两个日期之间的MYSQL搜索

Question

我在数据库中有两个日期：

from_dateTime = 2013-06-12
to_dateTime   = 2013-07-10

我想搜索from_dateTime和to_dateTime之间的所有记录。我试着在mysql中使用以下代码：

SELECT *
FROM users i
WHERE i.from_dateTime >= '2013-06-12' AND i.to_dateTime <= '2013-07-10'

但它没有像我预期的那样奏效。为什么我得到空结果集？

更新

from_dateTime = 2013-06-11
to_dateTime   = 2013-06-12

SQL：

SELECT * FROM users i WHERE  NOW() between i.from_dateTime AND i.to_dateTime 

NOW()是2013-06-12 08:17:13，命令也无法找到我的记录。

Answer 1

问题在于您要比较日期和日期时间。日期从午夜开始。任何时间组件都大于相应的日期。试试这个：

SELECT *
FROM users u
WHERE date(NOW()) between u.from_dateTime AND u.to_dateTime 

Answer 2

SELECT * 
FROM users i 
WHERE cast(NOW() as date) 
      between i.from_dateTime AND i.to_dateTime

<强> SQL FIDDLE

Answer 3

select from table_name where datetime_column >= '2013-06-11' and datetime_column <= '2013-06-12'

Answer 4

使用between

SELECT * FROM users u where date(NOW()) between u.from_dateTime and u.to_dateTime