MySQL UNION和喜欢多表。#1064 Mysql

Question

感谢阅读我的问题.我是想把多个表的3列连接在一起，然后找到匹配LIKE请求的nameProduct列.所有表都有不同的列，看起来就像3列：name，id和rate.这是我的代码。

(
    SELECT
        nameProduct,
        rate,
        idProduct
    FROM
        tblaptoplist 

)
UNION
    (
    SELECT
        nameProduct,
        rate,
        idProduct
    FROM
        tbcpulist 
)
UNION
    (
    SELECT
        nameProduct,
        rate,
        idProduct
    FROM
        tbgraphicslist
)
UNION
    (
    SELECT
        nameProduct,
        rate,
        idProduct
    FROM
        tbpccaselist 
)
UNION
    (
    SELECT
        nameProduct,
        rate,
        idProduct
    FROM
        tbradiatorslist 
)
UNION
    (
    SELECT
        nameProduct,
        rate,
        idProduct
    FROM
        tbramlist 

)WHERE nameProduct LIKE 'Asus'
;

而MySQL是报告。

#1064 - You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near 'WHERE
    nameProduct LIKE 'Asus' LIMIT 0, 25' at line 54

我做错了什么？请帮助我

Answer 1

你不能应用 WHERE 以至于 UNION 直接进行查询。你可以对每个子选择进行过滤查询，或者在SELECT中对UNION的结果进行包装。

SELECT *
  FROM (
      (
      SELECT
        nameProduct,
        rate,
        idProduct
      FROM
        tblaptoplist 
      )
      UNION ...
  ) AS r
 WHERE r.nameProduct LIKE 'Asus'