update

Update-Data.md

@@ -158,6 +158,14 @@ fsql.Update<Topic>()
 
 > After the specified `Set` column is updated, `SetSource` will become invalid
 
+> SetSource defaults to relying on the IsPrimary attribute of the entity, and temporary primary keys can use SetSource (items, a=>a. Code)
+
+> Oracle CASE when N '' character set mismatch,
+
+- Reason: Inconsistency between entity primary key Column DbType and table type,
+
+- Solution: [Column (DbType = "varchar2", StingLength = 255)]
+
 ## 4. Custom SQL
 
 ```csharp

修改.md

@@ -161,6 +161,11 @@ fsql.Update<Topic>()
 
 > SetSource 默认依赖实体 IsPrimary 特性，临时主键可使用 SetSource(items, a => a.Code)
 
+> Oracle CASE when N'' 字符集不匹配，
+
+- 原因：实体主键 Column DbType 与表类型不一致造成，
+- 解决：[Column(DbType = "varchar2", StingLength = 255)]
+
 ## 4、自定义SQL
 
 ```csharp