Database closed.
Database dismounted.
ORACLE instance shut down.
sys@LS1>startup mount;ORACLE instance started.
Total System Global Area 855982080 bytes
Fixed Size 2218152 bytes
Variable Size 633341784 bytes
Database Buffers 213909504 bytes
Redo Buffers 6512640 bytes
Database mounted.
sys@LS1>alter database archivelog;
Database altered.
sys@LS1>alter database flashback on;
Database altered.
sys@LS1>alter database open;
Database altered.
sys@LS1>create tablespace tb1 datafile '/u01/oradata/ls1/tb1.dbf' size 1m;
Tablespace created.
sys@LS1>create user tb1 identified by tb1;
User created.
sys@LS1>grant dba to tb1;
Grant succeeded.
sys@LS1>alter user tb1 default tablespace tb1;
User altered.
sys@LS1>create table tb (id number);
Table created.
sys@LS1>select current_scn from v$database;
CURRENT_SCN
-----------
5060095
sys@LS1>drop tablespace tb1 including contents and datafiles;
Tablespace dropped.
sys@LS1>shutdown immediate
Database closed.
Database dismounted.
ORACLE instance shut down.
sys@LS1>startup mount
ORACLE instance started.
Total System Global Area 855982080 bytes
Fixed Size 2218152 bytes
Variable Size 633341784 bytes
Database Buffers 213909504 bytes
Redo Buffers 6512640 bytes
Database mounted.
sys@LS1>flashback database to scn 5060095;
Flashback complete
sys@LS1>select name from v$datafile;
NAME
----------------------------------------------------------------------------------------------------
/u01/oracle/dbs/UNNAMED00009
sys@LS1>alter database open resetlogs;
Database altered.
sys@LS1>select name from v$datafile;
NAME
----------------------------------------------------------------------------------------------------
/u01/oracle/dbs/UNNAMED00009
sys@LS1>flashback database to scn 5060095;
Flashback complete.
sys@LS1> alter database open resetlogs;
Database altered.
sys@LS1>select * from tb;
no rows selected
sys@LS1>select name from v$datafile;
NAME
----------------------------------------------------------------------------------------------------
/u01/oradata/ls1/tb1.dbf
sys@LS1>select name from v$tablespace;
NAME
------------------------------
TB1