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Asked: 2026-05-21T23:47:22+00:00

I am doing some homework. The users of my database uses some other attributes,

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I am doing some homework. The users of my database uses some other attributes, not just the ones that ASP 2.0 automatically created for me when i implemented the login and registration mechanism. But when i try to save the modification displays me an error. Can someone give me a hand?
This is the error:

enter image description here
The error says:

‘aspnet_Users’ table
– Unable to modify table. ALTER TABLE only allows columns to be added
that can contain nulls, or have a
DEFAULT definition specified, or the
column being added is an identity or
timestamp column, or alternatively if
none of the previous conditions are
satisfied the table must be empty to
allow addition of this column. Column
‘kjoptekvoten’ cannot be added to
non-empty table ‘aspnet_Users’ because
it does not satisfy these conditions.

That database was automatically created when i implemented Forms based authentification and registration. The problem now is that that users needs some more attributes. How can i give to it more attributes? What is the easiest way to do it?Does not mind if it is not theorically correct(It is just for a homework).

I would appreciate a lot your help.

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1 Answer

  1. Editorial Team

    Apart form the technicalities on the database side, there is a deeper issue here.

    You should not alter the aspnet_Users table because you are bypassing the way the membership ‘system’ in asp.net is working. Instead, have a look into the Profile mechanism: https://web.archive.org/web/20211020111657/https://www.4guysfromrolla.com/articles/101106-1.aspx

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