 A database application with a Web interface had the advantage that it could be used on devices of different sizes, with different hardware, and with different operating systems.Examples of early database applications with Web interfaces include amazon.com, which used the Oracle relational database management system, the photo.net online community, whose implementation on top of Oracle was described in the book Database-Backed Web Sites (Ziff-Davis Press; May 1997), and eBay, also running Oracle.Electronic medical records are referred to on emrexperts.com, in December 2010, as "a software database application".