update

嵌套查询.md

@@ -16,6 +16,8 @@ fsql.Select<User1>()
     .ToList();
 ```
 
+> 提示：支持多表嵌套查询，fsql.Select\<User1, UserGroup1\>()
+
 ```sql
 SELECT *
 FROM (
@@ -26,38 +28,11 @@ FROM (
 WHERE (a.[rownum] = 1)
 ```
 
-场景2：多表查询嵌套
-
-```c#
-fsql.Select<User1, UserGroup>()
-    .InnerJoin((a, b) => a.GroupId == b.Id)
-    .Where((a, b) => b.GroupName == "group1")
-    .WithTempQuery((a, b) => new
-    {
-        User = a,
-        GroupName = b.GroupName,
-        rownum = SqlExt.RowNumber().Over().PartitionBy(b.GroupName).OrderBy(a.Id).ToValue()
-    })
-    .Where(a => a.rownum == 1)
-    .ToList();
-```
-
-```sql
-SELECT *
-FROM (
-    SELECT a.[Id], a.[Nickname], b.[GroupName], row_number() over( partition by b.[GroupName] order by a.[Id]) [rownum]
-    FROM [User1] a
-    INNER JOIN [UserGroup] b ON a.[GroupId] = b.[Id]
-    WHERE (b.[GroupName] = 'group1')
- ) a
-WHERE (a.[rownum] = 1)
-```
-
-场景3：分组查询嵌套
+场景2：分组查询嵌套
 
 待补充..
 
-场景4：嵌套查询 + Join
+场景3：嵌套查询 + Join
 
 待补充..