如何将同一表中的数据从一列复制到另一列?

时间:2020-12-20 20:13:15

Is it possible to copy data from column A to column B for all records in a table in SQL?

是否可以将SQL表中所有记录的数据从A列复制到B列?

2 个解决方案

#1


236  

How about this

这个怎么样

UPDATE table SET columnB = columnA

This will update every row.

这将更新每一行。

#2


47  

UPDATE table_name SET
    destination_column_name=orig_column_name
WHERE condition_if_necessary

#1


236  

How about this

这个怎么样

UPDATE table SET columnB = columnA

This will update every row.

这将更新每一行。

#2


47  

UPDATE table_name SET
    destination_column_name=orig_column_name
WHERE condition_if_necessary