Srini Chavali wrote:Again, +STARTUP Mount+ starts an Instance with DB Mounted or Not, respectively. Also, like commands - +SHUTDOWN [Immediate]+ closes (dis-mounts) a DB connection (but Instance still runs) .
Not quite - each database is associated with at least one instance. If you have only once instance, it would be considered a standard/normal install. If you have multiple instances associated with a single database, then you have a RAC install