Question

这是我的代码：

$qry = "SELECT * 
          FROM parties 
         WHERE schoolid = $schoolid AND 
         WHERE timestart BETWEEN '$dateStart 00:00:00' AND '$dateEnd 23:59:59' 
      ORDER BY timestart, attending";

这是我在回复查询时得到的结果：

  SELECT * 
    FROM parties 
   WHERE schoolid = 100 AND 
   WHERE timestart BETWEEN '2013-08-13 00:00:00' AND '2013-09-12 23:59:59' 
ORDER BY timestart, attending

它不起作用。当我在PHPMyAdmin中手动运行代码时，它只是告诉我语法中有错误。有什么问题？

Answer 1

  SELECT * 
    FROM parties 
   WHERE schoolid = 100 AND 
         timestart BETWEEN '2013-08-13 00:00:00' AND '2013-09-12 23:59:59' 
ORDER BY timestart, attending

删除 AND WHERE ，这在语法上是不正确的 - 正确的是 AND 在该位置。

Answer 2

您输入WHERE两次，而且必须只输入一次。

应该是这样的：

  SELECT * 
    FROM parties 
   WHERE schoolid = 100 AND 
         timestart BETWEEN '2013-08-13 00:00:00' AND '2013-09-12 23:59:59' 
ORDER BY timestart,attending

Answer 3

除非使用子查询，否则查询中应该只有一个WHERE。

在两个日期时间之间获取查询

3 个答案: