diff --git a/journals/2023_11_30.md b/journals/2023_11_30.md
index 7ad260ca..04c99ee9 100644
--- a/journals/2023_11_30.md
+++ b/journals/2023_11_30.md
@@ -1 +1,3 @@
-- [[Database]] #MySQL #MariaDB
\ No newline at end of file
+- [[Database]] #MySQL #MariaDB
+	- Collate: https://stackoverflow.com/questions/766809/whats-the-difference-between-utf8-general-ci-and-utf8-unicode-ci
+		- use utf8mb4_0900_ai_ci
\ No newline at end of file