如何在mysql中选择日期和时间之间的行？

Question

有一个包含三列的表。 ID、日期和时间。我需要选择 2014/01/04 和 2014/06/15（由绿色指定）之间的行，其中开始时间为 12:00:00，完成时间为 20:00:00（由蓝色指定）。如何选择所有蓝色行？

我用了这个方法：

$query = "SELECT * FROM $database_table 
WHERE UTCdate BETWEEN '{$from_date}' AND '{$to_date}' 
AND satellite_derived_time BETWEEN CAST('{$from_time}' AS UNSIGNED) 
AND CAST('{$to_time}' AS UNSIGNED)";

但这是不对的，因为时间并不总是像日期一样增加。

我需要日期在 2014/01/04 和 2014/06/15 之间并且时间在 12:00:00 和 20:00:00 之间的所有行。

日期没问题，因为我可以在 from_date 和 to_date 之间使用，但我的问题是时间。看表，时间并没有像日期一样增加，所以我不能在时间之间使用。例如，我的时间从 135911 开始，以 020719 结束，因此它只列出了这两个数字之间的行，但我需要所有蓝色行，例如不在此范围内的第 6 行。

Answer 1

这就是答案：
UTCdate 是 date 并且 satellite_derived_time 是 time 在表中。

//Get the accessible first day from date range between '$from_date' and '$to_date'. Then get the first time that is bigger or equal to '$from_time'. If there is no time bigger than '$from_time' in the specified first day so it get the first time of next day.
{
  //Find the first accessible day between two given date range.
  $first_day = "(SELECT UTCdate FROM $database_table WHERE UTCdate BETWEEN '{$from_date}' AND '{$to_date}' LIMIT 1)";
  $result = mysql_query($first_day) or die('Query faild'.mysql_error());
  $first_day_rows = mysql_fetch_assoc($result);


  //Get id of the nearest day that is biggest or equal to '$from_date' and '$from_time'.
  $first_time = "(SELECT id FROM $database_table WHERE UTCdate = '{$first_day_rows['UTCdate']}' AND satellite_derived_time >= CAST('{$from_time}' AS UNSIGNED) LIMIT 1)";
  $result = mysql_query($first_time) or die('Query faild'.mysql_error());
  $first_time_rows = mysql_fetch_assoc($result);


  if((!$first_time_rows) && $first_day_rows['UTCdate'])
  {
      $first_day = "(SELECT UTCdate FROM $database_table WHERE UTCdate > '{$first_day_rows['UTCdate']}' LIMIT 1)";

      $first_time = "(SELECT id FROM $database_table WHERE UTCdate = $first_day AND satellite_derived_time >= CAST('0' AS UNSIGNED) LIMIT 1)";
  }
}





//Get the accessible last day from date range between '$from_date' and '$to_date'. Then get the last time that is smaller or equal to '$to_time'. If there is no time lesser than '$to_time' in the specified last day so it get the last time of previous day.
{
  //Find the last accessible day between two given date range.
  $last_day = "(SELECT UTCdate FROM $database_table WHERE UTCdate BETWEEN '{$from_date}' AND '{$to_date}' ORDER BY UTCdate DESC LIMIT 1)";
  $result = mysql_query($last_day) or die('Query faild'.mysql_error());
  $last_day_rows = mysql_fetch_assoc($result);



  //Get id of the nearest day that is biggest or equal to '$from_date' and '$from_time'.
  $last_time = "(SELECT id FROM $database_table WHERE UTCdate = '{$last_day_rows['UTCdate']}' AND satellite_derived_time <= CAST('{$to_time}' AS UNSIGNED) ORDER BY satellite_derived_time DESC LIMIT 1)";
  $result = mysql_query($last_time) or die('Query faild'.mysql_error());
  $last_time_rows = mysql_fetch_assoc($result);


  if((!$last_time_rows) && $last_day_rows['UTCdate'])
  {
      $last_day = "(SELECT UTCdate FROM $database_table WHERE UTCdate < '{$last_day_rows['UTCdate']}' ORDER BY UTCdate DESC LIMIT 1)";          

      $last_time = "(SELECT id FROM $database_table WHERE UTCdate = $last_day AND satellite_derived_time <= CAST('235959' AS UNSIGNED) ORDER BY satellite_derived_time DESC LIMIT 1)";
  }
}

Answer 2

编辑 1：

这完全适合我：

$query = "SELECT * FROM $database_table 
           WHERE UTCdate BETWEEN '{$from_date}' AND '{$to_date}' 
             AND satellite_derived_time 
                   BETWEEN CAST('{$from_time}' AS UNSIGNED) 
                       AND CAST('{$to_time}' AS UNSIGNED)";

但没有显示我需要的所有行。它只显示在12:00:00 和20:00:00 之间的行，例如不显示第6 行，因为它的时间是23

将查询的一部分更改如下：

SELECT * FROM $database_table 
 WHERE str_to_date( concat( UTCdate, ' ', satellite_derived_time ),
                    '%Y%m%d %H%i%s' )
 BETWEEN str_to_date( concat( '{$from_date}', ' ', '{$from_time}' ),
                      '%Y%m%d %H%i%s' )
     AND str_to_date( concat( '{$to_date}', ' ', '{$to_time}' ),
                      '%Y%m%d %H%i%s' )

---

假设您输入的日期是yyyymmdd 格式，时间是H:i:s 格式。

select * from $database_table 
 where str_to_date( UTCdate, '%Y%m%d' ) 
        between str_to_date( '$from_date', '%Y%m%d' ) 
            and str_to_date( '$to_date', '%Y%m%d' ) 
   and str_to_date( satellite_derived_time, '%H%i%s' )
        /*
           between str_to_date( '$fromTime', '%Y%m%d' ) 
               and str_to_date( '$toTime', '%Y%m%d' )
        */
        -- or, if you use straight time format, then 
        between '$fromTime' and '$toTime'

使用预处理语句绑定变量。

Answer 3

编写 php 代码，以便您的数据库处理此命令。

SELECT * FROM yourtable 
WHERE UTCdate BETWEEN  20140104 and 20140615   -- these are integers
AND satellite_derived_time BETWEEN '120000' and '200000' -- these are strings