이렇게 @Transactional을 붙여줘야된다 안붙여주면 에러남
@Transactional
@Modifying
@Query(value="DELETE FROM tbl_cart WHERE user_id=?", nativeQuery = true)
void deleteAllByUserId(int id);
참조 https://m.blog.naver.com/PostView.naver?isHttpsRedirect=true&blogId=ydkun2&logNo=221706359126