今天在帮QQ群 朋友恢复数据库的时候遇到ORA-38856报错,报错信息如下:
SQL> alter database open resetlogs; alter database open resetlogs * ERROR at line 1: ORA-38856: cannot mark instance UNNAMED_INSTANCE_2 (redo thread 2) as enabled |
报错的原因很简单,RAC到单机以resetlogs强制打开数据库
增加参数
_no_recovery_through_resetlogs=true |
SQL> alter database open resetlogs;
Database altered.
SQL> select open_mode from v$database;
OPEN_MODE —————————————- READ WRITE 数据库正常打开 |
RAC迁移到单机以OPEN RESETLOGS方式打开数据库遇到ORA-38856错误:等您坐沙发呢!