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How do I alter an existing normal column to Persisted computed column in SQL Server 2012?

For 2008 version, I found the following link which states to Add new computed column and drop the normal column. Is there a way to do this without dropping the column?

How to change a normal column to "computed" column

Santhoshkumar KB
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  • Why would you want to NOT drop the original column? The values are going to be computed anyway when you create the new column, yes? – TBowman Jun 23 '17 at 16:34

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