我正在查询结果，我想将customer_id复制到新表字段old_customer_id，customer_id将替换最新记录.
+-------------+-----------------+
| customer_id | old_customer_id |
|-------------+-----------------+
| 5 | |
| 3 | |
| 1 | |
+-------------+-----------------+
在我的查询得到如上结果后，我想将 customer_id 复制到 old_customer_id ，它会
+-------------+-----------------+
| customer_id | old_customer_id |
|-------------+-----------------+
| 5 | 5 |
| 5 | 3 |
| 5 | 1 |
+-------------+-----------------+
最佳答案
UPDATE YourTable
SET old_customer_id = customer_id, customer_id = 5
关于MySQL将查询记录复制到新表字段并更新当前记录，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/22161925/