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.+).*$'
最佳答案
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)
"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。
关于Mysql REGEXP 2 words -- 与 AND LIKE 相同,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/34283873/