GdaServerProvider Base class for implementing new providers @provider: @Returns: @provider: @cnc: @Returns: @provider: @cnc: @params: @username: @password: @Returns: @provider: @cnc: @Returns: @provider: @cnc: @Returns: @provider: @cnc: @Returns: @provider: @cnc: @Returns: @provider: @cnc: @name: @Returns: @provider: @action_type: @Returns: @provider: @params: @action_type: @error: @Returns: @provider: @cnc: @name: @Returns: @provider: @cnc: @name: @Returns: @provider: @cnc: @table_name: @attributes_list: @index_list: @Returns: @attributes: @provider: @cnc: @table_name: @Returns: @provider: @cnc: @index: @table_name: @Returns: @provider: @cnc: @index_name: @primary_key: @table_name: @Returns: @provider: @cnc: @cmd: @params: @Returns: @provider: @cnc: @recset: @Returns: @provider: @cnc: @xaction: @Returns: @trans_id: @provider: @cnc: @xaction: @Returns: @trans_id: @provider: @cnc: @xaction: @Returns: @trans_id: @provider: @cnc: @feature: @Returns: @provider: @cnc: @schema: @params: @error: @Returns: @provider: @cnc: @Returns: @blob: @provider: @cnc: @sql_id: @Returns: @provider: @cnc: @for_type: @Returns: @provider: @cnc: @for_type: @Returns: @provider: @cnc: @string: @prefered_type: @dbms_type: @Returns: @provider: @cnc: @from: @Returns: @provider: @cnc: @gda_type: @Returns: