小编Tox*_*oxa的帖子

我有桌子:

product_id | filter_id
        68 | 2
        68 | 4
        66 | 1
        69 | 4
        67 | 1
        67 | 5

我想得到

`product_id` WHERE `filter_id` = '2' AND `filter_id` = '4'

即,我只需得到product_id= 68

SELECT `product_id` FROM `filter` WHERE `filter_id` IN (2,4) - unsuitable

我怎样才能做到这一点？