摘要: SORT <itab> DESCENDING BY a b c.按a b c降序排 SORT <itab> BY a b DESCENDING c . 按a升序b降序c升序排 阅读全文
posted @ 2019-03-15 11:02 Ctrl+S 阅读(1370) 评论(0) 推荐(0) 编辑