ASP Returning Null Sized Field From MS SQL Database

Jul 20, 2005

We currently have an SQL db running on a web server.
One of these fields is a large(ish) amount of text data up to 400
characters and has been cast variously as varchar, nchar and text
type to overcome a problem. The problem appears to be in retrieving
the data via ASP. I understand that ASP can handle string data of this
size so I am okay there.
When the records are retrieved from the db, the data string length =0.
I know the data is there because I have written a Delphi data manager
which interrogates the db and shows all records and their contents.
So if ASP can handle strings this size and the data is there, why do I
get a data length of zero bytes returned when I interrogate the record
Whichever way I cast this field I get the same result.

I know the code is sound as it works locally through a MS SQL server
on my PS.
Anyone have this problem or know what's causing it? I have logged a
support call with my hosting company, but they haven't replied as yet
and I am stuck on an urgent project.

Any suggestions?


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Sql SELECT Returning NULL On DateTime Field

Aug 8, 2006

Hi there ;
This Problem is goin to make me crazy!
I've got a table with couple of fields, 2 of them are DateTime, in Sql Express 05 .
I used 2.0 to insert datetime values, directly,  using sth like DateTime.Now.ToString() .
i use 2 selects as follows :
1)select * from X where  Date1='8/9/2006 11:17:41 AM'
2)select * from X where  Date2='8/9/2006 11:17:41 AM'
#1 is OK, but the second one returns a row with all columns set to NULL .
(X is the name of the table)
Thanks in advance

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Feb 27, 2008

I am building a website in C# for a university project, and would like to search a table (Member) for a field (UserName) using a session variable Session["sUserName"]. If that field is null, then I would like to insert that session variable into the field to start to create a new user. However, I am getting errors saying that I am using invalid expression terms. My code is;
//Create the Command, passing in the SQL statement and the ConnectionString queryString = "SELECT UserName FROM Member WHERE (UserName = @myUsername); ";
SqlCommand cmd = new SqlCommand(queryString, sqlConn);cmd.Parameters.Add(new SqlParameter("@myUsername", Convert.ToString(Session["sUserName"])));
//If UserName is null, display confirmation, else display errorif (UserName == null) ;
{UserNameCheckLabel.Text = "Username okay";
String queryString = "INSERT INTO Member (UserName) VALUES(@myUsername); ";SqlCommand cmd = new SqlCommand(queryString, sqlConn); cmd.Parameters.Add(new SqlParameter("@myUsername", Convert.ToString(Session["sUserName"])));
{UserNameCheckLabel.Text = "That username is in use";
I have a feeling I should be checking the database for the UserName, but I'm not sure whether to put this in the SELECT statement part or as a method... I would be most grateful for any advice!
Many thanks,

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How can I do this? I get errors if I submit a null integer when there is a foreign key constraint. What is the best way to handle this? should I just make all parameters objects? so that I can set them to DBNull.Value?
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How can I pass into the database (@User_fax = null) if the fax form field is empty, from a command type Stored Procedure? For example:

Dim CmdUpdate As New SqlCommand("Form2_NewUser", strConnection)
CmdUpdate.CommandType = CommandType.StoredProcedure

CmdUpdate.Parameters.Add("@User_fax", SqlDbType.char, 9)
CmdUpdate.Parameters("@User_fax").Value = fax.Text()


And, the stored procedure inside Sql server:

USE market1
ALTER PROC Form2_NewUser
@User_id bigint, @User_fax char(9),...


SET User_fax = @User_fax, ...

WHERE User_id = @User_id

Thank you,

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Thanks to everyone in advance

The code below returns the members who have accounts that are inactive, and works correctly.
It returns the memberid, but returns null values for the barcode values.
I am explicitly looking for unmatched rows, i.e. the LEFT OUTER JOIN will return joined member-address
rows which do not have a matching account, according to the ON conditions, and these are the ones I want
because of that WHERE condition.
Therefore account.barcode will always be NULL too.

Is there to perform the same query and return account details?
I have tried running a query to return just the memberid values and then perform a second query to match the account
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select member.memberid, account.barcode
FROM member
JOIN address
ON address.MemberID = member.Memberid
JOIN account
ON account.Memberid = member.MemberID
AND account.enddate >= current_date
AND account.closed = 0
WHERE account.Memberid is null AND member.isDeleted = 0

Special thanks to r937 for help.

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SP Code 
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@assignmentPrimaryKey int,
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c# code
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if (conn == null)  return true;
SqlDataReader reader = null;
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If I only did WHERE column <> 1.0, i only get the 0.0 results and none of the NULL results, but if I have no WHERE statement I get all the results including the NULL values.

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I have upgraded database from sql6.5 to sql 7.o

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When I issue the following command new record is getting inserted into
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But, I am not able to get the @@identity value
It is returned as NULL.

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Dec 30, 2003

I need to pass in null/blank value in the date field or declare the field as string and convert date back to string.

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The mfg_start_date is delcared as a string variable

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option 1
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With refresh_shipping_sched
.ActiveConnection = CurrentProject.Connection
.CommandText = "spRefresh_shipping_sched"
.CommandType = adCmdStoredProc
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Protected Sub CreateGiftOccasion(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button2.Click
Dim null As New Nullable(Of Integer)
Dim da As New DataSet2TableAdapters.Gift_OccasionTableAdapter
Dim GiftOcc_ID As Guid
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I'm still having issues with this despite my attempts to resolve. I even
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TIA, ChrisR

--If there is no master key, create one now

(SELECT * FROM sys.symmetric_keys WHERE symmetric_key_id = 101)
'23987hxJKL95QYV4369#ghf0%94467GRdkjuw54ie5y01478d Dkjdahflkujaslekjg5k3fd117

WITH SUBJECT = 'Employee Social Security Numbers';


USE [AdventureWorks];

-- Create a column in which to store the encrypted data
ALTER TABLE HumanResources.Employee
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-- Open the symmetric key with which to encrypt the data

-- Encrypt the value in column NationalIDNumber with symmetric
-- key SSN_Key_01. Save the result in column EncryptedNationalIDNumber.
UPDATE HumanResources.Employee
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-- First, open the symmetric key with which to decrypt the data

-- Now list the original ID, the encrypted ID, and the
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alter procedure getDecryptedIDNumber
with exec as owner
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AS "Decrypted ID Number"
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/*works for me, shows the decrypted data*/

exec getDecryptedIDNumber

USE [master]


USE [AdventureWorks]


use [AdventureWorks]

GRANT EXECUTE ON [dbo].[getDecryptedIDNumber] TO [test]


/*Now, open up a "file/new/DB Engine Query" and login with the test login*/
exec as user = 'dbo'
exec getDecryptedIDNumber

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System.out.println("b = " + b);
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Call To Stored Proc Returning Null Datatable

Jun 6, 2007

I have a stored proc which should be returning a datatable.  When I execute it manually it returns all requested results. However, when I call it via code (C#) it is returning a null table which leads me to believe the problem is in my code.  I'm not getting any errors during runtime.  Any help at all would be a BIG help!
private void PopulateControls()    {        DataTable table = CartAccess.getCart();    }
public static DataTable getCart() {        DbCommand comm = GenericDataAccess.CreateCommand();        comm.CommandText = "sp_cartGetCart";
        DbParameter param = comm.CreateParameter();        param.ParameterName = "@CartID";        param.Value = cartID;        param.DbType = DbType.String;        param.Size = 36;        comm.Parameters.Add(param);
        DataTable table = (GenericDataAccess.ExecuteSelectCommand(comm));        return table; }
public static DataTable ExecuteSelectCommand(DbCommand command)    {        // The DataTable to be returned         DataTable table;        // Execute the command making sure the connection gets closed in the end        try        {            // Open the data connection             command.Connection.Open();            // Execute the command and save the results in a DataTable            DbDataReader reader = command.ExecuteReader();            table = new DataTable();            table.Load(reader);            // Close the reader             reader.Close();        }        catch (Exception ex)        {            Utilities.SendErrorLogEmail(ex);            throw ex;        }        finally        {            // Close the connection            command.Connection.Close();        }        return table;    }

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Left Outer Join Not Returning All/null Rows

Dec 31, 2007

Need some join help...

Table 1 - Modules:
ID | Name
1 | A
2 | B
3 | C

Table 2 - CompanyModules
ModuleID | CompanyID
1 | 1
2 | 1
3 | 1
1 | 2

I'd like to return the following result set:
CompanyModules.CompanyID | Modules.Name | Present
1 | A | True
1 | B | True
1 | C | True
2 | A | True
2 | B | False
2 | C | False

What would be the query for this? Thanks.

Edit: This is the query I have tried:

select CompanyModules.CompanyID, Modules.Name, count(Modules.ID) as Present from

CompanyModules RIGHT outer Join Modules on CompanyModules.ModuleID = Modules.ID

group By CompanyModules.CompanyID, Modules.Name

Order by CompanyID

However, it only returns a partial result set:

CompanyModules.CompanyID | Modules.Name | Present
1 | A | 1
1 | B | 1
1 | C | 1
2 | A | 1

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Returning Identity Field

Jun 12, 2006

Hi all i'm trying to get the identity field after inserting into db, what am i doing wrong? thanks a lot
my sproc:
class file
public class Cotacoes
public int codigoCotacao;
public class CotacaoAtualiza {  public Cotacoes cotacoes = new Cotacoes();
  public CotacaoAtualiza()  {  }
  public void AdicionarCotacao(   ...   )  {   SqlConnection myConnection = new SqlConnection(ConfigurationSettings.AppSettings["stringConexao"]);   SqlCommand myCommand = new SqlCommand("ng_AddCotacao", myConnection);
   myCommand.CommandType = CommandType.StoredProcedure;
   SqlParameter paramCodigo_cotacao = new SqlParameter("@Codigo_cotacao", SqlDbType.Int, 4);   paramCodigo_cotacao.Direction = ParameterDirection.Output;   myCommand.Parameters.Add(paramCodigo_cotacao);
   myConnection.Open();   SqlDataReader result = myCommand.ExecuteReader();
   while(result.Read())    {    this.cotacoes.codigoCotacao = (int) result["@Codigo_cotacao"];   }
   myConnection.Close();  }
calling into code-behind file:
CotacaoAtualiza ca = new CotacaoAtualiza();
Cotacoes cotacoes = ca.cotacoes;
Response.Redirect("Cotacao_confirma.aspx?cotacao=" + cotacoes.codigoCotacao);

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Returning A Count Of A Certain Field

Nov 18, 2014

I want to get a count of how many PosAnswer are associated with the QuesToAsk 'List your top 5 favorite places'

This is the syntax I am using to achieve this, and it works, but wasn't sure if there was a better way (changing the data structure is unfortunately not an option in this situation). Here is my table structure

Create Table Test
QuesToAsk varchar(1000),
PosAnswer varchar(1000)

[Code] ....

And this is the syntax I use to get the count I am after

DECLARE @VariableName varchar(25)
DECLARE @FormattedVariableName varchar(25)
DECLARE @FieldCount int
SET @VariableName =

[Code] ....

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Transact SQL :: CASE With Subselect And DATEADD Function Returning NULL Values

Jun 15, 2015

I'm running the following test query on a single table:

SELECT sph.datestamp, sph.stocksymbol, sph.closing, DATENAME(dw, sph.datestamp),
CASE DATENAME(dw, sph.datestamp)    
WHEN 'Monday' then 'Monday'  
ELSE (SELECT CAST(sph2.datestamp AS nvarchar) FROM BI_Test.dbo.StockDB AS sph2 WHERE sph2.DateStamp = DATEADD(d, -1, sph.datestamp) AND sph2.StockSymbol = 'NYA') 
END AS TestCase,

[Code] ....

And here's an example of the output I'm getting:

Why the exact same subquery in the THEN of the second CASE statement is returning NULL when the first one completes as expected?

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