Unregister snapshots

Script to generate sql to unregister snapshots in Oracle database

select 'exec DBMS_SNAPSHOT.UNREGISTER_SNAPSHOT(snapowner => ' || '''' || owner ||
	   '''' || ', snapname => ' || '''' || name || '''' || ', snapsite => ' || '''' ||
	   snapshot_site || '''' || ');'
from  dba_registered_snapshots
/