把oracle数据库恢复到某个时间点或者某个scn
alter session set nls_date_format='yyyymmdd hh24:mi:ss';
select sysdate from dual;
conn dbauser/123456; 随便一个用户，然后删除其中的一张表用来...
创建测试库、表
```
create database test;
use test;
create table leo (id int,name varchar(10));
```
插入数据
```
insert into leo values (1,"liufeng");
insert into leo values (2,"zhangsan");
insert int...
先设置该用户只有show database权限
grant select,insert,update,delete on redmine1.* to jira@"%" identified by "jira";
新增超级权限并允许远程访问：
GRANT ALL PRIVILEGES ON *.* TO 'myuser'@'192.168...
