Accidentally primary database convert to physical standby

Question

Hi ,
Accidentally the primary database was converted to physical standby .Is there any way where it can be revert back to primary other than using the activate command.
Thanks and Regards,
Hussain

Answer 1

Well although I said "alter database open;" and the same is written into the alert.log, the sequence# again starts with 1 - only the bad word "resetlogs" is no longer mentioned :-)
SQL> select * from v$log;
    GROUP#    THREAD#  SEQUENCE#      BYTES    MEMBERS ARC STATUS
FIRST_CHANGE# FIRST_TIM
         2          1          5  104857600          1 YES CLEARING_CURRENT
       383710 16-JUN-09
         1          1          4  104857600          1 YES CLEARING
       383708 16-JUN-09
SQL> alter database activate standby database;
alter database activate standby database
ERROR at line 1:
ORA-01154: database busy. Open, close, mount, and dismount not allowed now
SQL> recover managed standby database cancel
Media recovery complete.
SQL> alter database activate standby database;
Database altered.
SQL> alter database open;
Database altered.
SQL>  select * from v$log;
    GROUP#    THREAD#  SEQUENCE#      BYTES    MEMBERS ARC STATUS
FIRST_CHANGE# FIRST_TIM
         1          1          1  104857600          1 NO  CURRENT
       383714 16-JUN-09
         2          1          0  104857600          1 YES UNUSED
            0But it seems to me as if you have no other option anyway.