Acctivate includes the Microsoft SQL Server 2008 R2 Express database engine. This is the free edition of Microsoft SQL Server. The Express edition does have some limitations in which may warrant some companies to upgrade to the Standard edition of Microsoft SQL Server. This upgrade depends on specific business requirements, such as capacity and performance.
Read our Microsoft SQL Server Express Edition article for more information
We have also published instructions to Upgrade Microsoft SQL Server if you need to install a newer version for increased capacity.