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	<title>Li Yue [学习笔记] &#187; expdp</title>
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		<title>数据泵导入导出数据</title>
		<link>http://www.liyue.org/tech/archives/192</link>
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		<pubDate>Mon, 30 Nov 2009 12:21:53 +0000</pubDate>
		<dc:creator>李悦</dc:creator>
				<category><![CDATA[oracle]]></category>
		<category><![CDATA[expdp]]></category>
		<category><![CDATA[impdp]]></category>

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		<description><![CDATA[数据导入，首先需要知道导入端oracle的dpump_dir目录，通过执行下面的语句查看系统表： SELECT * FROM dba_directories 得到DPUMP_DIR路径为：/var/web/exp_bak/pumpdata 将备份的dmp文件放到这个路径下，执行： ./impdp user/pass dumpfile=Oracle_bak_20091130.dmp directory=dpump_dir dmp文件必须要放到dpump_dir目录下，并且dumpfile 不能带路径，否则，出现下面类似错误： UDI-00008: operation generated ORACLE error 1034 ORA-01034: ORACLE not available ORA-27101: shared memory realm does not exist Linux-x86_64 Error: 2: No such file or directory UDI-00003: all allowable logon attempts failed 用oracle帐户登陆系统后，执行cat ~/.bash_profile，查看oracle帐户的环境变量。 如果用su oracle，则oracle环境变量不会执行，可以运行source ~/.bash_profile 执行环境变量配置文件而不必重新用oracle帐户登陆。]]></description>
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