4. The complete SQL bootcamp
Score – 7
Category – business
Rating – 4.65 (category rating 4.62)
Students enrolled – 37457 (category average 3063)
Price – $10 (originally $195)
With this course that ranks 4th on our list of best selling online courses on Udemy in 2017, you will learn to read and write complex queries to a database with PostgreSQL. This skill is applicable to other SQL databases too, and after completing this course you will be comfortable in putting SQL and PostgreSQL on your resume as well as in using SQL for data analysis. This course holds the fourth position thanks to the 37,547 enrolled students, way more than the category average and a rating of 4.65 which is also a bit above the category average (4.62).
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