mysql - MYSQL 从 URL 左字符串返回没有记录

Question

SELECT
domain_usage.url,
LEFT(url,locate('?',url)) AS cleanURL
FROM
domain_usage
WHERE
MONTH(domain_usage.login_date) =  (Now()) AND
YEAR(domain_usage.login_date) =  (Now());

不返回任何记录，也没有错误？我试图从 URL 字段中清除查询字符串.....

有什么想法吗 ？

Answer 1

您的日期比较是错误的。你基本上是在尝试

3 = '2013-01-18 10:36:00'

您需要将苹果与苹果进行比较：

MONTH(domain_usage.login_date) = MONTH(now())

Answer 2

修改你的WHERE条件，

SELECT domain_usage.url, LEFT(url,locate('?',url)) AS cleanURL 
FROM domain_usage
WHERE MONTH(domain_usage.login_date) = MONTH(CURDATE()) AND 
      YEAR(domain_usage.login_date) =  YEAR(CURDATE())