摘要: 业务:查询指定月份每天经过指定线路的客流量 SELECT day, count(*) num from `data_set` WHERE MONTH(day) = 03 and (station_in_line = 2 or station_out_line = 2) GROUP BY day OR 阅读全文
posted @ 2021-03-25 21:55 不周客 阅读(103) 评论(0) 推荐(0) 编辑