OpenROAD transparent Unicode support negates the need for nchar and nvarchar data types to be used in OpenROAD 4GL applications. The nchar and nvarchar data types, introduced in OpenROAD 5.0, can be used in only a limited number of ways. The varchar data type with UTF8 encoding is all that is needed for Unicode support; to prevent nchar and nvarchar data types from being used accidentally, setthe new environment variable, II_W4GL_ALLOW_NVARCHAR, to FALSE. If the variable is set to TRUE (the default), the nchar and nvarchar data types may be declared and used in OpenROAD 4GL applications.

For more information about II_W4GL_ALLOW_NVARCHAR, see the Workbench User Guide.