Comments on: SQL SERVER – Fix : Error: 4064 – Cannot open user default database. Login failed. Login failed for user

By: DeDoS

DeDoS — Sat, 07 Nov 2009 22:45:46 +0000

Thanks…
Work!

By: Mark

Mark — Fri, 23 Oct 2009 14:06:06 +0000

Saved my skin there mate. Cheers!

By: Anita

Anita — Tue, 28 Jul 2009 11:14:03 +0000

thanks,
it worked :)

By: Moses

Moses — Sat, 25 Jul 2009 01:57:04 +0000

Thanks heaps for this, thought i’d stuffed it!

By: Imran Mohammed

Imran Mohammed — Sun, 19 Jul 2009 17:11:10 +0000

@Kirk

Ask your SysAdmin to give you access to all other databases. Every login should be mapped to a user in a database, only then a login can enter into that database.

Exception to above comment would be, if you enable Guest A/c in all databases, then you can access all databases with out actually having a user in any of the database, Which ofcourse is very dangerous, Guest A/c should be disabled all the time in all databases ( Except Master and Tempdb ).

~ IM.

By: Kirk

Kirk — Sat, 18 Jul 2009 19:27:42 +0000

This worked for my login on the master database but I cannot get it to work for the actual database I want the login to refer to.

By: Abel

Abel — Wed, 08 Jul 2009 19:55:37 +0000

Many thanks….Easy, clean and simple solution!!!!

By: Curvian Vynes

Curvian Vynes — Wed, 08 Jul 2009 14:28:12 +0000

Hi. This did not work for me but this did:

Database properties -> Files

Change owner to relevant user.

By: MarkTab

MarkTab — Wed, 24 Jun 2009 13:00:16 +0000

Thanks Pinal Dave — I had this problem, and am in an environment where I am remote to the box with limited privileges. However, the solution works for me.

Some people have had a problem with their username, and in general I use double quotes for any .NET strings (though the square brackets also work):

alter Login “domain\user” with default_database = master
go

<<>>

alter Login [domain\user] with default_database = master
go

By: Keem

Keem — Thu, 04 Jun 2009 21:13:28 +0000

Thx Ross. You were a great help coz I had gotten stuck for all this time on that same position.
Can anyone help me on how to configure my ‘ sql server authentication’ login ?

By: Ross

Ross — Thu, 04 Jun 2009 01:57:50 +0000

I bashed my head against the same rock that Keem did. the solution is to put the qualified user name in brackets like so

ALTER LOGIN [HOME-PC\User] WITH DEFAULT_DATABASE=master

By: sma

sma — Sat, 16 May 2009 12:39:18 +0000

thank u for ur help

By: KatyGirl

KatyGirl — Thu, 07 May 2009 02:23:28 +0000

So simple !! thanks that worked a treat !

By: Chris

Chris — Tue, 05 May 2009 17:58:27 +0000

Thanks! The top search hit I tried (MSKB 307864) didn’t work; the SQLCMD syntax generated a “Sqlcmd: ‘-E’: Unknown Option” error. Your solution is more intuitive–and, most importantly, actually works! Thanks again.

By: Keem

Keem — Fri, 03 Apr 2009 21:23:08 +0000

Hey,
i got a problem which i didn’t realize last time. I’m using windows authentication, and my server name is for example “home-pc\server”, So how do i set the default database in this case ?
I have tried using the method you give above and replacing the user name with the server name and i get the message below

[
Msg 15151, Level 16, State 1, Line 1
Cannot alter the login 'HOME-PC\KEEM', because it does not exist or you do not have permission.
]

By: krishna prakash

krishna prakash — Thu, 02 Apr 2009 05:59:51 +0000

Dev
This is the best solution i fount the google.
Thanks

By: Keem

Keem — Wed, 01 Apr 2009 15:36:20 +0000

Thanks so much. You were really more than helpful….

By: Lloyd R

Lloyd R — Tue, 17 Mar 2009 00:35:49 +0000

Thanks, worked. And much simpler than Microsoft’s KB. Used it in SqlExpress2008

By: Brian

Brian — Tue, 27 Jan 2009 17:47:33 +0000

We have a UserID and login that is used by an application. It has been around since mid-2004. It was working as of last week; today I get the 4064 error message. I can log in as myself, using Windows Authentication, to the database server machine; i can see the program Userid’s default database, and can in fact run SELECT queries against various tables. I ran the ALTER statement that you printed above; I also right-clicked the database and made sure that the program UserID had at least SELECT access to the database (it did). I also set the program UserID’s default database to Master. (The database desired is listed in the program’s connection string.)

When I close and restart SQL Server 2005 and attempt to login as the program UserID, I still get the 4064 error message.

I’m stumped.

By: wwd

wwd — Tue, 27 Jan 2009 12:35:58 +0000

hi, thanks for the solution.
its really help to sort out things. accidently detached the database. run into trouble due to unable to login with windows authentication.

thank for help