Many large web applications have powerful databases behind the curtain. For instance, two applications were created to gather detailed statistical information and contact data input from dozens of remote locations, greatly facilitating reporting.
MS Access is a well-known database program that serves as a great tool for developing a website, and testing. However, because of the inherent architecture, Access is often not suitable for most large websites beyond the early development stage. SQL Server and mySQL, which are usually available with most hosting services, are designed to handle large amounts of data. In fact, even off the web, the best choice for large multi-user applications are the server-based databases like SQL Server, mySQL, and Oracle.