diff --git a/MotorPlant/MotorPlant.sln b/MotorPlant/MotorPlant.sln
index b16b409..fcac901 100644
--- a/MotorPlant/MotorPlant.sln
+++ b/MotorPlant/MotorPlant.sln
@@ -15,6 +15,8 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "MotorPlantListImplement", "
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MotorPlantFileImplement", "MotorPlantFileImplement\MotorPlantFileImplement.csproj", "{7F4C8448-8678-4AA4-A922-BB10EFCEF9AF}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "MotorPlantDatabaseImplement", "MotorPlantDatabaseImplement\MotorPlantDatabaseImplement.csproj", "{635EFBA2-ECFB-45F0-B1BF-75D3DF9BD171}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -45,6 +47,10 @@ Global
 		{7F4C8448-8678-4AA4-A922-BB10EFCEF9AF}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{7F4C8448-8678-4AA4-A922-BB10EFCEF9AF}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{7F4C8448-8678-4AA4-A922-BB10EFCEF9AF}.Release|Any CPU.Build.0 = Release|Any CPU
+		{635EFBA2-ECFB-45F0-B1BF-75D3DF9BD171}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{635EFBA2-ECFB-45F0-B1BF-75D3DF9BD171}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{635EFBA2-ECFB-45F0-B1BF-75D3DF9BD171}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{635EFBA2-ECFB-45F0-B1BF-75D3DF9BD171}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
diff --git a/MotorPlant/MotorPlantDatabaseImplement/Component.cs b/MotorPlant/MotorPlantDatabaseImplement/Component.cs
new file mode 100644
index 0000000..2382ad7
--- /dev/null
+++ b/MotorPlant/MotorPlantDatabaseImplement/Component.cs
@@ -0,0 +1,57 @@
+using MotorPlantContracts.BindingModels;
+using MotorPlantContracts.ViewModels;
+using MotorPlantDataModels.Models;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.ComponentModel.DataAnnotations;
+
+namespace MotorPlantDatabaseImplement.Models
+{
+    public class Component : IComponentModel
+    {
+        public int Id { get; private set; }
+        [Required]
+        public string ComponentName { get; private set; } = string.Empty;
+        [Required]
+        public double Cost { get; set; }
+        [ForeignKey("ComponentId")]
+        public virtual List<EngineComponent> EngineComponents { get; set; } =
+       new();
+        public static Component? Create(ComponentBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Component()
+            {
+                Id = model.Id,
+                ComponentName = model.ComponentName,
+                Cost = model.Cost
+            };
+        }
+        public static Component Create(ComponentViewModel model)
+        {
+            return new Component
+            {
+                Id = model.Id,
+                ComponentName = model.ComponentName,
+                Cost = model.Cost
+            };
+        }
+        public void Update(ComponentBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            ComponentName = model.ComponentName;
+            Cost = model.Cost;
+        }
+        public ComponentViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ComponentName = ComponentName,
+            Cost = Cost
+        };
+    }
+}
diff --git a/MotorPlant/MotorPlantDatabaseImplement/ComponentStorage.cs b/MotorPlant/MotorPlantDatabaseImplement/ComponentStorage.cs
new file mode 100644
index 0000000..96c8d28
--- /dev/null
+++ b/MotorPlant/MotorPlantDatabaseImplement/ComponentStorage.cs
@@ -0,0 +1,84 @@
+using MotorPlantContracts.BindingModels;
+using MotorPlantContracts.SearchModels;
+using MotorPlantContracts.StoragesContracts;
+using MotorPlantContracts.ViewModels;
+using MotorPlantDatabaseImplement.Models;
+
+namespace MotorPlantDatabaseImplement.Implements
+{
+    public class ComponentStorage : IComponentStorage
+    {
+        public List<ComponentViewModel> GetFullList()
+        {
+            using var context = new MotorPlantDataBase();
+            return context.Components
+            .Select(x => x.GetViewModel)
+           .ToList();
+        }
+        public List<ComponentViewModel> GetFilteredList(ComponentSearchModel
+       model)
+        {
+            if (string.IsNullOrEmpty(model.ComponentName))
+            {
+                return new();
+            }
+            using var context = new MotorPlantDataBase();
+            return context.Components
+            .Where(x => x.ComponentName.Contains(model.ComponentName))
+           .Select(x => x.GetViewModel)
+           .ToList();
+        }
+        public ComponentViewModel? GetElement(ComponentSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ComponentName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new MotorPlantDataBase();
+            return context.Components
+            .FirstOrDefault(x =>
+           (!string.IsNullOrEmpty(model.ComponentName) && x.ComponentName ==
+           model.ComponentName) ||
+            (model.Id.HasValue && x.Id == model.Id))
+            ?.GetViewModel;
+        }
+        public ComponentViewModel? Insert(ComponentBindingModel model)
+        {
+            var newComponent = Component.Create(model);
+            if (newComponent == null)
+            {
+                return null;
+            }
+            using var context = new MotorPlantDataBase();
+            context.Components.Add(newComponent);
+            context.SaveChanges();
+            return newComponent.GetViewModel;
+        }
+        public ComponentViewModel? Update(ComponentBindingModel model)
+        {
+            using var context = new MotorPlantDataBase();
+            var component = context.Components.FirstOrDefault(x => x.Id ==
+           model.Id);
+            if (component == null)
+            {
+                return null;
+            }
+            component.Update(model);
+            context.SaveChanges();
+            return component.GetViewModel;
+        }
+        public ComponentViewModel? Delete(ComponentBindingModel model)
+        {
+            using var context = new MotorPlantDataBase();
+            var element = context.Components.FirstOrDefault(rec => rec.Id ==
+           model.Id);
+            if (element != null)
+            {
+                context.Components.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}
diff --git a/MotorPlant/MotorPlantDatabaseImplement/Engine.cs b/MotorPlant/MotorPlantDatabaseImplement/Engine.cs
new file mode 100644
index 0000000..8a51aae
--- /dev/null
+++ b/MotorPlant/MotorPlantDatabaseImplement/Engine.cs
@@ -0,0 +1,97 @@
+using MotorPlantContracts.BindingModels;
+using MotorPlantContracts.ViewModels;
+using MotorPlantDataModels.Models;
+using System.ComponentModel.DataAnnotations.Schema;
+using System.ComponentModel.DataAnnotations;
+
+namespace MotorPlantDatabaseImplement.Models
+{
+    public class Engine : IEngineModel
+    {
+        public int Id { get; set; }
+        [Required]
+        public string EngineName { get; set; } = string.Empty;
+        [Required]
+        public double Price { get; set; }
+        private Dictionary<int, (IComponentModel, int)>? _EngineComponents =
+       null;
+        [NotMapped]
+        public Dictionary<int, (IComponentModel, int)> EngineComponents
+        {
+            get
+            {
+                if (_EngineComponents == null)
+                {
+                    _EngineComponents = Components
+                    .ToDictionary(recPC => recPC.ComponentId, recPC =>
+                   (recPC.Component as IComponentModel, recPC.Count));
+                }
+                return _EngineComponents;
+            }
+        }
+        [ForeignKey("EngineId")]
+        public virtual List<EngineComponent> Components { get; set; } = new();
+        [ForeignKey("EngineId")]
+        public virtual List<Order> Orders { get; set; } = new();
+        public static Engine Create(MotorPlantDataBase context,
+        EngineBindingModel model)
+        {
+            return new Engine()
+            {
+                Id = model.Id,
+                EngineName = model.EngineName,
+                Price = model.Price,
+                Components = model.EngineComponents.Select(x => new
+               EngineComponent
+                {
+                    Component = context.Components.First(y => y.Id == x.Key),
+                    Count = x.Value.Item2
+                }).ToList()
+            };
+        }
+        public void Update(EngineBindingModel model)
+        {
+            EngineName = model.EngineName;
+            Price = model.Price;
+        }
+        public EngineViewModel GetViewModel => new()
+        {
+            Id = Id,
+            EngineName = EngineName,
+            Price = Price,
+            EngineComponents = EngineComponents
+        };
+        public void UpdateComponents(MotorPlantDataBase context,
+       EngineBindingModel model)
+        {
+            var EngineComponents = context.EngineComponents.Where(rec =>
+           rec.EngineId == model.Id).ToList();
+            if (EngineComponents != null && EngineComponents.Count > 0)
+            {
+                context.EngineComponents.RemoveRange(EngineComponents.Where(rec
+=> !model.EngineComponents.ContainsKey(rec.ComponentId)));
+
+                context.SaveChanges();
+                foreach (var updateComponent in EngineComponents)
+                {
+                    updateComponent.Count =
+                   model.EngineComponents[updateComponent.ComponentId].Item2;
+                    model.EngineComponents.Remove(updateComponent.ComponentId);
+                }
+                context.SaveChanges();
+            }
+            var Engine = context.Engines.First(x => x.Id == Id);
+            foreach (var pc in model.EngineComponents)
+            {
+                context.EngineComponents.Add(new EngineComponent
+                {
+                    Engine = Engine,
+                    Component = context.Components.First(x => x.Id == pc.Key),
+                    Count = pc.Value.Item2
+                });
+                context.SaveChanges();
+            }
+            _EngineComponents = null;
+        }
+    }
+}
diff --git a/MotorPlant/MotorPlantDatabaseImplement/EngineComponent.cs b/MotorPlant/MotorPlantDatabaseImplement/EngineComponent.cs
new file mode 100644
index 0000000..694a36b
--- /dev/null
+++ b/MotorPlant/MotorPlantDatabaseImplement/EngineComponent.cs
@@ -0,0 +1,17 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace MotorPlantDatabaseImplement.Models
+{
+    public class EngineComponent
+    {
+        public int Id { get; set; }
+        [Required]
+        public int EngineId { get; set; }
+        [Required]
+        public int ComponentId { get; set; }
+        [Required]
+        public int Count { get; set; }
+        public virtual Component Component { get; set; } = new();
+        public virtual Engine Engine { get; set; } = new();
+    }
+}
diff --git a/MotorPlant/MotorPlantDatabaseImplement/EngineStorage.cs b/MotorPlant/MotorPlantDatabaseImplement/EngineStorage.cs
new file mode 100644
index 0000000..04eb2f8
--- /dev/null
+++ b/MotorPlant/MotorPlantDatabaseImplement/EngineStorage.cs
@@ -0,0 +1,104 @@
+using MotorPlantContracts.BindingModels;
+using MotorPlantContracts.SearchModels;
+using MotorPlantContracts.StoragesContracts;
+using MotorPlantContracts.ViewModels;
+using MotorPlantDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace MotorPlantDatabaseImplement.Implements
+{
+    public class EngineStorage : IEngineStorage
+    {
+        public List<EngineViewModel> GetFullList()
+        {
+            using var context = new MotorPlantDataBase();
+            return context.Engines
+             .Include(x => x.Components)
+            .ThenInclude(x => x.Component)
+            .ToList()
+            .Select(x => x.GetViewModel)
+            .ToList();
+        }
+        public List<EngineViewModel> GetFilteredList(EngineSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.EngineName))
+            {
+                return new();
+            }
+            using var context = new MotorPlantDataBase();
+            return context.Engines.Include(x => x.Components)
+            .ThenInclude(x => x.Component)
+            .Where(x => x.EngineName.Contains(model.EngineName))
+            .ToList()
+            .Select(x => x.GetViewModel)
+            .ToList();
+        }
+        public EngineViewModel? GetElement(EngineSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.EngineName) &&
+            !model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new MotorPlantDataBase();
+            return context.Engines
+             .Include(x => x.Components)
+             .ThenInclude(x => x.Component)
+             .FirstOrDefault(x => (!string.IsNullOrEmpty(model.EngineName) &&
+            x.EngineName == model.EngineName) ||
+            (model.Id.HasValue && x.Id ==
+            model.Id))
+            ?.GetViewModel;
+        }
+        public EngineViewModel? Insert(EngineBindingModel model)
+        {
+            using var context = new MotorPlantDataBase();
+            var newEngine = Engine.Create(context, model);
+            if (newEngine == null)
+            {
+                return null;
+            }
+            context.Engines.Add(newEngine);
+            context.SaveChanges();
+            return newEngine.GetViewModel;
+        }
+        public EngineViewModel? Update(EngineBindingModel model)
+        {
+            using var context = new MotorPlantDataBase();
+            using var transaction = context.Database.BeginTransaction();
+            try
+            {
+                var Engine = context.Engines.FirstOrDefault(rec =>
+                rec.Id == model.Id);
+                if (Engine == null)
+                {
+                    return null;
+                }
+                Engine.Update(model);
+                context.SaveChanges();
+                Engine.UpdateComponents(context, model);
+                transaction.Commit();
+                return Engine.GetViewModel;
+            }
+            catch
+            {
+                transaction.Rollback();
+                throw;
+            }
+        }
+        public EngineViewModel? Delete(EngineBindingModel model)
+        {
+            using var context = new MotorPlantDataBase();
+            var element = context.Engines
+            .Include(x => x.Components)
+            .FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.Engines.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}
diff --git a/MotorPlant/MotorPlantDatabaseImplement/Migrations/20240308215333_InitialCreate.Designer.cs b/MotorPlant/MotorPlantDatabaseImplement/Migrations/20240308215333_InitialCreate.Designer.cs
new file mode 100644
index 0000000..9e32da0
--- /dev/null
+++ b/MotorPlant/MotorPlantDatabaseImplement/Migrations/20240308215333_InitialCreate.Designer.cs
@@ -0,0 +1,169 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using MotorPlantDatabaseImplement;
+
+#nullable disable
+
+namespace MotorPlantDatabaseImplement.Migrations
+{
+    [DbContext(typeof(MotorPlantDataBase))]
+    [Migration("20240308215333_InitialCreate")]
+    partial class InitialCreate
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "8.0.2")
+                .HasAnnotation("Relational:MaxIdentifierLength", 128);
+
+            SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);
+
+            modelBuilder.Entity("MotorPlantDatabaseImplement.Models.Component", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ComponentName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("float");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Components");
+                });
+
+            modelBuilder.Entity("MotorPlantDatabaseImplement.Models.Engine", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("EngineName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("float");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Engines");
+                });
+
+            modelBuilder.Entity("MotorPlantDatabaseImplement.Models.EngineComponent", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("ComponentId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<int>("EngineId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ComponentId");
+
+                    b.HasIndex("EngineId");
+
+                    b.ToTable("EngineComponents");
+                });
+
+            modelBuilder.Entity("MotorPlantDatabaseImplement.Models.Order", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("datetime2");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("datetime2");
+
+                    b.Property<int>("EngineId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("int");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("float");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("EngineId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("MotorPlantDatabaseImplement.Models.EngineComponent", b =>
+                {
+                    b.HasOne("MotorPlantDatabaseImplement.Models.Component", "Component")
+                        .WithMany("EngineComponents")
+                        .HasForeignKey("ComponentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("MotorPlantDatabaseImplement.Models.Engine", "Engine")
+                        .WithMany("Components")
+                        .HasForeignKey("EngineId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Component");
+
+                    b.Navigation("Engine");
+                });
+
+            modelBuilder.Entity("MotorPlantDatabaseImplement.Models.Order", b =>
+                {
+                    b.HasOne("MotorPlantDatabaseImplement.Models.Engine", null)
+                        .WithMany("Orders")
+                        .HasForeignKey("EngineId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("MotorPlantDatabaseImplement.Models.Component", b =>
+                {
+                    b.Navigation("EngineComponents");
+                });
+
+            modelBuilder.Entity("MotorPlantDatabaseImplement.Models.Engine", b =>
+                {
+                    b.Navigation("Components");
+
+                    b.Navigation("Orders");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}
diff --git a/MotorPlant/MotorPlantDatabaseImplement/Migrations/20240308215333_InitialCreate.cs b/MotorPlant/MotorPlantDatabaseImplement/Migrations/20240308215333_InitialCreate.cs
new file mode 100644
index 0000000..a857529
--- /dev/null
+++ b/MotorPlant/MotorPlantDatabaseImplement/Migrations/20240308215333_InitialCreate.cs
@@ -0,0 +1,125 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace MotorPlantDatabaseImplement.Migrations
+{
+    /// <inheritdoc />
+    public partial class InitialCreate : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "Components",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    ComponentName = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    Cost = table.Column<double>(type: "float", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Components", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Engines",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    EngineName = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    Price = table.Column<double>(type: "float", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Engines", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "EngineComponents",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    EngineId = table.Column<int>(type: "int", nullable: false),
+                    ComponentId = table.Column<int>(type: "int", nullable: false),
+                    Count = table.Column<int>(type: "int", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_EngineComponents", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_EngineComponents_Components_ComponentId",
+                        column: x => x.ComponentId,
+                        principalTable: "Components",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_EngineComponents_Engines_EngineId",
+                        column: x => x.EngineId,
+                        principalTable: "Engines",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Orders",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    Count = table.Column<int>(type: "int", nullable: false),
+                    Sum = table.Column<double>(type: "float", nullable: false),
+                    Status = table.Column<int>(type: "int", nullable: false),
+                    DateCreate = table.Column<DateTime>(type: "datetime2", nullable: false),
+                    DateImplement = table.Column<DateTime>(type: "datetime2", nullable: true),
+                    EngineId = table.Column<int>(type: "int", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Orders", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_Orders_Engines_EngineId",
+                        column: x => x.EngineId,
+                        principalTable: "Engines",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_EngineComponents_ComponentId",
+                table: "EngineComponents",
+                column: "ComponentId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_EngineComponents_EngineId",
+                table: "EngineComponents",
+                column: "EngineId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Orders_EngineId",
+                table: "Orders",
+                column: "EngineId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "EngineComponents");
+
+            migrationBuilder.DropTable(
+                name: "Orders");
+
+            migrationBuilder.DropTable(
+                name: "Components");
+
+            migrationBuilder.DropTable(
+                name: "Engines");
+        }
+    }
+}
diff --git a/MotorPlant/MotorPlantDatabaseImplement/Migrations/MotorPlantDataBaseModelSnapshot.cs b/MotorPlant/MotorPlantDatabaseImplement/Migrations/MotorPlantDataBaseModelSnapshot.cs
new file mode 100644
index 0000000..7479b8f
--- /dev/null
+++ b/MotorPlant/MotorPlantDatabaseImplement/Migrations/MotorPlantDataBaseModelSnapshot.cs
@@ -0,0 +1,166 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using MotorPlantDatabaseImplement;
+
+#nullable disable
+
+namespace MotorPlantDatabaseImplement.Migrations
+{
+    [DbContext(typeof(MotorPlantDataBase))]
+    partial class MotorPlantDataBaseModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "8.0.2")
+                .HasAnnotation("Relational:MaxIdentifierLength", 128);
+
+            SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);
+
+            modelBuilder.Entity("MotorPlantDatabaseImplement.Models.Component", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ComponentName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("float");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Components");
+                });
+
+            modelBuilder.Entity("MotorPlantDatabaseImplement.Models.Engine", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("EngineName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("float");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Engines");
+                });
+
+            modelBuilder.Entity("MotorPlantDatabaseImplement.Models.EngineComponent", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("ComponentId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<int>("EngineId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ComponentId");
+
+                    b.HasIndex("EngineId");
+
+                    b.ToTable("EngineComponents");
+                });
+
+            modelBuilder.Entity("MotorPlantDatabaseImplement.Models.Order", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("datetime2");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("datetime2");
+
+                    b.Property<int>("EngineId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("int");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("float");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("EngineId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("MotorPlantDatabaseImplement.Models.EngineComponent", b =>
+                {
+                    b.HasOne("MotorPlantDatabaseImplement.Models.Component", "Component")
+                        .WithMany("EngineComponents")
+                        .HasForeignKey("ComponentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("MotorPlantDatabaseImplement.Models.Engine", "Engine")
+                        .WithMany("Components")
+                        .HasForeignKey("EngineId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Component");
+
+                    b.Navigation("Engine");
+                });
+
+            modelBuilder.Entity("MotorPlantDatabaseImplement.Models.Order", b =>
+                {
+                    b.HasOne("MotorPlantDatabaseImplement.Models.Engine", null)
+                        .WithMany("Orders")
+                        .HasForeignKey("EngineId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+                });
+
+            modelBuilder.Entity("MotorPlantDatabaseImplement.Models.Component", b =>
+                {
+                    b.Navigation("EngineComponents");
+                });
+
+            modelBuilder.Entity("MotorPlantDatabaseImplement.Models.Engine", b =>
+                {
+                    b.Navigation("Components");
+
+                    b.Navigation("Orders");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}
diff --git a/MotorPlant/MotorPlantDatabaseImplement/MotorPlantDataBase.cs b/MotorPlant/MotorPlantDatabaseImplement/MotorPlantDataBase.cs
new file mode 100644
index 0000000..41ab4eb
--- /dev/null
+++ b/MotorPlant/MotorPlantDatabaseImplement/MotorPlantDataBase.cs
@@ -0,0 +1,29 @@
+using MotorPlantDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace MotorPlantDatabaseImplement
+{
+    public class MotorPlantDataBase : DbContext
+    {
+        protected override void OnConfiguring(DbContextOptionsBuilder
+optionsBuilder)
+        {
+            if (optionsBuilder.IsConfigured == false)
+            {
+                optionsBuilder.UseSqlServer(@"Data Source=DESKTOP-ETBGTEE;Initial Catalog=MotorPlantDatabase;Integrated Security=True;MultipleActiveResultSets=True;;TrustServerCertificate=True");
+            }
+            base.OnConfiguring(optionsBuilder);
+        }
+        public virtual DbSet<Models.Component> Components { set; get; }
+        public virtual DbSet<Engine> Engines { set; get; }
+        public virtual DbSet<EngineComponent> EngineComponents { set; get; }
+        public virtual DbSet<Order> Orders { set; get; }
+
+    }
+}
diff --git a/MotorPlant/MotorPlantDatabaseImplement/MotorPlantDatabaseImplement.csproj b/MotorPlant/MotorPlantDatabaseImplement/MotorPlantDatabaseImplement.csproj
new file mode 100644
index 0000000..d68950d
--- /dev/null
+++ b/MotorPlant/MotorPlantDatabaseImplement/MotorPlantDatabaseImplement.csproj
@@ -0,0 +1,23 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net8.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="8.0.2" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="8.0.2" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="8.0.2">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\MotorPlantContracts\MotorPlantContracts.csproj" />
+    <ProjectReference Include="..\MotorPlantDataModels\MotorPlantDataModels.csproj" />
+  </ItemGroup>
+
+</Project>
diff --git a/MotorPlant/MotorPlantDatabaseImplement/Order.cs b/MotorPlant/MotorPlantDatabaseImplement/Order.cs
new file mode 100644
index 0000000..811f955
--- /dev/null
+++ b/MotorPlant/MotorPlantDatabaseImplement/Order.cs
@@ -0,0 +1,64 @@
+using MotorPlantContracts.BindingModels;
+using MotorPlantContracts.ViewModels;
+using MotorPlantDataModels.Enums;
+using MotorPlantDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+
+namespace MotorPlantDatabaseImplement.Models
+{
+    public class Order : IOrderModel
+    {
+        public int Id { get; private set; }
+        [Required]
+        public int Count { get; private set; }
+        [Required]
+        public double Sum { get; private set; }
+        [Required]
+        public OrderStatus Status { get; private set; }
+        [Required]
+        public DateTime DateCreate { get; private set; }
+        public DateTime? DateImplement { get; private set; }
+        [Required]
+        public int EngineId { get; private set; }
+
+        public static Order? Create(OrderBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Order()
+            {
+                Id = model.Id,
+                Count = model.Count,
+                Sum = model.Sum,
+                Status = model.Status,
+                DateCreate = model.DateCreate,
+                DateImplement = model.DateImplement,
+                EngineId = model.EngineId,
+            };
+        }
+
+        public void Update(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            Status = model.Status;
+            DateImplement = model.DateImplement;
+        }
+
+        public OrderViewModel GetViewModel => new()
+        {
+            EngineId = EngineId,
+            Count = Count,
+            Sum = Sum,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement,
+            Id = Id,
+        };
+
+    }
+}
diff --git a/MotorPlant/MotorPlantDatabaseImplement/OrderStorage.cs b/MotorPlant/MotorPlantDatabaseImplement/OrderStorage.cs
new file mode 100644
index 0000000..1f12ebe
--- /dev/null
+++ b/MotorPlant/MotorPlantDatabaseImplement/OrderStorage.cs
@@ -0,0 +1,94 @@
+using MotorPlantContracts.BindingModels;
+using MotorPlantContracts.SearchModels;
+using MotorPlantContracts.StoragesContracts;
+using MotorPlantContracts.ViewModels;
+using MotorPlantDatabaseImplement.Models;
+
+namespace MotorPlantDatabaseImplement.Implements
+{
+    public class OrderStorage : IOrderStorage
+    {
+        public List<OrderViewModel> GetFullList()
+        {
+            using var context = new MotorPlantDataBase();
+            return context.Orders
+            .Select(x => AccessEngineStorage(x.GetViewModel))
+           .ToList();
+        }
+        public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return new();
+            }
+            using var context = new MotorPlantDataBase();
+            return context.Orders
+            .Where(x => x.Id == model.Id)
+           .Select(x => AccessEngineStorage(x.GetViewModel))
+           .ToList();
+        }
+        public OrderViewModel? GetElement(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new MotorPlantDataBase();
+            return AccessEngineStorage(context.Orders.FirstOrDefault(x => x.Id == model.Id)?.GetViewModel);
+        }
+        public OrderViewModel? Insert(OrderBindingModel model)
+        {
+            var newOrder = Order.Create(model);
+            if (newOrder == null)
+            {
+                return null;
+            }
+            using var context = new MotorPlantDataBase();
+            context.Orders.Add(newOrder);
+            context.SaveChanges();
+            return AccessEngineStorage(newOrder.GetViewModel);
+        }
+        public OrderViewModel? Update(OrderBindingModel model)
+        {
+            using var context = new MotorPlantDataBase();
+            var order = context.Orders.FirstOrDefault(x => x.Id ==
+           model.Id);
+            if (order == null)
+            {
+                return null;
+            }
+            order.Update(model);
+            context.SaveChanges();
+            return AccessEngineStorage(order.GetViewModel);
+        }
+        public OrderViewModel? Delete(OrderBindingModel model)
+        {
+            using var context = new MotorPlantDataBase();
+            var element = context.Orders.FirstOrDefault(rec => rec.Id ==
+           model.Id);
+            if (element != null)
+            {
+                context.Orders.Remove(element);
+                context.SaveChanges();
+                return AccessEngineStorage(element.GetViewModel);
+            }
+            return null;
+        }
+
+        public static OrderViewModel AccessEngineStorage(OrderViewModel model)
+        {
+            if (model == null)
+                return null;
+            using var context = new MotorPlantDataBase();
+            foreach (var Engine in context.Engines)
+            {
+                if (Engine.Id == model.EngineId)
+                {
+                    model.EngineName = Engine.EngineName;
+                    break;
+                }
+            }
+            return model;
+        }
+    }
+}
diff --git a/MotorPlant/MotorPlantFileImplement/OrderStorage.cs b/MotorPlant/MotorPlantFileImplement/OrderStorage.cs
index 5fdd024..8aff0bf 100644
--- a/MotorPlant/MotorPlantFileImplement/OrderStorage.cs
+++ b/MotorPlant/MotorPlantFileImplement/OrderStorage.cs
@@ -71,14 +71,8 @@ namespace MotorPlantFileImplement.Implements
         private OrderViewModel GetViewModel(Order order)
         {
             var viewModel = order.GetViewModel;
-            foreach (var comp in source.Engines)
-            {
-                if (comp.Id == order.EngineId)
-                {
-                    viewModel.EngineName = comp.EngineName;
-                    break;
-                }
-            }
+            var engine = source.Engines.FirstOrDefault(x => x.Id == order.EngineId);
+            viewModel.EngineName = engine?.EngineName;
             return viewModel;
         }
     }
diff --git a/MotorPlant/MotorPlantListImplement/Order.cs b/MotorPlant/MotorPlantListImplement/Order.cs
index f9bc63b..176124c 100644
--- a/MotorPlant/MotorPlantListImplement/Order.cs
+++ b/MotorPlant/MotorPlantListImplement/Order.cs
@@ -37,11 +37,7 @@ namespace MotorPlantListImplement.Models
             {
                 return;
             }
-            EngineId = model.EngineId;
-            Count = model.Count;
-            Sum = model.Sum;
             Status = model.Status;
-            DateCreate = model.DateCreate;
             DateImplement = model.DateImplement;
         }
         public OrderViewModel GetViewModel => new()
diff --git a/MotorPlant/MotorPlantView/MotorPlantView.csproj b/MotorPlant/MotorPlantView/MotorPlantView.csproj
index 0c7b07f..b63b22d 100644
--- a/MotorPlant/MotorPlantView/MotorPlantView.csproj
+++ b/MotorPlant/MotorPlantView/MotorPlantView.csproj
@@ -2,13 +2,17 @@
 
   <PropertyGroup>
     <OutputType>WinExe</OutputType>
-    <TargetFramework>net6.0-windows</TargetFramework>
+    <TargetFramework>net8.0-windows</TargetFramework>
     <Nullable>enable</Nullable>
     <UseWindowsForms>true</UseWindowsForms>
     <ImplicitUsings>enable</ImplicitUsings>
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="8.0.2">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
     <PackageReference Include="Microsoft.Extensions.Configuration" Version="8.0.0" />
     <PackageReference Include="Microsoft.Extensions.Logging" Version="8.0.0" />
     <PackageReference Include="Microsoft.Extensions.Logging.Configuration" Version="8.0.0" />
@@ -20,6 +24,7 @@
   <ItemGroup>
     <ProjectReference Include="..\MotorPlantBusinessLogic\MotorPlantBusinessLogic.csproj" />
     <ProjectReference Include="..\MotorPlantContracts\MotorPlantContracts.csproj" />
+    <ProjectReference Include="..\MotorPlantDatabaseImplement\MotorPlantDatabaseImplement.csproj" />
     <ProjectReference Include="..\MotorPlantFileImplement\MotorPlantFileImplement.csproj" />
     <ProjectReference Include="..\MotorPlantListImplement\MotorPlantListImplement.csproj" />
   </ItemGroup>
diff --git a/MotorPlant/MotorPlantView/Program.cs b/MotorPlant/MotorPlantView/Program.cs
index f808486..1d41c4e 100644
--- a/MotorPlant/MotorPlantView/Program.cs
+++ b/MotorPlant/MotorPlantView/Program.cs
@@ -4,7 +4,7 @@ using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;
 using NLog.Extensions.Logging;
 using MotorPlantBusinessLogic.BusinessLogics;
-using MotorPlantFileImplement.Implements;
+using MotorPlantDatabaseImplement.Implements;
 
 namespace MotorPlantView.Forms
 {