The SAP utility programs assume that the default character set of the client platform is the same character set the client is using.
However, occasionally the client character set differs from the character set for the platform. For this reason, you may need to specify the client character set at the command line. A command line option for the isql, bcp, and defncopy utilities specifies the client’s character set, and temporarily overrides settings of the LANG variable or settings in locales.dat.
-J charset_name (UNIX and PC) sets the client’s character set to the charset_name.
If you omit the client character set’s command line flag, the platform’s default character set is used. See the Utility Guide.