In 12.0, HA creates databases with names like “__pxy”. As a result, you cannot drop proxy databases with similar names ending in “pxy” from Adaptive Servers configured with Sybase Failover in a high availability system. If you attempt to drop these proxy databases, Adaptive Server issues an error message. This is expected behavior.
If you need to drop a database with this type of name, change configuration so your system is not configured for high availability.