Using the driver with iODBC driver manager

Last modified: July 25, 2025

iODBC compatibility

The iODBC driver manager does not fully support certain ODBC data types, which may result in incorrect data handling. The affected data types include:

• SQL_WCHAR
• SQL_WVARCHAR
• SQL_WLONGVARCHAR

Recommended alternative data types

To ensure proper data processing, use the following data types instead:

• SQL_CHAR
• SQL_VARCHAR
• SQL_LONGVARCHAR

Note

If your application requires SQL_WCHAR, SQL_WVARCHAR, or SQL_WLONGVARCHAR data types, it is recommended to use the unixODBC driver manager instead of iODBC to ensure full compatibility and accurate data handling.