SqlParameter Null Value

Jun 16, 2006

I'm using parameters to record into database like:

SqlParameter paramId_empresa = new SqlParameter("@Id_empresa", SqlDbType.Int, 4);

paramId_empresa.Value = idEmpresa;

myCommand.Parameters.Add(paramId_empresa);

And set sql server field to allow null values and default value as (null)

Trouble is I'm getting an Input string was not in a correct format. when the field is blank

Line 182:
Line 183: myConnection.Open();
Line 184: myCommand.ExecuteNonQuery();
Line 185: myConnection.Close();
Line 186: }

 

Thanks a lot for any help

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ADO.NET, SqlParameter, And NULL

Feb 13, 2007

Im trying to execute the following:mySqlCmd.Parameters.Add("@Parent_ID", SqlDbType.Int).Value = (sectionUpdate.iSection.ParentID == 0 ? DBNull.Value : myParentID); However i get an error that Null cant be converted to Int.  Is there any way i can uyse the SqlParameters approach but pass in a Null value for the field or must i wrap the entire connection within a IF/ELSE statement one containing a hard-coded NULL within the query and the other as a standard parameter with a proper int value? Thanks 

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Jun 20, 2006

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Jul 10, 2004

Hi,

I am getting the following error:

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If I could work out what code to post I would, but I can say that I am managing my Sql data in my code by caching small arrays of SqlParameter objects as pulled from the database. If I need to update the DB I change the cached SqlParameter and re-insert it. If I perform a SELECT I check the cache first to see if I already have the SqlParameter.
However, currently, I am experiencing the above error when performing a select, then later an update, followed by another update.
Would I be correct in saying that a SqlParameter object can only be used once for a database operation and should be discarded? Would I be correct if I said that the SqlCommand object should be discarded? I am barking up the wrong tree entirely?

Distressed in DBLand,
Matt.

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Is it possible to have a SqlParameter setup as an Output, and get it to return @@Identity without using a stored procedure?

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hi
I am creating a stroed procedure which suppose to update an image column of the given row. I have created the same procedures before which worked fine with texts and numbers but not with Images.
this procedure get table name,row Id, column name of the image, and image data. like:


Create PROCEDURE [dbo].[spImageUpd]

(

@TableName varchar(100),

@Id int,

@ImageColName nvarchar(100),

@ImageData image

)
begin
??????
end

I tryed to use
set @sql='update '+ @TableName+ ' set '+@ImageColName + '=' + @ImageDt' + ' where Id='+ cast(@Id as nvarchar(10))
EXEC sp_executesql
@query = @sql,
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thank you in advance
regards

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Aug 2, 2006

I am just learning ASP.net,  been reading over data grids but I am having a tough time understanding what the parameter line would be used for.  I have read the MSDN regarding parameters, they seem to make sense.  But the whole System.Byte(0) I cannot understand.
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sqlUpdateCommand1.Parameters.Add(new SqlParameter("@Original_SSN", SqlDbType.VarChar, 11, ParameterDirection.Input, false, ((System.Byte)(0)), ((System.Byte)(0)), "SSN", DataRowVersion.Original, null));
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Feb 6, 2005

Below I have pasted the error message, hidden form fields, function code and even the stored procedure code. I'd be most grateful if anyone can show me the error of my ways!

Thanks,
theSpike

I'm calling a stored procedure and besides several varchar fields, I'm passing two integer values (employeeID and businessID). These values come from hidden fields on a form and it's the businessID that throws the format error. I call the same stored procedure for both insert and update (the SP evaluates employeeID to decide btwn insert/update) and the insert works perfectly, but the update throws the format exception error. The only difference is that the employeeID is 0 (zero) for an insert and > 0 when it's updating. I strikes me as particularly bizzare that the line that throws the exception is the businessID, not the employeeID because the businessID is the same value for both insert and update. It's the employeeID that is subject to change.


The error:
Exception Details: System.FormatException: Input string was not in a correct format.

Source Error:

Line 147: //businessID
Line 148: SqlParameter businessID = new SqlParameter("@businessID",SqlDbType.Int,4);
Line 149: businessID.Value = Convert.ToInt32(hdnBusinessID.Value);
Line 150: businessID.Direction = ParameterDirection.Input;
Line 151: theCommand.Parameters.Add(businessID);


I'm calling the SAME function for the insert and update, the same hiddent form fields exist
<input name="hdnBusinessID" id="hdnBusinessID" type="hidden" value="1" />
<input name="hdnEmployeeID" id="hdnEmployeeID" type="hidden" value="7" />
Here's the function that get's called:

void btnAddEmployee_Click(object sender, EventArgs e) {
int intNewEmployeeID;
string connectionstring = ConfigurationSettings.AppSettings["ConnectionString"];
SqlCommand theCommand = new SqlCommand();
theCommand.CommandText = "AMS_EmployeeSave";
theCommand.Connection = new SqlConnection(connectionstring);
theCommand.CommandType = CommandType.StoredProcedure;

// Add parameters to SqlCommand
//employeeID
SqlParameter empID = new SqlParameter("@employeeID",SqlDbType.Int,4);
empID.Value = Convert.ToInt32(hdnEmployeeID.Value);
empID.Direction = ParameterDirection.Input;
theCommand.Parameters.Add(empID);

//businessID
SqlParameter businessID = new SqlParameter("@businessID",SqlDbType.Int,4);
businessID.Value = Convert.ToInt32(hdnBusinessID.Value);
businessID.Direction = ParameterDirection.Input;
theCommand.Parameters.Add(businessID);

//title
SqlParameter title = new SqlParameter("@title",SqlDbType.Char,5);
title.Value = txtTitle.Text.ToString();
title.Direction = ParameterDirection.Input;
theCommand.Parameters.Add(title);

//firstname
SqlParameter firstName = new SqlParameter("@firstName",SqlDbType.VarChar,25);
firstName.Value = txtFirstName.Text.ToString();
firstName.Direction = ParameterDirection.Input;
theCommand.Parameters.Add(firstName);

//middleName
SqlParameter middleName = new SqlParameter("@middleName",SqlDbType.VarChar,15);
middleName.Value = txtMiddleName.Text.ToString();
middleName.Direction = ParameterDirection.Input;
theCommand.Parameters.Add(middleName);

//LastName
SqlParameter lastName = new SqlParameter("@lastName",SqlDbType.VarChar,25);
lastName.Value = txtLastName.Text.ToString();
lastName.Direction = ParameterDirection.Input;
theCommand.Parameters.Add(lastName);

//suffix
SqlParameter suffix = new SqlParameter("@suffix",SqlDbType.Char,5);
suffix.Value = txtSuffix.Text.ToString();
suffix.Direction = ParameterDirection.Input;
theCommand.Parameters.Add(suffix);

//email
SqlParameter email = new SqlParameter("@email",SqlDbType.VarChar,80);
email.Value = txtEmail.Text.ToString();
email.Direction = ParameterDirection.Input;
theCommand.Parameters.Add(email);

//password
SqlParameter password = new SqlParameter("@password",SqlDbType.Char,20);
password.Value = txtPassword.Text.ToString();
password.Direction = ParameterDirection.Input;
theCommand.Parameters.Add(password);

//newEmployeeID output parameter
SqlParameter newEmployeeID = new SqlParameter("@newEmployeeID",SqlDbType.Int,4);
newEmployeeID.Direction = ParameterDirection.Output;
theCommand.Parameters.Add(newEmployeeID);

theCommand.Connection.Open();

theCommand.ExecuteNonQuery();

intNewEmployeeID = Convert.ToInt16(theCommand.Parameters["@newEmployeeID"].Value);

theCommand.Connection.Close();

if(intNewEmployeeID == -1){
lblSaveResult.Text = "There was a problem saving the employee information";
}
else if(hdnEmployeeID.Value == "0"){
lblSaveResult.Text = "New employee successfully added";
}
else{
lblSaveResult.Text = "Employee successfully updated";
}

lblSaveResult.Visible = true;

}



STORED PROCEDURE
CREATE PROCEDURE [dbo].[xxxx]
(@employeeID int,
@businessID int,
@title char(5),
@firstName varchar(25),
@middleName varchar(15),
@lastName varchar(25),
@suffix char(5),
@email varchar(80),
@password char(20),
@newEmployeeID int output)

AS

declare @alreadyExists int

-- passed in ID = 0 means they're adding a new employee so do insert
if @employeeID = 0
begin
select @alreadyExists = count(*) from dbo.AMS_employee where emp_email = @email
if @alreadyExists = 0
begin
insert into AMS_employee (emp_businessID, emp_title, emp_firstName, emp_middleName, emp_lastName, emp_suffix, emp_email, emp_password)
values (@businessID, @title, @firstName, @middleName, @lastName, @suffix, @email, @password)

select @newEmployeeID = @@identity
end

else -- there is already an employee with that email address
select @newEmployeeID = -1
end

-- passed in ID > 0 means they're updating existing employee so do update
else if @employeeID > 0
begin
update AMS_employee set
emp_title = @title,
emp_firstName = @firstName,
emp_middleName = @middleName,
emp_lastName = @lastName,
emp_suffix = @suffix,
emp_email = @email
where emp_ID = @employeeID

select @newEmployeeID = @employeeID

-- only update the password if it one was provided
if len(rtrim(@password)) > 0
begin
update AMS_employee set emp_password = @password where emp_ID = @employeeID
end

end
GO

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Hi,

i don't know if this is the right forum to post to, but here i go:

I'm having a problem...
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as far as i know, i can do this, either using a IN list:

- build and pass the list of id's from code to the sp:
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OR

- execute a simple delete several times.

So far i tried first option, but i get errors in converting the list to ints; that is what the sql engine says.
I prefer this option because i think is faster and requires less roundtrips to the sql server.

My questions are:
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2. is it worth to use a delete in a loop? the records that must be deleted are 5 at most, per job.
1 job can have [0..5] attachments.

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Mar 23, 2007

 Stored procedure:1 ALTER PROCEDURE [dbo].[insert_DagVerslag]
2 -- Add the parameters for the stored procedure here
3 @serverID int,
4 @datum datetime,
5 @ID int OUTPUT
6 AS
7 BEGIN
8 -- SET NOCOUNT ON added to prevent extra result sets from
9 -- interfering with SELECT statements.
10 SET NOCOUNT ON;
11 -- Insert statements for procedure here
12 BEGIN TRANSACTION
13 INSERT Log ( serverID, datum)
14 VALUES( @serverID, @datum)
15 COMMIT TRANSACTION
16 SET @ID = @@identity
17 END
18

 
Method who is calling the stored procedure and causes the error1 public void AddDagVerslag(Historiek historiek)
2 {
3 SqlConnection oConn = new SqlConnection(_connectionString);
4 string strSql = "insert_DagVerslag";
5 SqlCommand oCmd = new SqlCommand(strSql, oConn);
6 oCmd.CommandType = CommandType.StoredProcedure;
7 oCmd.Parameters.Add(new SqlParameter("@serverID", SqlDbType.Int)).Value = historiek.ServerID;
8 oCmd.Parameters.Add(new SqlParameter("@datum", SqlDbType.DateTime)).Value = historiek.Datum;
9 oCmd.Parameters.Add(new SqlParameter("@ID", SqlDbType.Int));
10
11 oCmd.Parameters["@ID"].Direction = ParameterDirection.Output;
12
13 try
14 {
15 oConn.Open();
16 int rowsAffected = oCmd.ExecuteNonQuery();
17 if (rowsAffected == 0) throw new ApplicationException("Fout toevoegen historiek");
18 oCmd.Parameters.Clear();
19 historiek.HistoriekID = System.Convert.ToInt32(oCmd.Parameters["@ID"].Value);
20
21 foreach (HistoriekDetail hDetail in historiek.LstHistoriekDetails)
22 {
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24 }
25 }
26 catch (Exception ex)
27 {
28 throw new ApplicationException("Fout toevoegen historiek : " + ex.Message);
29 }
30 finally
31 {
32 if (oConn.State == ConnectionState.Open) oConn.Close();
33 }
34 }

 
Whats going wrong, i've added the ID parameter my ParameterCollection... so why cant it be found

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SqlParameter With Parametername Is Not Contained By This SqlParameterCollection

Sep 19, 2007

Hello All, 
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When the app fails, this info is displayed:

Server Error in '/' Application.--------------------------------------------------------------------------------
An SqlParameter with ParameterName @createdby is not contained by this SqlParameterCollection. 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.IndexOutOfRangeException: An SqlParameter with ParameterName @createdby is not contained by this SqlParameterCollection.
Source Error:
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Source File: ...filename...    Line: 31
Stack Trace:
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eading.aspx.vb:31   System.Web.UI.WebControls.SqlDataSourceView.OnDeleting(SqlDataSourceCommandEventArgs e) +114   System.Web.UI.WebControls.SqlDataSourceView.ExecuteDelete(IDictionary keys, IDictionary oldValues) +682   System.Web.UI.DataSourceView.Delete(IDictionary keys, IDictionary oldValues, DataSourceViewOperationCallback callback) +75   System.Web.UI.WebControls.FormView.HandleDelete(String commandArg) +839   System.Web.UI.WebControls.FormView.HandleEvent(EventArgs e, Boolean causesValidation, String validationGroup) +556   System.Web.UI.WebControls.FormView.OnBubbleEvent(Object source, EventArgs e) +95   System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +35   System.Web.UI.WebControls.FormViewRow.OnBubbleEvent(Object source, EventArgs e) +109   System.Web.UI.Control.RaiseBubbleEvent(Object source, EventArgs args) +35   System.Web.UI.WebControls.LinkButton.OnCommand(CommandEventArgs e) +115   System.Web.UI.WebControls.LinkButton.RaisePostBackEvent(String eventArgument) +163   System.Web.UI.WebControls.LinkButton.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) +174   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +5102
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Here's the beginning of the stored procedure showing the parameters:

CREATE PROCEDURE [dbo].[reading_delete] @rid int,@createdby sql_variantASset nocount on;begin try...the procedural code...
Here's debugger capture, pointing to same issue:

System.IndexOutOfRangeException was unhandled by user code  Message="An SqlParameter with ParameterName @createdby is not contained by this SqlParameterCollection."  Source="System.Data"  StackTrace:       at System.Data.SqlClient.SqlParameterCollection.GetParameter(String parameterName)       at System.Data.Common.DbParameterCollection.get_Item(String parameterName)       at diabetes.reading.SqlDataSource1_Deleting(Object sender, SqlDataSourceCommandEventArgs e) in C:...    at System.Web.UI.WebControls.SqlDataSourceView.OnDeleting(SqlDataSourceCommandEventArgs e)       at System.Web.UI.WebControls.SqlDataSourceView.ExecuteDelete(IDictionary keys, IDictionary oldValues)       at System.Web.UI.DataSourceView.Delete(IDictionary keys, IDictionary oldValues, DataSourceViewOperationCallback callback)


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<InsertParameters>
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</InsertParameters>
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Dim sqlSelect As String
Session("Waste_Profile_Num") = 2
Session("Waste_Profile_Num2") = 5

sqlSelect = "SELECT Range, Concentration, Component_ID FROM Component_Profile WHERE (Waste_Profile_Num = " & Session("Waste_Profile_Num").ToString() & ")"
SqlDataSource1.SelectCommand = sqlSelect

Dim dv As Data.DataView = CType(SqlDataSource1.Select(DataSourceSelectArguments.Empty), Data.DataView)
For Each dr As Data.DataRow In dv.Table.Rows

sqlSelect = "INSERT INTO Component_Profile (Waste_Profile_Num, Range, Concentration, Component_ID) "
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SqlDataSource1.InsertParameters.Clear()
MsgBox(Session("NewID").ToString())

Next

End Sub

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Dear All,
 
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string OcompConnection = ConfigurationManager.ConnectionStrings["GenUserCode"].ConnectionString;
 System.Data.SqlClient.SqlConnection conn = new System.Data.SqlClient.SqlConnection(OcompConnection);
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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

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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

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




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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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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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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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May 3, 2006

Hello.

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

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

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Case 
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Apr 25, 2007

Hi guys,

I've got a query on a particular table returning an odd result:

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This query returns the rows I'd expect plus a null row. This doesn't happen in databases at other sites, or in other tables at this site. The following query behaves as I'd expect returning only non-null AccountNumbers.

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I can't reproduce these results on another site on a table of the same structure, or on another table at this site.

Any suggestions as to what might be going on?

Pertinent info:
---
select @@Version

Microsoft SQL Server 2000 - 8.00.760 (Intel X86)
Dec 17 2002 14:22:05 Copyright (c) 1988-2003 Microsoft Corporation
Standard Edition on Windows NT 5.2 (Build 3790: Service Pack 1)
---
dbcc checkdb
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---
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TIA,
Karl.

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