For an instructor lead, in-depth look at learning SQL click below.
Structured Query Language (SQL) is an essential tool used by data scientists and analysts in their daily operations. SQL allows you to communicate with databases, extract vital information, and conduct useful analytical tasks, making it a vital skill to have in your data science toolkit. To help you learn and master SQL we have prepared a selection of the top SQL courses that can benefit newbies and seasoned professionals alike.
1. SQL for Data Analysis: Weekender Crash Course for Beginners.
This course is ideal for beginners since it provides an excellent introduction to SQL. By the end of the course, you’ll be comfortable with basic queries such as SELECT, WHERE, and JOIN. Check an example below to have an idea of what you’ll learn:
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/* retrieve all columns from a specific table */ SELECT * FROM Customers |
2. Complete SQL Bootcamp 2021: Go from Zero to Hero
For individuals who prefer a more comprehensive approach, this course promises to take participants from beginners to advanced users. The course covers essential commands, complex queries, and even introduces PostgreSQL. See example:
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/* counting the number of customers in a table */ SELECT COUNT(*) FROM Customers |
3. SQL for Data Science
This course is tailored for data science enthusiasts. It provides foundations of SQL manipulation specifically focused on the needs of data scientists. You’ll understand complex commands and work with large databases. See below an example:
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/* retrieval of distinct customers from a specific city */ SELECT DISTINCT CustomerName FROM Customers WHERE City = 'London' |
4. Master SQL for Data Science
It’s an advanced SQL course where you will dive deeper into the language. It focuses on more complex commands, performance tuning, and data warehousing concepts to best serve the data science jobs. An example of the code that you’ll learn is:
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/* update customer's city information in the database */ UPDATE Customers SET City = 'London' WHERE CustomerID = 1 |
Conclusion
These are just but a few excellent courses to help you understand SQL better for your career in data science and analytics. Remember, the key to mastering SQL is practicing, so after you learn a new command, find real data to practice and improve your skills.