protected override void Up(MigrationBuilder migrationBuilder) { var dbKeys = DatabaseTools.GetDatabaseDefaults(migrationBuilder.ActiveProvider); migrationBuilder.CreateTable( name: "Blog", columns: table => new { Id = table.Column <int>(nullable: false) .Annotation(dbKeys.ValueGenerationStrategy, dbKeys.SerialColumn), CreatedAt = table.Column <DateTime>(nullable: true), UpdatedAt = table.Column <DateTime>(nullable: true), Title = table.Column <string>(nullable: true), Content = table.Column <string>(nullable: true) }, constraints: table => { table.PrimaryKey("PK_Blog", x => x.Id); }); }