diff --git a/Src/Asp.Net/SqlServerTest/Demos/8_JoinSql.cs b/Src/Asp.Net/SqlServerTest/Demos/8_JoinSql.cs
index 78adb85b8..b7f84092b 100644
--- a/Src/Asp.Net/SqlServerTest/Demos/8_JoinSql.cs
+++ b/Src/Asp.Net/SqlServerTest/Demos/8_JoinSql.cs
@@ -1,5 +1,6 @@
 using OrmTest.Demo;
 using OrmTest.Models;
+using SqlSugar;
 using System;
 using System.Collections.Generic;
 using System.Linq;
@@ -16,8 +17,19 @@ namespace OrmTest.Demo
         {
             Where();
             OrderBy();
+            SelectMerge();
         }
+        private static void SelectMerge()
+        {
+            var db = GetInstance();
+            //page join
+            var pageJoin = db.Queryable<Student, School>((st, sc) => new object[] {
+              JoinType.Left,st.SchoolId==sc.Id
+            })
+            .Select((st, sc) => new { id = st.Id, name = sc.Name })
+            .SelectMergeAsTable().Where(XXX => XXX.id == 1).OrderBy("name asc").ToList();// Prefix, is, not, necessary, and take the columns in select
 
+        }
         private static void Where()
         {
             var db = GetInstance();