diff --git a/src/ShardingCore/DIExtensions/ShardingCoreConfigEndBuilder.cs b/src/ShardingCore/DIExtensions/ShardingCoreConfigEndBuilder.cs
index e3c975ac..00adebf5 100644
--- a/src/ShardingCore/DIExtensions/ShardingCoreConfigEndBuilder.cs
+++ b/src/ShardingCore/DIExtensions/ShardingCoreConfigEndBuilder.cs
@@ -13,6 +13,7 @@ using ShardingCore.Sharding.ReadWriteConfigurations.Abstractions;
 using ShardingCore.Sharding.ShardingComparision;
 using ShardingCore.Sharding.ShardingComparision.Abstractions;
 using ShardingCore.TableExists;
+using ShardingCore.TableExists.Abstractions;
 
 namespace ShardingCore.DIExtensions
 {
diff --git a/src/ShardingCore/DIExtensions/ShardingDataBaseOrTableBuilder.cs b/src/ShardingCore/DIExtensions/ShardingDataBaseOrTableBuilder.cs
index 9ff026b2..8e97ecf1 100644
--- a/src/ShardingCore/DIExtensions/ShardingDataBaseOrTableBuilder.cs
+++ b/src/ShardingCore/DIExtensions/ShardingDataBaseOrTableBuilder.cs
@@ -5,6 +5,7 @@ using Microsoft.EntityFrameworkCore;
 using ShardingCore.Sharding.Abstractions;
 using ShardingCore.Sharding.ShardingComparision.Abstractions;
 using ShardingCore.TableExists;
+using ShardingCore.TableExists.Abstractions;
 
 namespace ShardingCore.DIExtensions
 {
diff --git a/src/ShardingCore/DIExtensions/ShardingDataSourceRouteBuilder.cs b/src/ShardingCore/DIExtensions/ShardingDataSourceRouteBuilder.cs
index d04571fa..c8ca2ae3 100644
--- a/src/ShardingCore/DIExtensions/ShardingDataSourceRouteBuilder.cs
+++ b/src/ShardingCore/DIExtensions/ShardingDataSourceRouteBuilder.cs
@@ -5,6 +5,7 @@ using Microsoft.EntityFrameworkCore;
 using ShardingCore.Sharding.Abstractions;
 using ShardingCore.Sharding.ShardingComparision.Abstractions;
 using ShardingCore.TableExists;
+using ShardingCore.TableExists.Abstractions;
 
 namespace ShardingCore.DIExtensions
 {
diff --git a/src/ShardingCore/DIExtensions/ShardingReadWriteSeparationBuilder.cs b/src/ShardingCore/DIExtensions/ShardingReadWriteSeparationBuilder.cs
index 4f25d144..c6b4b8c6 100644
--- a/src/ShardingCore/DIExtensions/ShardingReadWriteSeparationBuilder.cs
+++ b/src/ShardingCore/DIExtensions/ShardingReadWriteSeparationBuilder.cs
@@ -6,6 +6,7 @@ using ShardingCore.Sharding.Abstractions;
 using ShardingCore.Sharding.ReadWriteConfigurations;
 using ShardingCore.Sharding.ShardingComparision.Abstractions;
 using ShardingCore.TableExists;
+using ShardingCore.TableExists.Abstractions;
 
 namespace ShardingCore.DIExtensions
 {
diff --git a/src/ShardingCore/DIExtensions/ShardingTableBuilder.cs b/src/ShardingCore/DIExtensions/ShardingTableBuilder.cs
index 7a5641c3..68b77fb4 100644
--- a/src/ShardingCore/DIExtensions/ShardingTableBuilder.cs
+++ b/src/ShardingCore/DIExtensions/ShardingTableBuilder.cs
@@ -5,6 +5,7 @@ using Microsoft.EntityFrameworkCore;
 using ShardingCore.Sharding.Abstractions;
 using ShardingCore.Sharding.ShardingComparision.Abstractions;
 using ShardingCore.TableExists;
+using ShardingCore.TableExists.Abstractions;
 
 namespace ShardingCore.DIExtensions
 {
diff --git a/src/ShardingCore/DynamicDataSources/DefaultDataSourceInitializer.cs b/src/ShardingCore/DynamicDataSources/DefaultDataSourceInitializer.cs
index 9043b310..64f85508 100644
--- a/src/ShardingCore/DynamicDataSources/DefaultDataSourceInitializer.cs
+++ b/src/ShardingCore/DynamicDataSources/DefaultDataSourceInitializer.cs
@@ -21,6 +21,7 @@ using ShardingCore.Sharding.Abstractions;
 using ShardingCore.Sharding.ParallelTables;
 using ShardingCore.TableCreator;
 using ShardingCore.TableExists;
+using ShardingCore.TableExists.Abstractions;
 
 namespace ShardingCore.DynamicDataSources
 {
@@ -68,7 +69,6 @@ namespace ShardingCore.DynamicDataSources
                 foreach (var entity in context.Model.GetEntityTypes())
                 {
                     var entityType = entity.ClrType;
-
                     if (_virtualDataSource.IsDefault(dataSourceName))
                     {
                         if (_entityMetadataManager.IsShardingTable(entityType))
diff --git a/src/ShardingCore/ShardingConfigOption.cs b/src/ShardingCore/ShardingConfigOption.cs
index ffecdd17..a0ca3174 100644
--- a/src/ShardingCore/ShardingConfigOption.cs
+++ b/src/ShardingCore/ShardingConfigOption.cs
@@ -15,6 +15,7 @@ using ShardingCore.Sharding.ParallelTables;
 using ShardingCore.Sharding.ShardingComparision;
 using ShardingCore.Sharding.ShardingComparision.Abstractions;
 using ShardingCore.TableExists;
+using ShardingCore.TableExists.Abstractions;
 
 namespace ShardingCore
 {
diff --git a/src/ShardingCore/TableExists/AbstractTableEnsureManager.cs b/src/ShardingCore/TableExists/Abstractions/AbstractTableEnsureManager.cs
similarity index 97%
rename from src/ShardingCore/TableExists/AbstractTableEnsureManager.cs
rename to src/ShardingCore/TableExists/Abstractions/AbstractTableEnsureManager.cs
index a438c516..c5d9d1b0 100644
--- a/src/ShardingCore/TableExists/AbstractTableEnsureManager.cs
+++ b/src/ShardingCore/TableExists/Abstractions/AbstractTableEnsureManager.cs
@@ -10,7 +10,7 @@ using ShardingCore.Core.VirtualRoutes.TableRoutes.RouteTails;
 using ShardingCore.Core.VirtualRoutes.TableRoutes.RouteTails.Abstractions;
 using ShardingCore.Sharding.Abstractions;
 
-namespace ShardingCore.TableExists
+namespace ShardingCore.TableExists.Abstractions
 {
     public abstract class AbstractTableEnsureManager<TShardingDbContext> : ITableEnsureManager<TShardingDbContext> where TShardingDbContext : DbContext, IShardingDbContext
     {
diff --git a/src/ShardingCore/TableExists/ITableEnsureManager.cs b/src/ShardingCore/TableExists/Abstractions/ITableEnsureManager.cs
similarity index 92%
rename from src/ShardingCore/TableExists/ITableEnsureManager.cs
rename to src/ShardingCore/TableExists/Abstractions/ITableEnsureManager.cs
index 678f7b5a..ba78e52d 100644
--- a/src/ShardingCore/TableExists/ITableEnsureManager.cs
+++ b/src/ShardingCore/TableExists/Abstractions/ITableEnsureManager.cs
@@ -6,7 +6,7 @@ using System.Threading.Tasks;
 using Microsoft.EntityFrameworkCore;
 using ShardingCore.Sharding.Abstractions;
 
-namespace ShardingCore.TableExists
+namespace ShardingCore.TableExists.Abstractions
 {
     public interface ITableEnsureManager
     {
diff --git a/src/ShardingCore/TableExists/EmptyTableEnsureManager.cs b/src/ShardingCore/TableExists/EmptyTableEnsureManager.cs
index d2adabde..05cb2ade 100644
--- a/src/ShardingCore/TableExists/EmptyTableEnsureManager.cs
+++ b/src/ShardingCore/TableExists/EmptyTableEnsureManager.cs
@@ -5,6 +5,7 @@ using System.Text;
 using System.Threading.Tasks;
 using Microsoft.EntityFrameworkCore;
 using ShardingCore.Sharding.Abstractions;
+using ShardingCore.TableExists.Abstractions;
 
 namespace ShardingCore.TableExists
 {
diff --git a/src/ShardingCore/TableExists/MySqlTableEnsureManager.cs b/src/ShardingCore/TableExists/MySqlTableEnsureManager.cs
index fd731a30..39ae1ce1 100644
--- a/src/ShardingCore/TableExists/MySqlTableEnsureManager.cs
+++ b/src/ShardingCore/TableExists/MySqlTableEnsureManager.cs
@@ -6,6 +6,7 @@ using System.Text;
 using System.Threading.Tasks;
 using Microsoft.EntityFrameworkCore;
 using ShardingCore.Sharding.Abstractions;
+using ShardingCore.TableExists.Abstractions;
 
 namespace ShardingCore.TableExists
 {
diff --git a/src/ShardingCore/TableExists/SqlServerTableEnsureManager.cs b/src/ShardingCore/TableExists/SqlServerTableEnsureManager.cs
index 42fd9dda..d22fe6e4 100644
--- a/src/ShardingCore/TableExists/SqlServerTableEnsureManager.cs
+++ b/src/ShardingCore/TableExists/SqlServerTableEnsureManager.cs
@@ -9,6 +9,7 @@ using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.DependencyInjection;
 using ShardingCore.Core.VirtualRoutes.TableRoutes.RouteTails;
 using ShardingCore.Sharding.Abstractions;
+using ShardingCore.TableExists.Abstractions;
 
 namespace ShardingCore.TableExists
 {