using Microsoft.EntityFrameworkCore.Migrations; namespace Ewide.Database.Migrations.Migrations { public partial class removeAreaNumberParent : Migration { protected override void Up(MigrationBuilder migrationBuilder) { migrationBuilder.DropColumn( name: "ParentCode", table: "ewide_area_number"); } protected override void Down(MigrationBuilder migrationBuilder) { migrationBuilder.AddColumn( name: "ParentCode", table: "ewide_area_number", type: "varchar(10) CHARACTER SET utf8mb4", maxLength: 10, nullable: true, comment: "父级区域代码"); } } }