diff --git a/docs/en/12-taos-sql/02-database.md b/docs/en/12-taos-sql/02-database.md
index 6aff240dfd..ccf340b511 100644
--- a/docs/en/12-taos-sql/02-database.md
+++ b/docs/en/12-taos-sql/02-database.md
@@ -138,6 +138,10 @@ You can use `show <db_name>.vgroups;` to check the value of cacheload.
 
 If the value of `cacheload` is very close to the value of `cachesize`, then it's very probably that `cachesize` is too small. If the value of `cacheload` is much smaller than the value of `cachesize`, then `cachesize` is big enough. You can use this simple principle to determine. Depending on how much memory is available in your system, you can choose to double `cachesize` or incrase it by even 5 or more times.
 
+4. stt_trigger
+
+Pleae make sure stopping data writing before trying to alter stt_trigger parameter. 
+
 :::note
 Other parameters cannot be modified after the database has been created.