带有OR条件的MySQL WHERE

Question

MySQL上有这个快捷方式吗？

WHERE month = 'January' OR month = 'January' OR month = 'February' OR month = 'March' OR month = 'April' OR month = 'May' OR month = 'June' 

我试过这个，但它似乎不起作用，

WHERE month = '(January || February || March || April || May || June)'

任何帮助？

Answer 1

回答你的问题：

WHERE `month` IN ('January', 'February', 'March', 'April', 'May', 'June');

在php中

$months = array('January', 'February', 'March', 'April', 'May', 'June');
$sql .= "WHERE `month` IN ('".implode("', '", $months)."')";

除此之外：在存储日期（例如月份）时，最好将它们存储为整数值，而不是字符串。这将有助于性能，I18N，如果使用int值，则可以使用BETWEEN

WHERE `month` BETWEEN 1 AND 6

Answer 2

是的，你可以使用IN条款。像这样：

WHERE month in ('January','February','March','April','May','June')

Answer 3

使用IN子句。

WHERE `month` IN ('January','February','March','April', 'May','June')

查看month中的反引号？它会转义关键字 month ，因为存在一个名为 Month( ) 的内置函数

Answer 4

尝试..

WHERE month IN ('January', 'February', 'March', 'April', 'May', 'June');