摘要: -- 列转行(UNPIVOT) select row_number () OVER ( ORDER BY a) rows_no,a,列4 from 表1 unpivot (列4 for a in (列1, 列2, 列3)) as a 阅读全文
posted @ 2022-04-20 11:15 KyrieLee 阅读(222) 评论(0) 推荐(0) 编辑