A database is an organized collection of data, generally stored and accessed electronically from a computer system. Where databases are more complex they are often developed using formal design and modeling techniques.The database management system (DBMS) is the software that interacts with end users, applications, and the database itself to capture and analyze the data.
A database administrator uses software to store and organize data, such as financial information and customer shipping records. They make sure that data is available to users and is secure from unauthorized access.