Navicat Premium 连接 Oracle 数据库
Navicat Premium 是一个可多重连接的数据库管理工具，它可让你以单一程序同時连接到 MySQL、SQLite、Oracle 及 PostgreSQL 数据库，让管理不同类型的数据库更加方便。最重要的是它不用装Oracle客户端。下边简单介绍一下Navicat Premium连接oracle客户端的方
Navicat Premium 是一个可多重连接的数据库管理工具，它可让你以单一程序同時连接到 MySQL、SQLite、Oracle 及 PostgreSQL 数据库，让管理不同类型的数据库更加方便。最重要的是它不用装Oracle客户端。下边简单介绍一下Navicat Premium连接oracle客户端的方法。
如果你的机器已经装有 Oracle 数据库的话，那很简单，Navicat Premium可以直接连接到 Oracle 。
如果没装，那 Navicat 会提示你需要安装 Oracle 客户端，如果不是必要，千万别装 Oracle 客户端，先不说它的块头很大，有四五百兆，装完后你很难卸载干净。
根据 Navicat 官方的文档，其实只需要下载 Oracle 的 Instance Client 即可。这个包只包含一些 dll 文件，无需安装解压即可。
要根据不同的 Oracle 版本来下载 Instance Client 的版本，对应关系如下：
Oracle 9i 或者更新的版本，需要使用 Instance Client 11 这个版本
Oracle 8 和 8i 用 Instance Client 10 版本。
另外必须注意的时候，只能下载 32 位版本，因为 Navicat 不支持 64 位的版本，另外要下载 Basic 版本 (40M)，而不是 Basic Lite 版(11兆)，因为 Basic Lite 版不支持中文，连接的时候会告诉你服务器端的编码不被支持。
下载 Oracle Instance Client 如下图
下载完毕后解压到任意一个目录，然后打开 Navicat -> 工具 -> 选项 -> OCI ，如下图所示：
在 OCI library 地方选择解压的目录下的oci.dll文件，确定后即可。
接下来就是新建一个 Oracle 连接，注意连接类型必须选择 Basic，否则你就又要搞很多配置文件。
如下图所示：
最后，Navicat Premium 下载地址：
http://download.navicat.com/download/navicat9_premium_cs.exe
注册码：NAVC-N7T9-WG9L-7U9B
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