Management of company's employee database.

Departments, projects, employee projects, and employees. Employee data, including ID, name, email, phone number, date of hiring, job title, pay, and department ID, is kept in the Employees table. Information about the organization's many departments is kept in the Departments table. Information about numerous projects, including their ID, name, start date, and termination date, is kept in the Projects database. Last but not least, the EmployeeProjects table creates a many-to-many link between workers and projects, allowing an employee to be connected to several projects and multiple employees to be involved in a single project.

In order to extract data from the database of the shopping mall, the query combines criteria from many tables. For transactions that fit the following requirements, it obtains the name of the store, the employee's first and last names, the customer's first and last names, the product name, the transaction date, and the total amount.