diff --git a/solution/2000-2099/2084.Drop Type 1 Orders for Customers With Type 0 Orders/README.md b/solution/2000-2099/2084.Drop Type 1 Orders for Customers With Type 0 Orders/README.md
index 52a20d1a05b30..594698c4ce26e 100644
--- a/solution/2000-2099/2084.Drop Type 1 Orders for Customers With Type 0 Orders/README.md	
+++ b/solution/2000-2099/2084.Drop Type 1 Orders for Customers With Type 0 Orders/README.md	
@@ -92,4 +92,15 @@ FROM Orders AS o
 WHERE order_type = 0 OR NOT EXISTS (SELECT 1 FROM T AS t WHERE t.customer_id = o.customer_id);
 ```
 
+```sql
+SELECT DISTINCT
+    a.order_id,
+    a.customer_id,
+    a.order_type
+FROM
+    Orders AS a
+    LEFT JOIN Orders AS b ON a.customer_id = b.customer_id AND a.order_type != b.order_type
+WHERE b.order_type IS NULL OR b.order_type = 1;
+```
+
 <!-- tabs:end -->
diff --git a/solution/2000-2099/2084.Drop Type 1 Orders for Customers With Type 0 Orders/README_EN.md b/solution/2000-2099/2084.Drop Type 1 Orders for Customers With Type 0 Orders/README_EN.md
index 733995ebfe32b..5afadad98d138 100644
--- a/solution/2000-2099/2084.Drop Type 1 Orders for Customers With Type 0 Orders/README_EN.md	
+++ b/solution/2000-2099/2084.Drop Type 1 Orders for Customers With Type 0 Orders/README_EN.md	
@@ -88,4 +88,15 @@ FROM Orders AS o
 WHERE order_type = 0 OR NOT EXISTS (SELECT 1 FROM T AS t WHERE t.customer_id = o.customer_id);
 ```
 
+```sql
+SELECT DISTINCT
+    a.order_id,
+    a.customer_id,
+    a.order_type
+FROM
+    Orders AS a
+    LEFT JOIN Orders AS b ON a.customer_id = b.customer_id AND a.order_type != b.order_type
+WHERE b.order_type IS NULL OR b.order_type = 1;
+```
+
 <!-- tabs:end -->