合 Oracle 19c使用dbca来搭建物理DG
【DG】Oracle 19c使用dbca来搭建物理DG单实例(12cR2可以使用但主库必须是单机非CDB的库,18c无限制)
Using DBCA to Create a Data Guard Standby
The Database Configuration Assistant (DBCA) can also be used as a simple command-line method to create an Oracle Data Guard physical standby database.
The DBCA command qualifier used to create the physical standby database is createDuplicateDB .
DBCA can only be used to create standby databases for non-multitenant primary databases. In addition, this capability creates only single instance standby databases,not Oracle Real Application Clusters (Oracle RAC) databases. If required, the standby can then be converted to an Oracle RAC standby database, either manually or using Oracle Enterprise Manager Cloud Control.
在 12cR2 ( 12.2.0.1 )之前创建物理备库的方法有:
1 、使用 RMAN 备份恢复方法;
2 、在 11g 时可以选择 duplicate 方式创建物理备库;通过这种方式直接在线从主库搭建物理备库。