A database is an organized collection of structured information stored electronically and managed by specialized software called a database management system (DBMS). Unlike simple files or spreadsheets, databases can efficiently store, retrieve, update, and analyze vast amounts of interconnected data. Governments rely heavily on databases for property records, taxation, licensing, permits, vital statistics, health records, and countless other functions. Modern databases use various structures: relational databases organize data in linked tables, while NoSQL databases handle less structured information. Database security is critical for protecting sensitive personal information. When you interact with government services online—checking property taxes, renewing licenses, or accessing health records—databases are working behind the scenes to retrieve and update your information.