Netcad Spatial type is supported in all DBMS's seen in the list. Netcad Spatial is Netcad's Database geometry format. It recognizes and uses native geometry types in environments with geometry support (Oracle SDO, SQL Server 2012 and PostgreSQL (with PostGIS), etc.). Netcad Spatial is used for Oracle with no SDO option.
Netcad GIS supports LRS (Linear Referencing System) in all environments. For details of LRS (?)