Script - Flashback Database

-- PARA ACTIVAR FLASHBACK DATABASE

ALTER SYSTEM SET log_archive_dest_1="LOCATION=/vol1/.../instancia OPTIONAL REOPEN=300" SCOPE=SPFILE;
ALTER SYSTEM SET log_archive_format="archINSTANCIA_%t_%r_%s.arc" SCOPE=SPFILE;

ALTER SYSTEM SET DB_RECOVERY_FILE_DEST="/vol1/flash_recovery_area" SCOPE=SPFILE;
ALTER SYSTEM SET db_recovery_file_dest_size=50G SCOPE=SPFILE;

-- DEJAMOS 20 DIAS POSIBLES DE FLASHBACK PARA TIRAR HACIA ATRÁS
ALTER SYSTEM SET db_flashback_retention_target=28800 scope=spfile;

-- ACTIVACION DE MODO ARCHIVELOG Y FLASHBACK ON
STARTUP MOUNT EXCLUSIVE;

alter database archivelog;
ALTER DATABSE FLASHBACK ON;

-- EJEMPLO DE USO

shutdown immediate;
startup mount;

export ORACLE_SID=instancia
$ORACLE_HOME/bin/rman target /
run {
flashback database to scn 123456789;
}