Unicode Support

When connected to a Unicode database, the Progress OpenEdge Wire Protocol driver supports the Unicode data types listed in the following table, in addition to standard ODBC data types listed in Table 10-2. The Use Wide Character Types connection string option must be enabled.

Progress OpenEdge Data Type	Mapped to. . .
Char	SQL_WCHAR
Varchar	SQL_WVARCHAR

The driver supports the Unicode ODBC W (Wide) function calls, such as SQLConnectW. This allows the Driver Manager to transmit these calls directly to the driver. Otherwise, the Driver Manager would incur the additional overhead of converting the W calls to ANSI function calls, and vice versa.

See “UTF-16 Applications on UNIX and Linux” for related details. Also, refer to Chapter 4 “Internationalization, Localization, and Unicode” in the DataDirect Connect Series for ODBC Reference for a more detailed explanation of Unicode.