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When removing the identity property from a column via the GUI design table option I believe the table (and if the column is a key field; any associated non-clustered indexes) are recreated.

Does anyone know of a way to drop the identity property from a column without causing this overhead?

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up vote 3 down vote accepted

You can't do it in TSQL without dropping the column. Maybe add a new column without the IDENTITY property, copy the data, drop the old column?

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