Update databases.qmd (hadley#1650)

Fixed title and removed italics, since "The Three-Valued Logic of SQL" is an article, not a book.
RinconArtist · Apr 20, 2024 · 0e6ee25 · 0e6ee25
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Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/databases.qmd b/databases.qmd
@@ -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: