diff --git a/samples/Sample.MySql/DbContexts/DefaultShardingDbContext.cs b/samples/Sample.MySql/DbContexts/DefaultShardingDbContext.cs
index 8e0a344f..80cec380 100644
--- a/samples/Sample.MySql/DbContexts/DefaultShardingDbContext.cs
+++ b/samples/Sample.MySql/DbContexts/DefaultShardingDbContext.cs
@@ -33,6 +33,9 @@ namespace Sample.MySql.DbContexts
                 _configureGlobalFiltersMethodInfo?.MakeGenericMethod(entityType.ClrType)
                     .Invoke(this, new object[] { modelBuilder, entityType });
             }
+
+            modelBuilder.Entity<SysUserLogByMonth>().HasData(new SysUserLogByMonth() { Id = "1", Time = DateTime.Now });
+            modelBuilder.Entity<SysTest>().HasData(new SysTest() { Id = "1", UserId = "123" });
         }
 
         
diff --git a/samples/Sample.MySql/Startup.cs b/samples/Sample.MySql/Startup.cs
index 22e17dc2..565cfdc5 100644
--- a/samples/Sample.MySql/Startup.cs
+++ b/samples/Sample.MySql/Startup.cs
@@ -196,21 +196,21 @@ namespace Sample.MySql
             // var shardingRuntimeContext = app.ApplicationServices.GetRequiredService<IShardingRuntimeContext>();
             // var entityMetadataManager = shardingRuntimeContext.GetEntityMetadataManager();
             // var entityMetadata = entityMetadataManager.TryGet<SysUserMod>();
-            using (var scope = app.ApplicationServices.CreateScope())
-            {
-                var defaultShardingDbContext = scope.ServiceProvider.GetService<DefaultShardingDbContext>();
-                // if (defaultShardingDbContext.Database.GetPendingMigrations().Any())
-                {
-                    try
-                    {
-            
-                        defaultShardingDbContext.Database.Migrate();
-                    }
-                    catch (Exception e)
-                    {
-                    }
-                }
-            }
+            // using (var scope = app.ApplicationServices.CreateScope())
+            // {
+            //     var defaultShardingDbContext = scope.ServiceProvider.GetService<DefaultShardingDbContext>();
+            //     // if (defaultShardingDbContext.Database.GetPendingMigrations().Any())
+            //     {
+            //         try
+            //         {
+            //
+            //             defaultShardingDbContext.Database.Migrate();
+            //         }
+            //         catch (Exception e)
+            //         {
+            //         }
+            //     }
+            // }
             // using (var scope = app.ApplicationServices.CreateScope())
             // {
             //     var defaultShardingDbContext = scope.ServiceProvider.GetService<OtherDbContext>();
diff --git a/src/ShardingCore/Extensions/DbContextExtension.cs b/src/ShardingCore/Extensions/DbContextExtension.cs
index c964d751..b233dde1 100644
--- a/src/ShardingCore/Extensions/DbContextExtension.cs
+++ b/src/ShardingCore/Extensions/DbContextExtension.cs
@@ -192,15 +192,23 @@ namespace ShardingCore.Extensions
         public static void RemoveDbContextRelationModelSaveOnlyThatIsNamedType(this DbContext dbContext,
             Type shardingType)
         {
-#if !EFCORE2&&!EFCORE3&&!EFCORE5&&!EFCORE6
-            throw new NotImplementedException();
+#if !EFCORE2 && !EFCORE3 && !EFCORE5 && !EFCORE6
+            1
 #endif
 #if EFCORE2 ||EFCORE3 ||EFCORE5
 
             var contextModel = dbContext.Model as Model;
 #endif
 #if EFCORE6
-            var contextModel = dbContext.GetService<IDesignTimeModel>().Model; ;
+            var contextModel = dbContext.GetService<IDesignTimeModel>().Model;
+            var entityTypes = contextModel.GetEntityTypes();
+            foreach (var entityType in entityTypes)
+            {
+                if (entityType.GetFieldValue("_data") is List<object> _data)
+                {
+                    _data.Clear();
+                }
+            }
             var contextModelRelationalModel = contextModel.GetRelationalModel() as RelationalModel;
             var valueTuples =
                 contextModelRelationalModel.Tables
@@ -214,6 +222,15 @@ namespace ShardingCore.Extensions
 
 #if EFCORE5
             var contextModelRelationalModel = contextModel.RelationalModel as RelationalModel;
+            
+            var entityTypes = contextModel.GetEntityTypes();
+            foreach (var entityType in entityTypes)
+            {
+                if (entityType.GetFieldValue("_data") is List<object> _data)
+                {
+                    _data.Clear();
+                }
+            }
             var valueTuples = contextModelRelationalModel.Tables
                 .Where(o => o.Value.EntityTypeMappings.All(m => m.EntityType.ClrType != shardingType))
                 .Select(o => o.Key).ToList();
@@ -225,6 +242,14 @@ namespace ShardingCore.Extensions
 #if EFCORE2 || EFCORE3
             var entityTypes =
                 contextModel.GetFieldValue("_entityTypes") as SortedDictionary<string, EntityType>;
+            
+            foreach (var entityType in entityTypes)
+            {
+                if (entityType.GetFieldValue("_data") is List<object> _data)
+                {
+                    _data.Clear();
+                }
+            }
             var list = entityTypes.Where(o=>o.Value.ClrType!=shardingType).Select(o=>o.Key).ToList();
             for (int i = 0; i < list.Count; i++)
             {