–ORA-01172: recovery of thread 1 stuck at block 9 of file 2 (RECOVER DATAFILE )

connect sys as sysdba

SQL> select status from v$instance;

STATUS
————
MOUNTED

SQL> alter database open;
alter database open
*
ERROR at line 1:
ORA-01172: recovery of thread 1 stuck at block 9 of file 2
ORA-01151: use media recovery to recover block, restore backup if needed

SQL> select name from v$datafile where file#=2;

NAME
——————————————————————————–

C:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL2\UNDOTBS01.DBF

SQL> RECOVER DATAFILE ‘C:\ORACLE\PRODUCT\10.2.0\ORADATA\ORCL2\UNDOTBS01.DBF’;
Media recovery complete.
SQL> alter database open;

Database altered.

SQL> shutdown immediate
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup force

regards

Mohammad Talat

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