查看回收站有没有开启,默认开启状态
SQL> show parameter recy
NAME TYPE VALUE
buffer_pool_recycle string
db_recycle_cache_size big integer 0
recyclebin string on
建表,插入数据,并删除
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.
查询回收站内容
select * from user_recyclebin;
select * from dba_recyclebin;
闪回回收站的表
SQL> flashback table tmp_a to before drop;
Flashback complete.
再次查询下,表与数据还在
SQL> select * from tmp_a;
A
1