11g以前，data guard是不需要额外的LICENSE的。
11g中，如果STANDBY数据库在接受日志并恢复过程中被打开，是需要额外的License的。
我用的是9i
我找到一個文件
http://www.oracle.com/corporate/pricing/sig.pdf
20頁
Standby – In this type of recovery, a copy of the primary database is
maintained on a separate server at all times. These systems are configured
for disaster recovery purposes. If the primary database fails, the standby
database is activated to act as the new primary database. In this
environment, both the primary and the standby databases must be fully
licensed. Additionally, the same metric must be used when licensing the
databases in a standby environment. See illustration #5.
看起來是要買ㄟ...請問一下 11g以前不用買 有文件說明嗎?
什麼都要錢 老闆會K死我
