create tablespace test datafile \'D:\ytzz\Oracle\oracledata\test.DBF\' size 4500M autoextend on next 100M maxsize unlimited;
drop user test cascade;
/
create user test identified by test default tablespace test temporary tablespace temp;
/
GRANT DBA TO test WITH ADMIN OPTION
/
GRANT SELECT ANY DICTIONARY TO test WITH ADMIN OPTION
/
GRANT SELECT ANY SEQUENCE TO test WITH ADMIN OPTION
/
GRANT SELECT ANY TABLE TO test WITH ADMIN OPTION
/
GRANT SELECT ANY TRANSACTION TO test WITH ADMIN OPTION
/
GRANT UNLIMITED TABLESPACE TO test WITH ADMIN OPTION
/
GRANT CREATE SESSION,RESOURCE TO test WITH ADMIN OPTION
/
GRANT CREATE ANY VIEW to test
/
--删除表空间
drop tablespace test including contents and datafiles cascade constraint;
--修改密码
select password from dba_users where username=\'test\';
alter user test identified by test;
--逻辑文件夹
select * from dba_directories;
create or replace directory DATABASE as \'D:\YTZZ\copy\';
drop directory DATABASE;
imp/impdp help=y 帮助文档
导入
impdp test/test directory=DATABASE dumpfile=test.DMP schemas=test full=y logfile=import.log
imp test/test file=D:\ytzz\copy\test.DMP TABLESPACES=test
第三步、SQL>shutdown normal
提示：数据库已经关闭 已经卸载数据库 ORACLE 例程已经关闭
第四步、SQL>startup mount
第五步、SQL>alter database open;
shutdown immediate
startup
删除表空间文件出错
第1 行出现错误: ORA-01157: 无法标识/锁定数据文件19 - 请参阅DBWR 跟踪文件
ORA-01110: 数据文件19: \'\'\'\'C:\oracle\oradata\oradb\FYGL.ORA\'\'
这个提示文件部分根据每个人不同情况有点差别。
继续输入 第六步、SQL>alter database datafile 19 offline drop; --- 19对应报错的数据文件19
第七步、重复使用第五第六步，直到出现“数据库已更改”的提示，然后如下图，
继续输入shutdown normal，startup mount就OK啦