A salary database is a collection of information that provides details about the salaries of various jobs across different industries. These databases often include data on job titles, locations, and experience levels, allowing users to compare salaries and understand market trends. They can be useful for job seekers, employers, and researchers looking to analyze compensation patterns. Many salary databases are available online and can be accessed for free or through subscriptions. Some popular examples include Glassdoor, PayScale, and LinkedIn Salary. These platforms gather data from employees and employers, ensuring that the information is as accurate and up-to-date as possible.