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mysql 合并两表的相同字段sql语句

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Release： 2016-06-07 17:52:57
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mysql 合并两表的相同字段方法很简单直接利用union联合查询即可实现。

SQL UNION 操作符
UNION 操作符用于合并两个或多个 SELECT 语句的结果集。

请注意，UNION 内部的 SELECT 语句必须拥有相同数量的列。列也必须拥有相似的数据类型。同时，每条 SELECT 语句中的列的顺序必须相同。

SQL UNION 语法

 代码如下 复制代码

SELECT column_name(s) FROM table_name1
UNION
SELECT column_name(s) FROM table_name2

例

 代码如下 复制代码

(SELECT ts.products_id,ts.sort from top_selling ts)

union(SELECT na.products_id,na.sort from new_arrival na)

order by rand()

limit 4
Related labels：
union Union query
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