使用UNION创建MySQL视图 [英] Creating MySQL View using UNION

问题描述

我正在尝试为以下查询创建视图.

I am trying to create a view for the following query.

SELECT DISTINCT
  products.pid        AS id,
  products.pname      AS name,
  products.p_desc     AS description,
  products.p_loc      AS location,
  products.p_uid      AS userid,
  products.isaproduct AS whatisit
FROM products
UNION
SELECT DISTINCT
  services.s_id       AS id,
  services.s_name     AS name,
  services.s_desc     AS description,
  services.s_uid      AS userid,
  services.s_location AS location,
  services.isaservice AS whatisit
FROM services

但不能这样做.我正在使用MySql查询浏览器.我收到的错误是:

But not able to do so. I am using MySql query browser. The error I am getting is:

只能从SELECT命令的活动结果集中创建视图

A view can only be created from an active resultset of SELECT command

有人可以帮我吗?

推荐答案

CREATE VIEW vw_product_services AS
SELECT DISTINCT products.pid AS id,
                products.pname AS name,
                products.p_desc AS description,
                products.p_loc AS location,
                products.p_uid AS userid,
                products.isaproduct AS whatisit
           FROM products
          UNION
          SELECT DISTINCT services.s_id AS id,
                services.s_name AS name,
                services.s_desc AS description,
                services.s_uid AS userid,
                services.s_location AS location,
                services.isaservice AS whatisit
           FROM services

我尝试了这个，它奏效了！ 谢谢大家:)

I tried this and it worked! Thanks everyone :)

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