我有这个疑问,其运行良好:MySQL查询问题 - 嵌套和/或声明
SELECT count(distinct p.products_id) as total
FROM (products p
LEFT JOIN manufacturers m
USING(manufacturers_id), products_description pd,
categories c, products_to_categories p2c)
LEFT JOIN meta_tags_products_description mtpd
ON mtpd.products_id= p2c.products_id
AND mtpd.language_id = 1
WHERE (p.products_status = 1 AND p.products_id = pd.products_id
AND pd.language_id = 1 AND p.products_id = p2c.products_id
AND p2c.categories_id = c.categories_id
AND (
(pd.products_name LIKE '%3220%'
OR p.products_model LIKE '%3220%'
OR m.manufacturers_name LIKE '%3220%'
OR (mtpd.metatags_keywords LIKE '%3220%'
AND mtpd.metatags_keywords !='')
OR
(mtpd.metatags_description LIKE '%3220%'
AND mtpd.metatags_description !='')
OR
pd.products_description LIKE '%3220%'
)
)
)
但我想无论是寻找那些WHERE子句,或给出一个数字关键字值作为例子,搜索对于产品ID,只需将此添加到上一个查询中即可:
OR (p.products_id=3220)
但由于某种原因,加法冻结了mysql服务器。它只是继续执行查询,它永远不会结束。我必须手动重新启动服务器。我做错了什么?
哇。你知道你可以对齐和缩进SQL,对吧? – GolezTrol 2011-05-21 16:39:00
该查询看起来很丑! – Lobo 2011-05-21 16:46:03
你究竟在哪里添加OR?最后一个括号之后? – squawknull 2011-05-21 16:46:31