Update sampleSQL_cn.md

mailrun · web-flow · commit 9414e6a08b95 · 2024-07-22T10:07:03.000+08:00
diff --git a/sampleSQL_cn.md b/sampleSQL_cn.md
@@ -85,4 +85,3 @@ SELECT prod_id,
 FROM sh.sales 
 GROUP BY prod_id;
 ```
-```
