diff --git a/docs/zh/sql/02/03.md b/docs/zh/sql/02/03.md
index 3aef5e8..50ee367 100644
--- a/docs/zh/sql/02/03.md
+++ b/docs/zh/sql/02/03.md
@@ -5,4 +5,4 @@ priority: 4
 
 # 数据模型
 
-## 
\ No newline at end of file
+##