Oracle 9i activating read only standby database

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Oracle version -- Oracle 9i

Below are the steps to open a read-only standby BCV database as a production ready (read-write) in oracle 9i.
 SQL> alter database mount standby database;  
 Database altered.  
 SQL> alter database open read only;  
 Database altered.  
 SQL>   
 SQL> ALTER DATABASE ACTIVATE STANDBY DATABASE;  
 Database altered.  
 SQL>  
 SQL> alter database mount;  
 Database altered.  
 SQL> alter database open;  
 Database altered.  
 SQL> select name, open_mode, log_mode from v$database;  
 NAME   OPEN_MODE LOG_MODE  
 --------- ---------- ------------  
 FXBPADM  READ WRITE ARCHIVELOG  
 SQL>

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