diff --git a/Tiobon.Core.Api/Tiobon.Core.Model.xml b/Tiobon.Core.Api/Tiobon.Core.Model.xml
index 3432ff8a..9f7e8985 100644
--- a/Tiobon.Core.Api/Tiobon.Core.Model.xml
+++ b/Tiobon.Core.Api/Tiobon.Core.Model.xml
@@ -1794,6 +1794,16 @@
             Ghra_Grade
             </summary>
         </member>
+        <member name="P:Tiobon.Core.Model.EntityAttribute.TableName">
+            <summary>
+            真实表名(数据库表名，若没有填写默认实体为表名)
+            </summary>
+        </member>
+        <member name="P:Tiobon.Core.Model.EntityAttribute.TableCnName">
+            <summary>
+            表中文名
+            </summary>
+        </member>
         <member name="T:Tiobon.Core.Model.IDS4DbModels.ApplicationRole">
             <summary>
             以下model 来自ids4项目，多库模式，为了调取ids4数据
diff --git a/Tiobon.Core.Common/Tiobon.Core.Common.csproj b/Tiobon.Core.Common/Tiobon.Core.Common.csproj
index 2d619448..c5bbb911 100644
--- a/Tiobon.Core.Common/Tiobon.Core.Common.csproj
+++ b/Tiobon.Core.Common/Tiobon.Core.Common.csproj
@@ -9,6 +9,9 @@
   </ItemGroup>
 
   <ItemGroup>
+    <Compile Remove="DB\DbSql\DbInsert.cs" />
+    <Compile Remove="DB\DbSql\DbSelect.cs" />
+    <Compile Remove="DB\DbSql\DbUpdate.cs" />
     <Compile Remove="LogHelper\ILoggerHelper.cs" />
     <Compile Remove="LogHelper\LogHelper.cs" />
   </ItemGroup>
@@ -47,6 +50,7 @@
 
   <ItemGroup>
     <Folder Include="Core\" />
+    <Folder Include="DB\DbSql\" />
   </ItemGroup>
 
 </Project>
diff --git a/Tiobon.Core.Model/Entity/AttributeManager/EntityAttribute.cs b/Tiobon.Core.Model/Entity/AttributeManager/EntityAttribute.cs
new file mode 100644
index 00000000..068259c2
--- /dev/null
+++ b/Tiobon.Core.Model/Entity/AttributeManager/EntityAttribute.cs
@@ -0,0 +1,32 @@
+namespace Tiobon.Core.Model
+{
+    public class EntityAttribute : Attribute
+    {
+        /// <summary>
+        /// 真实表名(数据库表名，若没有填写默认实体为表名)
+        /// </summary>
+        public string TableName { get; set; }
+        /// <summary>
+        /// 表中文名
+        /// </summary>
+        public string TableCnName { get; set; }
+        ///// <summary>
+        ///// 子表
+        ///// </summary>
+        //public Type[] DetailTable { get; set; }
+        ///// <summary>
+        ///// 子表中文名
+        ///// </summary>
+        //public string DetailTableCnName { get; set; }
+        ///// <summary>
+        ///// 数据库
+        ///// </summary>
+        //public string DBServer { get; set; }
+
+        ////是否开启用户数据权限,true=用户只能操作自己(及下级角色)创建的数据,如:查询、删除、修改等操作
+        //public bool CurrentUserPermission { get; set; }
+
+        //public Type ApiInput { get; set; }
+        //public Type ApiOutput { get; set; }
+    }
+}
diff --git a/Tiobon.Core.Model/Models/Ghra/Ghra_Grade.cs b/Tiobon.Core.Model/Models/Ghra/Ghra_Grade.cs
index 78096628..45feea52 100644
--- a/Tiobon.Core.Model/Models/Ghra/Ghra_Grade.cs
+++ b/Tiobon.Core.Model/Models/Ghra/Ghra_Grade.cs
@@ -24,7 +24,7 @@ namespace Tiobon.Core.Model.Models
     /// <summary>
     /// Ghra_Grade
     /// </summary>
-    [SugarTable("Ghra_Grade", "Ghra_Grade")]
+    [SugarTable("Ghra_Grade", "Ghra_Grade"), Entity(TableCnName = "BOM", TableName = "PsBOM")]
     public class Ghra_Grade : BasePoco
     {