Restore A Table accidentally deleted by flashback drop and perform operations on the table in the recycle bin

Restore A Table accidentally deleted by flashback drop and perform operations on the table in the recycle bin. delete the table by mistake. Use the flashback drop function to retrieve SQL> select * from tab; TNAME TABTYPE CLUSTERID ---------------------------- ------- ---------- TEST TABLESQL> select * from test; A ---------- 1 2 3 4 5 6 7 8 0. SQL> show parameter recyclebin;-verify whether the recycle bin is open -- if not open, you cannot use the flashback DROP--11G to open NAME TYPE VALUE defaults -------------------------------- recyclebin string o NSQL> show recyclebin; SQL> drop table test; Table dropped. query the recycle BIN, delete the table, and run the command -- BIN $ to start with a long string. From the original name column, you can see that the table was originally named testSQL> show recyclebin; original name recyclebin name object type drop time ------------------ hour ------------------------- test bin $387 tHPzSqO/hour = $0 TABLE 2013-06-23: 17: 29: 01SQL> select * from tab; tname tabtype clusterid ------------------- ----------- ------- ---------- BIN $387 tHPzSqO/gQKjA3QEnzg = $0 TABLE use the BIN $ TABLE name in the recycle BIN to query TABLE data SQL> select * from "BIN $387 tHPzSqO/gQKjA3QEnzg = = $0 "; A ---------- 1 2 3 4 5 6 7 8 0 execute the flash back command to delete the table and check whether the data is complete: SQL> flashback table test to before drop; Flashback complete. SQL> select * from "BIN $387 tHPzSqO/gQKjA3QEnzg = $0"; select * from "BIN $387 tHPzSqO/gQKjA3QEnzg = $0" * ERROR at line 1: ORA-00942: table or view does not ExistSQL> select * from tab; tname tabtype clusterid ------------------------------ ------- ---------- test tablesql> select * from test; A ---------- 1 2 3 4 5 6 7 8 02. flash back to delete and rename the table BYS @ bys1> select * from test5; id name ---------- 2 B BYS @ bys1> drop Table test5; table dropped. BYS @ bys1> flashback table test5 to before drop rename to test6; Flashback complete. BYS @ bys1> select * from test6; id name- --------- ---------- 2 b3. view the deleted tables in the recycle bin, delete all the tables in the recycle bin, and clear the recycle bin. SQL> create table test2 as select * fromtest1; the table has been created. SQL> insert into test2values ('20140901', 'baishan2'); 1 row has been created. SQL> select * from test2; ID NAME ----- ---------- 00001 baishan00002 baishan2SQL> show recyclebinSQL> drop table test1; the table has been deleted. You can view the deleted table name in the recycle bin after deleting the table, and deletion time SQL> showrecyclebinORIGINAL NAME RECYCLEBIN NAME OBJECT TYPE DROP TIME =--------------------------- TEST1 BIN $ partition = $0 TABLE 2013-02-10: 12: 17: 11SQL> select * from cat; TABLE_NAME TABLE_TYPE ------------------------------ ----------- BIN $ kUfBJ3qcTSiLxqU6hmoEcw = $0 TABLETEST TABLETEST2 table SQL> create table t Est3 as select * fromtest2; the table has been created. SQL> select * from cat; TABLE_NAME TABLE_TYPE ------------------------------ ----------- BIN $ tables = $0 TABLETEST TABLETEST2 TABLETEST3 TABLEDROP the table deleted using the purge parameter is directly deleted and not stored in the recycle BIN. SQL> drop table test2 purge; the table has been deleted. SQL> show recyclebinORIGINAL name recyclebin name object type drop time =--------------------------- TEST1 BIN $ tables ==$ 0 TABLE 2013-02-10: 12: 17: 11 Clear the recycle bin SQL> purge recyclebin; the Recycle Bin has been cleared. SQL> drop table test2; the table has been deleted. SQL> show recyclebinORIGINAL NAME RECYCLEBIN NAME OBJECT TYPE DROP TIME ----------------------------- TEST2 BIN $ UabVC8wiRx + records = $0 TABLE 2013-02-12: 17: 10: 46SQL> drop table test3; TABLE deleted. SQL> show recyclebinORIGINAL NAME RECYCLEBIN NAME OBJECT TYPE DROP TIME when ------------ --------------------- TEST2 BIN $ UabVC8wiRx + GdsN4VT5bRw ==$ 0 TABLE 2013-02-12: 17: 10: 46 TEST3 BIN $ n8CZgrwoSRO16TFB/dXOcA = $0 TABLE 2013-02-12: 17: 11: 35 Clear the TABLE test2 in the recycle BIN. SQL> purge tabletest2; the table has been cleared. SQL> show recyclebinORIGINAL NAME RECYCLEBIN NAME OBJECT TYPE DROP TIME =------------ export TEST3 BIN $ export/dXOcA ==$ 0 TABLE 2013-02-12: 17: 11: 35SQL> flashback table test3 to before drop; flash back complete. SQL> show recyclebin SQL> select count (*) from test3; COUNT (*) ---------- 2