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mysql-复制一列数据到另一个表，还要在数据前面加字符串，求大神给思路！

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Release： 2016-06-06 09:37:22
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mysqlsql数据库

比如查询A表产品id，复制到B表并且统一加入 product_id，最后的效果是

product_id=1
product_id=2

有没有sql语句能做到？

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mysql sql 数据库
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