OO vs Relational DBMS

In this rearch paper executed by a team of 4 enterprise application developers including one of Luvare's employees we have researched the pres en cons between 4 different major
DataBase Management Systems. This research was in the context of Java enterprise applications. The tested DBMS were:

• MSSQL (Relational)
• MySQL (Relational)
• Versant (Object Oriented)
• Caché (Object Oriented)