<?php use Illuminate\Database\Migrations\Migration; use Illuminate\Database\Schema\Blueprint; use Illuminate\Support\Facades\Schema; return new class extends Migration { /** * Run the migrations. */ public function up(): void { Schema::table('systems', function (Blueprint $table) { $table->smallInteger('heartbeat')->nullable(); }); } /** * Reverse the migrations. */ public function down(): void { Schema::table('systems', function (Blueprint $table) { $table->dropColumn('heartbeat'); }); } };