Introduction to SQL
Much of the world's raw data—from electronic medical records to customer transaction histories—lives in organized collections of tables called relational databases. Being able to wrangle and extract data from these databases using SQL is an essential skill within the data industry and in increasing demand. This course will teach you:
✓ How relational databases are structured
✓ Simple SQL commands to start your analysis
✓ The differences between SQL databases such as PostgreSQL and SQL Server
In just a few hours, you'll get to know the theory and the practice through bite-sized videos and interactive exercises where you can put your new-found SQL skills to the test.