Skip to content
New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Jump to bottom

Update databases.qmd #1650

Merged
merged 1 commit into from
Apr 20, 2024
Merged

Update databases.qmd #1650

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Jump to
Jump to file
Failed to load files.
Diff view
Diff view
2 changes: 1 addition & 1 deletion databases.qmd
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -426,7 +426,7 @@ flights |>
summarize(delay = mean(arr_delay))
```

If you want to learn more about how `NULL`s work, you might enjoy "[*Three valued logic*](https://modern-sql.com/concept/three-valued-logic)" by Markus Winand.
If you want to learn more about how `NULL`s work, you might enjoy "[The Three-Valued Logic of SQL](https://modern-sql.com/concept/three-valued-logic)" by Markus Winand.

In general, you can work with `NULL`s using the functions you'd use for `NA`s in R:

Expand Down