As of November 2026, the most popular database management system (DBMS) worldwide was Oracle, with a ranking score of *****; MySQL and Microsoft SQL Server rounded out the top three. Although the ...

Users can find a list of primacy agencies' publicly maintained drinking water databases, whose data may be more-up-to date and detailed than at the EPA. This system offers the capability to query the ...

A database is one or more sets of data, for example numbers, characters and images, bundled together with software that enables data to be added, removed or retrieved. Databases can be used to store ...

EPA's MOtor Vehicle Emission Simulator is an emission modeling system that estimates emissions for mobile sources at the national, county, and project level for criteria air pollutants, greenhouse ...