diff --git a/PlumbingRepair/PlumbingRepair.sln b/PlumbingRepair/PlumbingRepair.sln
index 0104f70..061d307 100644
--- a/PlumbingRepair/PlumbingRepair.sln
+++ b/PlumbingRepair/PlumbingRepair.sln
@@ -15,6 +15,8 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "PlumbingRepairListImplement
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "PlumbingRepairFileImplement", "PlumbingRepairFileImplement\PlumbingRepairFileImplement.csproj", "{102B6C63-8EB6-4786-BFEA-88B7DB0DB3F0}"
 EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "PlumbingRepairDatabaseImplement", "PlumbingRepairDatabaseImplement\PlumbingRepairDatabaseImplement.csproj", "{6DDC0CCD-97E0-4CB7-8024-C27DB9AEF97B}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -45,6 +47,10 @@ Global
 		{102B6C63-8EB6-4786-BFEA-88B7DB0DB3F0}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{102B6C63-8EB6-4786-BFEA-88B7DB0DB3F0}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{102B6C63-8EB6-4786-BFEA-88B7DB0DB3F0}.Release|Any CPU.Build.0 = Release|Any CPU
+		{6DDC0CCD-97E0-4CB7-8024-C27DB9AEF97B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{6DDC0CCD-97E0-4CB7-8024-C27DB9AEF97B}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{6DDC0CCD-97E0-4CB7-8024-C27DB9AEF97B}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{6DDC0CCD-97E0-4CB7-8024-C27DB9AEF97B}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE
diff --git a/PlumbingRepair/PlumbingRepairDatabaseImplement/Implements/ComponentStorage.cs b/PlumbingRepair/PlumbingRepairDatabaseImplement/Implements/ComponentStorage.cs
new file mode 100644
index 0000000..b25b2fc
--- /dev/null
+++ b/PlumbingRepair/PlumbingRepairDatabaseImplement/Implements/ComponentStorage.cs
@@ -0,0 +1,84 @@
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.SearchModels;
+using PlumbingRepairContracts.StoragesContracts;
+using PlumbingRepairContracts.ViewModels;
+using PlumbingRepairDatabaseImplement.Models;
+
+namespace PlumbingRepairDatabaseImplement.Implements
+{
+    public class ComponentStorage : IComponentStorage
+    {
+        public List<ComponentViewModel> GetFullList()
+        {
+            using var context = new PlumbingRepairDatabase();
+            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 PlumbingRepairDatabase();
+            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 PlumbingRepairDatabase();
+            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 PlumbingRepairDatabase();
+            context.Components.Add(newComponent);
+            context.SaveChanges();
+            return newComponent.GetViewModel;
+        }
+
+        public ComponentViewModel? Update(ComponentBindingModel model)
+        {
+            using var context = new PlumbingRepairDatabase();
+            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 PlumbingRepairDatabase();
+            var element = context.Components.FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.Components.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}
\ No newline at end of file
diff --git a/PlumbingRepair/PlumbingRepairDatabaseImplement/Implements/OrderStorage.cs b/PlumbingRepair/PlumbingRepairDatabaseImplement/Implements/OrderStorage.cs
new file mode 100644
index 0000000..f4274c4
--- /dev/null
+++ b/PlumbingRepair/PlumbingRepairDatabaseImplement/Implements/OrderStorage.cs
@@ -0,0 +1,90 @@
+using Microsoft.EntityFrameworkCore;
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.SearchModels;
+using PlumbingRepairContracts.StoragesContracts;
+using PlumbingRepairContracts.ViewModels;
+using PlumbingRepairDatabaseImplement.Models;
+
+namespace PlumbingRepairDatabaseImplement.Implements
+{
+    public class OrderStorage : IOrderStorage
+    {
+        public OrderViewModel? Delete(OrderBindingModel model)
+        {
+            using var context = new PlumbingRepairDatabase();
+            var element = context.Orders.Include(x => x.Work).FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.Orders.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+
+        public OrderViewModel? GetElement(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new PlumbingRepairDatabase();
+            return context.Orders
+                .Include(x => x.Work)
+                .FirstOrDefault(x => model.Id.HasValue && x.Id == model.Id)
+                ?.GetViewModel;
+        }
+
+        public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
+        {
+            if (!model.Id.HasValue)
+            {
+                return new();
+            }
+            using var context = new PlumbingRepairDatabase();
+            return context.Orders
+                    .Include(x => x.Work)
+                    .Where(x => x.Id == model.Id)
+                    .Select(x => x.GetViewModel)
+                    .ToList();
+        }
+
+        public List<OrderViewModel> GetFullList()
+        {
+            using var context = new PlumbingRepairDatabase();
+            return context.Orders
+                    .Include(x => x.Work)
+                    .Select(x => x.GetViewModel)
+                    .ToList();
+        }
+
+        public OrderViewModel? Insert(OrderBindingModel model)
+        {
+            var newOrder = Order.Create(model);
+            if (newOrder == null)
+            {
+                return null;
+            }
+            using var context = new PlumbingRepairDatabase();
+            context.Orders.Add(newOrder);
+            context.SaveChanges();
+            return context.Orders
+                .Include(x => x.Work)
+                .FirstOrDefault()
+                ?.GetViewModel;
+        }
+
+        public OrderViewModel? Update(OrderBindingModel model)
+        {
+            using var context = new PlumbingRepairDatabase();
+            var order = context.Orders.Include(x => x.Work).FirstOrDefault(x => x.Id == model.Id);
+            if (order == null)
+            {
+                return null;
+            }
+            order.Update(model);
+            context.SaveChanges();
+            return order.GetViewModel;
+        }
+    }
+}
\ No newline at end of file
diff --git a/PlumbingRepair/PlumbingRepairDatabaseImplement/Implements/WorkStorage.cs b/PlumbingRepair/PlumbingRepairDatabaseImplement/Implements/WorkStorage.cs
new file mode 100644
index 0000000..a975c0f
--- /dev/null
+++ b/PlumbingRepair/PlumbingRepairDatabaseImplement/Implements/WorkStorage.cs
@@ -0,0 +1,106 @@
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.SearchModels;
+using PlumbingRepairContracts.StoragesContracts;
+using PlumbingRepairContracts.ViewModels;
+using PlumbingRepairDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace PlumbingRepairDatabaseImplement.Implements
+{
+    public class WorkStorage : IWorkStorage
+    {
+		public List<WorkViewModel> GetFullList()
+		{
+			using var context = new PlumbingRepairDatabase();
+			return context.Works
+					.Include(x => x.Components)
+					.ThenInclude(x => x.Component)
+					.ToList()
+					.Select(x => x.GetViewModel)
+					.ToList();
+		}
+
+		public List<WorkViewModel> GetFilteredList(WorkSearchModel model)
+		{
+			if (string.IsNullOrEmpty(model.WorkName))
+			{
+				return new();
+			}
+			using var context = new PlumbingRepairDatabase();
+			return context.Works
+					.Include(x => x.Components)
+					.ThenInclude(x => x.Component)
+					.Where(x => x.WorkName.Contains(model.WorkName))
+					.ToList()
+					.Select(x => x.GetViewModel)
+					.ToList();
+		}
+
+		public WorkViewModel? GetElement(WorkSearchModel model)
+		{
+			if (string.IsNullOrEmpty(model.WorkName) && !model.Id.HasValue)
+			{
+				return null;
+			}
+			using var context = new PlumbingRepairDatabase();
+			return context.Works
+				.Include(x => x.Components)
+				.ThenInclude(x => x.Component)
+				.FirstOrDefault(x => (!string.IsNullOrEmpty(model.WorkName) && x.WorkName == model.WorkName) ||
+								(model.Id.HasValue && x.Id == model.Id))
+				?.GetViewModel;
+		}
+
+		public WorkViewModel? Insert(WorkBindingModel model)
+		{
+			using var context = new PlumbingRepairDatabase();
+			var newWork = Work.Create(context, model);
+			if (newWork == null)
+			{
+				return null;
+			}
+			context.Works.Add(newWork);
+			context.SaveChanges();
+			return newWork.GetViewModel;
+		}
+
+		public WorkViewModel? Update(WorkBindingModel model)
+		{
+			using var context = new PlumbingRepairDatabase();
+			using var transaction = context.Database.BeginTransaction();
+			try
+			{
+				var work = context.Works.FirstOrDefault(rec => rec.Id == model.Id);
+				if (work == null)
+				{
+					return null;
+				}
+				work.Update(model);
+				context.SaveChanges();
+				work.UpdateComponents(context, model);
+				transaction.Commit();
+				return work.GetViewModel;
+			}
+			catch
+			{
+				transaction.Rollback();
+				throw;
+			}
+		}
+
+		public WorkViewModel? Delete(WorkBindingModel model)
+		{
+			using var context = new PlumbingRepairDatabase();
+			var element = context.Works
+				.Include(x => x.Components)
+				.FirstOrDefault(rec => rec.Id == model.Id);
+			if (element != null)
+			{
+				context.Works.Remove(element);
+				context.SaveChanges();
+				return element.GetViewModel;
+			}
+			return null;
+		}
+	}
+}
\ No newline at end of file
diff --git a/PlumbingRepair/PlumbingRepairDatabaseImplement/Migrations/20240308152131_InitialCreate.Designer.cs b/PlumbingRepair/PlumbingRepairDatabaseImplement/Migrations/20240308152131_InitialCreate.Designer.cs
new file mode 100644
index 0000000..14eeef3
--- /dev/null
+++ b/PlumbingRepair/PlumbingRepairDatabaseImplement/Migrations/20240308152131_InitialCreate.Designer.cs
@@ -0,0 +1,168 @@
+// <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 PlumbingRepairDatabaseImplement;
+
+#nullable disable
+
+namespace PlumbingRepairDatabaseImplement.Migrations
+{
+    [DbContext(typeof(PlumbingRepairDatabase))]
+    [Migration("20240308152131_InitialCreate")]
+    partial class InitialCreate
+    {
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "6.0.27")
+                .HasAnnotation("Relational:MaxIdentifierLength", 128);
+
+            SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder, 1L, 1);
+
+            modelBuilder.Entity("PlumbingRepairDatabaseImplement.Models.Component", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"), 1L, 1);
+
+                    b.Property<string>("ComponentName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("float");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Components");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDatabaseImplement.Models.Order", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"), 1L, 1);
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("datetime2");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("datetime2");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("int");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("float");
+
+                    b.Property<int>("WorkId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("WorkId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDatabaseImplement.Models.Work", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"), 1L, 1);
+
+                    b.Property<double>("Price")
+                        .HasColumnType("float");
+
+                    b.Property<string>("WorkName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Works");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDatabaseImplement.Models.WorkComponent", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"), 1L, 1);
+
+                    b.Property<int>("ComponentId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<int>("WorkId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ComponentId");
+
+                    b.HasIndex("WorkId");
+
+                    b.ToTable("WorkComponents");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDatabaseImplement.Models.Order", b =>
+                {
+                    b.HasOne("PlumbingRepairDatabaseImplement.Models.Work", "Work")
+                        .WithMany()
+                        .HasForeignKey("WorkId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Work");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDatabaseImplement.Models.WorkComponent", b =>
+                {
+                    b.HasOne("PlumbingRepairDatabaseImplement.Models.Component", "Component")
+                        .WithMany("WorkComponents")
+                        .HasForeignKey("ComponentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("PlumbingRepairDatabaseImplement.Models.Work", "Work")
+                        .WithMany("Components")
+                        .HasForeignKey("WorkId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Component");
+
+                    b.Navigation("Work");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDatabaseImplement.Models.Component", b =>
+                {
+                    b.Navigation("WorkComponents");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDatabaseImplement.Models.Work", b =>
+                {
+                    b.Navigation("Components");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}
diff --git a/PlumbingRepair/PlumbingRepairDatabaseImplement/Migrations/20240308152131_InitialCreate.cs b/PlumbingRepair/PlumbingRepairDatabaseImplement/Migrations/20240308152131_InitialCreate.cs
new file mode 100644
index 0000000..3fda43f
--- /dev/null
+++ b/PlumbingRepair/PlumbingRepairDatabaseImplement/Migrations/20240308152131_InitialCreate.cs
@@ -0,0 +1,122 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace PlumbingRepairDatabaseImplement.Migrations
+{
+    public partial class InitialCreate : Migration
+    {
+        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: "Works",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    WorkName = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    Price = table.Column<double>(type: "float", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Works", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Orders",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    WorkId = table.Column<int>(type: "int", nullable: false),
+                    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)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Orders", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_Orders_Works_WorkId",
+                        column: x => x.WorkId,
+                        principalTable: "Works",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "WorkComponents",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    WorkId = 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_WorkComponents", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_WorkComponents_Components_ComponentId",
+                        column: x => x.ComponentId,
+                        principalTable: "Components",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_WorkComponents_Works_WorkId",
+                        column: x => x.WorkId,
+                        principalTable: "Works",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Orders_WorkId",
+                table: "Orders",
+                column: "WorkId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_WorkComponents_ComponentId",
+                table: "WorkComponents",
+                column: "ComponentId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_WorkComponents_WorkId",
+                table: "WorkComponents",
+                column: "WorkId");
+        }
+
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "Orders");
+
+            migrationBuilder.DropTable(
+                name: "WorkComponents");
+
+            migrationBuilder.DropTable(
+                name: "Components");
+
+            migrationBuilder.DropTable(
+                name: "Works");
+        }
+    }
+}
diff --git a/PlumbingRepair/PlumbingRepairDatabaseImplement/Migrations/PlumbingRepairDatabaseModelSnapshot.cs b/PlumbingRepair/PlumbingRepairDatabaseImplement/Migrations/PlumbingRepairDatabaseModelSnapshot.cs
new file mode 100644
index 0000000..e5bbafd
--- /dev/null
+++ b/PlumbingRepair/PlumbingRepairDatabaseImplement/Migrations/PlumbingRepairDatabaseModelSnapshot.cs
@@ -0,0 +1,168 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using PlumbingRepairDatabaseImplement;
+
+#nullable disable
+
+namespace PlumbingRepairDatabaseImplement.Migrations
+{
+    [DbContext(typeof(PlumbingRepairDatabase))]
+    partial class PlumbingRepairDatabaseModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "6.0.27")
+                .HasAnnotation("Relational:MaxIdentifierLength", 128);
+
+            SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder, 1L, 1);
+
+            modelBuilder.Entity("PlumbingRepairDatabaseImplement.Models.Component", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"), 1L, 1);
+
+                    b.Property<string>("ComponentName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("float");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Components");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDatabaseImplement.Models.Order", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"), 1L, 1);
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("datetime2");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("datetime2");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("int");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("float");
+
+                    b.Property<int>("WorkId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("WorkId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDatabaseImplement.Models.Work", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"), 1L, 1);
+
+                    b.Property<double>("Price")
+                        .HasColumnType("float");
+
+                    b.Property<string>("WorkName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Works");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDatabaseImplement.Models.WorkComponent", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"), 1L, 1);
+
+                    b.Property<int>("ComponentId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("int");
+
+                    b.Property<int>("WorkId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ComponentId");
+
+                    b.HasIndex("WorkId");
+
+                    b.ToTable("WorkComponents");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDatabaseImplement.Models.Order", b =>
+                {
+                    b.HasOne("PlumbingRepairDatabaseImplement.Models.Work", "Work")
+                        .WithMany("Orders")
+                        .HasForeignKey("WorkId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Work");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDatabaseImplement.Models.WorkComponent", b =>
+                {
+                    b.HasOne("PlumbingRepairDatabaseImplement.Models.Component", "Component")
+                        .WithMany("WorkComponents")
+                        .HasForeignKey("ComponentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("PlumbingRepairDatabaseImplement.Models.Work", "Work")
+                        .WithMany("Components")
+                        .HasForeignKey("WorkId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Component");
+
+                    b.Navigation("Work");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDatabaseImplement.Models.Component", b =>
+                {
+                    b.Navigation("WorkComponents");
+                });
+
+            modelBuilder.Entity("PlumbingRepairDatabaseImplement.Models.Work", b =>
+                {
+                    b.Navigation("Components");
+
+                    b.Navigation("Orders");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}
diff --git a/PlumbingRepair/PlumbingRepairDatabaseImplement/Models/Component.cs b/PlumbingRepair/PlumbingRepairDatabaseImplement/Models/Component.cs
new file mode 100644
index 0000000..2dd9c29
--- /dev/null
+++ b/PlumbingRepair/PlumbingRepairDatabaseImplement/Models/Component.cs
@@ -0,0 +1,63 @@
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.ViewModels;
+using PlumbingRepairDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace PlumbingRepairDatabaseImplement.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<WorkComponent> WorkComponents { 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
+        };
+    }
+}
\ No newline at end of file
diff --git a/PlumbingRepair/PlumbingRepairDatabaseImplement/Models/Order.cs b/PlumbingRepair/PlumbingRepairDatabaseImplement/Models/Order.cs
new file mode 100644
index 0000000..d969141
--- /dev/null
+++ b/PlumbingRepair/PlumbingRepairDatabaseImplement/Models/Order.cs
@@ -0,0 +1,65 @@
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.ViewModels;
+using PlumbingRepairDataModels.Enums;
+using PlumbingRepairDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+
+namespace PlumbingRepairDatabaseImplement.Models
+{
+    public class Order : IOrderModel
+    {
+        [Required]
+        public int WorkId { get; set; }
+
+        [Required]
+        public int Count { get; set; }
+        [Required]
+        public double Sum { get; set; }
+        [Required]
+        public OrderStatus Status { get; set; }
+        [Required]
+        public DateTime DateCreate { get; set; }
+
+        public DateTime? DateImplement { get; set; }
+
+        public int Id { get; set; }
+
+        public virtual Work Work { get; set; }
+
+        public static Order? Create( OrderBindingModel? model)
+        {
+            if (model == null)
+                return null;
+            return new Order()
+            {
+                Id = model.Id,
+                WorkId = model.WorkId,
+                Count = model.Count,
+                Sum = model.Sum,
+                Status = model.Status,
+                DateCreate = model.DateCreate,
+                DateImplement = model.DateImplement
+            };
+        }
+
+        public void Update(OrderBindingModel? model)
+        {
+            if (model == null)
+                return;
+            Status = model.Status;
+            DateImplement = model.DateImplement;
+        }
+
+        public OrderViewModel GetViewModel => new()
+        {
+            WorkId = WorkId,
+            Count = Count,
+            Sum = Sum,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement,
+            Id = Id,
+            WorkName = Work.WorkName
+        };
+    }
+}
\ No newline at end of file
diff --git a/PlumbingRepair/PlumbingRepairDatabaseImplement/Models/Work.cs b/PlumbingRepair/PlumbingRepairDatabaseImplement/Models/Work.cs
new file mode 100644
index 0000000..06dab3e
--- /dev/null
+++ b/PlumbingRepair/PlumbingRepairDatabaseImplement/Models/Work.cs
@@ -0,0 +1,98 @@
+using PlumbingRepairContracts.BindingModels;
+using PlumbingRepairContracts.ViewModels;
+using PlumbingRepairDataModels.Models;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace PlumbingRepairDatabaseImplement.Models
+{
+    public class Work : IWorkModel
+    {
+        public int Id { get; set; }
+
+        [Required]
+        public string WorkName { get; set; } = string.Empty;
+
+        [Required]
+        public double Price { get; set; }
+
+        private Dictionary<int, (IComponentModel, int)>? _workComponents = null;
+
+        [NotMapped]
+        public Dictionary<int, (IComponentModel, int)> WorkComponents
+        {
+            get
+            {
+                if (_workComponents == null)
+                {
+                    _workComponents = Components
+                            .ToDictionary(recPC => recPC.ComponentId, recPC => (recPC.Component as IComponentModel, recPC.Count));
+                }
+                return _workComponents;
+            }
+        }
+
+        [ForeignKey("WorkId")]
+        public virtual List<WorkComponent> Components { get; set; } = new();
+        [ForeignKey("WorkId")]
+        public virtual List<Order> Orders { get; set; } = new();
+
+        public static Work Create(PlumbingRepairDatabase context, WorkBindingModel model)
+        {
+            return new Work()
+            {
+                Id = model.Id,
+                WorkName = model.WorkName,
+                Price = model.Price,
+                Components = model.WorkComponents.Select(x => new WorkComponent
+                {
+                    Component = context.Components.First(y => y.Id == x.Key),
+                    Count = x.Value.Item2
+                }).ToList()
+            };
+        }
+
+        public void Update(WorkBindingModel model)
+        {
+            WorkName = model.WorkName;
+            Price = model.Price;
+        }
+
+        public WorkViewModel GetViewModel => new()
+        {
+            Id = Id,
+            WorkName = WorkName,
+            Price = Price,
+            WorkComponents = WorkComponents
+        };
+
+        public void UpdateComponents(PlumbingRepairDatabase context, WorkBindingModel model)
+        {
+            var workComponents = context.WorkComponents.Where(rec => rec.WorkId == model.Id).ToList();
+            if (workComponents != null && workComponents.Count > 0)
+            {   // удалили те, которых нет в модели
+                context.WorkComponents.RemoveRange(workComponents.Where(rec => !model.WorkComponents.ContainsKey(rec.ComponentId)));
+                context.SaveChanges();
+                // обновили количество у существующих записей
+                foreach (var updateComponent in workComponents)
+                {
+                    updateComponent.Count = model.WorkComponents[updateComponent.ComponentId].Item2;
+                    model.WorkComponents.Remove(updateComponent.ComponentId);
+                }
+                context.SaveChanges();
+            }
+            var work = context.Works.First(x => x.Id == Id);
+            foreach (var pc in model.WorkComponents)
+            {
+                context.WorkComponents.Add(new WorkComponent
+                {
+                    Work = work,
+                    Component = context.Components.First(x => x.Id == pc.Key),
+                    Count = pc.Value.Item2
+                });
+                context.SaveChanges();
+            }
+            _workComponents = null;
+        }
+    }
+}
\ No newline at end of file
diff --git a/PlumbingRepair/PlumbingRepairDatabaseImplement/Models/WorkComponent.cs b/PlumbingRepair/PlumbingRepairDatabaseImplement/Models/WorkComponent.cs
new file mode 100644
index 0000000..f3a951a
--- /dev/null
+++ b/PlumbingRepair/PlumbingRepairDatabaseImplement/Models/WorkComponent.cs
@@ -0,0 +1,22 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace PlumbingRepairDatabaseImplement.Models
+{
+    public class WorkComponent
+    {
+        public int Id { get; set; }
+
+        [Required]
+        public int WorkId { get; set; }
+
+        [Required]
+        public int ComponentId { get; set; }
+
+        [Required]
+        public int Count { get; set; }
+
+        public virtual Component Component { get; set; } = new();
+
+        public virtual Work Work { get; set; } = new();
+    }
+}
\ No newline at end of file
diff --git a/PlumbingRepair/PlumbingRepairDatabaseImplement/PlumbingRepairDatabase.cs b/PlumbingRepair/PlumbingRepairDatabaseImplement/PlumbingRepairDatabase.cs
new file mode 100644
index 0000000..7d925e0
--- /dev/null
+++ b/PlumbingRepair/PlumbingRepairDatabaseImplement/PlumbingRepairDatabase.cs
@@ -0,0 +1,25 @@
+using PlumbingRepairDatabaseImplement.Models;
+using Microsoft.EntityFrameworkCore;
+
+namespace PlumbingRepairDatabaseImplement
+{
+    public class PlumbingRepairDatabase : DbContext
+    {
+        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+        {
+            if (optionsBuilder.IsConfigured == false)
+            {
+                optionsBuilder.UseSqlServer(@"Server=localhost\SQLEXPRESS;Database=master;Trusted_Connection=True;");
+            }
+            base.OnConfiguring(optionsBuilder);
+        }
+
+        public virtual DbSet<Component> Components { set; get; }
+
+        public virtual DbSet<Work> Works { set; get; }
+
+        public virtual DbSet<WorkComponent> WorkComponents { set; get; }
+
+        public virtual DbSet<Order> Orders { set; get; }
+    }
+}
\ No newline at end of file
diff --git a/PlumbingRepair/PlumbingRepairDatabaseImplement/PlumbingRepairDatabaseImplement.csproj b/PlumbingRepair/PlumbingRepairDatabaseImplement/PlumbingRepairDatabaseImplement.csproj
new file mode 100644
index 0000000..600e273
--- /dev/null
+++ b/PlumbingRepair/PlumbingRepairDatabaseImplement/PlumbingRepairDatabaseImplement.csproj
@@ -0,0 +1,23 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="6.0.27" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="6.0.27" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="6.0.27">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\PlumbingRepairContracts\PlumbingRepairContracts.csproj" />
+    <ProjectReference Include="..\PlumbingRepairDataModels\PlumbingRepairDataModels.csproj" />
+  </ItemGroup>
+
+</Project>
diff --git a/PlumbingRepair/PlumbingRepairView/PlumbingRepairView.csproj b/PlumbingRepair/PlumbingRepairView/PlumbingRepairView.csproj
index 05e94b0..c44d6cd 100644
--- a/PlumbingRepair/PlumbingRepairView/PlumbingRepairView.csproj
+++ b/PlumbingRepair/PlumbingRepairView/PlumbingRepairView.csproj
@@ -14,6 +14,7 @@
 
   <ItemGroup>
     <ProjectReference Include="..\PlumbingRepairBusinessLogic\PlumbingRepairBusinessLogic.csproj" />
+    <ProjectReference Include="..\PlumbingRepairDatabaseImplement\PlumbingRepairDatabaseImplement.csproj" />
     <ProjectReference Include="..\PlumbingRepairFileImplement\PlumbingRepairFileImplement.csproj" />
     <ProjectReference Include="..\PlumbingRepairListImplement\PlumbingRepairListImplement.csproj" />
   </ItemGroup>
diff --git a/PlumbingRepair/PlumbingRepairView/Program.cs b/PlumbingRepair/PlumbingRepairView/Program.cs
index b77b6db..6c208aa 100644
--- a/PlumbingRepair/PlumbingRepairView/Program.cs
+++ b/PlumbingRepair/PlumbingRepairView/Program.cs
@@ -4,7 +4,7 @@ using NLog.Extensions.Logging;
 using PlumbingRepairBusinessLogic.BusinessLogics;
 using PlumbingRepairContracts.BusinessLogicsContracts;
 using PlumbingRepairContracts.StoragesContracts;
-using PlumbingRepairFileImplement.Implements;
+using PlumbingRepairDatabaseImplement.Implements;
 
 namespace PlumbingRepairView
 {