| title |
Loading by Ordinal |
| description |
Loading by Ordinal |
| author |
dlevy-msft-sql |
| ms.author |
dlevy |
| ms.reviewer |
davidengel, sunilbs, mcimfl |
| ms.date |
01/19/2017 |
| ms.service |
sql |
| ms.subservice |
connectivity |
| ms.topic |
reference |
| helpviewer_keywords |
backward compatibility [ODBC], loading by ordinal |
compatibility [ODBC], loading by ordinal |
loading by ordinal [ODBC] |
|
In ODBC 2.x, loading by ordinal could be performed to improve the performance of the connection process. An ODBC 2.x driver exports a dummy function with the ordinal 199; when the Driver Manager detects it, it resolves the addresses of the ODBC functions by ordinal, not by name. This functionality is still supported for ODBC 2.x drivers but is not supported for ODBC 3.x drivers.