jerryhe326

摘要： sql语言进阶 典型操作 order by - select * from play_list order by createtime; - select * from play_list order by bookedcount desc,createtime asc; order by 语句用于根据指定的列对结果集进行排序 order by 语句默认按照升序对记录排序，使用d... 阅读全文