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Editorial Team
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Asked: 2026-06-03T02:14:51+00:00

I’ve got a ‘huge’ table with 750k records. I need to alter some columns

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I’ve got a ‘huge’ table with 750k records. I need to alter some columns of this table. I have the following statements:

ALTER TABLE [MyTable] ALTER COLUMN [MyFirstField]  NTEXT          NULL
ALTER TABLE [MyTable] ALTER COLUMN [MySecondField] NVARCHAR (50)  NULL
  • MyFirstField is changed from NTEXT COLLATE SQL_Latin1_General_CP1_CI_AS NULL
  • MySecondField is changed from NVARCHAR (50) COLLATE SQL_Latin1_General_CP1_CI_AS NULL

It takes quite some time to convert all the records. Any ideas how to spead up this process?

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1 Answer

  1. Editorial Team

    You can’t speed this up.

    The text values for each and every column need to be converted from the selected collation to the default one. This takes time.

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