1.下载安装包

• 下载链接 https://www.oracle.com/database/technologies/instant-client/linux-x86-64-downloads.html

• 找到对应版本，我使用的是11.2版本
  oracle-instantclient11.2-basic-11.2.0.4.0-1.x86_64.rpm
  oracle-instantclient11.2-devel-11.2.0.4.0-1.x86_64.rpm
  oracle-instantclient11.2-sqlplus-11.2.0.4.0-1.x86_64.rpm

2. 安装

rpm -ivh oracle-instantclient11.2-basic-11.2.0.4.0-1.x86_64.rpm --nodeps --force
rpm -ivh oracle-instantclient11.2-devel-11.2.0.4.0-1.x86_64.rpm --nodeps --force
rpm -ivh oracle-instantclient11.2-sqlplus-11.2.0.4.0-1.x86_64.rpm --nodeps --force

3.配置Oracle连接

• 创建目录
  mkdir -p /usr/lib/oracle/11.2/client64/network/admin

• 创建文件并写入
  vi /usr/lib/oracle/11.2/client64/network/admin/tnsnames.ora

dg01 =
  (DESCRIPTION =
    (ADDRESS =
      (PROTOCOL = TCP)
      (HOST = 10.0.17.149)
      (PORT = 1521)
    )
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = dg01)
    )
  )

• 修改环境变量文件
  vi ~/.bashrc

#末尾添加
export  ORACLE_HOME=/usr/lib/oracle/11.2/client64
export  TNS_ADMIN=$ORACLE_HOME/network/admin
export  LD_LIBRARY_PATH=$ORACLE_HOME/lib 
export  LANG=zh_CN.UTF-8
export  NLS_LANG=AMERICAN_AMERICA.utf8
export  PATH=$PATH:$ORACLE_HOME/bin

• 刷新环境变量
  source ~/.bashrc

其他

• 查询rpm包
  rpm -qa | grep oracle
• 卸载rpm包
  rpm -e --nodeps oracle-instantclient11.2-basic-11.2.0.4.0-1.x86_64
rpm -e --nodeps oracle-instantclient11.2-sqlplus-11.2.0.4.0-1.x86_64
rpm -e --nodeps oracle-instantclient11.2-devel-11.2.0.4.0-1.x86_64