![](/img/trans.png)
[英]How to write sql statement to newly added column with another table values?
[英]A sql statement, how to copy values in 1 column to another column in that same table
示例:有一个包含3列的表格c1,c2和c3。
- c1 is the PK.
- c2 is empty.
- c3 is same data type as c2 and empty.
如何编写一条sql语句将c3中的值相应地复制到c2中的所有行?
请试试:
UPDATE YourTable
SET C2=C3
声明:本站的技术帖子网页,遵循CC BY-SA 4.0协议,如果您需要转载,请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.