# 创建连接

检索在线数据库首先要连接在线数据库，如果是偏好数据库(详见[选择偏好连接文件](/online-databases/favorite-connection-files.md))，它会出现在左侧的 Online Search 列表下，可以直接选择进行连接。如果数据库没有在 Online Search 列表下，依次选择 Tools >> Online Search，选择一个数据库后也可以连接。这个方法有点像[连接管理器](https://app.gitbook.com/s/-LrgCHEEK5wsSALfCziF/online-databases/17ConnectFiles/The_Connectn_Manager.htm)，但是此对话框没有管理器的编辑选项

当连接成功创建后，搜索面板就可以搜索在线数据库了。如果连接出现问题，可以参阅[连接错误](https://app.gitbook.com/s/-LrgCHEEK5wsSALfCziF/online-databases/Appendices/TroubleShooting_Connctns.htm)


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