我实验了一下 mount下可以创建undo表空间吗?
undo_management
stringMANUAL
undo_tablespace
stringSMALL_UDNO
_corrupted_rollback_segments string_SYSSMU1$, _SYSSMU2$, _SYSSMU3
$, _SYSSMU4$, _SYSSMU5$, _SYSS
MU6$, _SYSSMU7$, _SYSSMU8$, _S
YSSMU9$, _SYSSMU10$, _SYSSMU11
$, _SYSSMU12$, _SYSSMU13$, _SY
SSMU14$, _SYSSMU15$, _SYSSMU16
$, _SYSSMU17$, _SYSSMU18$, _SY
SSMU19$, _SYSSMU20$
_offline_rollback_segments stringTRUE
我设置了这几个参数打开还是有问题
ORA-01157: cannot identify/lock data file 2 - see DBWR trace file
ORA-01110: data file 2: '/u01/oradata/wilson/undotbs01.dbf'
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