Null Values Are Getting Updated

Jan 30, 2014

i am using sql server 2008 developer edition on in my desktop pc.i created a database in which there's a table that contains a column named "images" with a data type image for storing images in database.And all is working very fine No issue in this.

the problem arise after i copied the .mdf and .ldf files from my desktop to my laptop which also have same sql server 2008 developer edition.

Coming to the main issue "is I am not able to To save ,update images in that table from my laptop.i tried the best of what i could do but unsuccessful. i formatted my entire laptop as i thought of;basically the same thing works flawless in my desktop but not in my laptop.

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Compressing Multiple Rows With Null Values To One Row With Out Null Values After A Pivot Transform

Jan 25, 2008

I have a pivot transform that pivots a batch type. After the pivot, each batch type has its own row with null values for the other batch types that were pivoted. I want to group two fields and max() the remaining batch types so that the multiple rows are displayed on one row. I tried using the aggregate transform, but since the batch type field is a string, the max() function fails in the package. Is there another transform or can I use the aggragate transform another way so that the max() will work on a string?

-- Ryan

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How To: Create A Table That Only Allows NULL Fields To Be Updated.

Feb 26, 2008

I need to create a table that only allows fields to be updated if the field value is NULL. Is there anyway to configure a table in this manner?

In the example below the record will be created with a serial number and verification ready flag set to true. Other processes down stream will update the remaining fields as needed but should not update fields that have already been initialized.

Table Definition

USE [DB_AUTOMATED_PACKAGING_SYSTEM]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
SET ANSI_PADDING ON
GO
CREATE TABLE [dbo].[TBL_LABEL_VERIFICATION](
[SerialNumber] [varchar](50) NOT NULL,
[VerificationReady] [int] NOT NULL,
[VoidLabelImage] [image] NULL,
[VerifiedBy] [varchar](50) NULL,
[VerifiedDate] [datetime] NULL,
[Verified] [int] NULL,
CONSTRAINT [PK_TBL_LABEL_VERIFICATION] PRIMARY KEY CLUSTERED
(
[SerialNumber] ASC
)WITH (PAD_INDEX = OFF, STATISTICS_NORECOMPUTE = OFF, IGNORE_DUP_KEY = OFF, ALLOW_ROW_LOCKS = ON, ALLOW_PAGE_LOCKS = ON) ON [PRIMARY]
) ON [PRIMARY] TEXTIMAGE_ON [PRIMARY]

GO
SET ANSI_PADDING OFF

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Record Not Updated Or Deleted When Any Column Consists The Null Value

Oct 23, 2007

Hi All  In My application when i want to work with sqldatasource for updation and delteion tasks it is working properly when all the columns consists the data. If any of the column consists the null values its not updating and deleting. Advices are needed.Thank uBaba 

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Propery Expressions: Values Not Updated

Sep 20, 2006

I see some strange behavior when running a package using the SQL Server Agent. The package I run calls a number of child packages, in which I use property expressions to set - among other things - the path to text files I read into a database.

The property expressions are in the form: @[User::ThePath] + "\TheFile.txt". The variable ThePath is read from an XML configuration file at runtime from the "master" package and passed on to the child packages using a parent package variable configuration.

My problem is this: When the package is executed by the SQL Server Agent, the properties for the path of the text files are not updated, and the package fails, as it cannot locate the files. When using DTExecUI to execute the same package, everything runs fine.

Could it be a permissions issue? I don't think so, as the SQL Server Agent runs under the same account as I am logged in when executing with DTExecUI.

Anyone?

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Update Values From Inserted Or Updated In Triggers

Mar 6, 2008

Hi all. I have this problem:

on insert in a new table a have to change one column before insert.

I wrote this trigger:

create trigger SUBSCR_ID_TRANSFER ON dbo.SalesOrderExtensionBase AFTER INSERTAS BEGIN SET NOCOUNT ON;DECLARE @OpportunityID uniqueidentifier;DECLARE @subscrId uniqueidentifier;declare @salesorderid uniqueidentifier;set @salesorderid = (select SalesorderID from inserted)SET @OpportunityID = (SELECT OpportunityId FROM SalesOrderBase where SalesOrderID=@salesorderid)SET @subscrId = (SELECT New_old_subscridId from OpportunityExtensionbase where OpportunityID=@OpportunityID)Update inserted set New_old_subscridId = @subscrIdENDbut SQL Rise the error "The inserted values can not be modified"

how to slove this issue.
Thanks.

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SQL Server 2008 :: Monthly - Updated Values - Keep For Reference

Oct 18, 2015

I have a table with constantly changing data - stock.

I want to start monitoring the value of stock at the end of each month. I can do this with a simple query, export the results to Excel and store on the network.

My question is:

Are there better ways to do this with SQL Server?

I thought of a monthly "job" that does the query and outputs to a file. (Need to be able to look at each month separately though for trend monitoring.)

Then wondered, if I should have an extra table to store the data and write queries on that in the future?

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NULL Values Returned When Reading Values From A Text File Using Data Reader.

Feb 23, 2007

I have a DTSX package which reads values from a fixed-length text file using a data reader and writes some of the column values from the file to an Oracle table. We have used this DTSX several times without incident but recently the process started inserting NULL values for some of the columns when there was a valid value in the source file. If we extract some of the rows from the source file into a smaller file (i.e 10 rows which incorrectly returned NULLs) and run them through the same package they write the correct values to the table, but running the complete file again results in the NULL values error. As well, if we rerun the same file multiple times the incidence of NULL values varies slightly and does not always seem to impact the same rows. I tried outputting data to a log file to see if I can determine what happens and no error messages are returned but it seems to be the case that the NULL values occur after pulling in the data via a Data Reader. Has anyone seen anything like this before or does anyone have a suggestion on how to try and get some additional debugging information around this error?

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Integration Services :: SSIS Reads Nvarchar Values As Null When Excel Column Includes Decimal And String Values

Dec 9, 2013

I have SQL Server 2012 SSIS. I have Excel source and OLE DB Destination.I have problem with importing CustomerSales column.CustomerSales values like 1000.00,2000.10,3000.30,NotAvailable.So I have decimal values and nvarchar mixed in on Excel column. This is requirement for solution.However SSIS reads only numeric values correctly and nvarchar values are set as Null. Why?

CREATE TABLE [dbo].[Import_CustomerSales](
 [CustomerId] [nvarchar](50) NULL,
 [CustomeName] [nvarchar](50) NULL,
 [CustomerSales] [nvarchar](50) NULL
) ON [PRIMARY]

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Null Values For Datetime Values Converted To '0001-01-01'

Mar 29, 2006

Hi

can somebody explain me how I can assign a NULL value to a datetime type field in the script transformation editor in a data flow task.
In the script hereunder, Row.Datum1_IsNull is true, but still Row.OutputDatum1 will be assigned a value '0001-01-01' which generates an error (not a valid datetime). All alternatives known to me (CDate("") or Convert.ToDateTime("") or Convert.ToDateTime(System.DBNull.Value)) were not successful.
Leaving out the ELSE clause generates following error: Error: Year, Month, and Day parameters describe an un-representable DateTime.




If Not Row.Datum1_IsNull Then

Row.OutputDatum1 = Row.Datum1

Else

Row.OutputDatum1 = CDate(System.Convert.DBNull)

End If



Any help welcome.

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Use Order By But Want NULL Values As High Values

Nov 9, 2000

Hi,

My query "select blah, blah, rank from tablewithscores" will return results that can legitimately hold nulls in the rank column. I want to order on the rank column, but those nulls should appear at the bottom of the list

e.g.

Rank Blah Blah
1 - -
2 - -
3 - -
NULL - -
NULL - -

At present the NULLs are at the top of the list, but I do not want my ranking in descending order. Any suggestions?

Thanks
Dan

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Integration Services :: SSIS Package - Replacing Null Values In One Column With Values From Another Column

Sep 3, 2015

I have an SSIS package that imports data from an Excel file, replaces any value in Excel that reads "NULL" to "", then writes the data to a couple of databases.

What I have discovered today, is I have two columns of dates, an admit date and discharge date column, and what I need to do is anywhere I have a null value in the discharge date column, I have to replace it with the value in the admit date column. 

I have searched around online and tried a few things using the Replace funtion in Derived columns but no dice so far. 

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How To Correctly Update A Table Which Values Can Be Either Inserted/updated/deleted On Update?

Feb 16, 2006

Hi SQL fans,I realized that I often encounter the same situation in a relationdatabase context, where I really don't know what to do. Here is anexample, where I have 2 tables as follow:__________________________________________ | PortfolioTitle|| Portfolio |+----------------------------------------++-----------------------------+ | tfolio_id (int)|| folio_id (int) |<<-PK----FK--| tfolio_idfolio (int)|| folio_name (varchar) | | tfolio_idtitle (int)|--FK----PK->>[ Titles]+-----------------------------+ | tfolio_weight(decimal(6,5)) |+-----------------------------------------+Note that I also have a "Titles" tables (hence the tfolio_idtitlelink).My problem is : When I update a portfolio, I must update all theassociated titles in it. That means that titles can be either removedfrom the portfolio (a folio does not support the title anymore), addedto it (a new title is supported by the folio) or simply updated (atitle stays in the portfolio, but has its weight changed)For example, if the portfolio #2 would contain :[ PortfolioTitle ]id | idFolio | idTitre | poids1 2 1 102 2 2 203 2 3 30and I must update the PortfolioTitle based on these values :idFolio | idTitre | poids2 2 202 3 352 4 40then I should1 ) remove the title #1 from the folio by deleting its entry in thePortfolioTitle table2 ) update the title #2 (weight from 30 to 35)3 ) add the title #4 to the folioFor now, the only way I've found to do this is delete all the entriesof the related folio (e.g.: DELETE TitrePortefeuille WHERE idFolio =2), and then insert new values for each entry based on the new givenvalues.Is there a way to better manage this by detecting which value has to beinserted/updated/deleted?And this applies to many situation :(If you need other examples, I can give you.thanks a lot!ibiza

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Using NOT IN With Null Values

May 19, 2008

Hi, I ve a table,  I want to fetch certain rows based on the value of a Column. That column is nullable, and contains NULL values.I used the following query,SELECT Col_A FROM TABLE1 WHERE SOME_ID = 1317 AND Col_B NOT IN (8,9) Here,  Col_B contains NULL values too. I need to fetch all rows where Col_B is not 8 or 9.Now, if I use "NOT IN", it does not work. I tried reading on it and got to know why it does not work. Even "NOT EXISTS" does not help. But still I've to fetch my values. How do I do that?Thanks & Regards,Jahanzeb        

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SQL Null Values In VB

Apr 10, 2006

I have tried doing a search, as I figured this would be a common problem, but I wasn't able to find anything.  I know that my SP is functional because when I use VWD execute the query outside of the webpage, I get the correct results -however I have to ensure that a field is either entered, or set to <NULL>.  In my SET's I want it to use the wildcards.
What I want is to do a search (plenty of existing topics on that, however none were of help to me).  If a field is entered, then it is included in the search.  Otherwise it should be ignored.  In my VB I have the standard stored procedure call, passing in values to all of the parameters in the stored proc below:
CREATE PROCEDURE dbo.SearchDog@tagnum int,@ownername varchar(50), @mailaddress varchar(50),@address2 varchar(50),@city varchar(50),@telephone varchar(50),@doggender varchar(50),@dogbreed varchar(50),@dogage varchar(50),@dogcolour varchar(50),@dogname varchar(50),@applicationdate varchar(50)AS IF @tagnum=-1  SET @tagnum=NULL  SET @ownername = '%'+@ownername+'%'  SET @mailaddress = '%'+@mailaddress+'%'  SET @address2='%'+@address2+'%'  SET @city = '%'+@city+'%'  SET @telephone='%'+@telephone+'%'  SET @dogcolour='%'+@dogcolour+'%'  SET @dogbreed='%'+@dogbreed+'%'  SET @dogage='%'+@dogage+'%'  SET @doggender='%'+@doggender+'%'  SET @dogname='%'+@dogname+'%'  SET @applicationdate='%'+@applicationdate+'%'
 SELECT DISTINCT  * FROM DogRegistry WHERE (  TagNum = @tagnum OR  OwnerName LIKE @ownername OR  MailAddress LIKE @mailaddress OR  Address2 LIKE @address2 OR  City LIKE @city OR  Telephone LIKE @telephone OR  DogGender LIKE @doggender OR  DogBreed LIKE @dogbreed OR  DogAge LIKE @dogage OR  DogColour LIKE @dogcolour OR  DogName LIKE @dogname OR  ApplicationDate LIKE @applicationdate  ) AND TagNum > 0GO
I don't know why it is creating links inside my SP -ignore them.  TagNum is the primary key, if that makes a difference.
On the webpage, it ONLY works when every field has been filled (and then it will only return 1 row, as it should, given the data entered).  Debugging has shown that when nothing is entered it passes "".
Any ideas?

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Null Values

Jun 29, 2000

I am trying to retrieve data from two different tables. One of the tables has more than 20 columns some of which are null. I would like to retrieve data from both tables excluding the columns which have null values. How do I do this?

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SUM When There Are Null Values.

Nov 2, 2007

Would this take care of null values in either a.asset or b.asset?

SELECT convert(decimal(15,1),(sum(isnull(a.asset,0))/1000.0)+(sum(isnull(b.asset,0))/1000.0)) as total_assets

What's throwing me off is that there are multiple a.asset or b.asset for each unique ID. It seems to work, but I'm not following the logic too well. If I were doing this in another language, I would loop through, summing a.asset and b.asset wherever it's not null for each unique ID.

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Null Values

Jan 16, 2006

Hi,

How can I use "Derived Column" to check if a Datetime value is null or not and if null to insert  00/00/00 instead. ?

The background being that while using a "Derived Column" to change a Column from a (DT_DATE) to a (DT_DBTIMESTAMP) everytime I get a null value it see's it as a error.

And the column in particular has ~ 37 K blank / null fields so Im getting a lot of errors

So far I have tried to use something like

ISNULL([Column 34])

Or

SELECT ISNULL(ID, '00/00/0000') FROM [Column 34]

Or


SELECT ISNULL(au_id, '00/00/0000 00:00') AS ssn
FROM [Column 34

but none seems to work [Column 34] being the offending column.

What a normally use is just a simple "(DT_DBTIMESTAMP)[Column 34]"
in the expression column, which seems to work well, but here I get alot of errors

Any ideas?

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Null Values

Apr 20, 2007

I set up a new SQL database file, in that file I allowed nulls, When I went through code to save the record, the exception is saying it doesnt allow nulls.



Before I get to involved with SQL, is it a bad practice to use nulls?



If it is what do you enter in place of the null value,

which will lead to more code, right?



Davids Learning SQL

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Dealing With Null Values

Jul 31, 2006

hi ive got a inert sub where i grab values from text boxes etxthe values are passed to a stored procedure however , one of these fields is a date field , but the field is not required ...so on this line if the date text box is left blank i get an error , not a valid date    .Parameters.Add("@actiondate", SqlDbType.DateTime).Value = txtActionDate.Texti have tried ( the actiondate field can take nulls ..)if txtActionDate="" then    .Parameters.Add("@actiondate", SqlDbType.DateTime).Value = nothing else.Parameters.Add("@actiondate", SqlDbType.DateTime).Value = txtActionDate.Textend if but this doesnt workwhat is the best way of allowing blank values to be passed to the stored procedure( it doesnt fall over with normal text / varchar fields ) thanks

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SQLDataSource And Null Values

Dec 20, 2006

I have a sproce that accepts null for one of its parameters I can execute the sproce and enter null and it works fine, it returns all rows. When I try doing this with my GridView and the SQLDataSource it does not work. I need some help in understanding how the SQLDatasource wants a null. Here is what the parameter row of the SQLDataSource looks like.
<asp:ControlParameter ControlID="EnteredByText" DefaultValue="Null" Name="EnteredBy" PropertyName="Text"
Type="String" ConvertEmptyStringToNull="true" />
In my sproce I have setup the parameter as follows;
@EnteredBy Nvarchar(50)=Null
In my WHERE Clause I have:
WHERE (tblClient.EnteredBy = @EnteredBy OR @EnteredBy IS NULL)

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How To Check For NULL Values In T-SQL

Jan 19, 2007

How can I check on NULL values in a Select statement?
SELECT ID FROM TabelWHERE somecolumn <> NULL??

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Querying When Some Values Are Null

Mar 5, 2007

I wonder if someone out there can help me. I am writing an ASP application to query a MSSQL database. The users will be able to use one or all of 4 columns. There may be time when the columns are empty (null). How can I write a select query to ignore null values? A rough example of what I am talking about it below.
select * from table where value1='something' value2=<null> value3='something' value4=<null>
 I would like to ignore the null values so that in effect the statement would just do the following.
select * from table where value1='something' and value3='something'
 I realize my syntax is wrong but I think you get the idea. Any thoughts?

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Selecting Null Values

Mar 12, 2007

I have a stored procedure that allows users to select addresses based on partially supplied information from the user.  My procedure seems to work fine in all but a few cases. If a user decides to select all the rows for a particular country the procedure below does not return any rows even if the rows exist.  I tracked this down to the fact that for Non US countries I set both the StateCode and Country Code to nulls. .
 Below is a partial version of my code.  Can anyone show me how I can do a "Like" Search even if some of the fields in the row contain null values?
Thanks
 1 CREATE PROCEDURE dbo.Addresses_Like( @SendTo VarChar(50) = Null
2 , @AddressLine1 VarChar(50) = Null
3 , @AddressLine2 VarChar(50) = Null
4 , @City VarChar(50) = Null
5 , @StateCode VarChar(2) = Null
6 , @ZipCode VarChar(10) = Null
7 , @CountryCode VarChar(2) = Null)
8
9
10 Declare @SearchSendTo VarChar(50)
11 Declare @SearchAddressLine1 VarChar(50)
12 Declare @SearchAddressLine2 VarChar(50)
13 Declare @SearchCity VarChar(50)
14 Declare @SearchStateCode VarChar(2)
15 Declare @SearchZipCode VarChar(10)
16 Declare @SearchCountryCode VarChar(2)
17
18 If (@SendTo Is Null)
19 Set @SearchSendTo = ""
20 Else
21 Set @SearchSendTo = @SendTo
22
23 If (@AddressLine1 Is Null)
24 Set @SearchAddressLine1 = ""
25 Else
26 Set @SearchAddressLine1 = @AddressLine1
27
28 If (@AddressLine2 Is Null)
29 Set @SearchAddressLine2 = ""
30 Else
31 Set @SearchAddressLine2 = @AddressLine2
32
33 If (@City Is Null)
34 Set @SearchCity = ""
35 Else
36 Set @SearchCity = @City
37
38 If (@StateCode Is Null)
39 Set @SearchStateCode = ""
40 Else
41 Set @SearchStateCode = @StateCode
42
43 If (@ZipCode Is Null)
44 Set @SearchZipCode = ""
45 Else
46 Set @SearchZipCode = @ZipCode
47
48 If (@CountryCode Is Null)
49 Set @SearchCountryCode = ""
50 Else
51 Set @SearchCountryCode = @CountryCode
52
53
54 Select AddressID
55 , SendTo
56 , AddressLine1
57 , AddressLine2
58 , City
59 , StateCode
60 , ZipCode
61 , CountryCode
62 , RowVersion
63 , LastChangedDateTime
64 , OperID
65 From Addresses
66 Where SendTo Like RTrim(LTrim(@SearchSendTo)) + "%"
67 And AddressLine1 Like RTrim(LTrim(@SearchAddressLine1)) + "%"
68 And AddressLine2 Like RTrim(LTrim(@SearchAddressLine2)) + "%"
69 And City Like RTrim(LTrim(@SearchCity)) + "%"
70 And StateCode Like RTrim(LTrim(@SearchStateCode)) + "%"
71 And ZipCode Like RTrim(LTrim(@SearchZipCode)) + "%"
72 And CountryCode Like RTrim(LTrim(@SearchCountryCode)) + "%"
73 Order By CountryCode, City, AddressLine1, AddressLine2, SendTo
 

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Finding NULL Values

Apr 10, 2007

I want to write a query to bring out any records in a table
where any of its fields contain a null value.  I could do it in this way:
 
select    *

from    
customers
where   name is
null
or         role
 is null
or         email
is null
u003c/p>u003cp styleu003d"margin:0cm 0cm 0pt">u003cfont faceu003d"Times New Roman" sizeu003d"3">u003cfont coloru003d"#000000">However I want to perform a similar function for a number of tables and the method above would mean more sql and maintenance.u003cspan>Â u003c/span>I was hoping there was a simple way to do the same thingu003cspan> ie find any rows with a blank fieldu003c/span>?u003cspan>u003cfont faceu003d"Arial" sizeu003d"2">Â u003c/font>u003c/span>u003c/font>u003c/font>u003c/p>u003c/span>u003c/font>u003c/div>",0]
);
D(["ce"]);

//--> 
However I want to perform a similar function for a
number of tables and the method above would mean more sql and maintenance.  I was hoping there was a simple way to
do the same thing ie find any rows with a blank
field?

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Jun 4, 2007

I have a simple table on my webpage which shows data from my database.
It all worked fine apart from one part. I wanted the select statement to select only NULL values from a column, as these are classed as open queries. Once I have closed the query a 0 or 1 will automatically be posted and will no longer have a NULL value.
I have a simple select statement (which I will post on here when I log in with my work computer) and at the end I have a WHERE Column = NULL. I have also tried WHERE column <> 0.0 AND column <>1.0 and that did not work.
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.
 
Oliver

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How To Deal With Null Values

Mar 1, 2008

Hi I have a table in my database and one of the columns is called 'Month'. Here only one month is inserted according to what the user selects from a dro down list.
WHat i want to be able to do is find the average of the column 'ScoreOut' on a month by month basis. My code works fine if th database contains at least one row with every month of the year represented. I run into problems when one of the months is not represented. here is my code:string month = "February";
SqlConnection myConn = new SqlConnection("Data Source=.\SQLEXPRESS;AttachDbFilename=|DataDirectory|\Database.mdf;Integrated Security=True;User Instance=True");String selectCommand = "Select AVG(CAST(ScoreOut as float)) from tblRound where Name = '" + lblName.Text + "' AND Month = '" + month + "'";
SqlCommand myCmd = new SqlCommand(selectCommand, myConn);SqlDataAdapter da = new SqlDataAdapter(myCmd);DataTable dt = new DataTable();
 
da.Fill(dt);
myConn.Open();
myCmd.ExecuteNonQuery();string info = String.Format("{0:0.00}", Convert.ToDecimal(myCmd.ExecuteScalar()));
myConn.Close();
lblHole2.Text = info;
 
 
 
Does anyone know how to get around this problem. If a month is not represented, i would like the label lblHole2.text to be equal to 0.
 
thanks   

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Null Values In Smalldatetime

Feb 24, 2004

Hi,

I am having a column subdate as smalldatetime.

The field can have null values. But I am not able to insert null values into the database.
i tried using subdate="". But it inserts some min value of my calendar popup.

Is there a way that i could insert null values into smalldatetime field of the SQl database.

Thanks,
-sriram

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Oct 4, 2004

I am retrieving a <NULL> value out of a SQL database, displaying it in a text box, then updating the database with the results of the text box.

I am using the following code to make the insert.

.Parameters("@BodilyInjuryPerson").Value = txtBodilyInjuryPerson.Text

When I have values for the text string, everything runs smoothly. However, when the database originally had a <NULL> or when I want to delete the currently existing value and replace it with a <NULL>, I get an error message stating... "Input string was not in a correct format".

Back in the old days, when I was using Random Access databases, you just inserted a Char(0). But that doesn't work any more.

Could somebody help me. I know there is a magic bullet, I just don't know what it is.

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Insert Null Values

Jan 28, 2005

Hi all

Iam having some problems with null values

try
{
cmd.Parameters["@fmv"].Value = Convert.ToDecimal(TextBox13.Text);
}
catch
{
cmd.Parameters["@fmv"].Value =System.Data.SqlTypes.SqlDecimal.Null;
}

for Empty Textbox values
i am getting the following error,

System.Data.SqlTypes.SqlNullValueException: Data is Null. This method or property cannot be called on Null values.

My Database is allowed to accept null values.

System.Data.SqlType.SqlDatetime.Null works but SqlDecimal.Null does not work.

Could any one help me with this?

Thanks

Raj

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Aug 3, 2005

For some reason my Stored Procs are not recognizing NULL values within my database:For example:Select *From ResultsWhere(home_Phone IS NULL)All the home_Phone vaules that are NULL are not being picked up by the query.  Any ideas are appriciated.  Thanks in advance everyone. RB 

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Mar 8, 2000

I have a field called Trainee1 and there are about 3 in every 10 records that the value is <NULL> - I want to change that value to 0.

I have tried to use this command but it changed EVERY record to <NULL>

update Trainee1 set RegId=replace(RegId,'NULL','0')

Has anyone any suggestions on how to just change the records where the value of traineeId is <NULL>???

Thanks in advance,


Anthony

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NULL Values In SQL Server 7.0

Jun 22, 1999

Following SQL Statement is from BOL 7.0 and it doesn't return any data. But when I change the where clause to "WHERE advance IS NULL" it works. I am trying to do something like this in my own stored procedure. It works fine in 6.5 both ways. Is there any parameter to set? or any other problem. Thanks in advance.

SELECT title_id, type, advance
FROM pubs.dbo.titles
WHERE advance = NULL

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