If the interfaces library successfully locates a server, it then tries to locate the database. For example:
If you rely on the DBF parameter, the DBF path must either be an absolute path, or relative to where the server was started, in order for Sybase IQ to find the database it specifies. For example, if you specify ../foo/iqdemo, it looks in the directory above where the server is, and then in foo.
The default database is the one started with the server.