MDAC 2.5 SDK - OLE DB Programmer's Reference
Appendix C: OLE DB Properties
Property group: Rowset
Property set: DBPROPSET_ROWSET
Column? N
Type: VT_BOOL
Typical R/W: R
Description: Column Privileges
| Value | Meaning |
| VARIANT_TRUE | Access rights are restricted on a column-by-column basis. If the rowset exposes IRowsetChange, IRowsetChange::SetData cannot be called for at least one column. A provider must not execute a query that would specify a column for which the consumer has no read access rights. |
| VARIANT_FALSE | Access rights are not restricted on a column-by-column basis. If the rowset exposes IRowsetChange, IRowsetChange::SetData can be called for any column in the rowset. |
If access is restricted both by row and by column, individual columns of particular rows might have their own stricter access rights; the consumer might not even be permitted to read such columns. The column values will be NULL. If a NULL value is contrary to schema rules (NULLs not permitted), the rowset should not count or return any rows that would have this condition. For more information, see DBPROP_ROWRESTRICT.