FDO Open Source - Provider Overviews

Provider Description
OSGeo FDO Provider for ArcSDE Read/write access to feature data in an ESRI ArcSDE-based data store (that is, with an underlying Oracle or SQL Server database). Supports describing schema, and inserting, selecting, updating, and deleting feature data in existing schemas; does not support creating or deleting schemas.
OSGeo FDO Provider for MySQL Read/write access to feature data in a MySQL-based data store. Supports spatial data types and spatial query operations. Custom API can gather information, transmit exceptions, list data stores, and create connection objects. MySQL architecture supports various storage engines, characteristics, and capabilities.
OSGeo FDO Provider for SDF Read-write access to feature data in an SDF-based data store. Autodesk’s geospatial file format, SDF, supports multiple features/attributes, provides high performance for large data sets, and interoperability with other Autodesk products. Supports spatial indexing and is a valid alternative to database storage.
OSGeo FDO Provider for SHP Read/write access to existing spatial and attribute data in an ESRI SHP-based data store, which consists of separate shape files for geometry, index, and attributes. Each SHP file and its associated DBF file is treated as a feature class with a single geometry property. This is a valid alternative to database storage but does not support locking.
OSGeo FDO Provider for ODBC Read/write to feature data in a ODBC-based data store. Supports XYZ feature objects and can define feature classes for any relational database table with X, Y, and optionally, Z columns; does not support creating or deleting schema. Object locations are stored in separate properties in the object definition.
OSGeo FDO Provider for WFS Read-only access to feature data in an OGC WFS-based data store. Supports a client/server environment and retrieves geospatial data encoded in GML from one or more Web Feature Services sites. Client/server communication is encoded in XML with the exception of feature geometries, which are encoded in GML. Note that there is no public API documentation for this provider; all WFS functionality is accessible through the FDO API.
OSGeo FDO Provider for WMS Read-only to feature data in an OGC WMS-based data store. Web Map Service (WMS) produces maps of spatially referenced data dynamically from geographic information, which are generally rendered in PNG, GIF, or JPEG formats
OSGeo FDO Provider for GDAL Read-only to raster data in a GDAL-based data store. GDAL is a open source library for accessing raster geospatial data formats