diff --git a/CarCenter/CarCenterBusinessLogic/BusinessLogics/PreSaleWorkLogic.cs b/CarCenter/CarCenterBusinessLogic/BusinessLogics/PreSaleWorkLogic.cs
index 65ed5e2..e4bc85b 100644
--- a/CarCenter/CarCenterBusinessLogic/BusinessLogics/PreSaleWorkLogic.cs
+++ b/CarCenter/CarCenterBusinessLogic/BusinessLogics/PreSaleWorkLogic.cs
@@ -86,7 +86,7 @@ namespace CarCenterBusinessLogic.BusinessLogics
             return true;
         }
 
-        public PreSaleWorkModel? ReadElement(PreSaleWorkSearchModel model)
+        public PreSaleWorkViewModel? ReadElement(PreSaleWorkSearchModel model)
         {
             if (model == null)
             {
@@ -108,7 +108,7 @@ namespace CarCenterBusinessLogic.BusinessLogics
             return element;
         }
 
-        public List<PreSaleWorkModel>? ReadList(PreSaleWorkSearchModel? model)
+        public List<PreSaleWorkViewModel>? ReadList(PreSaleWorkSearchModel? model)
         {
             _logger.LogInformation("ReadList. PreSaleWorkType:{PreSaleWorkType}.Id:{ Id}", model?.PreSaleWorkType, model?.Id);
 
diff --git a/CarCenter/CarCenterBusinessLogic/CarCenterBusinessLogic.csproj b/CarCenter/CarCenterBusinessLogic/CarCenterBusinessLogic.csproj
index 0e458bd..5480315 100644
--- a/CarCenter/CarCenterBusinessLogic/CarCenterBusinessLogic.csproj
+++ b/CarCenter/CarCenterBusinessLogic/CarCenterBusinessLogic.csproj
@@ -12,6 +12,7 @@
 
   <ItemGroup>
     <ProjectReference Include="..\CarCenterContracts\CarCenterContracts.csproj" />
+    <ProjectReference Include="..\CarCenterDataBaseImplement\CarCenterDataBaseImplement.csproj" />
   </ItemGroup>
 
 </Project>
diff --git a/CarCenter/CarCenterContracts/BusinessLogicsContracts/IPreSaleWorkLogic.cs b/CarCenter/CarCenterContracts/BusinessLogicsContracts/IPreSaleWorkLogic.cs
index e8b230b..c04c471 100644
--- a/CarCenter/CarCenterContracts/BusinessLogicsContracts/IPreSaleWorkLogic.cs
+++ b/CarCenter/CarCenterContracts/BusinessLogicsContracts/IPreSaleWorkLogic.cs
@@ -7,8 +7,8 @@ namespace CarCenterContracts.BusinessLogicsContracts
 {
     public interface IPreSaleWorkLogic
     {
-        List<PreSaleWorkModel>? ReadList(PreSaleWorkSearchModel? model);
-        PreSaleWorkModel? ReadElement(PreSaleWorkSearchModel model);
+        List<PreSaleWorkViewModel>? ReadList(PreSaleWorkSearchModel? model);
+        PreSaleWorkViewModel? ReadElement(PreSaleWorkSearchModel model);
         bool AddSaleToPreSaleWork(PreSaleWorkSearchModel model, ISaleModel Sale);
         bool Create(PreSaleWorkBindingModel model);
         bool Update(PreSaleWorkBindingModel model);
diff --git a/CarCenter/CarCenterContracts/StoragesContracts/IPreSaleWorkStorage.cs b/CarCenter/CarCenterContracts/StoragesContracts/IPreSaleWorkStorage.cs
index f36eee4..c43dba2 100644
--- a/CarCenter/CarCenterContracts/StoragesContracts/IPreSaleWorkStorage.cs
+++ b/CarCenter/CarCenterContracts/StoragesContracts/IPreSaleWorkStorage.cs
@@ -6,16 +6,16 @@ namespace CarCenterContracts.StoragesContracts
 {
     public interface IPreSaleWorkStorage
     {
-        List<PreSaleWorkModel> GetFullList();
+        List<PreSaleWorkViewModel> GetFullList();
 
-        List<PreSaleWorkModel> GetFilteredList(PreSaleWorkSearchModel model);
+        List<PreSaleWorkViewModel> GetFilteredList(PreSaleWorkSearchModel model);
 
-        PreSaleWorkModel? GetElement(PreSaleWorkSearchModel model);
+        PreSaleWorkViewModel? GetElement(PreSaleWorkSearchModel model);
 
-        PreSaleWorkModel? Insert(PreSaleWorkBindingModel model);
+        PreSaleWorkViewModel? Insert(PreSaleWorkBindingModel model);
 
-        PreSaleWorkModel? Update(PreSaleWorkBindingModel model);
+        PreSaleWorkViewModel? Update(PreSaleWorkBindingModel model);
 
-        PreSaleWorkModel? Delete(PreSaleWorkBindingModel model);
+        PreSaleWorkViewModel? Delete(PreSaleWorkBindingModel model);
     }
 }
diff --git a/CarCenter/CarCenterContracts/ViewModels/PreSaleWorkModel.cs b/CarCenter/CarCenterContracts/ViewModels/PreSaleWorkViewModel.cs
similarity index 80%
rename from CarCenter/CarCenterContracts/ViewModels/PreSaleWorkModel.cs
rename to CarCenter/CarCenterContracts/ViewModels/PreSaleWorkViewModel.cs
index bceb89d..2c51e97 100644
--- a/CarCenter/CarCenterContracts/ViewModels/PreSaleWorkModel.cs
+++ b/CarCenter/CarCenterContracts/ViewModels/PreSaleWorkViewModel.cs
@@ -4,7 +4,7 @@ using Newtonsoft.Json;
 
 namespace CarCenterContracts.ViewModels
 {
-    public class PreSaleWorkModel : IPreSaleWorkModel
+    public class PreSaleWorkViewModel : IPreSaleWorkModel
     {
         [DisplayName("Тип предпродажной работы")]
         public string PreSaleWorkType { get; set; } = string.Empty;
@@ -19,10 +19,10 @@ namespace CarCenterContracts.ViewModels
         public Dictionary<int, ISaleModel> PreSaleWorkSale { get; set; } = new();
         public Dictionary<int, ICarModel> PreSaleWorkCars { get; set; } = new();
 
-        public PreSaleWorkModel() { }
+        public PreSaleWorkViewModel() { }
 
         [JsonConstructor]
-        public PreSaleWorkModel(Dictionary<int, SaleViewModel> PreSaleWorkSale, Dictionary<int, CarViewModel> PreSaleWorkCars)
+        public PreSaleWorkViewModel(Dictionary<int, SaleViewModel> PreSaleWorkSale, Dictionary<int, CarViewModel> PreSaleWorkCars)
         {
             this.PreSaleWorkSale = PreSaleWorkSale.ToDictionary(x => x.Key, x => x.Value as ISaleModel);
             this.PreSaleWorkCars = PreSaleWorkCars.ToDictionary(x => x.Key, x => x.Value as ICarModel);
diff --git a/CarCenter/CarCenterDataBaseImplement/CarCenterDataBase.cs b/CarCenter/CarCenterDataBaseImplement/CarCenterDataBase.cs
new file mode 100644
index 0000000..b640833
--- /dev/null
+++ b/CarCenter/CarCenterDataBaseImplement/CarCenterDataBase.cs
@@ -0,0 +1,30 @@
+using CarCenterDataBaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace CarCenterDataBaseImplement
+{
+    public class CarCenterDataBase : DbContext
+    {
+        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+        {
+            if (optionsBuilder.IsConfigured == false)
+            {
+                optionsBuilder.UseSqlServer(@"Data Source=localhost\SQLEXPRESS;Initial Catalog=CarCenterDataBaseFu;Integrated Security=True;MultipleActiveResultSets=True;;TrustServerCertificate=True");
+            }
+            base.OnConfiguring(optionsBuilder);
+        }
+        public virtual DbSet<Employee> Employees { set; get; }
+        public virtual DbSet<Equipment> Equipments { set; get; }
+        public virtual DbSet<PreSaleWork> PreSaleWorks { set; get; }
+        public virtual DbSet<Inspection> Inspections { set; get; }
+        public virtual DbSet<Sale> Sales { set; get; }
+        public virtual DbSet<Car> Cars { set; get; }
+        public virtual DbSet<Manager> Managers { set; get; }
+        public virtual DbSet<Administrator> Administrators { set; get; }
+        public virtual DbSet<EmployeeSale> EmployeeSales { set; get; }
+        public virtual DbSet<EquipmentCar> EquipmentCars { set; get; }
+        public virtual DbSet<PreSaleWorkSale> PreSaleWorkSales { set; get; }
+        public virtual DbSet<InspectionCar> InspectionCars { set; get; }
+
+    }
+}
\ No newline at end of file
diff --git a/CarCenter/CarCenterDataBaseImplement/CarCenterDataBaseImplement.csproj b/CarCenter/CarCenterDataBaseImplement/CarCenterDataBaseImplement.csproj
index 66e3a1c..d3ebafb 100644
--- a/CarCenter/CarCenterDataBaseImplement/CarCenterDataBaseImplement.csproj
+++ b/CarCenter/CarCenterDataBaseImplement/CarCenterDataBaseImplement.csproj
@@ -6,13 +6,13 @@
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="7.0.5" />
+  </ItemGroup>
+
   <ItemGroup>
     <ProjectReference Include="..\CarCenterContracts\CarCenterContracts.csproj" />
     <ProjectReference Include="..\CarCenterDataModels\CarCenterDataModels.csproj" />
   </ItemGroup>
 
-  <ItemGroup>
-    <Folder Include="Implements\" />
-  </ItemGroup>
-
 </Project>
diff --git a/CarCenter/CarCenterDataBaseImplement/Implements/EmployeeStorage.cs b/CarCenter/CarCenterDataBaseImplement/Implements/EmployeeStorage.cs
new file mode 100644
index 0000000..023bd85
--- /dev/null
+++ b/CarCenter/CarCenterDataBaseImplement/Implements/EmployeeStorage.cs
@@ -0,0 +1,165 @@
+using CarCenterContracts.BindingModels;
+using CarCenterContracts.SearchModels;
+using CarCenterContracts.StoragesContracts;
+using CarCenterContracts.ViewModels;
+using CarCenterDataBaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace CarCenterDataBaseImplement.Implemets
+{
+    public class EmployeeStorage : IEmployeeStorage
+    {
+        public EmployeeViewModel? Delete(EmployeeBindingModel model)
+        {
+            using var context = new CarCenterDataBase();
+
+            var element = context.Employees
+                .Include(x => x.Sales)
+                .FirstOrDefault(rec => rec.Id == model.Id);
+
+            if (element != null)
+            {
+                context.Employees.Remove(element);
+                context.SaveChanges();
+
+                return element.GetViewModel;
+            }
+
+            return null;
+        }
+
+        public EmployeeViewModel? GetElement(EmployeeSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.EmployeeFIO) && !model.Id.HasValue)
+            {
+                return null;
+            }
+
+            using var context = new CarCenterDataBase();
+
+            return context.Employees
+                .Include(x => x.Sales)
+                .ThenInclude(x => x.Sale)
+                .ThenInclude(x => x.PreSaleWorkSale)
+                .ThenInclude(x => x.PreSaleWork)
+                .Include(x => x.Inspection)
+                .Include(x => x.Manager)
+                .FirstOrDefault(x => (!string.IsNullOrEmpty(model.EmployeeFIO) && x.EmployeeFIO == model.EmployeeFIO) || (model.Id.HasValue && x.Id == model.Id))?
+                .GetViewModel;
+        }
+
+        public List<EmployeeViewModel> GetFilteredList(EmployeeSearchModel model)
+        {
+            if (!model.DateFrom.HasValue && !model.DateTo.HasValue && !model.ManagerId.HasValue)
+            {
+                return new();
+            }
+            using var context = new CarCenterDataBase();
+
+            if (model.DateFrom.HasValue)
+            {
+                return context.Employees
+                        .Include(x => x.Sales)
+                        .ThenInclude(x => x.Sale)
+                        .ThenInclude(x => x.PreSaleWorkSale)
+                        .ThenInclude(x => x.PreSaleWork)
+                        .Include(x => x.Inspection)
+                        .Include(x => x.Manager)
+                        .Where(x => x.Specialization >= model.DateFrom && x.Specialization <= model.DateTo && x.ManagerId == model.ManagerId)
+                        .Select(x => x.GetViewModel)
+                        .ToList();
+            }
+            else if (model.ManagerId.HasValue)
+                return context.Employees
+                    .Include(x => x.Sales)
+                    .ThenInclude(x => x.Sale)
+                    .ThenInclude(x => x.PreSaleWorkSale)
+                    .ThenInclude(x => x.PreSaleWork)
+                    .Include(x => x.Inspection)
+                    .Include(x => x.Manager)
+                    .Where(x => x.ManagerId == model.ManagerId)
+                    .ToList()
+                    .Select(x => x.GetViewModel)
+                    .ToList();
+
+            return context.Employees
+                .Include(x => x.Sales)
+                .ThenInclude(x => x.Sale)
+                .ThenInclude(x => x.PreSaleWorkSale)
+                .ThenInclude(x => x.PreSaleWork)
+                .Include(x => x.Inspection)
+                .Include(x => x.Manager)
+                .Where(x => x.EmployeeFIO.Contains(model.EmployeeFIO))
+                .ToList()
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public List<EmployeeViewModel> GetFullList()
+        {
+            using var context = new CarCenterDataBase();
+
+            return context.Employees
+                .Include(x => x.Sales)
+                .ThenInclude(x => x.Sale)
+                .ThenInclude(x => x.PreSaleWorkSale)
+                .ThenInclude(x => x.PreSaleWork)
+                .Include(x => x.Inspection)
+                .Include(x => x.Manager)
+                .ToList()
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public EmployeeViewModel? Insert(EmployeeBindingModel model)
+        {
+            using var context = new CarCenterDataBase();
+            var newEmployee = Employee.Create(context,model);
+
+            if (newEmployee == null)
+            {
+                return null;
+            }
+
+            context.Employees.Add(newEmployee);
+            context.SaveChanges();
+
+            return context.Employees
+                .Include(x => x.Sales)
+                .ThenInclude(x => x.Sale)
+                .ThenInclude(x => x.PreSaleWorkSale)
+                .ThenInclude(x => x.PreSaleWork)
+                .Include(x => x.Inspection)
+                .Include(x => x.Manager)
+                .FirstOrDefault(x => x.Id == newEmployee.Id)
+                ?.GetViewModel;
+        }
+    
+
+        public EmployeeViewModel? Update(EmployeeBindingModel model)
+        {
+            using var context = new CarCenterDataBase();
+            using var transaction = context.Database.BeginTransaction();
+            try
+            {
+                var elem = context.Employees.FirstOrDefault(rec => rec.Id == model.Id);
+                if (elem == null)
+                {
+                    return null;
+                }
+                elem.Update(model);
+                context.SaveChanges();
+                if (model.EmployeeSales != null)
+                    elem.UpdateSales(context, model);
+                transaction.Commit();
+                return elem.GetViewModel;
+            }
+            catch
+            {
+                transaction.Rollback();
+                throw;
+            }
+            
+        }
+    }
+}
diff --git a/CarCenter/CarCenterDataBaseImplement/Implements/ManagerStorage.cs b/CarCenter/CarCenterDataBaseImplement/Implements/ManagerStorage.cs
new file mode 100644
index 0000000..6d09992
--- /dev/null
+++ b/CarCenter/CarCenterDataBaseImplement/Implements/ManagerStorage.cs
@@ -0,0 +1,122 @@
+using CarCenterContracts.BindingModels;
+using CarCenterContracts.SearchModels;
+using CarCenterContracts.StoragesContracts;
+using CarCenterContracts.ViewModels;
+using CarCenterDataBaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace CarCenterDataBaseImplement.Implemets
+{
+    public class ManagerStorage : IManagerStorage
+    {
+        public ManagerViewModel? Delete(ManagerBindingModel model)
+        {
+            using var context = new CarCenterDataBase();
+
+            var element = context.Managers.FirstOrDefault(rec => rec.Id == model.Id);
+
+            if (element != null)
+            {
+                context.Managers.Remove(element);
+                context.SaveChanges();
+
+                return element.GetViewModel;
+            }
+
+            return null;
+        }
+
+        public ManagerViewModel? GetElement(ManagerSearchModel model)
+        {
+            using var context = new CarCenterDataBase();
+            
+            if (model.Id.HasValue)
+                return context.Managers
+                    .Include(x => x.PreSaleWorks)
+                    .Include(x => x.Sales)
+                    .Include(x => x.Employees)
+                    .FirstOrDefault(x => x.Id == model.Id)?
+                    .GetViewModel;
+            
+            if (!string.IsNullOrEmpty(model.ManagerEmail) && !string.IsNullOrEmpty(model.ManagerPassword))
+                return context.Managers
+                    .Include(x => x.PreSaleWorks)
+                    .Include(x => x.Sales)
+                    .Include(x => x.Employees)
+                    .FirstOrDefault(x => x.ManagerEmail.Equals(model.ManagerEmail) && x.ManagerPassword.Equals(model.ManagerPassword))?
+                    .GetViewModel;
+            
+            if (!string.IsNullOrEmpty(model.ManagerEmail))
+                return context.Managers
+                    .Include(x => x.PreSaleWorks)
+                    .Include(x => x.Sales)
+                    .Include(x => x.Employees)
+                    .FirstOrDefault(x => x.ManagerEmail.Equals(model.ManagerEmail))?
+                    .GetViewModel;
+            
+            return null;
+        }
+
+        public List<ManagerViewModel> GetFilteredList(ManagerSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ManagerFIO))
+            {
+                return new();
+            }
+
+            using var context = new CarCenterDataBase();
+
+            return context.Managers
+                .Include(x => x.PreSaleWorks)
+                .Include(x => x.Sales)
+                .Include(x => x.Employees)
+                .Where(x => x.ManagerLogin.Contains(model.ManagerLogin) && x.ManagerPassword == model.ManagerPassword)
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public List<ManagerViewModel> GetFullList()
+        {
+            using var context = new CarCenterDataBase();
+
+            return context.Managers
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public ManagerViewModel? Insert(ManagerBindingModel model)
+        {
+            var newManager = Manager.Create(model);
+
+            if (newManager == null)
+            {
+                return null;
+            }
+
+            using var context = new CarCenterDataBase();
+
+            context.Managers.Add(newManager);
+            context.SaveChanges();
+
+            return newManager.GetViewModel;
+        }
+
+        public ManagerViewModel? Update(ManagerBindingModel model)
+        {
+            using var context = new CarCenterDataBase();
+
+            var Manager = context.Managers
+                .FirstOrDefault(x => x.Id == model.Id);
+
+            if (Manager == null)
+            {
+                return null;
+            }
+
+            Manager.Update(model);
+            context.SaveChanges();
+
+            return Manager.GetViewModel;
+        }
+    }
+}
diff --git a/CarCenter/CarCenterDataBaseImplement/Implements/PreSaleWorkStorage.cs b/CarCenter/CarCenterDataBaseImplement/Implements/PreSaleWorkStorage.cs
new file mode 100644
index 0000000..ac8beea
--- /dev/null
+++ b/CarCenter/CarCenterDataBaseImplement/Implements/PreSaleWorkStorage.cs
@@ -0,0 +1,142 @@
+using CarCenterContracts.BindingModels;
+using CarCenterContracts.SearchModels;
+using CarCenterContracts.StoragesContracts;
+using CarCenterContracts.ViewModels;
+using CarCenterDataBaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace CarCenterDataBaseImplement.Implemets
+{
+    public class PreSaleWorkStorage : IPreSaleWorkStorage
+    {
+        public PreSaleWorkViewModel? Delete(PreSaleWorkBindingModel model)
+        {
+            using var context = new CarCenterDataBase();
+
+            var element = context.PreSaleWorks
+                .Include(x => x.Sales)
+                .FirstOrDefault(rec => rec.Id == model.Id);
+
+            if (element != null)
+            {
+                context.PreSaleWorks.Remove(element);
+                context.SaveChanges();
+
+                return element.GetViewModel;
+            }
+
+            return null;
+        }
+
+        public PreSaleWorkViewModel? GetElement(PreSaleWorkSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.PreSaleWorkType) && !model.Id.HasValue)
+            {
+                return null;
+            }
+
+            using var context = new CarCenterDataBase();
+
+            return context.PreSaleWorks
+                .Include(x => x.Sales)
+                .ThenInclude(x => x.Sale)
+                .ThenInclude(x => x.EmployeeSales)
+                .ThenInclude(x => x.Employee)
+                .Include(x => x.Equipments)
+                .Include(x => x.Manager)
+                .FirstOrDefault(x => (!string.IsNullOrEmpty(model.PreSaleWorkType) && x.PreSaleWorkType == model.PreSaleWorkType) || (model.Id.HasValue && x.Id == model.Id))?
+                .GetViewModel;
+        }
+
+        public List<PreSaleWorkViewModel> GetFilteredList(PreSaleWorkSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.PreSaleWorkType) && !model.ManagerId.HasValue)
+            {
+                return new();
+            }
+
+            using var context = new CarCenterDataBase();
+
+            if (model.ManagerId.HasValue)
+            {
+                return context.PreSaleWorks
+                .Include(x => x.Sales)
+                .ThenInclude(x => x.Sale)
+                .ThenInclude(x => x.EmployeeSales)
+                .ThenInclude(x => x.Employee)
+                .Include(x => x.Equipments)
+                .Include(x => x.Manager)
+                    .Where(x => x.ManagerId == model.ManagerId)
+                    .ToList()
+                    .Select(x => x.GetViewModel)
+                    .ToList();
+            }
+
+            return context.PreSaleWorks
+                .Include(x => x.Sales)
+                .ThenInclude(x => x.Sale)
+                .ThenInclude(x => x.EmployeeSales)
+                .ThenInclude(x => x.Employee)
+                .Include(x => x.Equipments)
+                .Include(x => x.Manager)
+                .Where(x => x.PreSaleWorkType.Contains(model.PreSaleWorkType))
+                .ToList()
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public List<PreSaleWorkViewModel> GetFullList()
+        {
+            using var context = new CarCenterDataBase();
+            return context.PreSaleWorks
+                .Include(x => x.Sales)
+                .ThenInclude(x => x.Sale)
+                .ThenInclude(x => x.EmployeeSales)
+                .ThenInclude(x => x.Employee)
+                .Include(x => x.Equipments)
+                .Include(x => x.Manager)
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public PreSaleWorkViewModel? Insert(PreSaleWorkBindingModel model)
+        {
+            using var context = new CarCenterDataBase();
+            var newPreSaleWork = PreSaleWork.Create(context,model);
+
+            if (newPreSaleWork == null)
+            {
+                return null;
+            }
+            
+            context.PreSaleWorks.Add(newPreSaleWork);
+            context.SaveChanges();
+            return newPreSaleWork.GetViewModel;
+        }
+
+        public PreSaleWorkViewModel? Update(PreSaleWorkBindingModel model)
+        {
+            using var context = new CarCenterDataBase();
+            using var transaction = context.Database.BeginTransaction();
+            try
+            {
+                var elem = context.PreSaleWorks.FirstOrDefault(rec => rec.Id == model.Id);
+                if (elem == null)
+                {
+                    return null;
+                }
+                elem.Update(model);
+                context.SaveChanges();
+                if (model.PreSaleWorkSales != null)
+                    elem.UpdateSales(context, model);
+                transaction.Commit();
+                return elem.GetViewModel;
+            }
+            catch
+            {
+                transaction.Rollback();
+                throw;
+            }
+        }
+    }
+}
diff --git a/CarCenter/CarCenterDataBaseImplement/Implements/SaleStorage.cs b/CarCenter/CarCenterDataBaseImplement/Implements/SaleStorage.cs
new file mode 100644
index 0000000..405da76
--- /dev/null
+++ b/CarCenter/CarCenterDataBaseImplement/Implements/SaleStorage.cs
@@ -0,0 +1,129 @@
+using CarCenterContracts.BindingModels;
+using CarCenterContracts.SearchModels;
+using CarCenterContracts.StoragesContracts;
+using CarCenterContracts.ViewModels;
+using CarCenterDataBaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace CarCenterDataBaseImplement.Implemets
+{
+    public class SaleStorage : ISaleStorage
+    {
+        public SaleViewModel? Delete(SaleBindingModel model)
+        {
+            using var context = new CarCenterDataBase();
+
+            var element = context.Sales.FirstOrDefault(rec => rec.Id == model.Id);
+
+            if (element != null)
+            {
+                context.Sales.Remove(element);
+                context.SaveChanges();
+
+                return element.GetViewModel;
+            }
+
+            return null;
+        }
+
+        public SaleViewModel? GetElement(SaleSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.SaleDate) && !model.Id.HasValue)
+            {
+                return null;
+            }
+
+            using var context = new CarCenterDataBase();
+
+            return context.Sales
+                .Include(x => x.EmployeeSales)
+                .ThenInclude(x => x.Employee)
+                .Include(x => x.PreSaleWorkSale)
+                .ThenInclude(x => x.PreSaleWork)
+                .Include(x => x.Manager)
+                .FirstOrDefault(x => (!string.IsNullOrEmpty(model.SaleDate) && x.SaleDate == model.SaleDate) || (model.Id.HasValue && x.Id == model.Id))?
+                .GetViewModel;
+        }
+
+        public List<SaleViewModel> GetFilteredList(SaleSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.SaleDate) && !model.ManagerId.HasValue)
+            {
+                return new();
+            }
+
+            using var context = new CarCenterDataBase();
+
+            if (model.ManagerId.HasValue)
+            {
+                return context.Sales
+                .Include(x => x.EmployeeSales)
+                .ThenInclude(x => x.Employee)
+                .Include(x => x.PreSaleWorkSale)
+                .ThenInclude(x => x.PreSaleWork)
+                .Include(x => x.Manager)
+                    .Where(x => x.ManagerId == model.ManagerId)
+                    .Select(x => x.GetViewModel)
+                    .ToList();
+            }
+
+            return context.Sales
+                .Include(x => x.EmployeeSales)
+                .ThenInclude(x => x.Employee)
+                .Include(x => x.PreSaleWorkSale)
+                .ThenInclude(x => x.PreSaleWork)
+                .Include(x => x.Manager)
+                .Where(x => x.SaleDate.Contains(model.SaleDate))
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public List<SaleViewModel> GetFullList()
+        {
+            using var context = new CarCenterDataBase();
+
+            return context.Sales
+                .Include(x => x.EmployeeSales)
+                .ThenInclude(x => x.Employee)
+                .Include(x => x.PreSaleWorkSale)
+                .ThenInclude(x => x.PreSaleWork)
+                .Include(x => x.Manager)
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+
+        public SaleViewModel? Insert(SaleBindingModel model)
+        {
+            using var context = new CarCenterDataBase();
+
+            var newSale = Sale.Create(model);
+
+            if (newSale == null)
+            {
+                return null;
+            }
+
+            context.Sales.Add(newSale);
+            context.SaveChanges();
+
+            return newSale.GetViewModel;
+        }
+
+        public SaleViewModel? Update(SaleBindingModel model)
+        {
+            using var context = new CarCenterDataBase();
+
+            var Sale = context.Sales.FirstOrDefault(x => x.Id == model.Id);
+
+            if (Sale == null)
+            {
+                return null;
+            }
+
+            Sale.Update(model);
+            context.SaveChanges();
+
+            return Sale.GetViewModel;
+        }
+    }
+}
diff --git a/CarCenter/CarCenterDataBaseImplement/Models/Employee.cs b/CarCenter/CarCenterDataBaseImplement/Models/Employee.cs
new file mode 100644
index 0000000..2bb2bd6
--- /dev/null
+++ b/CarCenter/CarCenterDataBaseImplement/Models/Employee.cs
@@ -0,0 +1,107 @@
+using CarCenterContracts.BindingModels;
+using CarCenterContracts.ViewModels;
+using CarCenterDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.Text.Json.Serialization;
+
+namespace CarCenterDataBaseImplement.Models
+{
+    public class Employee : IEmployeeModel
+    {
+        [Required]
+        public string EmployeeFIO { get; set; } = string.Empty;
+        [Required]
+        public string Specialization { get; set; } = string.Empty;
+
+        public int ManagerId { get; private set; }
+
+        public int Id { get; private set; }
+
+        public virtual Manager Manager { get; set; }
+
+        private Dictionary<int, ISaleModel> _employeeSale = null;
+
+        [NotMapped]
+        public Dictionary<int, ISaleModel> EmployeeSale
+        {
+            get
+            {
+                if (_employeeSale == null)
+                {
+                    using var context = new CarCenterDataBase();
+                    _employeeSale = Sale
+                        .ToDictionary(x => x.SaleId, x => (context.Sale
+                        .FirstOrDefault(y => y.Id == x.SaleId)! as ISaleModel));
+                }
+                return _employeeSale;
+            }
+        }
+
+        [ForeignKey("EmployeeId")]
+        public virtual List<Inspection> Inspections { get; set; } = new();
+
+        [ForeignKey("EmployeeId")]
+        public virtual List<EmployeeSale> Sale { get; set; } = new();
+
+        public static Employee Create(CarCenterDataBase context, EmployeeBindingModel model)
+        {
+            return new Employee()
+            {
+                Id = model.Id,
+                EmployeeFIO = model.EmployeeFIO,
+                Specialization = model.Specialization,
+                ManagerId=model.ManagerId,
+                Sale = model.EmployeeSale.Select(x => new EmployeeSale
+                {
+                    Sale = context.Sale.First(y => y.Id == x.Key),
+                }).ToList()
+            };
+        }
+
+        public void Update(EmployeeBindingModel model)
+        {
+            EmployeeFIO = model.EmployeeFIO;
+            Specialization = model.Specialization;
+            ManagerId = model.ManagerId;
+        }
+
+        public EmployeeViewModel GetViewModel => new()
+        {
+            Id = Id,
+            EmployeeFIO = EmployeeFIO,
+            Specialization = Specialization,
+            ManagerId = ManagerId,
+            EmployeeSale = EmployeeSale
+        };
+
+        public void UpdateSale(CarCenterDataBase context, EmployeeBindingModel model)
+        {
+            var EmployeeSale = context.EmployeeSale.Where(rec => rec.EmployeeId == model.Id).ToList();
+
+            if (EmployeeSale != null && EmployeeSale.Any())
+            {
+                context.EmployeeSale.RemoveRange(EmployeeSale.Where(rec => !model.EmployeeSale.ContainsKey(rec.SaleId)));
+                context.SaveChanges();
+
+                foreach (var updateSale in EmployeeSale)
+                {
+                    model.EmployeeSale.Remove(updateSale.SaleId);
+                }
+                context.SaveChanges();
+            }
+
+            var Employee = context.Employees.First(x => x.Id == Id);
+            foreach (var cm in model.EmployeeSale)
+            {
+                context.EmployeeSale.Add(new EmployeeSale
+                {
+                    Employee = Employee,
+                    Sale = context.Sale.First(x => x.Id == cm.Key),
+                });
+                context.SaveChanges();
+            }
+            _employeeSale = null;
+        }
+    }
+}
diff --git a/CarCenter/CarCenterDataBaseImplement/Models/EmployeeSale.cs b/CarCenter/CarCenterDataBaseImplement/Models/EmployeeSale.cs
new file mode 100644
index 0000000..0fde578
--- /dev/null
+++ b/CarCenter/CarCenterDataBaseImplement/Models/EmployeeSale.cs
@@ -0,0 +1,18 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace CarCenterDataBaseImplement.Models
+{
+    public class EmployeeSale
+    {
+        public int Id { get; set; }
+
+        [Required]
+        public int SaleId { get; set; }
+
+        [Required]
+        public int EmployeeId { get; set; }
+
+        public virtual Employee Employee { get; set; } = new();
+        public virtual Sale Sale { get; set; } = new();
+    }
+}
diff --git a/CarCenter/CarCenterDataBaseImplement/Models/Manager.cs b/CarCenter/CarCenterDataBaseImplement/Models/Manager.cs
new file mode 100644
index 0000000..1705725
--- /dev/null
+++ b/CarCenter/CarCenterDataBaseImplement/Models/Manager.cs
@@ -0,0 +1,81 @@
+using CarCenterContracts.BindingModels;
+using CarCenterContracts.ViewModels;
+using CarCenterDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace CarCenterDataBaseImplement.Models
+{
+    public class Manager : IManagerModel
+    {
+        [Required]
+        public string ManagerFIO { get; set; } = string.Empty;
+        [Required]
+        public string ManagerPassword { get; set; } = string.Empty;
+        [Required]
+        public string ManagerLogin { get; set; } = string.Empty;
+        [Required]
+        public string ManagerEmail { get; set; } = string.Empty;
+        [Required]
+        public string ManagerNumber { get; set; } = string.Empty;
+
+        public int Id { get; private set; }
+
+        [ForeignKey("ManagerId")]
+        public virtual List<Employee> Employees { get; set; } = new();
+        [ForeignKey("ManagerId")]
+        public virtual List<PreSaleWork> PreSaleWorks { get; set; } = new();
+        [ForeignKey("ManagerId")]
+        public virtual List<Sale> Sale { get; set; } = new();
+
+        public static Manager? Create(ManagerBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Manager()
+            {
+                Id = model.Id,
+                ManagerFIO = model.ManagerFIO,
+                ManagerEmail = model.ManagerEmail,
+                ManagerPassword = model.ManagerPassword,
+                ManagerLogin = model.ManagerLogin,
+                ManagerNumber = model.ManagerNumber
+            };
+        }
+        public static Manager Create(ManagerViewModel model)
+        {
+            return new Manager
+            {
+                Id = model.Id,
+                ManagerFIO = model.ManagerFIO,
+                ManagerEmail = model.ManagerEmail,
+                ManagerPassword = model.ManagerPassword,
+                ManagerLogin= model.ManagerLogin,
+                ManagerNumber= model.ManagerNumber
+            };
+        }
+        public void Update(ManagerBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            ManagerFIO = model.ManagerFIO;
+            ManagerEmail = model.ManagerEmail;
+            ManagerPassword = model.ManagerPassword;
+            ManagerLogin = model.ManagerLogin;
+            ManagerNumber = model.ManagerNumber;
+        }
+        public ManagerViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ManagerFIO = ManagerFIO,
+            ManagerEmail = ManagerEmail,
+            ManagerPassword = ManagerPassword,
+            ManagerNumber = ManagerNumber,
+            ManagerLogin = ManagerLogin
+        };
+    }
+}
diff --git a/CarCenter/CarCenterDataBaseImplement/Models/PreSaleWork.cs b/CarCenter/CarCenterDataBaseImplement/Models/PreSaleWork.cs
new file mode 100644
index 0000000..6ae9b40
--- /dev/null
+++ b/CarCenter/CarCenterDataBaseImplement/Models/PreSaleWork.cs
@@ -0,0 +1,109 @@
+using CarCenterContracts.BindingModels;
+using CarCenterContracts.ViewModels;
+using CarCenterDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.Text.Json.Serialization;
+
+namespace CarCenterDataBaseImplement.Models
+{
+    public class PreSaleWork : IPreSaleWorkModel
+    {
+        [Required]
+        public string PreSaleWorkType { get; set; } = string.Empty;
+
+        [Required]
+        public double PreSaleWorkPrice { get; set; }
+
+        public int ManagerId { get; private set; }
+
+        public int Id { get; private set; }
+
+        public virtual Manager Manager { get; set; }
+
+        private Dictionary<int, ISaleModel> _PreSaleWorkSale = null;
+
+        [NotMapped]
+        public Dictionary<int, ISaleModel> PreSaleWorkSale
+        {
+            get
+            {
+                if (_PreSaleWorkSale == null)
+                {
+                    using var context = new CarCenterDataBase();
+                    _PreSaleWorkSale = Sale
+                        .ToDictionary(x => x.SaleId, x => (context.Sale
+                        .FirstOrDefault(y => y.Id == x.SaleId)! as ISaleModel));
+                }
+                return _PreSaleWorkSale;
+            }
+        }
+
+        [ForeignKey("PreSaleWorkId")]
+        public virtual List<Car> Cars { get; set; } = new();
+
+        [ForeignKey("PreSaleWorkId")]
+        public virtual List<PreSaleWorkSale> Sale { get; set; } = new();
+
+        public static PreSaleWork Create(CarCenterDataBase context, PreSaleWorkBindingModel model)
+        {
+            return new PreSaleWork()
+            {
+                Id = model.Id,
+                PreSaleWorkType = model.PreSaleWorkType,
+                PreSaleWorkPrice = model.PreSaleWorkPrice,
+                ManagerId = model.ManagerId,
+                Sale = model.PreSaleWorkSale.Select(x => new PreSaleWorkSale
+                {
+                    Sale = context.Sale.First(y => y.Id == x.Key),
+                }).ToList()
+            };
+        }
+
+        public void Update(PreSaleWorkBindingModel model)
+        {
+            PreSaleWorkType = model.PreSaleWorkType;
+            PreSaleWorkPrice = model.PreSaleWorkPrice;
+            ManagerId = model.ManagerId;
+        }
+
+        public PreSaleWorkViewModel GetViewModel => new()
+        {
+            Id = Id,
+            PreSaleWorkType = PreSaleWorkType,
+            PreSaleWorkPrice = PreSaleWorkPrice,
+            ManagerId=ManagerId,
+            PreSaleWorkSale = PreSaleWorkSale
+        };
+
+        public void UpdateSale(CarCenterDataBase context, PreSaleWorkBindingModel model)
+        {
+            var PreSaleWorkSale = context.PreSaleWorkSale.Where(rec => rec.PreSaleWorkId == model.Id).ToList();
+
+            if (PreSaleWorkSale != null && PreSaleWorkSale.Any())
+            {
+                context.PreSaleWorkSale.RemoveRange(PreSaleWorkSale.Where(rec => !model.PreSaleWorkSale.ContainsKey(rec.SaleId)));
+                context.SaveChanges();
+
+                foreach (var updateSale in PreSaleWorkSale)
+                {
+                    model.PreSaleWorkSale.Remove(updateSale.SaleId);
+                }
+                context.SaveChanges();
+            }
+
+            var PreSaleWork = context.PreSaleWorks.First(x => x.Id == Id);
+
+            foreach (var cm in model.PreSaleWorkSale)
+            {
+                context.PreSaleWorkSale.Add(new PreSaleWorkSale
+                {
+                    PreSaleWork = PreSaleWork,
+                    Sale = context.Sale.First(x => x.Id == cm.Key)
+                });
+                context.SaveChanges();
+            }
+            _PreSaleWorkSale = null;
+        }
+    }
+}
diff --git a/CarCenter/CarCenterDataBaseImplement/Models/PreSaleWorkSale.cs b/CarCenter/CarCenterDataBaseImplement/Models/PreSaleWorkSale.cs
new file mode 100644
index 0000000..a0e87bb
--- /dev/null
+++ b/CarCenter/CarCenterDataBaseImplement/Models/PreSaleWorkSale.cs
@@ -0,0 +1,18 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace CarCenterDataBaseImplement.Models
+{
+    public class PreSaleWorkSale
+    {
+        public int Id { get; set; }
+
+        [Required]
+        public int SaleId { get; set; }
+
+        [Required]
+        public int PreSaleWorkId { get; set; }
+
+        public virtual PreSaleWork PreSaleWork { get; set; } = new();
+        public virtual Sale Sale { get; set; } = new();
+    }
+}
diff --git a/CarCenter/CarCenterDataBaseImplement/Models/Sale.cs b/CarCenter/CarCenterDataBaseImplement/Models/Sale.cs
new file mode 100644
index 0000000..6ef25df
--- /dev/null
+++ b/CarCenter/CarCenterDataBaseImplement/Models/Sale.cs
@@ -0,0 +1,71 @@
+using CarCenterContracts.BindingModels;
+using CarCenterContracts.ViewModels;
+using CarCenterDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace CarCenterDataBaseImplement.Models
+{
+    public class Sale : ISaleModel
+    {
+        [Required]
+        public DateTime? SaleDate { get; set; } = DateTime.Now;
+        [Required]
+        public string SalePrice { get; set; } = string.Empty;
+
+        public int ManagerId { get; private set; }
+
+        public int Id { get; private set; }
+
+        public virtual Manager Manager { get; set; }
+
+        [ForeignKey("SaleId")]
+        public virtual List<PreSaleWorkSale> PreSaleWorkSale { get; set; } = new();
+
+
+        [ForeignKey("SaleId")]
+        public virtual List<EmployeeSale> EmployeeSale { get; set; } = new();
+
+        public static Sale? Create(SaleBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Sale()
+            {
+                Id = model.Id,
+                SaleDate = model.SaleDate,
+                SalePrice = model.SalePrice,
+                ManagerId = model.ManagerId,
+            };
+        }
+        public static Sale Create(SaleViewModel model)
+        {
+            return new Sale
+            {
+                Id = model.Id,
+                SaleDate = model.SaleDate,
+                SalePrice = model.SalePrice,
+                ManagerId=model.ManagerId,
+            };
+        }
+        public void Update(SaleBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            SaleDate = model.SaleDate;
+            SalePrice = model.SalePrice;
+            ManagerId = model.ManagerId;
+        }
+        public SaleViewModel GetViewModel => new()
+        {
+            Id = Id,
+            SaleDate = SaleDate,
+            SalePrice = SalePrice,
+            ManagerId=ManagerId
+        };
+    }
+}