Question

如何根据使用多个表匹配的列数对MySQL查询结果进行排序..

select tbl_user.*, tbl_user_personal.*, tbl_user_physical.*, tbl_user_education.*, tbl_user_lifestyle.* 
        from
        tbl_user, tbl_user_personal, tbl_user_physical, tbl_user_education, tbl_user_lifestyle 
        where
        tbl_user.user_id = tbl_user_personal.user_id and 
        tbl_user.user_id = tbl_user_physical.user_id and 
        tbl_user.user_id = tbl_user_education.user_id and 
        tbl_user.user_id = tbl_user_lifestyle.user_id and 
        (
            tbl_user_personal.user_community = 'some-text..' or
            tbl_user_personal.user_sub_caste = 'some-text..' or
            tbl_user_personal.user_marital_status = 'some-text..' or
            tbl_user_personal.user_children = 'some-text..' or
            tbl_user.user_age in ('some-text..', 'some-text..') or
            tbl_user.user_country = 'some-text..' or
            tbl_user_physical.user_height in('some-text..', 'some-text..') or
            tbl_user_physical.user_physical_status = 'some-text..' or
            tbl_user_education.user_education_category = 'some-text..' or
            tbl_user_education.user_occupation = 'some-text..' or
            tbl_user_lifestyle.user_eating_habits = 'some-text..'
        )

Answer 1

首先，您应该学习正确的join语法。简单规则：切勿在{{1}}子句中使用逗号。

但这不是你的问题。 MySQL将布尔表达式视为数字上下文中的数字，其中1表示true，0表示false。因此，您可以将值一起添加：

from

您也可以将此表达式放在order by ((tbl_user_personal.user_community = 'some-text..') + (tbl_user_personal.user_sub_caste = 'some-text..') + (tbl_user_personal.user_marital_status = 'some-text..') + (tbl_user_personal.user_children = 'some-text..') + (tbl_user.user_age in ('some-text..', 'some-text..')) + (tbl_user.user_country = 'some-text..') + (tbl_user_physical.user_height in('some-text..', 'some-text..')) + (tbl_user_physical.user_physical_status = 'some-text..') + (tbl_user_education.user_education_category = 'some-text..') + (tbl_user_education.user_occupation = 'some-text..') + (tbl_user_lifestyle.user_eating_habits = 'some-text..') ) desc子句中，为其命名，并将其用于select：

order by

Answer 2

使用ORDER BY

ORDER BY table1.column_name ASC | DESC，table2.column_name ASC | DESC;

根据最佳匹配（列数匹配）对MySQL查询结果进行排序

2 个答案: