Adaptive Server stores data using its default character set, which is configured during installation. If your terminal does not support that default character set, it may send confusing characters to bcp when you respond to prompts either by typing or by using host file scripts.
Omitting all character-set options causes bcp to use the character set that was named as the default for the platform. This default can cause communications problems:
The default is not necessarily the same character set that was configured for Adaptive Server.
The default may not necessarily be the character set that the client is using.
For more information about character sets and the associated flags, see Chapter 20, “Configuring Client/Server Character Set Conversions” in the System Administration Guide.