20. 练习：DISTINCT

问题：DISTINCT

根据以下 SQL 表格信息回答以下问题。如果你遇到问题或想要对比检查你的答案，可以在下一页面的顶部找到我的答案。

  1. 使用 DISTINCT 检查是否有任何客户与多个区域相关联？

  2. 有没有 销售代表 要处理多个客户？

Workspace

This section contains either a workspace (it can be a Jupyter Notebook workspace or an online code editor work space, etc.) and it cannot be automatically downloaded to be generated here. Please access the classroom with your account and manually download the workspace to your local machine. Note that for some courses, Udacity upload the workspace files onto https://github.com/udacity , so you may be able to download them there.

Workspace Information:

  • Default file path:
  • Workspace type: sql-evaluator
  • Opened files (when workspace is loaded): n/a

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