Tag Archives: query

If you’re trying to get all categories in WordPress with a real, raw, mysql sql statement, this is the type of query you can use: SELECT * FROM wp_term_relationships LEFT JOIN wp_term_taxonomy ON (wp_term_relationships.term_taxonomy_id = wp_term_taxonomy.term_taxonomy_id) WHERE wp_term_taxonomy.taxonomy = ‘category’ GROUP BY wp_term_taxonomy.term_id This is how you can get posts of a certain category / taxonomy. I have a few extra lines commented out that could also be used: SELECT * FROM wp_posts LEFT JOIN wp_term_relationships ON (wp_posts.ID = wp_term_relationships.object_id) LEFT JOIN wp_term_taxonomy ON (wp_term_relationships.term_taxonomy_id = wp_term_taxonomy.term_taxonomy_id) WHERE 1 #AND wp_term_taxonomy.taxonomy = ‘category’ AND wp_term_taxonomy.term_id IN (13) #AND wp_term_taxonomy.term_id IN (1,2,3,4,5,6,7) GROUP BY wp_posts.ID ORDER BY ID Update: Omar asks: cool.. but how can I get the NAME of those categories ?? Well, try this: SELECT * FROM wp_term_relationships LEFT JOIN wp_term_taxonomy ON (wp_term_relationships.term_taxonomy_id = wp_term_taxonomy.term_taxonomy_id) LEFT JOIN wp_terms on wp_term_taxonomy.term_taxonomy_id = wp_terms.term_id WHERE wp_term_taxonomy.taxonomy = ‘category’ GROUP BY wp_term_taxonomy.term_id or just for the names: SELECT wp_terms.name FROM wp_term_relationships LEFT JOIN wp_term_taxonomy ON (wp_term_relationships.term_taxonomy_id = wp_term_taxonomy.term_taxonomy_id) LEFT JOIN wp_terms on wp_term_taxonomy.term_taxonomy_id = wp_terms.term_id WHERE wp_term_taxonomy.taxonomy = ‘category’ GROUP BY wp_term_taxonomy.term_id