ON UNION ALL，显示两个搜索结果

Question

enter SELECT id
 , stock
 , nombre
 , CONCAT(descuento, '%') AS descuento
 , CONCAT('$', FORMAT(precio, 2)) AS precio
 , CONCAT('$', FORMAT(total, 2)) AS total
 , tipo
 FROM producto
 WHERE stock >= 1
  AND visto IS NULL
   AND nombre LIKE 'materna%'
UNION ALL
SELECT id
     , '' AS 'stock'
     , nombre
     , CONCAT('$', FORMAT(descuento, 2)) AS descuento
     , CONCAT('$', FORMAT(precio, 2)) AS precio
     , CONCAT('$', FORMAT(total, 2)) AS total
     , tipo 
  FROM servicio AS s 
 WHERE visto IS NULL
   AND nombre LIKE 'materna%'

这里

picture example

它显示的结果不对应

由于

Answer 1

请尝试将LIKE与通配符%一起使用。请考虑UNION而不是UNION ALL来省略重复的行。在此处查看实时示例：SQL Fiddle。

SELECT id
     , stock
     , nombre
     , CONCAT(descuento, '%') AS descuento
     , CONCAT('$', FORMAT(precio, 2)) AS precio
     , CONCAT('$', FORMAT(total, 2)) AS total
     , tipo
  FROM producto
 WHERE stock >= 1
  AND visto IS NULL
   AND nombre LIKE 'materna%'
UNION
SELECT id
     , '' AS 'stock'
     , nombre
     , CONCAT('$', FORMAT(descuento, 2)) AS descuento
     , CONCAT('$', FORMAT(precio, 2)) AS precio
     , CONCAT('$', FORMAT(total, 2)) AS total
     , tipo 
  FROM servicio AS s 
 WHERE visto IS NULL
   AND nombre LIKE 'materna%'
;