public partial class MyMigration : Migration { protected override void Up(MigrationBuilder migrationBuilder) { migrationBuilder.CreateTable( name: "MyTable", columns: table => new { Id = table.Column(nullable: false), Name = table.Column (nullable: false), DateCreated = table.Column (nullable: false), }, constraints: table => { table.PrimaryKey("PK_MyTable", x => x.Id); }); } protected override void Down(MigrationBuilder migrationBuilder) { migrationBuilder.DropTable( name: "MyTable"); } }
public partial class MyMigration : Migration { protected override void Up(MigrationBuilder migrationBuilder) { migrationBuilder.AddColumnThis code demonstrates how to modify an existing database table using MigrationBuilder. The `AddColumn` method is used to add a new column to the table. Package library: Microsoft.EntityFrameworkCore Overall, MigrationBuilder is a useful class for managing database migrations in code and is commonly used in conjunction with the Entity Framework Core library.( name: "Description", table: "MyTable", nullable: true); } protected override void Down(MigrationBuilder migrationBuilder) { migrationBuilder.DropColumn( name: "Description", table: "MyTable"); } }