dbExpress driver for MS SQL Server (DbxSda) provides access to MS SQL Server database. It works using high performance Microsoft OLE DB technologies. DbxSda supports MS SQL Server 2005, SQL Server 2000 and SQL Server 7.
dbExpress driver for InterBase (DbxIda) provides access to IB, Firebird and Yaffil databases. It directly uses InterBase client software fo server connection. DbxIda supports InterBase from version 5.x and up, Firebird 2.x, 1.x versions and Yaffil.