string('email')->nullable()->change(); }); Schema::table('invoices', function (Blueprint $table) { $table->string('customer_email')->nullable()->change(); }); Schema::table('vendors', function (Blueprint $table) { $table->string('email')->nullable()->change(); }); Schema::table('bills', function (Blueprint $table) { $table->string('vendor_email')->nullable()->change(); }); } /** * Reverse the migrations. * * @return void */ public function down() { } }