並前往https://sonyvsshadow.pixnet.net/blog/post/468530663-%E4%BD%BF%E7%94%A8sql%E6%8A%8A%E8%B3%87%E6%96%99-group-%EF%BC%8C%E7%84%B6%E5%BE%8C%E5%8F%96%E5%87%BA%E6%AF%8F%E4%B8%80%E5%80%8B%E7%BE%A4%E7%B5%84%E8%A3%A1
