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Oracle Net Services configuration files are typically, but not always, located in the$ORACLE_HOME/network/admindirectory. Depending on the type of file, Oracle Net uses a different search order to locate the file.The search order for thesqlnet.oraandldap.orafiles is as follows:1.   The directory specified by theTNS_ADMINenvironment variable, if this environment variable is set2.   The$ORACLE_HOME/network/admindirectoryThe search order for thecman.ora,listener.ora, andtnsnames.orafiles is as follows:1.   The directory specified by theTNS_ADMINenvironment variable, if this environment variable is set2.   One of the following directories:o   On Solaris:o   /var/opt/oracleo   On other platforms:o   /etc3.   The$ORACLE_HOME/network/admindirectory用Partition Exchange(分区交换)卸载数据10205 bug之6980350, dbms_stats巨慢无比相关资讯      Oracle数据库基础教程 
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