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Data Guard备库以只读或读写方式打开访问
8.2 Opening a Standby Database for Read-Only or Read/Write Access8.2以只读或者可读写方式打开备库来访问 When a standby database is open for read-only access, users can query the standby database but cannot update it. Thus, you can reduce the load on the primary database by using the standby d...
