查看回收站有沒有開啓,默認開啓狀態
SQL> show parameter recy
NAME TYPE VALUE
buffer_pool_recycle string
db_recycle_cache_size big integer 0
recyclebin string on
建表,插入數據,並刪除
SQL> create table tmp_a (a number);
Table created.
SQL> insert into tmp_a values ('1');
1 row created.
SQL> commit;
Commit complete.
SQL> drop table tmp_a;
Table dropped.
查詢回收站內容
select * from user_recyclebin;
select * from dba_recyclebin;
閃回回收站的表
SQL> flashback table tmp_a to before drop;
Flashback complete.
再次查詢下,表與數據還在
SQL> select * from tmp_a;
A
1