Want to remove an existing user mapping for a login.

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Want to remove an existing user mapping for a login.

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melvers

Posted Friday, November 16, 2012 3:25 PM

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Last Login: Monday, November 19, 2012 9:09 AM
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In SQL Server 2012, I want to remove (programmatically in C# or via SQL command line) a login mapping to a user. I have a login that is mapped to a database user and I want to remove that mapping without removing the login, user or database.

Post #1385873

Lowell

Posted Friday, November 16, 2012 3:36 PM

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looks like it cannot be done;
my knee jerk reaction was to see if ALTER USER supported WITHOUT LOGIN, which it does not;
my next idea was to ALTER USER WITH LOGIN = NULL, which is also not supported.

--syntax errors:
ALTER USER SampleUser WITHOUT LOGIN
ALTER USER SampleUser WITH LOGIN = NULL

i think it's better to drop and recreate the user without login? then you can alter thema nd remap them to the login?

DROP USER SampleUser
CREATE USER SampleUser WITHOUT LOGIN

maybe you could move the user out of it's existing roles so it effectively cannot do anything in the database instead?

Lowell

--There is no spoon, and there's no default ORDER BY in sql server either.
Actually, Common Sense is so rare, it should be considered a Superpower. --my son

Post #1385875

melvers

Posted Monday, November 19, 2012 8:28 AM

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Last Login: Monday, November 19, 2012 9:09 AM
Points: 2, Visits: 2

Thanks. The DROP USER will work for me.

Post #1386426

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