent intro to basic SQL, but... – SQL Query - Learn How to create and manage Data Base in SQL! Review

Almost every topic has at least one typo in the explanation, sample script or output. Typos can be a good learning tool for simpler concepts -- they can be easy to identify -- but as topics become more sophisticated, the app becomes unusable.
Review by Deutritium on SQL Query - Learn How to create and manage Data Base in SQL!.