linux下oracle客户端安装
一。下载：http://www.oracle.com/technetwork/database/features/instant-client/index-097480.html
由于本机是64位linux，所以选择Instant Client for Linux x86-64?
查看oracle服务器端的版本：
?select * from V$version?
结果中有：Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
所以oracle客户端也选择11.2.0.3.0版本。
下载如下三个文件：
instantclient-basic-linux.x64-11.2.0.3.0.zip
instantclient-sqlplus-linux.x64-11.2.0.3.0.zip
instantclient-sdk-linux.x64-11.2.0.3.0.zip
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二。解压
mkdir -p /opt/oracle/lib?
mkdir -p /opt/oracle/network/admin
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解压三个下载文件
unzip?instantclient-basic-linux.x64-11.2.0.3.0.zip
unzip?instantclient-sqlplus-linux.x64-11.2.0.3.0.zip
unzip?instantclient-sdk-linux.x64-11.2.0.3.0.zip
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解压后内容将在当前目录下的instantclient_11_2下
cd?instantclient_11_2
mv sdk??/opt/oracle/sdk
mv *??/opt/oracle/lib
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三。配置环境变量
vi /etc/profile?
ORACLE_HOME=/opt/oracleLD_LIBRARY_PATH=$ORACLE_HOME/libPATH=$JAVA_HOME/bin:$ANT_HOME/bin:$ORACLE_HOME/lib:$PATH CLASSPATH=.:$JAVA_HOME/lib/dt.jar:$JAVA_HOME/lib/tools.jar export JAVA_HOME ANT_HOME PATH CLASSPATH LD_LIBRARY_PATH ORACLE_HOME
?保存后使其生效 source?/etc/profile 或者 .??/etc/profile
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四。配置监听器和网络环境
cd ?/opt/oracle/network/admin
新建三个文件sqlnet.ora，tnsnames.ora，listener.ora
在sqlnet.ora中加入如下内容：
SQLNET.AUTHENTICATION_SERVICES= (NTS)NAMES.DIRECTORY_PATH= (TNSNAMES)
?在tnsnames.ora中加入如下内容：
orcl_db = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.xxx.xxx)(PORT = 1521)) ) (CONNECT_DATA = (SERVICE_NAME = orcl) ) )EXTPROC_CONNECTION_DATA = (DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0)) ) (CONNECT_DATA = (SID = PLSExtProc) (PRESENTATION = RO) ) )
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在listener.ora中加入如下内容：
SID_LIST_LISTENER = (SID_LIST = (SID_DESC = (SID_NAME = PLSExtProc) (ORACLE_HOME = /opt/oracle) (PROGRAM = extproc) ) )LISTENER = (DESCRIPTION_LIST = (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 127.0.0.1)(PORT = 1521)) (ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC0)) ) )
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五。测试
# sqlplus username@orcl_db
SQL*Plus: Release 11.2.0.3.0 Production on Fri Oct 11 10:59:17 2013
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Copyright (c) 1982, 2011, Oracle. ?All rights reserved.
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Enter password:?
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Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production
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With the Partitioning, OLAP, Data Mining and Real Application Testing options
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ok，说明链接服务器成功。
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六。安装sqlldr
windows版本的client会有sqlldr命令，但是linux版本的client就没有这个命令了，不过可以从服务器端copy这个命令。
先按照上面的方式安装linux客户端，然后将服务器端的如下两个文件拷贝到客户端：
从服务器端将$ORACLE_HOME/bin/sqlldr拷贝到/opt/oracle/lib下，并授予执行权限，
从服务器端将$ORACLE_HOME/rdbms/mesg/ulus.msb 拷贝到/opt/oracle/rdbms/mesg下。
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查看sqlldr的依赖是否都存在
$>?cd /opt/oracle/lib/
$>?ldd -r sqlldr
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测试：
$> sqlldr?
打印帮助信息
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