Distinct molecules called agglutinogens (a type of antigen) are attached to the surface of red blood cells. There are two different types of agglutinogens, type A and type B. Each type has different properties.
MDB: Geodatabase. The geodatabase is a collection of geographic datasets of various types, with the most basic types being vector, raster, and tabular data. There are three types of geodatabases: file, personal, and ArcSDE. Geodatabases are the native data format for ESRI's ArcGIS.
The ST_Geometry data type is a high-performance storage type provided as part of ArcSDE for Oracle that includes ISO- and OGC-compliant SQL access to geodatabase features. Beginning with the ArcGIS 9.3 release, it is the default feature geometry storage format in new installations of ArcSDE geodatabases for Oracle.