如何在WordPress中左联接wp_terms，wp_term_relationships，wp_term_taxonomy和wp_termmeta表？

Question

为了报告和整理数据，我想加入所有包含与术语相关的信息的WordPress表。

我真的不是非常使用join语句，所以我不知道该怎么做。 我猜它看起来像这样：

SELECT wp_terms.term_id, wp_terms.name, wp_term.slug, wp_term_relationships.object_id, wp_term_relationships.term_taxonomy_id, wp_term_taxonomy.term_id, wp_term_taxonomy.taxonomy, wp_term_taxonomy.description, wp_term_taxonomy.parent.parent, wp_termmeta.term_id, wp_termmeta.meta_key, wp_termmeta.meta_value. 
FROM wp_terms, wp_term_relationships, wp_term_taxonomy, wp_termmeta
LEFT JOIN wp_term_relationships ON wp_terms.term_id = wp_term_relationships.term_taxonomy_id
LEFT JOIN wp_term_taxonomy ON term_taxonomy_id
LEFT JOIN wp_termmeta on term_id; 

任何帮助表示赞赏。

Answer 1

我所做的只是解决您的查询。 检查这是否是您所需要的。

SELECT wp_terms.term_id, wp_terms.name, wp_term_relationships.object_id, wp_term_relationships.term_taxonomy_id, wp_term_taxonomy.term_id, wp_term_taxonomy.taxonomy, wp_term_taxonomy.description, wp_term_taxonomy.parent, wp_termmeta.term_id, wp_termmeta.meta_key, wp_termmeta.meta_value
FROM wp_terms
LEFT JOIN wp_term_relationships ON wp_terms.term_id = wp_term_relationships.term_taxonomy_id
LEFT JOIN wp_term_taxonomy ON wp_term_taxonomy.term_taxonomy_id = wp_term_relationships.term_taxonomy_id
LEFT JOIN wp_termmeta on wp_termmeta.term_id = wp_terms.term_id