大叔经验分享（93）centos安装oracle客户端

1 下载客户端

官方下载地址：https://www.oracle.com/database/technologies/instant-client/linux-x86-64-downloads.html

下载

Basic Package (RPM)

SQL*Plus Package (RPM)

2 安装

# rpm -ivh oracle-instantclient19.5-basic-19.5.0.0.0-1.x86_64.rpm

# rpm -ivh oracle-instantclient19.5-sqlplus-19.5.0.0.0-1.x86_64.rpm

3 环境变量

#vi ~/.bash_profile
export ORACLE_BASE=/usr/lib/oracle/19.5
export ORACLE_HOME=$ORACLE_BASE/client64
export LD_LIBRARY_PATH=$ORACLE_HOME/lib:$LD_LIBRARY_PATH
export TNS_ADMIN=$ORACLE_BASE/admin
export NLS_LANG=AMERICAN_AMERICA.AL32UTF8

4 配置TNS

# mkdir -p $ORACLE_HOME/network/admin
# vi $ORACLE_HOME/network/admin/tnsnames.ora
alias =
 (DESCRIPTION =
 (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.1.1)(PORT = 1521))
  (CONNECT_DATA =
   (SERVER = DEDICATED)
   (SERVICE_NAME = orcl)
  )
 )

注意该文件格式要求严格，缩进必须为空格，否则会报解析错误；

5 SQLPLUS测试

# sqlplus xxx/xxx@alias