The AdsSQLServer class is a class library that descends from the DBServer class with some additional functionality specific to the AXSQL RDDs. The majority of its methods and properties are exactly the same as the DBServer class. Although the AdsSQLServer class isn’t required to use the AXSQL RDDs, only the most basic functionality will be available without it. Therefore it is highly recommended that it is always used with the AXSQL RDDs.