| title | description | author | ms.author | ms.date | ms.service | ms.subservice | ms.topic | helpviewer_keywords | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Using IRow::GetColumns (OLE DB driver) |
Learn how to use IRow::GetColumns to access all columns in a row in OLE DB Driver for SQL Server. IRow allows forward-only sequential access to columns. |
David-Engel |
davidengel |
06/14/2018 |
sql |
connectivity |
reference |
|
[!INCLUDE SQL Server]
[!INCLUDEDriver_OLEDB_Download]
The IRow implementation allows forward-only sequential access to the columns. You can either access all the columns in the row with a single call to IRow::GetColumns or call IRow::GetColumns multiple times every time that you access several columns in the row.
The multiple calls to IRow::GetColumns should not overlap. For example, if the first call to IRow::GetColumns retrieves columns 1, 2, and 3, the second call to IRow::GetColumns should call for columns 4, 5, and 6. If later calls to IRow::GetColumns overlap, the status flag (dwstatus field in DBCOLUMNACCESS) is set to DBSTATUS_E_UNAVAILABLE.