The driver supports Unicode data types. The following table shows how the Teradata data types map to the Unicode data types, but only when CharacterSet is set to UTF-16.
Table 87. Teradata Unicode Data Types
Teradata
Unicode
char () charset Unicode
SQL_WCHAR
clob charset Unicode
SQL_WLONGVARCHAR
varchar () charset Unicode
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 "Configuring the Product on UNIX/Linux" in the DataDirect Connect Series for ODBC Reference for a more detailed explanation of Unicode.
