diff --git a/docs/en/07-data-in/01-insert-data.md b/docs/en/07-data-in/01-insert-data.md
index bff8fd93d19b94e1174c94090dc1bd2cd261cefe..f9c64601c0722e81d42b8eac345810a6596ceddc 100644
--- a/docs/en/07-data-in/01-insert-data.md
+++ b/docs/en/07-data-in/01-insert-data.md
@@ -42,6 +42,11 @@ For more details about `INSERT` please refer to [INSERT](https://docs.tdengine.c
 
 ## Connector Examples
 
+:::note
+Before executing the sample code in this section, you need to firstly establish connection to TDegnine cloud service, please refer to [Connect to TDengine Cloud Service](../../programming/connect/).
+
+:::
+
 <Tabs>
 <TabItem value="python" label="Python">
 
diff --git a/docs/en/09-data-out/01-query-data.md b/docs/en/09-data-out/01-query-data.md
index b6958860bb8b8aedfaebafd5b2bd12acbd74facc..24ea7ffcdd7cd08266bb0cac8425be51cb00abd3 100644
--- a/docs/en/09-data-out/01-query-data.md
+++ b/docs/en/09-data-out/01-query-data.md
@@ -123,6 +123,11 @@ For more details please refer to [Aggregate by Window](https://docs.tdengine.com
 
 ## Connector Examples
 
+:::note
+Before executing the sample code in this section, you need to firstly establish connection to TDegnine cloud service, please refer to [Connect to TDengine Cloud Service](../../programming/connect/).
+
+:::
+
 <Tabs>
 <TabItem value="python" label="Python">