1.数据库完整备份
EXP SYSTEM/PASSWORD@SID FULL=Y FILE=D:\SYSTEM.DMP LOG=D:\SYSTEM.LOG
2.数据入库
  (a)从数据库中删除SDE和SDE USER用户
DROP USER SDE CASCADE;
DROP USER SDEUSER CASCADE;
  (b)创建新的SDE用户和SDEUSER
  下为创建SDE用户过程:
  (i)创建表空间  
CREATE TABLESPACE "SDE"
    LOGGING
    DATAFILE 'C:\ORACLE\ORADATA\ORACLE\SDE.ora' SIZE 200M
    EXTENT MANAGEMENT LOCAL SEGMENT SPACE MANAGEMENT  AUTO  
  (ii)创建用户
CREATE USER "SDE"  PROFILE "DEFAULT"
    IDENTIFIED BY "PASSWORD" DEFAULT TABLESPACE "SDE"
    TEMPORARY TABLESPACE "TEMP"
    ACCOUNT UNLOCK;
  (iii)创建角色
GRANT "DBA" TO "SDE";
GRANT "CONNECT" TO "SDE";
GRANT "RESOURCE" TO "SDE";
  (iiii)系统权限
GRANT ALTER ANY INDEX TO "SDE" WITH ADMIN OPTION;
GRANT ALTER ANY TABLE TO "SDE" WITH ADMIN OPTION;
GRANT ANALYZE ANY TO "SDE" WITH ADMIN OPTION;
GRANT CREATE ANY INDEX TO "SDE" WITH ADMIN OPTION;
GRANT CREATE ANY PROCEDURE TO "SDE" WITH ADMIN OPTION;
GRANT CREATE ANY SEQUENCE TO "SDE" WITH ADMIN OPTION;
GRANT CREATE ANY TRIGGER TO "SDE" WITH ADMIN OPTION;
GRANT CREATE ANY VIEW TO "SDE" WITH ADMIN OPTION;
GRANT CREATE SESSION TO "SDE" WITH ADMIN OPTION;
GRANT DROP ANY INDEX TO "SDE" WITH ADMIN OPTION;
GRANT DROP ANY TABLE TO "SDE" WITH ADMIN OPTION;
GRANT DROP ANY VIEW TO "SDE" WITH ADMIN OPTION;
GRANT DROP ANY PROCEDURE TO "SDE" WITH ADMIN OPTION;
GRANT DROP ANY SEQUENCE TO "SDE" WITH ADMIN OPTION;
GRANT EXECUTE ANY PROCEDURE TO "SDE" WITH ADMIN OPTION;
GRANT SELECT ANY SEQUENCE TO "SDE" WITH ADMIN OPTION;
GRANT SELECT ANY TABLE TO "SDE" WITH ADMIN OPTION;
GRANT UNLIMITED TABLESPACE  TO "SDE" WITH ADMIN OPTION;

3.导入SDE和SDEUSER的数据
注意顺序，先SDE，后SDEUSER
IMP SYSTEM/PASSWOR@SID FROMUSER=SDE TOUSER=SDE
IMP SYSTEM/PASSWOR@SID FROMUSER=SDEUSER TOUSER=SDEUSER

以上提到的SDE和SDEUSER是不同的用户，SDE是ArcSDE安装时的默认用户，SDEUSER
是指用户存储数据的用户，如果之间使用SDE默认用户存储，则省去所以的SDEUSER操作