@@identity Set To NULL

May 7, 1999

I have discovered a problem(?) with using replication on 7.0. It seems, no matter which type of replication I use (and I've used all of them), once the server is set up to be a publisher the global identity value is set to NULL. This doesn't seem to affect the identity values in existing tables but could very well affect the program code running the front end program.

I tried creating a new database on the same server just to see what would happen and the @@identity on that database is also NULL.

Does anyone know why this happens and is there a workaround to this? Again, it doesn't seem to affect the tables on which there are identity columns, they are incrementing properly, but I'm worried about the front end programs that are already in existence and are in the process of being developed.

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@@Identity Is Returning NULL

Feb 22, 1999

Hi,

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

I have a table tblnetwork on which identity property
is defined on column networkid.

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

insert tblnetwork(formalname,networktype)
values ("name2",11897)
select @@identity

I need this value to insert into some other table.
Pls suggest me why @@identity is returning NULL
thanks,
MMS

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Instead Of Insert - Identity Null Error

Sep 24, 2004

I'm atempting to use an Instead of Insert Trigger on a view to insert a record into a base table. The base table boundaryline has an identity primary key defined. The following is the error I'm receiving:

The column 'id1' in table 'dbo.ParcelBoundaries1' cannot be null.
Could not insert a record in the database.

The view is as follows:

SELECT IS_TAXLOT, IS_OTHER, IS_CARTOGRAPHIC, IS_RAILROAD_ROW, IS_IRRIGATION_ROW, IS_STREET_ROW, IS_CLOSING_ROW, IS_CONSTRUCTION,
IS_CONFLICT, TYPE, GMPID, BEARING, DISTANCE_LEGAL, DISTANCE_CALCULATED, GEOMETRY, GEOMETRY_XLO, GEOMETRY_XHI,
GEOMETRY_YLO, GEOMETRY_YHI, id1
FROM dbo.BoundaryLine


The trigger is as follows:

CREATE TRIGGER TR_ParcelBoundaries1 on ParcelBoundaries1
INSTEAD OF INSERT
as

BEGIN

INSERT INTO BoundaryLine
(IS_TAXLOT,
IS_OTHER,
IS_CARTOGRAPHIC,
IS_RAILROAD_ROW,
IS_IRRIGATION_ROW,
IS_STREET_ROW,
IS_CLOSING_ROW,
IS_CONSTRUCTION,
IS_CONFLICT,
GMPID,
BEARING,
DISTANCE_LEGAL,
DISTANCE_CALCULATED,
GEOMETRY,
GEOMETRY_XLO,
GEOMETRY_XHI,
GEOMETRY_YLO,
GEOMETRY_YHI)
Select 'YES', 'NO','NO','NO','NO','NO','NO','NO','NO', GMPID, BEARING, DISTANCE_LEGAL,
DISTANCE_CALCULATED, GEOMETRY, GEOMETRY_XLO, GEOMETRY_XHI,
GEOMETRY_YLO, GEOMETRY_YHI
from
inserted

END

Any thoughts would be greatly appreciated?

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Jan 4, 2007

hi,
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Thank you.

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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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Last GASP On Insert Row In Table With Identity Field, And Get New Identity Back ?

Jul 9, 2006

While I have learned a lot from this thread I am still basically confused about the issues involved.

.I wanted to INSERT a record in a parent table, get the Identity back and use it in a child table. Seems simple.

To my knowledge, mine would be the only process running that would update these tables. I was told that there is no guarantee, because the OLEDB provider could write the second destination row before the first, that the proper parent-child relationship would be generated as expected. It was recommended that I create my own variable in memory to hold the Identity value and use that in my SSIS package.

1. A simple example SSIS .dts example illustrating the approach of using a variable for identity would be helpful.

2. Suppose I actually had two processes updating these tables, running at the same time. Then it seems the "variable" method will also have its problems. Is there a final solution other than locking the tables involved prior to updating them or doing something crazy like using a GUID for the primary key!

3. We have done the type of parent-child inserts I originally described from t-sql for years without any apparent problems. (Maybe we were just lucky.) Is the entire issue simply a t-sql one or does SSIS add a layer of complexity beyond t-sql that needs to be addressed?



TIA,



Barkingdog

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Insert Row In Table With Identity Field, And Get New Identity Back

Jun 30, 2006

I want to insert a new record into a table with an Identity field and return the new Identify field value back to the data stream (for later insertion as a foreign key in another table).

What is the most direct way to do this in SSIS?



TIA,



barkingdog



P.S. Or should I pass the identity value back in a variable and not make it part of the data stream?

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Now I have changed the ID column to auto increment seed=1 increment=1 but the problem is i couldn't figure out how to update this ID column with zero value set to each row with this auto increment values so the ID column would have values from 1-50. Is there a away to do this?

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Sep 19, 2005

Ok,I just need to know how to get the last record inserted by the highestIDENTITY number. Even if the computer was rebooted and it was twoweeks ago. (Does not have to do with the session).Any help is appreciated.Thanks,Trint

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Oct 20, 2015

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Is it possible through SSRS designer?

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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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Hi,
I am having problem in bulk update of a sql server table haning identity column from a datatable( has no identity column) using sqlbulkcopy. I tried several approaches, but it does not show any error nor is the table getting updated. But the identity value seems to getting increased every time.
thanks.
varun

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How To Use Identity On Non-identity Column (with Concurrence)

Aug 1, 2014

I'm working with a third-party database (SQL Server 2005) and the problem here is the following:

- There are a bunch of ETL processes that needs to insert rows on a table (let's call this table T) and at the same time, an ERP (owner of T) is up and running (reading, updating and inserting on T).

- The PK of T is an Integer.

Today all ETL processes uses (select max(ID) + 1 from T) to insert new rows, so just picture the scenario. It is a mess! Everyday they get duplicate key error when 2 or more concurrent processes are trying to insert a row (with the max) at the same time.

Considering that I can't change the PK, what is the best approach to solve this problem?

To sum up:

* I need to have processes in parallel inserting on T

* I can't change anything on T

* The PK is NOT an Identity

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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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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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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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I tried this command

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but it doesn't change anything

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

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Aug 3, 2005

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'tblid' table
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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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May 3, 2006

Hello.

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

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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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Oct 27, 2015

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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 ?

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Nov 27, 2000

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Appreciate your help
Ziggy

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Apr 25, 2007

Hi guys,

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ORDER BY WorkStation

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.

SELECT DISTINCT AccountNumber
FROM Suppliers
WHERE AccountNumber Is Not Null
ORDER BY AccountNumber

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
Abridged result:
CHECKDB found 0 allocation errors and 0 consistency errors in database 'POS'.
---
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SELECT DISTINCT WorkStation
FROM #Inv
WHERE WorkStation Is Not Null
ORDER BY WorkStation

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TIA,
Karl.

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Apr 27, 2007

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Feb 28, 2008

Hi all,

One of my columns is the table has some Null values, and I Would like to stop having NULL values into that column any more.

I know, If I alter the column to NOT NULL will throw me an error, since it does a batch update.

Is there any way to achieve this...

Thanks...

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Aug 15, 2006

ok here is a WIERD issue.

I've NEVER EVER had this issue, I have always done this and it works great both locally and remotely.

 

I have a table, which is a "customers" table.

I have a stored procedure which takes in parameters (name, address, password etc...) and returns me back, via a parameter declared as output - the customer ID.

I've always done this, and works great.

Now, this works fine locally.

 

IF I try to run this/do the exact same execution of commands (create a customer) remotely (where the database is stored, so copying everything from local to "over there") it does not work.

I get a DBNULL value back from the parameter, declared as an int output.

 

IF I copy and paste this Stored procedure Query/command into Query Analyzer and execute it (on the remote connection) and run it, giving it the exact same values as I do, it works perfect and returns me the correct value.

 

I've even dropped and recreated the stored procedure but makes no difference.

 

Any ideas why?

 

here is the proc....

 



CREATE PROCEDURE [dbo].[DoCreateNewCustomer] (
@theFirstName nvarchar(25),
@theLastName nvarchar(25),
@theAddress nvarchar(50),
@theCity nvarchar(15),
@thePostCode nvarchar(9),
@thePhoneNumber nvarchar(21),
@theMobilePhoneNumber nvarchar(21),
@theIPAddress nvarchar(25),
@thePassword nvarchar(50),
@theEmailAddress nvarchar(30),
@result int output
)
AS
SET @result = (SELECT [ID] FROM Customers WHERE emailAddress = @theEmailAddress)
IF @result IS NOT NULL 
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ELSE
BEGIN
 SET @result = @@IDENTITY
 INSERT INTO Customers (
 
 Firstname,
 Lastname,
 Address,
 City,
 Postcode,
 PhoneNumber,
 MobileNumber,
 IPAddress,
 [Password],
 EmailAddress
 
 )
 
 VALUES (
 
 @theFirstName,
 @theLastName,
 @theAddress,
 @theCity,
 @thePostCode,
 @thePhoneNumber,
 @theMobilePhoneNumber,
 @theIPAddress,
 @thePassword,
 @theEmailAddress
 )
 
END
GO


 

 

 

Any ideas why it does not work when calling the stored proc from either a web app, or through QA remotely but works fine when I run that command in QA or locally?

 

Again, if I do:

 

EXEC DoCreateNewCustomer { params } - the output result it gives me is DBNULL (if on remote connection)

If I do this locally, perfect

 

If I copy and paste pretty much the SP into QA and execute it on the remote connection, works great, and also locally.

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Hi all,


One of my columns is the table has some Null values, and I Would like to stop having NULL values into that column any more.


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