| ConnectionType | The Connection types. |
| DataAccess | Implements an ADO.NET SQL data access control layer (DE). |
| DataCommon | Provides common data methods. |
| MySqlDataAccess | Implements an ADO.NET MySQL data access control layer. |
| ProcedureParameter | Represents a Procedure Parameter. |
| ProcedureParameters | Represents a collection of LJCProcedureParameter objects. |
| ProviderFactory | Implements a data provider factory layer. (R) |
| TableMapping | Implements a helper class for creating table mappings. |