Sunday, July 28, 2013

The Oracle System ID (SID)

The Oracle System ID (SID) is used to uniquely identify a particular database on a system. For this reason, one cannot have more than one database with the same SID on a computer system.
When using RAC, all instances belonging to the same database must have unique SID's.

http://www.orafaq.com/wiki/ORACLE_SID