下载地址

选择：

Instant Client for Linux x86-64

1）下载以下两个ZIP包：

• instantclient-basic-linux.x64-12.2.0.1.0.zip
• instantclient-sqlplus-linux.x64-12.2.0.1.0.zip

2）安装依赖包：

yum install libaio* -y

3）上传到服务器并解压到相同目录下

unzip instantclient-basic-linux.x64-12.2.0.1.0.zipunzip instantclient-sqlplus-linux.x64-12.2.0.1.0.zipsudo mv instantclient_12_2 /soft/

 4）添加环境变量

export ORACLE_HOME=/soft/instantclient_12_2export LD_LIBRARY_PATH=/soft/instantclient_12_2export TNS_ADMIN=/soft/instantclient_12_2export PATH=$PATH:/soft/instantclient_12_2

5）添加tnsnames.ora文件

新建目录：

/soft/instantclient_12_2/network/admin

test =  (DESCRIPTION =    (ADDRESS_LIST =      (ADDRESS = (PROTOCOL = TCP)(HOST = 47.75.108.44)(PORT = 1521))    )    (CONNECT_DATA =    (SERVER = DEDICATED)      (SERVICE_NAME = tro)))