Any Improvements To This: Cannot Apply Value Null To Property Login: Value Cannot Be Null.

Mar 26, 2007

Looks like there was a fix and then I read this fix is not a fix. Does anyone know how this can be rectified? Does it mean that only Windows authentiation is the only way it works. The Software is over 2 years old, there are no excuses.

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Hotfix For Cannot Apply Value Null To Property Login Error Available?

Feb 24, 2006

It appears that Microsoft has fixed the "Cannot apply value null to property Login" bug in SSIS, according to this web page:

Click here for bug details

Question: is there a hotfix available for download?



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Problem With Isnull. Need To Substitute Null If A Var Is Null And Compare It To Null And Return True

Sep 20, 2006

Hey. I need to substitute a value from a table if the input var is null. This is fine if the value coming from table is not null. But, it the table value is also null, it doesn't work. The problem I'm getting is in the isnull line which is in Dark green color because @inFileVersion is set to null explicitly and when the isnull function evaluates, value returned from DR.FileVersion is also null which is correct. I want the null=null to return true which is why i set ansi_nulls off. But it doesn't return anything. And the select statement should return something but in my case it returns null. If I comment the isnull statements in the where clause, everything works fine. Please tell me what am I doing wrong. Is it possible to do this without setting the ansi_nulls to off??? Thank you

set ansi_nulls off


go

declare

@inFileName VARCHAR (100),

@inFileSize INT,

@Id int,

@inlanguageid INT,

@inFileVersion VARCHAR (100),

@ExeState int

set @inFileName = 'A0006337.EXE'

set @inFileSize = 28796

set @Id= 1

set @inlanguageid =null

set @inFileVersion =NULL

set @ExeState =0

select Dr.StateID from table1 dR

where

DR.[FileName] = @inFileName

AND DR.FileSize =@inFileSize

AND DR.FileVersion = isnull(@inFileVersion,DR.FileVersion)

AND DR.languageid = isnull(@inlanguageid,null)

AND DR.[ID]= @ID

)

go

set ansi_nulls on

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1) Null Value In Foreign Key 2) Extra Value To Indicate All The Values In PK Table Apply

Feb 27, 2007

I have two tables  1) tblCustomer (ID, Name, City)  2) tblemp (ID, NAME, Dept.ID, tblcustomer.ID)
Both the tables have ID as PKA emp can be either assigned a) All customers b)single customer c) NO customer
Pls note:- there will never be 2 or 3 customer linked to emp (my actuall requirement tables are different but to explain i am using the above tables)
I know how to assign single customer......but had problem how to link all customers and "no customer"
Please tell me if the following solution is right?1) I will manually insert a record in tblCustomer with id 0 as " all customers" and will not allow the user to delete it 2) store null in FK if it is "no customer"
Also please tell me is it ok to store one more value in tblCustomer as -1 and take it as "No customer"
I have a DDL in the Employee page which should be displaying the names of allthe customers with 2 extra values "ALL CUSTOMERS" and "SELECT"  Select is the default value in DDL which says "NO CUSTOMER" selected yet
Thank youSara

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SQLCommand's Transaction Property Goes Null On Failure

Sep 20, 2007

I've written some provider independent code that dynamically generates and loads DbCommands with data via Parameters and executes them within a transaction. Everything works fine until an exception occurs and then the DbCommand.Transaction property that was set goes to null,  effectively killing any chance of rolling back the transaction. I've noticed this only happens when the executed command is of type SqlCommand. The OracleCommand mainitains its link to the set transaction of failure. Upon further investigation, I found that this only occurs when parameters are used but not if I dynamically generate the insert statement as a string.. For instance:SqlConnection conn = new SqlConnection(connectionString);conn.Open();SqlTransaction transaction = conn.BeginTransaction();SqlCommand comm = new SqlCommand();comm.Connection = conn;comm.Transaction = transaction; command.commandText = "INSERT INTO Table1 Values (1, 2, 3)";command.ExecuteNonQuery(); If I execute that and it fails the command.Transaction property will remain set to transaction, but in this scenario: SqlConnection conn = new SqlConnection(connectionString);conn.Open();SqlTransaction transaction = conn.BeginTransaction();SqlCommand comm = new SqlCommand();comm.Connection = conn;comm.Transaction = transaction; comm.commandText = "INSERT INTO Table1 Values (@Col1,@Col2, @Col3)";comm.Parameters.add(new SqlParameter("@Col1", 1); comm.Parameters.add(new SqlParameter("@Col2", 2);comm.Parameters.add(new SqlParameter("@Col3", 3); comm.ExecuteNonQuery(); Upon failing the comm.Transaction property gets somehow goes null and the Connection property of the transaction object also goes null.Any ideas on why this only happens with a SqlCommand but no other DbCommand?      

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Reporting Services :: Give Meaning Full Name To Allow Null Value Check Box In Report Parameter Instead Of NULL?

Oct 20, 2015

In my report i have CNAME parameter , which allows null value. I checked Allow null value check box in report parameter properties.

when i preview the report , it displays checked NULL check box beside CNAME parameter . I want to give some meaningful name(i.e.ALLCustomers) to this checkbox instead of NULL. 

Is it possible through SSRS designer?

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Login Failed For User '(null)'.

Aug 1, 2007

 I have an issue dealing with connectivity between the client and Sql Server Services or Sql Authentication. I keep receiving this type of error message:Login failed for user '(null)'. Reason: Not associated with a trusted SQL Server connection.
I am sure my connection string is correct within my web config file, I have something like this:Data Source=myServerAddress;Initial Catalog=myDataBase;Integrated Security=SSPI;
The reason why I think the connection string is correct is because I have a server where my asp.net application is stored and used, this server is called server1. Server1 is connected to MS-SQL server that is installed and used on server2. When I run my application from server1 everything is perfect, nothing goes wrong, but when I run the application from my client or local machine I get the error message saying not associated with a trusted site.
Now I have the web config set to <identity impersonate="true"> that will allow windows Authentication, and I set the permissions within the database to use NT AUTHORITY NETWORK SERVICE as a user, plus my own network credentials are set within user on the database,  just so I could troubleshoot the problem. But I still get the error message not associated with a trusted site.
Just to recap my problem, I can see the data when I run the application in Server1, but I can't see the data when I run the application from my local machine. http://server1/MyApplication.aspx <-- this is an example of the url that I enter on my local machine to acces the application. Plus I have full acces to server1, and other application are running just fine from this server.
I am using visual studio 2005, but using sql 2000, with the latest service pack for windows XP pro.
 
thanks,
xyz789
 
 

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Login Failed For User '(null)'

Jan 5, 2004

I am creating a Data Web Form using the Data Form Wizard.
After configuring a valid connection to a SQL Server on my network, I receive the following error when trying to run the page: "Login failed for user '(null)'. Reason: Not associated with a trusted SQL Server connection."
Any ideas?

Thanks,
Mark

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Login Failed For User '(null)'

Mar 31, 2006

Any users out there  resolve this one.  Thanks in advance!Login failed for user '(null)'. Reason: Not associated with a trusted SQL
Server connection. Description:
An unhandled exception occurred during the execution of the current web
request. Please review the stack trace for more information about the error and
where it originated in the code. Exception Details:
System.Data.OleDb.OleDbException: Login failed for user '(null)'. Reason:
Not associated with a trusted SQL Server connection.Source Error:




An unhandled exception was generated during the execution of the
current web request. Information regarding the origin and location of the
exception can be identified using the exception stack trace below.
Stack Trace:



[OleDbException (0x80004005): Login failed for user '(null)'. Reason: Not associated with a trusted SQL Server connection.] System.Data.OleDb.OleDbConnectionInternal..ctor(OleDbConnectionString constr, OleDbConnection connection) +1054593 System.Data.OleDb.OleDbConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningObject) +53 System.Data.ProviderBase.DbConnectionFactory.CreateNonPooledConnection(DbConnection owningConnection, DbConnectionPoolGroup poolGroup) +27 System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +47 System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +105 System.Data.OleDb.OleDbConnection.Open() +37 System.Data.Common.DbDataAdapter.FillInternal(DataSet dataset, DataTable[] datatables, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) +121 System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, Int32 startRecord, Int32 maxRecords, String srcTable, IDbCommand command, CommandBehavior behavior) +137 System.Data.Common.DbDataAdapter.Fill(DataSet dataSet, String srcTable) +83 System.Web.UI.WebControls.SqlDataSourceView.ExecuteSelect(DataSourceSelectArguments arguments) +1770 System.Web.UI.DataSourceView.Select(DataSourceSelectArguments arguments, DataSourceViewSelectCallback callback) +17 System.Web.UI.WebControls.DataBoundControl.PerformSelect() +149 System.Web.UI.WebControls.BaseDataBoundControl.DataBind() +70 System.Web.UI.WebControls.GridView.DataBind() +4 System.Web.UI.WebControls.BaseDataBoundControl.EnsureDataBound() +82 System.Web.UI.WebControls.CompositeDataBoundControl.CreateChildControls() +69 System.Web.UI.Control.EnsureChildControls() +87 System.Web.UI.Control.PreRenderRecursiveInternal() +41 System.Web.UI.Control.PreRenderRecursiveInternal() +161 System.Web.UI.Control.PreRenderRecursiveInternal() +161 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +1360

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Trusted_connection=true, Login '(null)'

Mar 31, 2006

When accessing a web application from an intranet....
And the web app tries to make a connection to a 'SQL Server' using the sqlconnection where does ASP.NET grab user credentials?
My webpage displays web security.principal.windows.getcurrent = domainUser  (displays the correct information).
But the connection to sql says Null.  Where is ASP.NET grabbing (retrieving) this information from?
Thanks,

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Login Failed For User Null

May 17, 1999

SQL7 server is configured to use both SQL and NT authentication. Periodically, NT authenticated users get the error "Login failed for user '(null'. Reason: Not associated with a trusted SQL Server connection."
Repeating the login will eventually end in success.
Microsoft article Q216848 indicates this has something to do with the version of MDAC.

We have not changed the version of MDAC on the server, but checked it and the versions are as the article states (MDAC 2.1 & SQL Driver 3.70.623).

We had a newer version on the client, but went back to the version above that came on the SQL7 CD with no luck.

Any ideas, suggestions, or similar problem experienced?

Thanks in advance.

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...Login Failed For User (null)...

Sep 8, 2003

When I try to open up a table in EM I get the msg of ...Login failed for user (null)...which is me

it looks like my sid has become null...Im the system admin...do I use the procedure 'sp_change_users_login'
I tried reading up on this procedure, but BOL was not very clear.

How would I go about getting my sid back ?

thanks

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Login Failed For User '(null)'

Apr 20, 2006

Need help for this error ---- [Microsoft][ODBC SQL Server Driver][SQL Server]Login failed for user '(null)'. Reason: Not associated with a trusted SQL Server connection.

while accessing vb6 datareport through citrix client which is accessing sql2000 I got the above error msg.

vb6 datareport use the oledb provider for odbc driver with dsn for connection.It is working fine if run it locally and problem occured only through citrix client.

Thanks in advance for help.

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Null User Login Failed

Dec 21, 2006

I'm new to Crystal Reports and ASP and I'm sure i'm missing something simple here.

I've got a SQL server database, A Crystal Report, a VB application and an ASP Application

In the VB app i call the crystal report and log on to the database with the intergrated security

However in the ASP app i try the same and it has me log on as a null user.

what have i forgotten to do that will let the intergrated security work between SQL Server and ASP

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Login Failed For User '(null)'.

Mar 6, 2007

I recieved this error in my logs:

Login failed for user '(null)'. Reason: Not associated with a trusted SQL Server connection.

It appeared nearly 20 times, then about 30 minutes after the first occurence, I noticed in my Event Viewer this error:

The registration of DNS name XXX.XXX.XXX.XX.in-addr.arpa. for network name resource 'SQL Network Name(SQLServer)' failed for the following reason:

DNS operation refused.

After that I began recieving hundreds of errors like this one:

Login failed for user 'SQL user'. Only administrators may connect at this time.

I was unable to connect to the server to see what was going on so I had to failover the server. That's why my troubleshooting is limited to error logs. After the failover, everything came up fine with no more errors. Has anyone ever encountered this before?

BTW, This is a SQL 2000 Cluster on Windows 2000.

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Login Failed For User 'null'

Aug 26, 2005

Hello,I have problem with linked servers (MS SQL Server 2k)- when I try to executequery(update, insert..) with linked servers, I have message Login failed foruser 'null'. This is very strange problem, some computers in AD (2k3 std)don't have this error, when the other have this problem for few hours andsome have this error all the time. Network Protocols is TCP/IP.Any idea ?

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Login Failed For User '(null)'

Jan 17, 2007

Hi,

I am using a Third Party software which depends on my SQL Server 2000 for storing data. When I use Windows Security in my Third Party software, I get the following message in the event viewer of my SQL Server 2000.

Description:

18452:
Login failed for user '(null)'. Reason: Not associated with trusted SQL Server connection.

When I user SA, I do not get the above error.

Any clarifications on the possibilites for getting the error is appreciated.
Also let me know if we can overcome the error without using SA.

I tried the article in http://support.microsoft.com/kb/840219. But it didn't make a difference.

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Login Failed For User '(null)'

Feb 21, 2007

Hi.

Im trying to make a couple of reports online for other people. My current setup is:

Machine A: SQL05 server.
Machine B: ReportingServer05 and IIS 5.0 (XP machine).
Machine C: Client trying to connect to Machine B and view a report. (Windows 2003)

On Machine B everything is working just fine, i can view my reports without any problems.
But if i try viewing a report on Machine C, I get the following error:

An error has occurred during report processing. (rsProcessingAborted) Get Online Help
Cannot create a connection to data source 'IntegrationDB'.
(rsErrorOpeningConnection) Get Online Help
Login failed for user '(null)'. Reason: Not associated with a trusted SQL
Server connection.
But machine C kan browse http://machine-b/ReportServer and se the list of reports hosted, its when trying to generate the reports there is a problem. Im logged in on machine C with the same user as on Machine B.

My Shared Data Source in this VS05 project is setup to be using Integrated Security, so the "user '(null)'" part looks like Machine C dosnt supply the username, but why?

What is it that im missing in my configuration?
And any addional information needed?

Best Regards.
Lasse Stig Thomsen

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Login Failed For User '(null)'

Aug 7, 2007

Hi,

(First, I should explain that I am not sure whether this is the right part of the forum for this message. My apologies if I'm in the wrong place. If this is the case, could you please let me know where this post should be? Thank you.)

I have a vew that accesses data from a linked server. The view works properly in Query Analyzer but fails when run by a .Net application. The message returned is:

Login failed for user '(null)'. Reason: Not associated with a trusted SQL Server connection.

The linked server has the following attributes:

Server Type: SQL Server
Security: No local logins listed. Connections are made using the login's current security context.

Any help would be appreciated. Thank you.

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Login Failed For User '(null)'.

Jan 23, 2008

I've read quite a few articles about resolving this login problem. "Login failed for user '(null)'. Reason: Not associated with a trusted SQL Server connection. " But still can't solve mine.

I am working on a Website that can access a remote database engine which locates in the same domain. (Eventually the website and the db server would be on the same computer, but not during the development and testing.)

My code works fine when I am debugging on an ASP.NET Development Sever. I tried two users account, Windows' or SQL Server's. Both work fine under ASP.NET development server (run ASP.NET application locally).

But when I run the website from wwwroot virtual path, it throws error message:

"Login failed for user '(null)'. Reason: Not associated with a trusted SQL Server connection."

Why does it this happen? And how to resolve this? Did I miss anything on local IIS side or the remote DB server?

Thanks.
Q.

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Login Failed For User '(null)'

Dec 18, 2006

I get the following error in the SQL Logs.

What does this error mean and how can I resolve this?

18452 :
Login failed for user '(null)'. Reason: Not associated with a trusted SQL Se
rver connection.

Thanks

Santhosh

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Integration Services :: SSIS Insert Non Null Value Into Null Rows

Jul 15, 2015

I have a flat file with the following columns

SampleID   Rep_Number   Product  Protein   Fat   Solids

In the flat file SampleID and Product are populated in the first row only, rest of the rows only have values for Rep_Number, Protein, Fat, Solids.

SampleID and Product are blank for the rest of the rows. So my task is to fill those blank rows with the first row that has the sampleID and Product and load into the table.

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Login Failed For User NULL - Not Trusted...

Aug 7, 2006

All,

In Microsoft analysis services, I get an error that login fails for user "NULL" when I try to process/build any cubes. If I edit the connection properties, it says to use "trusted" signon. If I press the "test connection" button all is well.

I definitely have serverdatabase access otherwise. Any thoughts/insights?

Thanks,

Isaac

ps: this is a sql server 2000 version of MSAS. Corresponding sql server is 2000 as well.

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Subscription Issue With Null Default Parameter - Key Cannot Be Null

May 3, 2007

I have a report that is run on a monthly basis with a default date of null. The stored procedure determines the month-end date that it should use should it be sent a null date.

The report works fine when I tell it to create a history entry; however, when I try to add a subscription it doesn't appear to like the null parameter value. Since I have told the report to have a default value of null it doesn't allow me to enter a value on the subscription page.

Now, I suppose I could remove the parameter altogether from the stored proc, but then the users would never be able to run the report for a previous time period. Can someone explain to me why default values aren't allowed to be used on subscriptions when they seem to work fine for ad hoc and scheduled reports? This is really quite frustrating as most of my reports require a date value and default to null so that the user doesn't have to enter them for the latest data.



An internal error occurred on the report server. See the error log for more details. (rsInternalError) Get Online Help




Key cannot be null. Parameter name: key

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Returned SQLParam.SqlValue Is {Null} But Can't Test For Null?

Nov 5, 2007

I run a stored procedure for which I have a return variable. The stored procedure returns the ID of a row in a table if it exists:

m_sqlCmd.ExecuteScalar();

The m_sqlCmd has been fed an SQLParameter with direction set to output.
When the stored proc returns, I want to test it. Now when there IS a row it returns the ID ok.
When the row doesn't exist, in my watch I have:

m_sqlParam.SqlValue with value {Null}

I can't seem to work out how to test this value out.
I've tried several things but none seem to work.

This line compiles ok, but the following runs into the IF statement as if the SqlValue is null??

if (m_sqlParam.SqlValue != null)....
{

// I'm here!! I thought the watch says this is null???
}

Sorry if this is obvious, but I can't work this one out!!

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Cannot Insert The Value NULL Into Column 'OrderID' -- BUT IT IS NOT NULL!

Apr 2, 2007

I am getting this error: "Cannot insert the value NULL into column 'OrderID', table 'outman.outman.Contact'; column does not allow nulls. INSERT fails." -- But my value is not null. I did a response.write on it and it show the value. Of course, it would be nice if I could do a breakpoint but that doesn't seem to be working. I'll attach a couple of images below of my code, the error, and the breakpoint error.
 

 
 

Server Error in '/' Application.


Cannot insert the value NULL into column 'OrderID', table 'outman.outman.Contact'; column does not allow nulls. INSERT fails.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. Exception Details: System.Data.SqlClient.SqlException: Cannot insert the value NULL into column 'OrderID', table 'outman.outman.Contact'; column does not allow nulls. INSERT fails.Source Error:



Line 89: sContact.Phone = sPhone.Text.Trim
Line 90: sContact.Email = sEmail.Text.Trim
Line 91: sContact.Save()
Line 92:
Line 93: Dim bContact As Contact = New Contact()Source File: F:InetpubwwwrootOutman KnifeCheckout.aspx.vb    Line: 91 Stack Trace:



[SqlException (0x80131904): Cannot insert the value NULL into column 'OrderID', table 'outman.outman.Contact'; column does not allow nulls. INSERT fails.]
System.Data.SqlClient.SqlConnection.OnError(SqlException exception, Boolean breakConnection) +857354
System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +734966
System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) +188
System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) +1838
System.Data.SqlClient.SqlDataReader.HasMoreRows() +150
System.Data.SqlClient.SqlDataReader.ReadInternal(Boolean setTimeout) +214
System.Data.SqlClient.SqlDataReader.Read() +9
System.Data.SqlClient.SqlCommand.CompleteExecuteScalar(SqlDataReader ds, Boolean returnSqlValue) +39
System.Data.SqlClient.SqlCommand.ExecuteScalar() +148
SubSonic.SqlDataProvider.ExecuteScalar(QueryCommand qry) +209
SubSonic.DataService.ExecuteScalar(QueryCommand cmd) +37
SubSonic.ActiveRecord`1.Save(String userName) +120
SubSonic.ActiveRecord`1.Save() +31
Checkout.btnCheckout_Click(Object sender, EventArgs e) in F:InetpubwwwrootOutman KnifeCheckout.aspx.vb:91
System.Web.UI.WebControls.Button.OnClick(EventArgs e) +105
System.Web.UI.WebControls.Button.RaisePostBackEvent(String eventArgument) +107
System.Web.UI.WebControls.Button.System.Web.UI.IPostBackEventHandler.RaisePostBackEvent(String eventArgument) +7
System.Web.UI.Page.RaisePostBackEvent(IPostBackEventHandler sourceControl, String eventArgument) +11
System.Web.UI.Page.RaisePostBackEvent(NameValueCollection postData) +33
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +5102



Version Information: Microsoft .NET Framework Version:2.0.50727.42; ASP.NET Version:2.0.50727.42

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Help Altering Database Table From NULL To NOT NULL

Jun 28, 2004

I would drop and add the table but the data can't be deleted. So if anyone could help with the statement it would be greatly appreciated. Thanks

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Sp_option... 'concat Null Yields Null'

Feb 26, 2004

I'm trying to set the concat... option to OFF
all the time and in all my databases

I tried this command

USE master
EXEC sp_dboption 'DatabaseName', 'concat null yields null', 'FALSE'

but it doesn't change anything

Select NULL + 'TOTO'
----> NULL

(it should be 'TOTO')

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Change Not Null To Null, Default Value To Empty

Aug 3, 2005

hi,my structure table in database:Amount float(53) not null default 0when i try to run his script:alter table ABC alter column Amount float(53) nullit can only set the Amount to allow null, but can't set the defaultvalue to empty.anyone know how to set the field to allow null and default set toempty, no value.thanks

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DB Engine :: Not Able To Make Column To Null Value From Not Null

May 13, 2015

It's giving me an error while I'm trying to change column value from not null to null..

'tblid' table
- Unable to modify table.  

Cannot insert the value NULL into column 'ValidID', table 'Xe01.dbo.Tmp_tblid'; column does not allow nulls. INSERT fails.

The statement has been terminated.

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WITH RETURNS NULL ON NULL INPUT Not Working?

May 3, 2006

Hello.

I've built a sample CLR function with the following declaration....

CREATE FUNCTION GetManager(@DeptCode nvarchar(3))
RETURNS nvarchar(1000)
WITH RETURNS NULL ON NULL INPUT
AS
EXTERNAL NAME Assembly1.[ClassLibrary1.MyVBClass].MyManager

And it works as expected, except when I use NULL:

DECLARE @MyManager nvarchar(1000)
EXEC @MyManager = dbo.GetManager NULL
PRINT @MyManager

It returns the value "Unknown" as it would have for any unknown DeptCode, as-programmed.

I'm of the theory it should have returned NULL without actually firing the function? Or is this only for non-CLR items... or stored procedures, not functions?

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Transact SQL :: Database Null Value And String Null

Oct 27, 2015

We have a case where in we should show date based on conditions for e.g if we had a column defined as

col varchar(10) then we would show col as 'NULL' for some condition and actual value when no condition

Normaly date values are stored here e.g under col 20150901 .

Case 
when col>'20150901' then 'NULL'
else col
end as Derivedcol

Note this is an extract process and we are presenting data by pumping the data in a table .

Now there is another similar column -colz varchar(10)  which stores date but doesnt have case condition so whenever date has no value its shows null which is database null.

So whats the difference between database null and string null ?

 How can we show database null for the case condition instead of string "null"?

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Login Failed For User '(null)' Error When Opening A SQL Connection

Jan 16, 2005

Hello everyone. I'm very new to asp.net. I've been coding in vb.net for a while now (getting my associates degree in desktop application programming) and my boss wants all of my new applications to be web based now. Well, i decided to take some initiative on this and begin a new project for my department. This is a very small project. So far, everything is coming along alright (i found an eBook that's helped me quite a bit). Everything was cool until yesterday when i tried to connect to our sql server database. I get an error message stating:

Login failed for user '(null)'. Reason: Not associated with a trusted SQL Server connection.

Because i'm testing this on my system as well as the remote system which hosts the application, i can see the error message on the remote system. Here is the error it's giving me:

Server Error in '/' Application.
--------------------------------------------------------------------------------

Login failed for user '(null)'. Reason: Not associated with a trusted SQL Server connection.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.

Exception Details: System.Data.SqlClient.SqlException: Login failed for user '(null)'. Reason: Not associated with a trusted SQL Server connection.

Source Error:


Line 57: sConnString = "Server=F11602A2120564OPS;Initial Catalog=OpsMonitor;User ID='public';Password=;Integrated Security=SSPI;"'Connection String
Line 58: sConn = New SqlConnection(sConnString)'Initialize New Connection
Line 59: sConn.Open'Open the connection
Line 60: End Sub
Line 61: </script>

Source File: c:inetpubwwwrootatm_reporting.aspx Line: 59

Stack Trace:

[SqlException: Login failed for user '(null)'. Reason: Not associated with a trusted SQL Server connection.]
System.Data.SqlClient.ConnectionPool.GetConnection(Boolean& isInTransaction) +474
System.Data.SqlClient.SqlConnectionPoolManager.GetPooledConnection(SqlConnectionString options, Boolean& isInTransaction) +372
System.Data.SqlClient.SqlConnection.Open() +383
ASP.atm_reporting_aspx.OpenConn() in c:inetpubwwwrootatm_reporting.aspx:59
ASP.atm_reporting_aspx.Page_Load(Object Src, EventArgs E) in c:inetpubwwwrootatm_reporting.aspx:23
System.Web.UI.Control.OnLoad(EventArgs e) +67
System.Web.UI.Control.LoadRecursive() +35
System.Web.UI.Page.ProcessRequestMain() +731

You can see my SQL Connection string in there as well. Can someone please help me with this? I can post the code to the entire page as well if that would help. I'm developing this with Dreamweaver MX 2004 (i like dreamweaver MUCH better than visual studio, especially for web design/development). Thanks,

Eric

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