Learn SQL basics in just 15 minutes with this tutorial focused on using SQL with MySQL. Topics covered include: - What SQL is ...

Calculate the total leave duration (number of days) and the total number of approved leave requests for each employee based on their approved leaves. Determine whether an employee has exceeded their ...

SQL is a tool that is widely used in the manipulation of data and featuring in the relational database. They are applied in querying, manipulating as well as reporting data and it is commonly used by ...

Now you now know how to [call functions](/tutorials/processing/calling-functions), [use variables](/tutorials/processing/using-variables), and [create your own ...