Run command berikut php artisan make:migration tukar_field_type_table_parcel Edit file migration TukarFieldTypeTableParcel.php seperti berikut Function Up() public function up() { // Schema::table(‘parcels’, function(Blueprint $table) { $table->integer(‘courier’)->unsigned()->change(); $table->foreign(‘courier’)->references(‘id’)->on(‘couriers’); $table->integer(‘distributor’)->unsigned()->change(); $table->foreign(‘distributor’)->references(‘id’)->on(‘distributors’); }); } Function Down() public function down() { // Schema::table(‘parcels’, function(Blueprint $table) { $table->dropForeign(‘parcels_courier_foreign’); $table->dropForeign(‘parcels_distributor_foreign’); }); } *Unsigned() – Bertujuan memastikan nilai integer berkenaan bukan negative *Sila…