Mysql REGEXP 2 words -- 与 AND LIKE 相同

Question

我有

SELECT p.*, gc.*, g.*, m.*, b.*
FROM (products AS p)
LEFT JOIN merchants AS m
    ON m.merchantId = p.merchantId
LEFT JOIN brands AS b
    ON b.brand = p.brand
LEFT JOIN groups_content gc
    ON p.brand = gc.brandsSelect
LEFT JOIN groups g
    ON g.group_id = gc.group_id
WHERE `p`.`percentOff` > gc.percent_off
    AND `g`.`group_active` = 1
    AND `p`.`price_sale` BETWEEN gc.price_min
        AND gc.price_max
    AND `gc`.`group_content_id` = '180'
    AND `p`.`keyword` LIKE '%women%' AND `p`.`keyword` LIKE '%jacket%'
    AND `p`.`status` = 1
ORDER BY p.price_sale ASC 

这会返回 158 个结果

我也有

SELECT p.*, gc.*, g.*, m.*, b.*
FROM (products AS p)
LEFT JOIN merchants AS m
    ON m.merchantId = p.merchantId
LEFT JOIN brands AS b
    ON b.brand = p.brand
LEFT JOIN groups_content gc
    ON p.brand = gc.brandsSelect
LEFT JOIN groups g
    ON g.group_id = gc.group_id
WHERE `p`.`percentOff` > gc.percent_off
    AND `g`.`group_active` = 1
    AND `p`.`price_sale` BETWEEN gc.price_min
        AND gc.price_max
    AND `gc`.`group_content_id` = '180'
    AND `p`.`keyword` REGEXP 'women.+jacket'
    AND `p`.`status` = 1
ORDER BY p.price_sale ASC

这应该返回与之前相同的结果。但只返回17 个结果。我做错了什么？

------------

经过多次搜索，这是正确的正则表达式

AND p.`keyword` REGEXP '^(.+jacket.+women.+)|^(.+women.+jacket.+).*$'

Answer 1

你的正则表达式等不是等价的语句:

CREATE TABLE tab(keyword VARCHAR(100));

INSERT INTO tab(keyword)
VALUES ('jacket for women');

SELECT *
FROM tab p
WHERE  `p`.`keyword` LIKE '%women%' AND `p`.`keyword` LIKE '%jacket%';
-- jacket for women

SELECT *
FROM tab p
WHERE p.`keyword` REGEXP 'women.+jacket';
-- (empty)

SqlFiddleDemo

"woman" 字符串中的任意位置和 "jacket" 字符串中的任意位置

对比

"woman" 开头，然后是任何字符，最后是 "jacket"

编辑:

But How do I get -- "woman" anywhere in string and "jacket" anywhere in string --- using regular expression?

一种方法是使用:

SELECT *
FROM tab
WHERE keyword REGEXP '.*women.*'
  AND keyword REGEXP '.*jacket.*';

我确信对于这种情况存在一个正则表达式。