It appears you are trying to specify the database the table should be created in. In SQL-server, sometimes it would nag if you didn't put the owner of the table creating it within the database. I looked at SyBase's create table, and I think you just need to make a slight shift
create table IDW.tablename
to
create table IDW..tablename
The "IDW" appears to be your database. the extra period via ".." would imply that whoever you are connected as is the table owner, or just goes to default owner value, THEN the table name.
Hope this helps.