GdaServerProvider Base class for implementing new providers @provider: @Returns: @provider: @cnc: @params: @username: @password: @Returns: @provider: @cnc: @Returns: @provider: @cnc: @Returns: @provider: @cnc: @Returns: @provider: @cnc: @name: @Returns: @provider: @cnc: @name: @Returns: @provider: @cnc: @name: @Returns: @provider: @cnc: @table_name: @attributes: @Returns: @provider: @cnc: @table_name: @Returns: @provider: @cnc: @cmd: @params: @Returns: @provider: @cnc: @recset: @Returns: @provider: @cnc: @xaction: @Returns: @provider: @cnc: @xaction: @Returns: @provider: @cnc: @xaction: @Returns: @provider: @cnc: @feature: @Returns: @provider: @cnc: @schema: @params: @Returns: @provider: @cnc: @blob: @Returns: