update

嵌套查询.md

@@ -158,6 +158,39 @@ INNER JOIN (
 ) b ON a.[Id] = b.[GroupId]
 ```
 
+## WithParameters 参数化共享
+
+开启参数化查询功能后，使用 WithParameters 共享参数化，避免产生相同的参数名称：
+
+```csharp
+var dbpars = new List<DbParameter>();
+
+var id1 = 1;
+var id2 = 2;
+var sql = fsql.Select<User1>()
+    .WithParameters(dbpars)
+    .Where(a => a.Id == id1)
+
+    .FromQuery(
+        fsql.Select<User1>()
+            .WithParameters(dbpars)
+            .Where(a => a.Id == id2)
+    )
+    .ToSql();
+```
+
+```sql
+SELECT a."Id", a."GroupId", a."Username" 
+FROM ( SELECT a."Id", a."GroupId", a."Username" 
+    FROM "User1" a 
+    WHERE (a."Id" = @exp_0) 
+    UNION ALL 
+    SELECT a."Id", a."GroupId", a."Username" 
+    FROM "User1" a 
+    WHERE (a."Id" = @exp_1) ) a 
+WHERE ((a."Id" = 1 OR a."Id" = 2))
+```
+
 ---
 
 ## 子表Exists

联合查询.md

@@ -2,7 +2,7 @@
 
 GroupBy + WithTempQuery(嵌套查询) + FromQuery + UnionAll 组合使用，会让查询功能更加强大、灵活。
 
-1、单表 UNION ALL
+## 单表 UNION ALL
 
 ```csharp
 var sql = fsql.Select<User>().Where(a => a.Id == 1)
@@ -30,7 +30,7 @@ FROM ( SELECT a."Id", a."GroupId", a."Username"
 WHERE ((a."Id" = 1 OR a."Id" = 2))
 ```
 
-2、多表 UNION ALL
+## 多表 UNION ALL
 
 ```csharp
 var sql = fsql.Select<User, Group>()
@@ -78,7 +78,7 @@ WHERE ((a."Id" = 1 OR a."Id" = 2))
     })
 ```
 
-3、WithParameters 参数化共享
+## WithParameters 参数化共享
 
 开启参数化查询功能后，使用 WithParameters 共享参数化，避免产生相同的参数名称：