SQL databases are relational and use structured query language for defining and manipulating data, which is well-suited for complex queries. NoSQL databases, on the other hand, are non-relational and provide a mechanism for storage and retrieval of data that is modeled in means other than the tabular relations used in SQL. NoSQL databases are often more scalable and flexible, making them suitable for large volumes of data and rapid development.

I would start by explaining the basic structure of an SQL query, which typically includes SELECT, FROM, and WHERE clauses. I would then demonstrate how to write a simple query to retrieve data from a single table, such as 'SELECT * FROM employees WHERE department = 'Sales';'. I would emphasize the importance of understanding the table structure and the data types involved. Finally, I would provide hands-on practice exercises to reinforce the concepts.

To keep students engaged, I incorporate interactive elements such as real-world examples, hands-on exercises, and quizzes. I also encourage students to ask questions and participate in discussions. Additionally, I use visual aids like diagrams and charts to illustrate complex concepts. By varying the teaching methods and providing immediate feedback, I ensure that students remain interested and motivated throughout the lesson.

For students who struggle, I first identify the specific areas where they are having difficulty. I then provide additional resources such as tutorials, practice problems, and one-on-one sessions. I break down complex concepts into simpler steps and use analogies to make them more relatable. I also encourage peer learning by pairing students up for collaborative exercises. Regular assessments and feedback help track progress and adjust the teaching approach as needed.

I have extensive experience in teaching SQL to non-technical individuals, including professionals from various industries such as marketing, finance, and healthcare. I tailor my teaching approach to their background by using real-world scenarios and avoiding technical jargon. I focus on practical applications of SQL and provide step-by-step guidance. My goal is to build their confidence and ensure they can apply SQL skills in their work environment.