Copyright: [Beijing] Java Youth: 456588754 https://blog.csdn.net/Amen_Wu/article/details/53510747
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data pump technology
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1. create a directory
sys dba身份登录
create directory dump_dir as 'e:\backup';
--select * from dba_directories;
--drop directory dump_dir;
-2 granted permission to operate dump_dir user directory
grant read,write on directory dump_dir to scott;
-3. User1 create a test user and authorization
create user user1 identified by user1;
grant connect,resource to user1;
grant read,write on directory dump_dir to user1;
-4. Import and Export
/*--------表---------------*/
--导出scott用户下的表
C:\>expdp scott/tiger@orcl directory=dump_dir dumpfile=scotttab.dmp tables=emp,dept
--将dept,emp表导入user1中.
C:\>impdp system/tiger@orcl directory=dump_dir dumpfile=scotttab.dmp tables=dept,emp REMAP_SCHEMA=SCOTT:USER1
impdp system/tiger@orcl directory=dump_dir dumpfile=scotttab.dmp tables=dept,emp REMAP_SCHEMA=SCOTT:USER1
/*--------用户--------------*/
--导出scott用户模式
C:\>expdp scott/tiger@orcl directory=dump_dir dumpfile=scottschema.dmp schemas=scott
--导入scott用户模式
C:\>impdp scott/orcl@orcldb directory=dump_dir dumpfile=scottschema.dmp schemas=scott
--将scott中所有对象导入user1中.
C:\>impdp system/orcl@orcldb directory=dump_dir dumpfile=scottschema.dmp schemas=scott REMAP_SCHEMA=SCOTT:USER1
/*--------表空间--------------*/
--导出user01表空间
--提前创建一个users01表空间
C:\>expdp system/orcl@orcldb directory=dump_dir dumpfile=tablespaceusers.dmp tablespaces=users01
--导入user01表空间
C:\>impdp system/orcl@orcldb directory=dump_dir dumpfile=tablespaceusers.dmp tablespaces=users01
/*--------数据库--------------*/
--导出整个数据库
C:\>expdp system/orcl@orcldb directory=dump_dir dumpfile=full.dmp full=y
--导入整个数据库
C:\>impdp system/orcl@orcldb directory=dump_dir dumpfile=full.dmp full=y
