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Editorial Team
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Asked: 2026-05-25T18:16:03+00:00

I read over a great tutorial on how to encrypt the data using a

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I read over a great tutorial on how to encrypt the data using a symmetrical key in one column.
Click here to view it.

This has helped me set up a column for encryption, which is what I need. My problem is that I will constantly be updating rows in my database – so copying over one whole original column to the encrypted columm like the tutorial shows doesn’t work. Is there a way that I can insert a value that is given to me (using C#/asp) and direclty encrypt it as I insert it into the database, rather than having to place it in one column and copying it over, and then dropping the other column?

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1 Answer

  1. Editorial Team

    Just call EncryptByKey on your data to encrypt You don’t need another column. In this case it has to be included in your SQL which should be a parameterized query or a stored procedure.

    Insert into Whatever
    YourEncryptedData
    Values ( EncryptByKey(…))
    You may have top open your key first depending on your implementation.

    http://msdn.microsoft.com/en-us/library/ms174361.aspx

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