Generally, web-applications use databases to store data. Testers need to data in databases for their needs.
In this master class, I'll show you how you can automate the SQL database.
The question will be how the simplest possibilities, such as creating a SQL script to generate static test data. And more complex such as the creation of automated tests using DBUnit. Evaluatory database schemas using liquibase and apply the automated tests in a continuous integration system.