Oracle12c RAC數據導出至Oracle11g

 一、Oracle12c導出數據

1.連接數據庫

sqlplus / as sysdba

2.查看pdbs

show pdbs;

3.切換pdb

alter session set container=spdb1pdb;

4.指定dump存放路徑

create directory dump as '/tmp/dumpdata';

5.查詢表空間及大小

select tablespace_name,sum(bytes)/1048576 from cdb_data_files group by tablespace_name;

 

 6.導出數據

expdp user/passwd@localhost:1521/spdb1pdb directory=dump dumpfile=dump190809.dump logfile=dump190809.log version=11.2.0.4.0 cluster=n;

注：加參數schemas={} 報錯

以下報錯解決方式：

dump路徑/tmp/dumpdata，在tmp目錄新建dumpdata文件夾

等待導出完成

 

二、Oracle11g導入

 1.查看導出文件及日志

2.將文件拷貝至11g服務器

  scp dump190809.dump root@192.168.0.64:/tmp

 

因網絡原因兩台服務器不通，通過其他途徑拷貝至對應服務器即可

3.連接11g服務器

sqlplus / as sysdba

4.創建同名表空間及臨時表空間

create tablespace CLOUDDATA datafile '/u01/app/oracle/oradata/orcl/CLOUDDATA.dbf' size 500m REUSE autoextend on next 50M;

create temporary tablespace temp1 tempfile '/u01/app/oracle/oradata/orcl/temp1.dbf' size 100m REUSE autoextend on next 50M;

5.創建用戶並賦權

CREATE USER USER IDENTIFIED BY PASSWD DEFAULT TABLESPACE CLOUDDATA TEMPORARY TABLESPACE temp1;

GRANT CONNECT, RESOURCE, DBA TO USER;

注：刪除用戶及清除SESSION

select sid,serial# from v$session where username='USER';

ALTER SYSTEM KILL SESSION '185,37315'; 

 

DROP USER USER CASCADE;

 

6.指定dump存放路徑

create directory dump as '/tmp/dumpdata';

impdp user/passwd directory=dump dumpfile=dump190809.dump logfile=dump190809.log

等待導入完成，對此處報錯忽略。