DBlib doesn't support wide varchar columns. This is because the underlying DB-Library API has not been updated to handle wide varchars.

The solution is to move to Sybase::CTlib or DBI/DBD::Sybase, and make sure that you have OpenClient 12.5 or later installed (and available at build time).

I'll add that Sybase has been saying for the last 10 years or so that DBlib would not be updated to handle new features at the protocol level. Hence you should not be using DBlibrary.

Michael