Change SQL Server Authentication Programmatically

Jul 23, 2005


Does anyone here know whether it is possible to change the
authentication method of a SQL server instance programmatically, rather
than going through enterprise manager.

I am using SQL-DMO (under C#) for some other things, but the
documentation is so bad that I can't find out whether what I want to do
can be done. I have also tried googling but came up empty handed.

I hope that someone can help me.


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SQL Server 2008 :: Database In Single-user Mode / How To Change It Programmatically

Mar 10, 2015

Recently we had multiple production failures because one database was in single-user mode. I am trying to recreate this scenario to write a script that will kick out that connection that was holding database in single-user.In SSMS window 1 I run the following code:

use master
alter database test
set single_user
with rollback immediate


Yes, it shows one record, but the database name is master, not test. And indeed, I run it from the context of master. Also tried sp_who, sp_who2, sys.dm_exec_requests - nothing works. For dm_exec_requests it shows nothing because it does not run at the current moment.Any other solutions to catch this SPID with a script?

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Server Authentication Change Question

Nov 13, 2007

I recently inherited a SQL 2005 Standard database that I am being asked to change the Server authentication mode for. SQL system is managing a local database for Microsoft Systems Management Server 2003. Currently the system is running in SQL Server & Windows authentication mode. I am going to change it to Windows Authentication mode. Can someone point me to a checklist I could refer to before I make the change to be sure I don't take down my database?

Thanks in advance.

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Change The Authentication Mode Of The SQL Server

Dec 12, 2006

I installed SQL Server 2005 using Windows Authentication Mode (Windows Authentication)"

How can I change the Authentication Mode of the SQL server from "Windows Authentication Mode (Windows Authentication)"
to "Mixed Mode (Windows Authentication and SQL Server Authentication)"?

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SQL Server Express Authentication Mode Change

Jul 6, 2005

Does anyone know how to change the SQL Express authentication mode from Windows Authentication to Mixed Mode after it's already been installed?   

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ASP Authentication With SQL Server 2005 - Not Express, Permanent Change

May 8, 2006

Hi all,
I've read up on the fact that if you use SQL server 2005 instead of SQL express you need to change the connection string in web.config.
Is there anyway to make this default connection type, or do I have to do it for every website I create. i.e. is there a global file that this connection can be entered into. Then whenever I start a new website I don't have to put the string in.
Just me being lazy really. But it's nice to know if it's possible.
Many thanks

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Cannot Change Server Authentication In Management Studio Express

Jul 18, 2006

I use the Mangement Studio Express to manage a MSDE 2000 instance and notice that the Server authentication area in the Security is disabled for that instance. But for an Express instance, the Server authentication area is enabled. Is this difference caused by some settings?



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Server Authentication - How To Let User Change Password In Advance Of Expiration Date

Jul 22, 2015

We need to use SQL Server Authentication for some reason and would like to enforce Password Policy with 90-day expiration period. I found "Change password" dialogue appears when I first logged in with the new user, but don't know

(1)what happens when the user failed to change the password before it's expired or
(2)how a user can change his password in advance of the expiration date with no particular server-level permission.

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Change SQL Collation Programmatically

Sep 10, 2006

hi all... how can i change the collation of a table that i dynamically created during runtime??i wanna change the default collation to Arabic

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Programmatically Change Property

Apr 24, 2006

In the old DTS, we can use the ActiveX Script to change any task's property programmatically.

Can we still do it in SSIS? Using the Script task? It seems changing the value of variables then use a expression can do some of the work, but what if a task has no expression defined?

Say, I want to change the Fuzzy look up reference table name.

Can we do it?

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How To Change Password To Dts Package Programmatically?

Jun 19, 2007

 I was wondering if it is possible to change the password on a SQL Server 2000 DTS package programatically instead of justmanually using the the interface?
 I have over 150 DTS packages  used for building BI data cubes and our password policy requires a password change every 60 days.
I would like to write a windows application that loops through all the DTS packages and changes the password.
 Please advise.

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Change Mdf To Sql Authentication

Sep 13, 2007

I have a web app, designed using VWD Express and using SQL 2005 Express. It has a mdf database called "client". It was created using security of windows authentication. I have already changed my instance of sql server express to accept mixed windows and sql authentication.
 How do I change my "client" database's permissions to the sql authentication? I need to add a user name and password as a requirement for my web host to be able to attach the mdf to their instance of sql 2005. It has to be the same user and password as I use with my web host's sql server 2005.
Thank you in advance.

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Change Authentication

May 24, 2006

I am not good endlish. I am thai.

I try to change authentication from win --> sql authen. I am use sql express and management tool.I am select at .sqlexpress --> property -->security and change authentication from win authentication to sql authentication and click OK

after that re-connect and change to sql authentication but It not work.

Pls tell me How to change authentication.

Thank you for you help

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To Change The Authentication Mode

Aug 26, 2007

Dear All..
            I am using sql server 2005 , the problem with me is that I want to change my Authentication type.... now It has setted as 'Windows Authentication and Sql Server Authentication', Here I wants to change to 'Sql Server Authentication' Only... Can I do it without re-installing my sql server... I did try by going Securiy Tab in properties of my server... there are two options 1)Windows Authentication 2)Sql Server and windows Authentication mode,   I want to change it to only Sql server Authentication....meaning to say - shld ask for authentication whenever log on to server
hope any one can help me
Thanks in Advance

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How Do I Change The Authentication Mode?

Nov 14, 2007

Change the Authentication Mode of the SQL server from "Windows Authentication Mode (Windows Authentication)"
to "Mixed Mode (Windows Authentication and SQL Server Authentication)".

How do I do this?

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SQL Authentication Error On Password Change

May 30, 2005

I have instaled SQL Server2000 in Administrator user login.My OS is Windows Adavance Server2000. It works Fine. If i change my Administrator Password and Login with the new Password then Sql Server dosn't Run.It says Authentication error if i try to run from service.
I belive DBA's in this forum can help me out.

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I Have SQL Authentication But Can Connect To SQL DBs Without Being Asked To Log In. I Need To Change This.

Mar 13, 2008

Hello, I have several SQL 2000 logins on our servers. I removed the builtin/ groups and only have SQL authentication users, although the server is operating in "Mixed Mode". How can I secure this? I don't understand how we can just connect to any DB without ever being asked to log in. Let me know if you can help. Thanks.

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Need To Change Authentication Type Of My First DB In SQL05

Jul 7, 2007

* I was able to configure and install the DB

* I accidentally selected Windows Authentication

Now it won't let me login and keeps giving me an error.

Question: how do i change the authentication type without getting into the db? is there something I'm missing?

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Need To Change Developers Acct To Windows Authentication

Jul 20, 2005

I have my SQL 7.0 server set for Mixed security. I see now (finally)the advantages of having windows authentication security for windowsgroups.I do most of my developing in Access Projects which require a login ofsome type. I have been using my SQL login to develop with SQL andthen when I give it to the user, I set the project to use Windowsauthentication. I want to be able to have Windows authentication onmy domain account but the user name for my windows account is the sameas my SQL account and it won't let me change the existing account.Now what happens is after I develop the product I have to have theuser login and go in and change to windows authentication. It won'tlet me do it with my sql account.I fear that if I delete my sql account and create a windowsauthentication account all the views, sps, etc. that I have createdwill still have the reference to the sql login and therefore not work.Do I need to have a generic sql account for developing? One thought Ihad was to create a new domain account so I can create that windowslogin and at least get my most recent projects working like I want to?Hope this makes sense to someone.Thanks in advance for your time.Sherry

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DB Engine :: Authentication After Password Change On MSAs

Jul 30, 2015

We are experiencing authentication/ Kerberos issues after a password for the MSA's has changed. We use MSA for our SQL 2012 and windows 2012 combination Servers. This errors creates issues while backing up and Service Broker connectivity.We had to restart sql services to fix it, but this not seem to be a resolution for me because the next time the password changes on these MSA's we may have to restart sql services.There seems to be a known issue for windows 2008 R2 servers and fix is available and we incorporated it. But the issue we are facing is on windows 2012 Server.

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Change Authentication Method In A Local Database File

Apr 13, 2007

I have made a small project which uses a local database file as a part of the project. The project is running fine om my local machine, but when I upload it to the remote server, the login fails for the server.

I suspect this is can be solved by using sqlserver authentication. But I have now spent a lot of time trying to configure the database file to use this authentication mode. As I see it there are three possible solutions to the problem.

use management studio express to configure the local mdf file (Ecxept that I cant find out how to connect to the mdf-file) and from here change the authentication method to sqlserver authentication.
use Visual Web developer to change the authentication method (but how???)
make the windows authentication work on the server (this would probably require that mannamgement studio express connects to the remote database. (Same problem as no 1)

Help will be higly appreciated.


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Setup And Upgrade :: Windows Authentication Not Working After Password Change?

Apr 29, 2015

This morning I attempted to connect to my local copy of SQL Server (2012) (Win 7) using Windows Authentication. I was unable to do so and per the error log it was due to error 18456 (invalid credentials).

Yesterday I changed my windows password. Is it possible for this to be the cause?

FYI, following is from the error logs:

2015-04-27 10:10:32.98 Backup BACKUP DATABASE successfully processed 0 pages in 0.451 seconds (0.000 MB/sec).2015-04-28 00:00:41.90 spid18s This instance of SQL Server has been using a process ID of 2096 since 4/21/2015 9:08:05 AM (local) 4/21/2015 1:08:05 PM (UTC). This is an informational message only; no user action is required.2015-04-28 09:58:51.16 Logon Error: 18456, Severity: 14, State: 38.2015-04-28 09:58:51.16 Logon Login failed for user 'NT AUTHORITYSYSTEM'. Reason: Failed to open the explicitly specified database 'model'. [CLIENT:]2015-04-28 17:09:59.87 Server  SQL Server is terminating because of a system shutdown. This is an informational message only. No user action is required.

The logs showed the error occurred yesterday (4/28) which is about when I changed my password. The 17:09 log (last one) is when I shut down my computer.  Note that I was logged into SQL Server when I changed my Windows password and worked with it several times through out the day.

Also, per the configuration manager SQL Server (MSSQLSERVER) (and all other services) is stopped and I was unable to start it ("The request failed or the service did not respond in a timely fashion).

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Web Part Deserialization Error When Trying To Change Report Viewer Web Part Programmatically.

Oct 29, 2007

I have SSRS 2005 SP2 configured to work in Sharepoint integration. Everything works fine except that I am not able to programmatically change any property of report viewer web part (instance) that I have added on on home page of my sharepoint site.
I can do same thing via sharepoint UI but not through program. When my programs runs it fetches all web parts been added on home page, then I need to iterate through each one and find report viewer web part.
While iterating, as soon as I arrive to report viewer web part it is named as "Error web part" with error message as
"Windows SharePoint Services cannot deserialize the Web Part. Check the format of the properties and try again"

If someone has a solution, please respond at your earlist.



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Recovery :: Change Authentication Mode From Windows To Mixed / 4-node Participating In AlwaysOn

May 13, 2015

I need to change the authentication mode from 'windows' to mixed, its a 4-node participating in always-on... Will this brake/impact alwayson in any way? I know I have to restart the sql instance.

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SQL Server Authentication Vs Windows Authentication

Oct 16, 2006

Would anyone please help me out here. which of the 2 modes of authentication is better and why??

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Windows Authentication Vs SQL Server Authentication

Mar 12, 2008

For using different services of SQL SERVER 2005 which is better...
Windows Authentication or SQL Server Authentication?
what are the advantages and disadvantages of both?

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Report Manager With Forms Authentication. Report Server With Windows Authentication.

Feb 1, 2008


I wonder if it is possible to set forms authentication for report manager but leave report server "as it is". I need to authenticate users from external LDAP and can't use windows authentication for report manager, but I would also like to leave report server open for anonymous users. In that way authenticated administrators could create reports which anonymous users could read.

I tested the Security Extension Sample and got it working when I rewrote the authentication part with my own LDAP authentication.

If I have understood correctly, the report manager is just application inside report server so is it possible to use forms authentication with one application but still leave the report server with Windows authentication?

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NT Authentication / SQl Server Authentication

Aug 14, 2001


I need to figure out what kind of Authentication , I need to use for following applicaiton

Product : -

1 ) It resides on a its Domain and has access to Database on that Domain.
2 ) We have a application level login , n based on application login id
display specific pages.

The question that bother me is this

Q ) If i use NT authentication , then a user will be required to

a ) Login to domain (with userid and password) first and then

b ) Then i would require to again login to applicaiton with application
level login and password.(different levels of login as there)
Based on the application level login i will display only specific
asp pages. They have different access rights..and roles.

Requirment is to login only once..and it should authenticate to application display specific pages and authenticate to SQl server database also..

Is there any way thru which i can map my application level login to SQl server.. and what authentication should i use..


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SQL Sever 2005 Express Move Windowns Authentication Choice To Mixed Authentication

Aug 22, 2007

I folks.I Have installed sql server 2005 express and choosed windowsauthentication on instalation, but i make a mistake and now i needmixed authentication, how can i modify this whithout uninstall andinstall again the application?thanks for the help.

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How To Give Authentication For Send Mail Task Component? [not Default Windows Authentication]

May 11, 2007

How to give authentication for Send Mail Task component?

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Switching SQL 2005 Authentication Mode From Windows To SQL Authentication

Apr 18, 2007

Hi there,I have installed MS SQL Server 2005 on my machine with windows authentication. But now I want to switch the authentication mode to SQL Authentication. I am unable to switch, I can’t find the proper way to do so here in 2005.Could any one help me in doing this?Thank you,-Ahsan

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How Can I Connect To SQL Server 2005 Analysis Services Server Programmatically?

Jun 9, 2006

Hi, all here,

Would please anyone here give me any idea about how can I connect to SQL Server 2005 analysis services server and send XML request to it programmatically (with Business intelligence development studio in SQL Server 2005)? Thanks a  lot.

With best regards,

Yours sincerely,

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How To Create A New DB On A Remote Server Programmatically?

Jan 26, 2008

my domain is hosted on a remote server
related databases are stored on a seperated DataServer
I have the name of that DataServer
and i need to create new DBs programmatically
I use this statement on my local machine 
sqlstat= "CREATE DATABASE dbc_" + dbid + " ON PRIMARY" + "(Name=db_" + dbid + ", filename = '" & Server.MapPath("~/app_data") & "" + dbfilename + "')"
but it will not work , because i dont know the physical path
i cant use Server.MapPath()
How could i do?

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