Commit be830b4e authored by yuki_chen's avatar yuki_chen Committed by yuki_chen
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Refine tips

parent cc9ac8e9
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+14 −0
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@@ -176,3 +176,17 @@ Each group member should only submit one copy on BlackBoard.
   <img src="document_assets/image-20211028180741756.png" alt="image-20211028180741756" style="zoom:50%;" />

   Then you can copy the generated SQL, which contains all tables, indexes, and functions.
   
4. It is recommended to use git to manage group collaboration.

5. How to calculate the number of weeks during two day?

   It's recommended to use the following SQL code:

   ```sql
   SELECT (floor((day_end - day_start) / 7.0)::integer + 1) AS weekoffset;
   ```