Icolumnsrowset työt

...Provider should implement IColumnsRowset in order to support updating through CCE. You should implement GetAvailableColumns, GetColumnsRowset. GetAvailableColumns should return return at least the following: Base table column name (DBCOLUMN_BASECOLUMNNAME) Base table name (DBCOLUMN_BASETABLENAME) Base table schema name (DBCOLUMN_BASESCHEMANAME) Base table catalog name (DBCOLUMN_BASECATALOGNAME) Key or non-key column status (DBCOLUMN_KEYCOLUMN) GetColumnsRowset should return a rowset in which these meta data columns contain valid information. Implement the above plus whatever else is needed in order to support update through CCE. As MSDN says, Update properties can be gathered in one of the following ways: 1. Using the OLE DB IColumnsRowset ...

This project is for those who are good in database programming and, in particular, those who have experience in writing OLE DB providers. I want the source code of a sample OLE DB provider. It should be written in C++ using ATL (no MFC please). The provider should implement IColumnsRowset in order to support updating through CCE (client cursor engine). You need to implement IColumnsRowset::GetAvailableColumns and IColumnsRowset::GetColumnsRowset. GetAvailableColumns should return return at least the following three optional meta data columns: Base table column name (DBCOLUMN_BASECOLUMNNAME) Base table name (DBCOLUMN_BASETABLENAME) Base table schema name (DBCOLUMN_BASESCHEMANAME) Base table catalog name (DBCOLUMN_BASECATALOGNAME) Key or non-key column stat...