Data pump export and import data

Goal: Use oracle data pump to export the source data and then import it into the target database.

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Operation in the source database, expdp data export

1. Log in with an administrator role

sqlplus / as sysdba

2. Create an export directory

--\ora\data数据库导出文件存放路径（路径必须存在）
--data_dir逻辑路径名称，自定义命名
create directory data_dir as '\ora\data';

3. Grant access to the data directory for the oracle user

--dbuser使用那个用户导出数据，需要授权
Grant read,write on directory data_dir to dbuser;


--可查询用户创建目录。
select * from dba_directories;

4. Import and export authorization

grant exp_full_database,imp_full_database to dbuser;

5. Data export, execute command

--directory(导出路径名称-数据库逻辑路径)
--dumpfile导出文件名称
expdp gaofeng/gaofeng@orcl directory=data_dir  dumpfile=EXPDP.DUMP

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Operation in the source database, expdp data export

1. Log in with an administrator role

sqlplus / as sysdba

2. Create a directory path

--
create directory data_dir as '\ora\data';

--data_dir为路径名称，可自命名
--\ora\data为数据库导出文件存放路径（路径必须存在）

--查询用户创建目录是否存在
select * from dba_directories;

3. Grant access to the data directory for the oracle user

--dbuser 导入数据使用的用户名
Grant read,write on directory data_dir to dbuser;

 

4. Export the file \ora\datafrom the .dmp data pump in the directory of the source database server and copy it to the directory ( E:\ora\data) created by the target server

7. Data Import

--directory导入数据库逻辑路径名称
--dumpfile导入文件名称


impdp sys/sys directory=DATA_IMP dumpfile=EXPDP.DUMP