MySQL查询-日期范围内的按日期排序和组字段

Question

我想在同一天按日期和代码ASC订购以下查询： 例如在特定日期（按日期时间排序）和同一天按代码排序的所有票证。

我已经尝试过分组方式，但是它不起作用。

这是我的查询；

SELECT 
      tck_NRicevuta as ticket,
      tck_dataOUT AS date_out,
      tck_ID_tariffa AS code,
      park_ticket.tck_importo AS ToTal 
  FROM
      park_ticket 
 WHERE
      tck_flaguscita =  'U'
ORDER BY
      date_out, code

Query result: wrong!!- I'd want ordered by datetime and then by code in the same day

Answer 1

您只能通过使用date()上的date_out来按日期对结果进行排序

SELECT tck_NRicevuta as ticket,
    tck_dataOUT AS date_out,
    tck_ID_tariffa AS code,
    park_ticket.tck_importo AS ToTal 
FROM park_ticket 
WHERE tck_flaguscita =  'U' 
ORDER BY date(date_out),code