1. 安装 xcode

  2. 从 oracle 官网下载以下安装包
    instantclient-basic-macos.x64-12.1.0.2.0.zip
    instantclient-sdk-macos.x64-12.1.0.2.0.zip
    下载地址：http://www.oracle.com/technetwork/topics/intel-macsoft-096467.html

  3. 将下载的安装包复制到 $HOME/Library/Caches/Homebrew 目录下
    执行以下安装命令

    brew tap InstantClientTap/instantclient
brew install instantclient-basic
brew install instantclient-sdk

  4. 设置环境变量

    export OCI_DIR=$(brew --prefix)/lib

  5. 安装 ruby-oci8

    gem install ruby-oci8