Skete i forbindelse med en opgradering, eller rettere efter, so to speak

SQL> SELECT name, guarantee_flashback_database, scn FROM v$restore_point
 
SQL> /

NAME
--------------------------------------------------------------------------------
GUA        SCN
--- ----------
BEGIN_UPGRADE_11G
YES   26788149

og en base der stod og genrerede archives og flashback

SQL> drop restore point BEGIN_UPGRADE_11G;

Restore point dropped.

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

Total System Global Area 1069252608 bytes
Fixed Size                  2166160 bytes
Variable Size             616567408 bytes
Database Buffers          444596224 bytes
Redo Buffers                5922816 bytes
Database mounted.

SQL> ALTER DATABASE FLASHBACK OFF;

Database altered.

SQL> ALTER DATABASE NOARCHIVELOG;

Database altered.

SQL> alter database open;

Database altered.