SELECT * FROM blog_categorias WHERE blog_id = '20' AND especial = '0'
SELECT * FROM blog_categorias_idiomas WHERE categoria_id = '43'
SELECT * FROM blog_categorias_idiomas WHERE categoria_id = '44'
SELECT * FROM blog_categorias_idiomas WHERE categoria_id = '47'
SELECT * FROM blog_categorias_idiomas WHERE categoria_id = '48'
SELECT t1.* FROM blog_articulos as t1 WHERE t1.publicado = '1' AND t1.blog_id = '20' AND t1.id_categoria IN (43,44,47,48) ORDER BY t1.fecha DESC