Week 3 Writing

Watch the lecture

Video: https://www.youtube.com/watch?v=WXk7yDqsKxs

Week 3 Writing

Create, Read, Update, Delete. INSERT INTO. CSVs. .import. DELETE FROM. Foreign Key Constraints. UPDATE. Triggers. Soft Deletions.

How to download lecture source code into Visual Studio Code

  1. Log into cs50.dev.

  2. In your terminal window, type

    wget https://cdn.cs50.net/sql/2023/x/lectures/3/src3.zip

    followed by Enter in order to download a Zip file of lecture’s source code into your codespace.

  3. In your terminal window, type

    unzip src3.zip

    followed by Enter to unzip (i.e., decompress) that Zip file.

  4. In your terminal window, type

    cd src3

    followed by Enter in order to “change directory” into that src3 directory (i.e., folder).

  5. In your terminal window, type, e.g.,

    ls

    followed by Enter in order to see the files.