How to get list of tables, views etc. a users has rights to on Sybase IQ?
http://infocenter.sybase.com/help/index.jsp?topic=/com.sybase.infocenter.dc36273.1570/html/sprocs/X22708.htm lists the system stored procedure, sp_helprotect which provides a mechanism for displaying all the rights a user has in a given database.
From that document:

Displays all the permissions that “judy” has in the database:
sp_helprotect judy