woocommerce搜索sql

Question

我正在使用SQL查询来加载woocmmerce产品。

我的代码如下

SELECT ID,post_title,post_type, (select meta_value from wp_postmeta where meta_key='_sku' and post_id=ID) as sku 
FROM wp_posts,wp_postmeta 
where post_type='product' and post_status='publish' and post_id=ID 
group by ID 

在这段代码中，我想和SKU，帖子ID，文章标题搜索，所以我写了下面的代码的代码，这是不正常。

SELECT ID,post_title,post_type, (select meta_value from wp_postmeta where meta_key='_sku' and post_id=ID) as sku 
FROM wp_posts,wp_postmeta 
where post_type='product' and post_status='publish' 
    **AND (post_title LIKE 'WS1006%' OR sku LIKE 'WS1006%' OR ID LIKE 'WS1006%') 
group by ID** 

Answer 1

您可以尝试下面的查询。

SELECT p.ID, p.post_title, 
    MAX(CASE WHEN pm1.meta_key = '_sku' then pm1.meta_value ELSE NULL END) as sku 
    FROM wp_posts p LEFT JOIN wp_postmeta pm1 ON (pm1.post_id = p.ID)     
    WHERE p.post_type in('product') AND p.post_status = 'publish' AND post_id=ID 
    GROUP BY p.ID 

Answer 2

不能使用在WHERE条件使用别名作为条件的别名，你需要使用在having子句。

SELECT ID,post_title,post_type, (select meta_value from wp_postmeta where 
meta_key='_sku' and post_id=ID) as sku FROM wp_posts,wp_postmeta where 
post_type='product' and post_status='publish' group by ID Having (post_title 
LIKE '%WS1006%' OR sku LIKE '%WS1006%' OR ID LIKE '%WS1006%') 

这将工作。