how to alter table column using laravel migration code example

Example 1: add column to migration laravel

class AddProfileToUsers extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::table('users', function (Blueprint $table) {
            $table->string('profile')->nullable();
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::table('shop_users', function (Blueprint $table) {
            $table->dropColumn(['profile']);
        });
    }
}

Example 2: laravel 6 migration add column to existing table

migration add column to existing table in laravel 6