я ошибся! я могу один раз ошибиться?

Bank/BankContracts/SearchModels/ProgramSearchModel.cs

@@ -3,7 +3,7 @@
     public class ProgramSearchModel
     {
         public int? Id { get; set; }
-        public int? ClientId { get; set; }
+        public string? ClientSnils { get; set; }
         public string? ProgramName { get; set; }
         public double? InterestRate { get; set; }
     }

Bank/BankDatabaseImplement/BankDatabase.cs

@@ -14,6 +14,11 @@ namespace BankDatabaseImplement
             }
             base.OnConfiguring(optionsBuilder);
         }
+        protected override void OnModelCreating(ModelBuilder modelBuilder)
+        {
+            modelBuilder.Entity<Client>()
+                .HasKey(c => c.Snils);
+        }
         public virtual DbSet<Client> Clients { set; get; }
         public virtual DbSet<ClientProgram> ClientPrograms { set; get; }
         public virtual DbSet<ClientDeposit> ClientDeposits { set; get; }

Bank/BankDatabaseImplement/Migrations/20240502003921_InitialCreate.Designer.cs

@@ -0,0 +1,491 @@
+// <auto-generated />
+using System;
+using BankDatabaseImplement;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace BankDatabaseImplement.Migrations
+{
+    [DbContext(typeof(BankDatabase))]
+    [Migration("20240502003921_InitialCreate")]
+    partial class InitialCreate
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "8.0.4")
+                .HasAnnotation("Relational:MaxIdentifierLength", 128);
+
+            SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.Client", b =>
+                {
+                    b.Property<string>("Snils")
+                        .HasColumnType("nvarchar(450)");
+
+                    b.Property<string>("ClientName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("ClientPatronymic")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("ClientSurname")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("Email")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("PasswordHash")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("Phone")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<int>("WorkerId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Snils");
+
+                    b.HasIndex("WorkerId");
+
+                    b.ToTable("Clients");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.ClientDeposit", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ClientSnils")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(450)");
+
+                    b.Property<int>("DepositId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ClientSnils");
+
+                    b.HasIndex("DepositId");
+
+                    b.ToTable("ClientDeposits");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.ClientProgram", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ClientSnils")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(450)");
+
+                    b.Property<int>("ProgramId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ClientSnils");
+
+                    b.HasIndex("ProgramId");
+
+                    b.ToTable("ClientPrograms");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.Currency", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<double>("Course")
+                        .HasColumnType("float");
+
+                    b.Property<string>("CurrencyName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Currencies");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.Deposit", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<DateOnly>("OpeningDate")
+                        .HasColumnType("date");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("float");
+
+                    b.Property<int>("WorkerId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("WorkerId");
+
+                    b.ToTable("Deposits");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.DepositCurrency", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("CurrencyId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("DepositId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("CurrencyId");
+
+                    b.HasIndex("DepositId");
+
+                    b.ToTable("DepositCurrencies");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.Program", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<double>("InterestRate")
+                        .HasColumnType("float");
+
+                    b.Property<string>("ProgramName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Programs");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.ProgramCurrency", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("CurrencyId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("ProgramId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("CurrencyId");
+
+                    b.HasIndex("ProgramId");
+
+                    b.ToTable("ProgramCurrencies");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.Refill", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("DepositId")
+                        .HasColumnType("int");
+
+                    b.Property<DateOnly>("RefillDate")
+                        .HasColumnType("date");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("float");
+
+                    b.Property<int>("WorkerId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("DepositId");
+
+                    b.HasIndex("WorkerId");
+
+                    b.ToTable("Refills");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.Term", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Duration")
+                        .HasColumnType("int");
+
+                    b.Property<int>("ProgramId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ProgramId");
+
+                    b.ToTable("Terms");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.Worker", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Email")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("PasswordHash")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("Phone")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<int?>("WorkerId")
+                        .HasColumnType("int");
+
+                    b.Property<string>("WorkerName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("WorkerPatronymic")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("WorkerSurname")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("WorkerId");
+
+                    b.ToTable("Workers");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.Client", b =>
+                {
+                    b.HasOne("BankDatabaseImplement.Models.Worker", "Worker")
+                        .WithMany()
+                        .HasForeignKey("WorkerId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Worker");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.ClientDeposit", b =>
+                {
+                    b.HasOne("BankDatabaseImplement.Models.Client", "Client")
+                        .WithMany("Deposits")
+                        .HasForeignKey("ClientSnils")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("BankDatabaseImplement.Models.Deposit", "Deposit")
+                        .WithMany("Clients")
+                        .HasForeignKey("DepositId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Client");
+
+                    b.Navigation("Deposit");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.ClientProgram", b =>
+                {
+                    b.HasOne("BankDatabaseImplement.Models.Client", "Client")
+                        .WithMany("Programs")
+                        .HasForeignKey("ClientSnils")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("BankDatabaseImplement.Models.Program", "Program")
+                        .WithMany("Clients")
+                        .HasForeignKey("ProgramId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Client");
+
+                    b.Navigation("Program");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.Deposit", b =>
+                {
+                    b.HasOne("BankDatabaseImplement.Models.Worker", "Worker")
+                        .WithMany()
+                        .HasForeignKey("WorkerId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Worker");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.DepositCurrency", b =>
+                {
+                    b.HasOne("BankDatabaseImplement.Models.Currency", "Currency")
+                        .WithMany("Deposits")
+                        .HasForeignKey("CurrencyId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("BankDatabaseImplement.Models.Deposit", "Deposit")
+                        .WithMany("Currencies")
+                        .HasForeignKey("DepositId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Currency");
+
+                    b.Navigation("Deposit");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.ProgramCurrency", b =>
+                {
+                    b.HasOne("BankDatabaseImplement.Models.Currency", "Currency")
+                        .WithMany("Programs")
+                        .HasForeignKey("CurrencyId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("BankDatabaseImplement.Models.Program", "Program")
+                        .WithMany("Currencies")
+                        .HasForeignKey("ProgramId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Currency");
+
+                    b.Navigation("Program");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.Refill", b =>
+                {
+                    b.HasOne("BankDatabaseImplement.Models.Deposit", "Deposit")
+                        .WithMany("Refills")
+                        .HasForeignKey("DepositId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("BankDatabaseImplement.Models.Worker", "Worker")
+                        .WithMany()
+                        .HasForeignKey("WorkerId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Deposit");
+
+                    b.Navigation("Worker");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.Term", b =>
+                {
+                    b.HasOne("BankDatabaseImplement.Models.Program", "Program")
+                        .WithMany("Terms")
+                        .HasForeignKey("ProgramId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Program");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.Worker", b =>
+                {
+                    b.HasOne("BankDatabaseImplement.Models.Worker", null)
+                        .WithMany("Workers")
+                        .HasForeignKey("WorkerId");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.Client", b =>
+                {
+                    b.Navigation("Deposits");
+
+                    b.Navigation("Programs");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.Currency", b =>
+                {
+                    b.Navigation("Deposits");
+
+                    b.Navigation("Programs");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.Deposit", b =>
+                {
+                    b.Navigation("Clients");
+
+                    b.Navigation("Currencies");
+
+                    b.Navigation("Refills");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.Program", b =>
+                {
+                    b.Navigation("Clients");
+
+                    b.Navigation("Currencies");
+
+                    b.Navigation("Terms");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.Worker", b =>
+                {
+                    b.Navigation("Workers");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

Bank/BankDatabaseImplement/Migrations/20240502003921_InitialCreate.cs

@@ -0,0 +1,365 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace BankDatabaseImplement.Migrations
+{
+    /// <inheritdoc />
+    public partial class InitialCreate : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "Currencies",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    CurrencyName = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    Course = table.Column<double>(type: "float", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Currencies", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Programs",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    ProgramName = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    InterestRate = table.Column<double>(type: "float", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Programs", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Workers",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    WorkerSurname = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    WorkerName = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    WorkerPatronymic = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    Phone = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    Email = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    PasswordHash = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    WorkerId = table.Column<int>(type: "int", nullable: true)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Workers", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_Workers_Workers_WorkerId",
+                        column: x => x.WorkerId,
+                        principalTable: "Workers",
+                        principalColumn: "Id");
+                });
+
+            migrationBuilder.CreateTable(
+                name: "ProgramCurrencies",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    ProgramId = table.Column<int>(type: "int", nullable: false),
+                    CurrencyId = table.Column<int>(type: "int", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_ProgramCurrencies", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_ProgramCurrencies_Currencies_CurrencyId",
+                        column: x => x.CurrencyId,
+                        principalTable: "Currencies",
+                        principalColumn: "Id");
+                    table.ForeignKey(
+                        name: "FK_ProgramCurrencies_Programs_ProgramId",
+                        column: x => x.ProgramId,
+                        principalTable: "Programs",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Terms",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    Duration = table.Column<int>(type: "int", nullable: false),
+                    ProgramId = table.Column<int>(type: "int", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Terms", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_Terms_Programs_ProgramId",
+                        column: x => x.ProgramId,
+                        principalTable: "Programs",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Clients",
+                columns: table => new
+                {
+                    Snils = table.Column<string>(type: "nvarchar(450)", nullable: false),
+                    ClientSurname = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    ClientName = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    ClientPatronymic = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    Phone = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    Email = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    PasswordHash = table.Column<string>(type: "nvarchar(max)", nullable: false),
+                    WorkerId = table.Column<int>(type: "int", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Clients", x => x.Snils);
+                    table.ForeignKey(
+                        name: "FK_Clients_Workers_WorkerId",
+                        column: x => x.WorkerId,
+                        principalTable: "Workers",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Deposits",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    WorkerId = table.Column<int>(type: "int", nullable: false),
+                    Sum = table.Column<double>(type: "float", nullable: false),
+                    OpeningDate = table.Column<DateOnly>(type: "date", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Deposits", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_Deposits_Workers_WorkerId",
+                        column: x => x.WorkerId,
+                        principalTable: "Workers",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "ClientPrograms",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    ClientSnils = table.Column<string>(type: "nvarchar(450)", nullable: false),
+                    ProgramId = table.Column<int>(type: "int", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_ClientPrograms", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_ClientPrograms_Clients_ClientSnils",
+                        column: x => x.ClientSnils,
+                        principalTable: "Clients",
+                        principalColumn: "Snils",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_ClientPrograms_Programs_ProgramId",
+                        column: x => x.ProgramId,
+                        principalTable: "Programs",
+                        principalColumn: "Id");
+                });
+
+            migrationBuilder.CreateTable(
+                name: "ClientDeposits",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    ClientSnils = table.Column<string>(type: "nvarchar(450)", nullable: false),
+                    DepositId = table.Column<int>(type: "int", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_ClientDeposits", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_ClientDeposits_Clients_ClientSnils",
+                        column: x => x.ClientSnils,
+                        principalTable: "Clients",
+                        principalColumn: "Snils",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_ClientDeposits_Deposits_DepositId",
+                        column: x => x.DepositId,
+                        principalTable: "Deposits");
+                });
+
+            migrationBuilder.CreateTable(
+                name: "DepositCurrencies",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    DepositId = table.Column<int>(type: "int", nullable: false),
+                    CurrencyId = table.Column<int>(type: "int", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_DepositCurrencies", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_DepositCurrencies_Currencies_CurrencyId",
+                        column: x => x.CurrencyId,
+                        principalTable: "Currencies",
+                        principalColumn: "Id");
+                    table.ForeignKey(
+                        name: "FK_DepositCurrencies_Deposits_DepositId",
+                        column: x => x.DepositId,
+                        principalTable: "Deposits",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Refills",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "int", nullable: false)
+                        .Annotation("SqlServer:Identity", "1, 1"),
+                    DepositId = table.Column<int>(type: "int", nullable: false),
+                    WorkerId = table.Column<int>(type: "int", nullable: false),
+                    Sum = table.Column<double>(type: "float", nullable: false),
+                    RefillDate = table.Column<DateOnly>(type: "date", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Refills", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_Refills_Deposits_DepositId",
+                        column: x => x.DepositId,
+                        principalTable: "Deposits",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_Refills_Workers_WorkerId",
+                        column: x => x.WorkerId,
+                        principalTable: "Workers",
+                        principalColumn: "Id");
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ClientDeposits_ClientSnils",
+                table: "ClientDeposits",
+                column: "ClientSnils");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ClientDeposits_DepositId",
+                table: "ClientDeposits",
+                column: "DepositId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ClientPrograms_ClientSnils",
+                table: "ClientPrograms",
+                column: "ClientSnils");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ClientPrograms_ProgramId",
+                table: "ClientPrograms",
+                column: "ProgramId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Clients_WorkerId",
+                table: "Clients",
+                column: "WorkerId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_DepositCurrencies_CurrencyId",
+                table: "DepositCurrencies",
+                column: "CurrencyId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_DepositCurrencies_DepositId",
+                table: "DepositCurrencies",
+                column: "DepositId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Deposits_WorkerId",
+                table: "Deposits",
+                column: "WorkerId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ProgramCurrencies_CurrencyId",
+                table: "ProgramCurrencies",
+                column: "CurrencyId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ProgramCurrencies_ProgramId",
+                table: "ProgramCurrencies",
+                column: "ProgramId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Refills_DepositId",
+                table: "Refills",
+                column: "DepositId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Refills_WorkerId",
+                table: "Refills",
+                column: "WorkerId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Terms_ProgramId",
+                table: "Terms",
+                column: "ProgramId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Workers_WorkerId",
+                table: "Workers",
+                column: "WorkerId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "ClientDeposits");
+
+            migrationBuilder.DropTable(
+                name: "ClientPrograms");
+
+            migrationBuilder.DropTable(
+                name: "DepositCurrencies");
+
+            migrationBuilder.DropTable(
+                name: "ProgramCurrencies");
+
+            migrationBuilder.DropTable(
+                name: "Refills");
+
+            migrationBuilder.DropTable(
+                name: "Terms");
+
+            migrationBuilder.DropTable(
+                name: "Clients");
+
+            migrationBuilder.DropTable(
+                name: "Currencies");
+
+            migrationBuilder.DropTable(
+                name: "Deposits");
+
+            migrationBuilder.DropTable(
+                name: "Programs");
+
+            migrationBuilder.DropTable(
+                name: "Workers");
+        }
+    }
+}

Bank/BankDatabaseImplement/Migrations/BankDatabaseModelSnapshot.cs

@@ -0,0 +1,488 @@
+// <auto-generated />
+using System;
+using BankDatabaseImplement;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Metadata;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+
+#nullable disable
+
+namespace BankDatabaseImplement.Migrations
+{
+    [DbContext(typeof(BankDatabase))]
+    partial class BankDatabaseModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "8.0.4")
+                .HasAnnotation("Relational:MaxIdentifierLength", 128);
+
+            SqlServerModelBuilderExtensions.UseIdentityColumns(modelBuilder);
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.Client", b =>
+                {
+                    b.Property<string>("Snils")
+                        .HasColumnType("nvarchar(450)");
+
+                    b.Property<string>("ClientName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("ClientPatronymic")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("ClientSurname")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("Email")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("PasswordHash")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("Phone")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<int>("WorkerId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Snils");
+
+                    b.HasIndex("WorkerId");
+
+                    b.ToTable("Clients");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.ClientDeposit", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ClientSnils")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(450)");
+
+                    b.Property<int>("DepositId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ClientSnils");
+
+                    b.HasIndex("DepositId");
+
+                    b.ToTable("ClientDeposits");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.ClientProgram", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ClientSnils")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(450)");
+
+                    b.Property<int>("ProgramId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ClientSnils");
+
+                    b.HasIndex("ProgramId");
+
+                    b.ToTable("ClientPrograms");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.Currency", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<double>("Course")
+                        .HasColumnType("float");
+
+                    b.Property<string>("CurrencyName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Currencies");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.Deposit", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<DateOnly>("OpeningDate")
+                        .HasColumnType("date");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("float");
+
+                    b.Property<int>("WorkerId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("WorkerId");
+
+                    b.ToTable("Deposits");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.DepositCurrency", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("CurrencyId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("DepositId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("CurrencyId");
+
+                    b.HasIndex("DepositId");
+
+                    b.ToTable("DepositCurrencies");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.Program", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<double>("InterestRate")
+                        .HasColumnType("float");
+
+                    b.Property<string>("ProgramName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Programs");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.ProgramCurrency", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("CurrencyId")
+                        .HasColumnType("int");
+
+                    b.Property<int>("ProgramId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("CurrencyId");
+
+                    b.HasIndex("ProgramId");
+
+                    b.ToTable("ProgramCurrencies");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.Refill", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("DepositId")
+                        .HasColumnType("int");
+
+                    b.Property<DateOnly>("RefillDate")
+                        .HasColumnType("date");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("float");
+
+                    b.Property<int>("WorkerId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("DepositId");
+
+                    b.HasIndex("WorkerId");
+
+                    b.ToTable("Refills");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.Term", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Duration")
+                        .HasColumnType("int");
+
+                    b.Property<int>("ProgramId")
+                        .HasColumnType("int");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ProgramId");
+
+                    b.ToTable("Terms");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.Worker", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("int");
+
+                    SqlServerPropertyBuilderExtensions.UseIdentityColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Email")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("PasswordHash")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("Phone")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<int?>("WorkerId")
+                        .HasColumnType("int");
+
+                    b.Property<string>("WorkerName")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("WorkerPatronymic")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.Property<string>("WorkerSurname")
+                        .IsRequired()
+                        .HasColumnType("nvarchar(max)");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("WorkerId");
+
+                    b.ToTable("Workers");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.Client", b =>
+                {
+                    b.HasOne("BankDatabaseImplement.Models.Worker", "Worker")
+                        .WithMany()
+                        .HasForeignKey("WorkerId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Worker");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.ClientDeposit", b =>
+                {
+                    b.HasOne("BankDatabaseImplement.Models.Client", "Client")
+                        .WithMany("Deposits")
+                        .HasForeignKey("ClientSnils")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("BankDatabaseImplement.Models.Deposit", "Deposit")
+                        .WithMany("Clients")
+                        .HasForeignKey("DepositId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Client");
+
+                    b.Navigation("Deposit");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.ClientProgram", b =>
+                {
+                    b.HasOne("BankDatabaseImplement.Models.Client", "Client")
+                        .WithMany("Programs")
+                        .HasForeignKey("ClientSnils")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("BankDatabaseImplement.Models.Program", "Program")
+                        .WithMany("Clients")
+                        .HasForeignKey("ProgramId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Client");
+
+                    b.Navigation("Program");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.Deposit", b =>
+                {
+                    b.HasOne("BankDatabaseImplement.Models.Worker", "Worker")
+                        .WithMany()
+                        .HasForeignKey("WorkerId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Worker");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.DepositCurrency", b =>
+                {
+                    b.HasOne("BankDatabaseImplement.Models.Currency", "Currency")
+                        .WithMany("Deposits")
+                        .HasForeignKey("CurrencyId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("BankDatabaseImplement.Models.Deposit", "Deposit")
+                        .WithMany("Currencies")
+                        .HasForeignKey("DepositId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Currency");
+
+                    b.Navigation("Deposit");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.ProgramCurrency", b =>
+                {
+                    b.HasOne("BankDatabaseImplement.Models.Currency", "Currency")
+                        .WithMany("Programs")
+                        .HasForeignKey("CurrencyId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("BankDatabaseImplement.Models.Program", "Program")
+                        .WithMany("Currencies")
+                        .HasForeignKey("ProgramId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Currency");
+
+                    b.Navigation("Program");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.Refill", b =>
+                {
+                    b.HasOne("BankDatabaseImplement.Models.Deposit", "Deposit")
+                        .WithMany("Refills")
+                        .HasForeignKey("DepositId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("BankDatabaseImplement.Models.Worker", "Worker")
+                        .WithMany()
+                        .HasForeignKey("WorkerId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Deposit");
+
+                    b.Navigation("Worker");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.Term", b =>
+                {
+                    b.HasOne("BankDatabaseImplement.Models.Program", "Program")
+                        .WithMany("Terms")
+                        .HasForeignKey("ProgramId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Program");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.Worker", b =>
+                {
+                    b.HasOne("BankDatabaseImplement.Models.Worker", null)
+                        .WithMany("Workers")
+                        .HasForeignKey("WorkerId");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.Client", b =>
+                {
+                    b.Navigation("Deposits");
+
+                    b.Navigation("Programs");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.Currency", b =>
+                {
+                    b.Navigation("Deposits");
+
+                    b.Navigation("Programs");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.Deposit", b =>
+                {
+                    b.Navigation("Clients");
+
+                    b.Navigation("Currencies");
+
+                    b.Navigation("Refills");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.Program", b =>
+                {
+                    b.Navigation("Clients");
+
+                    b.Navigation("Currencies");
+
+                    b.Navigation("Terms");
+                });
+
+            modelBuilder.Entity("BankDatabaseImplement.Models.Worker", b =>
+                {
+                    b.Navigation("Workers");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

Bank/BankDatabaseImplement/Models/Client.cs

@@ -3,6 +3,7 @@ using System.ComponentModel.DataAnnotations.Schema;
 using System.ComponentModel.DataAnnotations;
 using BankContracts.BindingModels;
 using BankContracts.ViewModels;
+using Microsoft.EntityFrameworkCore;
 
 namespace BankDatabaseImplement.Models
 {
@@ -23,11 +24,11 @@ namespace BankDatabaseImplement.Models
         [Required]
         public int WorkerId { get; set; }
         public virtual Worker? Worker { get; set; }
-        [ForeignKey("ClientId")]
+        [ForeignKey("ClientSnils")]
         public virtual List<ClientProgram> Programs { get; set; } = new();
         private Dictionary<int, IProgramModel>?
             _clientPrograms { get; set; } = null;
-        [ForeignKey("ClientId")]
+        [ForeignKey("ClientSnils")]
         public virtual List<ClientDeposit> Deposits { get; set; } = new();
         private Dictionary<int, IDepositModel>?
             _clientDeposits { get; set; } = null;

Bank/BankDatabaseImplement/Models/ClientDeposit.cs

@@ -3,6 +3,7 @@ using System.ComponentModel.DataAnnotations.Schema;
 using System.ComponentModel.DataAnnotations;
 using BankContracts.BindingModels;
 using BankContracts.ViewModels;
+using Microsoft.EntityFrameworkCore;
 
 namespace BankDatabaseImplement.Models
 {
@@ -10,7 +11,7 @@ namespace BankDatabaseImplement.Models
     {
         public int Id { get; set; }
         [Required]
-        public int ClientId { get; set; }
+        public string ClientSnils { get; set; } = string.Empty;
         [Required]
         public int DepositId { get; set; }
         public virtual Client Client { get; set; } = new();

Bank/BankDatabaseImplement/Models/ClientProgram.cs

@@ -10,7 +10,7 @@ namespace BankDatabaseImplement.Models
     {
         public int Id { get; set; }
         [Required]
-        public int ClientId { get; set; }
+        public string ClientSnils { get; set; } = string.Empty;
         [Required]
         public int ProgramId { get; set; }
         public virtual Client Client { get; set; } = new();

Bank/BankDatabaseImplement/Models/Deposit.cs

@@ -23,8 +23,7 @@ namespace BankDatabaseImplement.Models
         [ForeignKey("DepositId")]
         public virtual List<Refill> Refills { get; set; } = new();
         private Dictionary<int, ICurrencyModel>?
-            _depositCurrencies
+            _depositCurrencies { get; set; } = null;
-        { get; set; } = null;
         [NotMapped]
         public Dictionary<int, ICurrencyModel> DepositCurrencies
         {