diff --git a/Insert-Data.md b/Insert-Data.md
index 06880e2..d9945f8 100644
--- a/Insert-Data.md
+++ b/Insert-Data.md
@@ -43,6 +43,8 @@ repo.Insert(items[0]);
 ```
 > In the internal implementation, after inserting the data, the self-incremental value will be assigned to `items[0].Id` (support batch insert backfill)
 
+> DbFirst sequence: [Column(IsIdentity = true, InsertValueSql = "seqname.nextval")]
+
 ## 2. Batch Insert
 
 ```csharp
diff --git a/添加.md b/添加.md
index 26909bb..3482d0d 100644
--- a/添加.md
+++ b/添加.md
@@ -46,6 +46,8 @@ repo.Insert(items[0]);
 
 > 内部会将插入后的自增值填充给 items[0].Id (支持批量插入回填)
 
+> DbFirst 模式序列：[Column(IsIdentity = true, InsertValueSql = "seqname.nextval")]
+
 ## 2、批量插入
 
 ```csharp