Troubleshooting Standby database recover failed with ORA-19906 ORA-10576 ORA-19909
常常有客户配置oracle dataguard 1对多或级连(cascade) standby， 当需要一个测试环境时，通常考虑拿一个standby激活或snapshot dg，但如果在激活为可读写数据库时(Failover)，如果提前DG参数没有清理，可能导致剩余standby database无法继续应用日志，这里简单记录。
Troubleshooting ORA-01578 ORA-01110 ORA-26040 NOLOGGING corrupted block
The following errors have recently occurred in our database( Oracle 19c RAC):
ORA-01578: ORACLE data block corrupted (file # xxx, block # yyyyy)
ORA-01110: data file xxx: ‘xxxxxxxxxxxxxxxxx.dbf’
ORA-26040: Data block was loaded using the NOLOGGING option
如何修复ORA-01111, ORA-01110, ORA-01157 errors on Standby database
在oracle DATAGUARD环境，STANDBY_FILE_MANAGEMENT 参数控制standby […]
