I want to copy some data in a single table in a SQL Server 2008 database and copy it into the same table and change the values in one column of the copied data to a single specified number. Here is an example, in the following table called Metric, the data is:I want to copy some data in a single table in a
阅读背景：
将数据复制到同一个表，并将一个列中的复制数据的值更改为指定的值。
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