大佬们，怎么在SQL数据库实现下图的转换啊！！！求教
https://blog.csdn.net/HonyTang/article/details/108528931
https://blog.csdn.net/sinat_28984567/article/details/79865046?utm_medium=distribute.pc_relevant.none-task-blog-opensearch-2.channel_param&depth_1-utm_source=distribute.pc_relevant.none-task-blog-opensearch-2.channel_param
