How To Convert Null To A String

May 12, 2004

I want all the null (blank) values returned by a stored procedure to be shown as a string like "n/a", how to do that easily? Thanks

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Detect And Convert An Empty String (from Textbox) To Null?

Jun 9, 2007

 Hi all,I have this code that I use for my Search function:SELECT DISTINCT [MUSIC_TITLE], [MUSIC_ORIGINAL_SINGER], [MUSIC_PERFORMER]FROM t_musicWHERE (@MUSIC_TITLE IS NULL OR [MUSIC_TITLE] LIKE '%' + @MUSIC_TITLE + '%') AND (@MUSIC_ARTIST IS NULL OR ([MUSIC_ORIGINAL_SINGER] LIKE '%' + @MUSIC_ARTIST + '%' OR [MUSIC_PERFORMER] LIKE '%' + @MUSIC_ARTIST + '%')) But right now if I don't enter anything in one of the textbox (2 have two, either of them can be left empty), the above Sql statement doesn't return anything since ADO.NET can't tell an empty textbox and treat it at null... So anyone please help me how to detect an empty textbox and set that to null for the above SQL statement to work. (It work in SQL Manager Studio, when I set one of the parameter = null.) I'm very new to ASP.NET stuffs, so if someone can help me to convert that function to code-behind and help me to call it from the .aspx, that would be even better as I don't want to put the code in my .aspx page... But I'm not quite there yet. Thank you all,Kenny.  

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Pass In Null/blank Value In The Date Field Or Declare The Field As String And Convert

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.

I tried the 2nd option but I am having trouble converting the two digits of the recordset (rs_get_msp_info(2), 1, 2))) into a four digit yr. But it will only the yr in two digits.
The mfg_start_date is delcared as a string variable

mfg_start_date = CStr(CDate(Mid(rs_get_msp_info(2), 3, 2) & "/" & Mid(rs_get_msp_info(2), 5, 2) & "/" & Mid(rs_get_msp_info(2), 1, 2)))

option 1
I will have to declare the mfg_start_date as date but I need to send in a blank value for this variable in the stored procedure. It won't accept a null or blank value.

With refresh_shipping_sched
.ActiveConnection = CurrentProject.Connection
.CommandText = "spRefresh_shipping_sched"
.CommandType = adCmdStoredProc
.Parameters.Append .CreateParameter("ret_val", adInteger, adParamReturnValue)
.Parameters.Append .CreateParameter("@option", adInteger, adParamInput, 4, update_option)
.Parameters.Append .CreateParameter("@mfg_ord_num", adChar, adParamInput, mfg_ord_num_length, "")
.Parameters.Append .CreateParameter("@mfg_start_date", adChar, adParamInput, 10, "")
Set rs_refresh_shipping_sched = .Execute
End

Please help

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SIMPLE Command To Convert String To Number? Not CAST Or CONVERT.

Aug 15, 2006

Dear Experts,Ok, I hate to ask such a seemingly dumb question, but I'vealready spent far too much time on this. More that Iwould care to admit.In Sql server, how do I simply change a character into a number??????In Oracle, it is:select to_number(20.55)from dualTO_NUMBER(20.55)----------------20.55And we are on with our lives.In sql server, using the Northwinds database:SELECTr.regionid,STR(r.regionid,7,2) as a_string,CONVERT(numeric, STR(r.regionid,7,2)) as a_number,cast ( STR(r.regionid) as int ) as cast_to_numberFROM REGION R1 1.00112 2.00223 3.00334 4.0044SELECTr.regionid,STR(r.regionid,7,2) as a_string,CONVERT(numeric, STR(r.regionid,7,2) ) as a_number,cast (STR(r.regionid,7,2) as numeric ) as cast_to_numberFROM REGION R1 1.00112 2.00223 3.00334 4.0044Str converts from number to string in one motion.Isn't there a simple function in Sql Server to convertfrom string to number?What is the secret?Thanks

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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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Convert Null To 0

Jan 8, 2004

Hi,

What would be the Syntax in a SELECT statement to convert a Null Value to 0,

ie,

SELECT RowID, Amount FROM TableA

and Amount is a smallmoney field. For example it is coming back with:

RowID Amount
1 2.3000
2 15.0300
3 NULL
4 7.8900

But I want it to return:

RowID Amount
1 2.3000
2 15.0300
3 0.0000
4 7.8900

Thanks

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Convert Null To 0

Apr 13, 2004

I am trying to convert a value of null to 0. Can I do ot in the VIEW i created. I am calling from the VIEW from a query on my page and using a datareader to populate a datagrid. The error I get isOperator is not valid for type 'DBNull' and type 'Decimal'.

<<itemtemplate><%# String.Format("<font color="darkred">{0:c}</font>", (DataBinder.Eval(Container.DataItem, "MyDecimal"))*(DataBinder.Eval(Container.DataItem, "price"))) %>
Line 81: </itemtemplate>
Line 82: </asp:templatecolumn>
Thanks for any help

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Convert NULL Values

Jul 20, 2005

Hi all,I am trying to convert all the NULL values in a column to "Open". Anyideas??TIA

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Convert Character To NULL

Jun 7, 2007



I am loading a flat file to a table but I also need to scrub the data a bit before the data hits the table. The main update required is converting a dot (.) character to a null value. The source file is using this character to indicate a blank. I know I can use the Dervived Column Transformation, but I have quite a few columns which will take a while to manually configure. Is there another transformation option that anyone can point me to?



Thanks

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Convert Null Values To 0

Aug 26, 2007



Hi

I've got a view which returns Null values due to an left outer join. The field which sometimes returns Nulls is called ClientCount. I want to create a new field which displays the value of ClientCount if ClientCount is not null and 0 if it is null.

In MS Access I use the following: IIF([ClientCount] Is Null,0,[ClientCount])
This does not seem to work in MS SQL. Is there some equivalent function I could use?

Thanks
David

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Accept NULL Value And Convert It To Default Value...

Feb 14, 2008

Is there any way to make a column to accept NULL but stores it as default value of Column Property?

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Does NULL Inherit A Datatype After Convert

Jun 16, 2015

i have a little confusion...

DECLARE @name varchar(30)
SET @name = NULL
SELECT ISNULL(CONVERT(DATE,@name),'')
Result: 1900-01-01

But..

DECLARE @name varchar(30)
SET @name = NULL
SELECT ISNULL(@name,'')

Does NULL inherit a datatype after convert?

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How To Convert Null To Currency Or Numeric

May 12, 2006

Greetings -

I have a problem that I am unable to fix. I am migrating data from one ERP system to another ERP system.

I created a table in SQL via DTS by converting an excel file into an SQL Table.

The table has a column 'currentcost'. Most items in the table have a value in this column. However, some items have <null> in this column. I am updating another SQL table with currentcost that is in this column. However, my table being updated requires a value in its corresponding currentcost table. Therefore, my update statement terminates due to the source table having <null> values.

I tried an update statement to convert <null> into a '0'

It was 'update Source_New_ItemMaster set currentcost = '0' where currentcost = <null>

This obviously didn't work. How can a change a <null> value in an SQL table to '0' (zero)?

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Convert 0 Or NULL To 1 For Devision Purpose

Jul 20, 2005

hi,I have data like 0, null or some value in one column. I want to usethis column for devision of some other column data.It gives me devision by 0 error.how can I replace all 0 and null with 1 in fly.thanks in adv.t.s.negi

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Analysis :: Convert A Zero To Null Or Empty?

Sep 10, 2015

I am working on a cube and I want to hide the results of a calculation if it is zero.

It is an inventory problem based on a transaction pattern. (add plus one to the inventory, add minus one to the inventory).

The sum of those two is zero, but the cube get messed but by thousands of zero.

I found some solutions of displaying 0 for NULL but I want to dispaly NULL (or empty) for 0.

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Convert Date Format Of 00-XXX-00 To NULL

Apr 14, 2006

Let me start by saying that I'm brand new to SQL Server 2005 and SSIS. I'm using the import wizard in SQL2005 to import from a flat file into a table and everything works fine except for dates. A typical date in my flat file is 01-JAN-06. 01 represents the day of the week, JAN represents the month and 06 represents the year. The flat file also contains date values of 00-XXX-00 which represent no date. For example a column containing last purchase date data would look like this:"DateOfLastOrder"
"01-JAN-06"
"02-JAN-06"
"00-XXX-00"
"03-DEC-05"The value of 00-XXX-00 means that there is no purchase date.I want to bring these columns into my table and replace the 00-XXX-00 values with a NULL.

The table Data Type is datetime.

If I use the import wizard using the example above I get this error message:

- Copying to [cpstest].[dbo].[date] (Error)
Messages
Error 0xc0202009: Data Flow Task: An OLE DB error has occurred. Error code: 0x80004005.
An OLE DB record is available. Source: "Microsoft SQL Native Client" Hresult: 0x80004005 Description: "Invalid character value for cast specification".
(SQL Server Import and Export Wizard)

Error 0xc020901c: Data Flow Task: There was an error with input column "DateOfLastOrder" (32) on input "Destination Input" (26). The column status returned was: "The value could not be converted because of a potential loss of data.".
(SQL Server Import and Export Wizard)

Error 0xc0209029: Data Flow Task: The "input "Destination Input" (26)" failed because error code 0xC0209077 occurred, and the error row disposition on "input "Destination Input" (26)" specifies failure on error. An error occurred on the specified object of the specified component.
(SQL Server Import and Export Wizard)

Error 0xc0047022: Data Flow Task: The ProcessInput method on component "Destination - date" (13) failed with error code 0xC0209029. The identified component returned an error from the ProcessInput method. The error is specific to the component, but the error is fatal and will cause the Data Flow task to stop running.
(SQL Server Import and Export Wizard)

Error 0xc0047021: Data Flow Task: Thread "WorkThread0" has exited with error code 0xC0209029.
(SQL Server Import and Export Wizard)



If I remove the 00-XXX-00 values and import something like this:

"DateOfLastOrder"
"01-JAN-06"
"02-JAN-06"
"03-DEC-05"

The import is successfull and the dates look correct in a querry.

SELECT *
FROM date


date
-----------------------
2006-01-01 00:00:00.000
2006-01-02 00:00:00.000
2005-12-03 00:00:00.000

(3 row(s) affected)


Does anyone know how I should go about getting these date columns into a datetime table and convert the 00-XXX-00 values into NULLs?

Thank you,

Ryan

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Convert To Null Where Data Is Blank

Apr 17, 2008



Hi, where I return the address details, in some of the fields they are blank, I need these blank fields as nulls, how do i do that ?

Thanks





Code Snippet
SELECT
a.[Account Name],
a.[Line Address 1],
a.[Line Address 2],
a.[Line Address 3],
a.[Line Address 4], b.*
FROM (
SELECT
abCUSA AS Company,
abCUSB AS Account,
0 AS DeliverTo,
abcnam AS [Account Name],
abcad1 AS [Line Address 1],
abcad2 AS [Line Address 2],
abcad3 AS [Line Address 3],
abcad4 AS [Line Address 4],
CONVERT(VARCHAR(20), abCUSA) + CAST(abCUSB AS VARCHAR(20)) AS [Customer Number]
FROM
LIVEAS400.S65C422B.WRFDTA.PARNADR
) a
Inner JOIN
(
SELECT
SLDATE as Date,
SLCUSA as [Company Number],
SLCUSB as [Customer Suffix],
SLDELN as [Deliber To Number],
SLTREF as [Trans Reference],
SLCNAM as [Deliver To Name],
CONVERT(VARCHAR(20), SLCUSA) + CAST(SLCUSB AS VARCHAR(20)) AS [Customer Number],
CONVERT(VARCHAR(20), SLCUSA) + CAST(SLCUSB AS VARCHAR(20)) + CAST(SLDELN AS VARCHAR(20)) AS [Full Deliver To Number],
-- SLTRT2 as [Trans type],
CASE WHEN SLTRT2 IN (92, 93, 94, 95, 98) THEN SLGDSV * -1 ELSE SLGDSV END as [Goods Value],
CASE WHEN SLTRT2 IN (92, 93, 94, 95, 98) THEN SLVATV * -1 ELSE SLVATV END as [VAT],
CASE WHEN SLTRT2 IN (92, 93, 94, 95, 98) THEN SLTOTV * -1 ELSE SLTOTV END as Total,
SLDESC as [Trans Description]
FROM LIVEAS400.S65C422B.WRFDTA.SQLSLDGR
) b ON a.[Customer Number] = b.[Customer Number]

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How To Convert A (varchar(21), Null) Variable To Float???

Dec 28, 2007

Hi there, I've a question regaarding datatype conversions... I can't convert the above mentioned datatype. I always get an error message that the conversion fails. Doesn't matter If convert or cast is used.

How would you convert the above mentioned variable into float???

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Convert A String To Int?

Jul 10, 2014

using sql 2008, trying to convert a string to int

Example

Table1 has a varchar which i want to cast to int
00125000000 to int 125000000
i used the following
cast(B.[Assessment] as int) as [USER1_01],

with the result 125000000

Table2 has the same field in a different format.

0.00125

i need to find a way to convert one of them so they both match. if i did a join and matched the fields.

I tried

cast (10000000000 * cast([USER1_01] as NUMERIC(6,6)) as INT) as [USER1_01]

but for some reason it dosent look like they match, although they look the same. maybe a type problem?

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Need To Convert NULL Values To 0, (zero) In Order To Perform Math Calculations

Feb 20, 2007



Using a reporting services model/report builder we have two related tables:
- Fundings, (parent)
- Draws, (child)

Report Builder reports that subtract "Total Fundings.Amount", (which is SUM(FundingAmount)) from "Total Draw Amount", (which is SUM(DrawAmount)) to get a balance work as expected except when there are no Draw rows, in which case a NULL is returned. Obviously we want to convert NULL values of "Total Draw Amount" to zero so that when subtracted from "Total Fundings.Amount" the correct value is displayed. I've searched for a function similar to COALESCE (Transact-SQL) in report builder but found nothing.

Can anybody help me with this?



Thanks

Bruce

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How To Convert A Number To String In SQL?

Jul 7, 2006

I search the help for T-sql, still don't know how to convert a number, for example 12345 to a string with formating like 12,345
Thanks for your help.

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Jul 17, 2007

Hello all,Currently i am having problem with the conversion from object to string. I am using SqlCommand to draw data from DB, and the statement i used is:String ires = myCommand.ExecuteScalar().ToString();and then convert ires to int by int.Parse(ires) I have got no problem during the compilation, but it gives me the exception during the runtime...any one got any ideas? Thanks 

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Aug 1, 2007

I'm working with an SqlDataSource, and I'm just wondering how to get the data to a String if I'm sure the select statement will only return 1 piece of data. Any ideas?

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Jan 2, 2006

hi , i have a problem
i have an textarea that i want to convert to DateTime format (dd/MM/yyyy) .
the data in the textarea is (dd/MM/yyyy for example 21/12/2005).
i need it to add this data in sql server , in smalldatetime formation colum .
plz help.
 
 

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How To Convert A Hex String To An Integer?

Feb 1, 2000

Hi folks,
I'm trying to import data from a text file (UnicodeData.txt) into
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expressed as four hexidecimal digits. I've succeeded in importing
the data as character strings, but I have not found a way to convert
them into numbers. (They could be stored as int or nchar.)
I've tried convert(binary/int/whatever, string); E.g.
select convert(int, '0x1111') from import_unicode
gives the error
Syntax error converting the varchar value '0x1111' to a column of data type int.

I could write code to strip off one character at a time, convert the
hex digit to a decimal value, shift left, etc., but I find it hard
to believe that's the best way.

Any help is appreciated. Please email answer to lars_huttar@sil.org
as I don't read this board.

Thanks,
Lars Huttar
lars_huttar@sil.org

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Dec 7, 1999

I'm using SQL 7.0 SP1.

I am using DTS to read in a date with the format of YYYYMMDD. I am trying to convert this date to MM/DD/YYYY and then use the CDate function with the following code to load it into a Datetime column in SQL Server:

Function Main()
strDate = DTSSource("Col002")
strYear = Left(strDate, 4)
strMonth = Mid(strDate, 5, 2)
strDay = Right(strDate, 2)

strHoldDate = strMonth + "/" + strDay + "/" + strYear

DTSDestination("DateName") = strHoldDate
Main = DTSTransformStat_OK
End Function

My DTS package will execute without errors, but it does not add the row. I have been successful using CDate when the source date is in the format MM/DD/YYYY.

Also, do you have any tips on how to debug DTS? How to see what's in a variable, etc.?

Thanks!
Lisa

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Sep 4, 2014

To start, I am NOT a SQL programmer. I have to do some minimal SQL administration (DB Creation, Backups, Security) on spatial databases that are for the most part managed by a 3rd party program. My experience with T-SQL is mostly simple tasks (i.e. Select and Update statements)..However I have been requested to calculate an ID Field using the values of two other fields. Per the request, I need to convert one field to Hex and concatenate with the second field.

ex. Field 1 + Field 2(hex string) = Field 3
Field 1 = 'FF02324323'
Field 2 = 'Smith Creek'
Field 3 = 'FF02324323536D69746820437265656B'

Field 1 VarChar(10) (Code)
Field 2 VarChar(65) (Common Name)
Field 3 VarChar(max) (ResourceID)

Spent half the day searching and have tried various forms of CAST, CONVERT, fn_varbintohexstr and others but have unable to come up with the correct combination to get what I need.

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Oct 29, 2014

In our ERP system we have a field which is a date-picker in the user front end, but the value is stored in an NVARCHAR field and not always consistently. How can I convert this to a date (preferably in the format YYYY-MM-DD HH:MM) that I could use in a calculation?

select code, spec_value from spec_checklist_remind where spec_checklist_id = 17

code spec_value
------------ -----------------------------------------------------------------------
05MC0001 22/07/2014
05MC0002 23/07/2014
06MT0001 01-May-2014
06MT0002 01-May-2014
06MT0006 01/05/2014
06MT0007 01-May-2014
06MT0008 01/05/2014

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Dec 6, 2014

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[URL] .....

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Jul 13, 2006

hey, guys

I got a strange question. :)

In SQL Server,
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Is there any way I can reference @str to @Item8 ?

Thanks

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Jul 19, 2006

hi,

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May 4, 2007

Hi,



I am new to SSIS and have been trying to load a date from a Table1.ColumnA (varchar(50)) to a Table2.ColumnB(smalldatetime).



I tried using the Derived Column and Data Conversion controls but I get the below error.

Error converting data type DBTYPE_DBTIMESTAMP to datetime



What do I do to load this data.



Thanks,

Noel

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Jul 29, 2007



Hi all,
I defined an user string type varible in the package as AccountLen. I am trying to use this varible in the Expression of Derived Column transformation.
I want to retrieve a part of column, i.e: Right(Column1, @AccountLen), this is always wrong because the AccountLen is string type. How I can convert it to the numeric so that can be used in the RIGHT function?
Thanks

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