Storing Variables From A User-defined Function

Jul 20, 2005

I've looked all over but can't find a solid answer. I've got a
function that runs from a View and when the function runs the first
time it is calculating a Temperature for a group of Formulas. What I
want to do is calculate this temperature in the UDF on the first pass
and store it somewhere (table, global variable etc.). On every
execution after that I'd like to use the value stored so I don't have
to recalculate the value again for the specific group defined.

I've looked at storing the data in a table from the UDF but UDF's
don't support dynamic SQL statements and can't run a stored procedure.
The key here is we have a view that calls a UDF (user-defined
function). Using SQL 2000.

Any ideas would be very helpful. Thanks.

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User Defined Variables

Jan 5, 2007

I am running a procedure that declares a table with a user defined variable called ZipCodes8000. This datatype is on the systypes table as a valid datatype that we created. Here is the code and the error that is returned. Can anyone help me understand why I receive the error that I do.

Code:

DECLARE @SortPlanBinZipCodeRanges TABLE
(
SortPlanBinZipCodeRangeIDINT IDENTITY (1, 1) NOT NULL,
SortPlanBinID INT NULL,
SortPlanID INT NULL,
BinTypeID TINYINT NULL,
BinFlagTypeID TINYINT NULL,
BinNumber INT NULL,
ZipCodeRanges ZipCodes8000 NULL
)


error:
Msg 2715, Level 16, State 7, Line 1
Column or parameter #7: Cannot find data type ZipCodes8000.

Thank you in advance.

Todd

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Mar 24, 2004

I'm having a problem declaring variables in UDFs. Are they allowed? Can someone send me some syntax to see what I am doing wrong?

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Aug 1, 2005

I have this function in access I need to be able to use in ms sql.  Having problems trying to get it to work.  The function gets rid of the leading zeros if the field being past dosn't have any non number characters.For example:TrimZero("000000001023") > "1023"TrimZero("E1025") > "E1025"TrimZero("000000021021") > "21021"TrimZero("R5545") > "R5545"Here is the function that works in access:Public Function TrimZero(strField As Variant) As String   Dim strReturn As String   If IsNull(strField) = True Then      strReturn = ""   Else      strReturn = strField      Do While Left(strReturn, 1) = "0"         strReturn = Mid(strReturn, 2)      Loop   End If  TrimZero = strReturnEnd Function

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Dec 4, 2007

I am a SSIS novice, and need help to do the following:

Every day a Table is generated by the system of format XR+present Year + present month + present day. My task is pretty simple. I am to devise a SSIS package that will import this table on to a different server.

I have defined the variable as user defined variable. I am also able to specify the variable in OLE db source editor -> Data Access Mode : Table name or view name variable. When I am click the 'Columns' feature, I get the following error

TITLE: Microsoft Visual Studio
------------------------------
Error at Data Flow Task [OLE DB Source [1]]: SSIS Error Code DTS_E_OLEDBERROR. An OLE DB error has occurred. Error code: 0x80040E37.
Error at Data Flow Task [OLE DB Source [1]]: Opening a rowset for "xr+ convert(char(8),getdate(), 112)" failed. Check that the object exists in the database.
------------------------------
ADDITIONAL INFORMATION:
Exception from HRESULT: 0xC02020E8 (Microsoft.SqlServer.DTSPipelineWrap)
------------------------------
BUTTONS:
OK
------------------------------

In short can any one tell me a correct way of using a table name as variable in
Data Access Mode : Table name or view name variable ?

One other question: can I make use of a dynamic SQL in Execute SQL Task? If yes, how do I write the query

exec( 'select * from ' + @table)

or just

select * from @table

Any suggestions will be appreciated.






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Mar 22, 2006

Got some errors on this one...

Is Rand function cannot be used in the User Defined function?
Thanks.

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Jan 10, 2007

I have a UDF that takes my input and returns the next valid business day date. My valid date excludes weekends and holidays.
It works perfect except for one issue. It doesn't check to see if today's date  is a holiday.
I pass a query to sql server like so " select dbo.getstartdate('01/ 10/2007',2)"
It then moves ahead two business days and returns that date.
Here is the current code. Hopefully someone can tell me how to do the holiday check on the current date.
I really don't want to rewrite the whole script .
Code---------------------------------------------------------
SET QUOTED_IDENTIFIER OFF GOSET ANSI_NULLS OFF GO
--DROP FUNCTION GetStartDate
--declare function receiving two parameters ---the date we start counting and the number of business days
CREATE  FUNCTION GetStartDate (@startdate datetime, @days int)   RETURNS datetimeASBEGIN
--declare a counter to keep track of how many days are passingdeclare @counter int
/*Check your business rules.  If 4 business days means you count starting tomorrow, set counter to 0.  If you start counting today, set counter to 1*/set @counter = 1
--declare a variable to hold the ending datedeclare @enddate datetime
--set the end date to the start date.  we'll be -- incrementing it for each passing business dayset @enddate = @startdate
/*Start your loop.While your counter (which was set to 1), is less than or equal to the number of business days increment your end date*/WHILE @counter <= @days
BEGIN
--for each day, we'll add one to the end dateset @enddate = DATEADD(dd, 1, @enddate)
   --If the day is between 2 and 6 (meaning it's a week   --day and the day is not in the holiday table, we'll    --increment the counter   IF (DATEPART(dw, @enddate) between 2 and 6) AND       (@enddate not in           (           select HolidayDate            from tFederalHoliday            where [HolidayYear] = datepart(yyyy,@enddate)         )       )   BEGIN      set @counter = @counter + 1   END
--end the while loopEND
--return the end dateRETURN @enddate
--end the functionEND
GOSET QUOTED_IDENTIFIER OFF GOSET ANSI_NULLS ON GO
---------------------------------------------------------------------------------------------

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Aug 17, 2005

Hi everyone,
    I am tring to pass acomma delimited string to a function  and this function is parsing the string so that I can see individual values so for example I am passing 1,2,3,4,5 as a parameter to my function and I am parsing this string so that I can write something like this
Select * from tableA where userID in(1,2,3,4)
It is working fine. Only problem is if the user passes word 'all' instead of 1,2,3,4 then I have to doSelect * from tableA
My function looks like this.  How can I modify this function if I pass 'all' as a paramater. Any help will be appreciated.CREATE FUNCTION [dbo].[ParseText2File] (@p_text varchar(4000), @p_Delimeter char(1))
RETURNS @results TABLE (id varchar(100))
AS
BEGIN
declare @i1 varchar(200)
declare @i2 varchar(200)
declare @tempResults Table (id varchar(100))
while len(@p_text) > 0 and charindex
(@p_Delimeter, @p_text) <> 0
begin
select @i1 = left(@p_text, charindex(@p_Delimeter, @p_text) - 1)
insert @tempResults select @i1
select @p_text = right(@p_text, len(@p_text) - charindex(@p_Delimeter,@p_text))
end
insert @tempResults select @p_text
insert @results
select *
from @tempResults
return
END
Thanks

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Dec 14, 1999

How can I create a user defined function in SQL and call it inline from a SQL statement? I need the ability to execute a statement such as:

select myFunc(x,y) from table

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Aug 2, 1999

Dear friends,

I am a new user for SQL server. Coming from an oracle background, I find it very difficult to live without user defined functions. At the moment, I urgently need to have a function returning an custom-made ID string, so that it can be used in one of my stored procedures. I have heard the rumours that SQL server 7 does NOT support user defined functions, (which SQL 6.5 does). I would be really grateful if anyone can clarify this for me, and if possible, suggest a get-around approach.

Thanks in advance!

Kai

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Jun 23, 2004

I am trying to compare the data from one table (shipments) with the data from a view. The point of the function is to match the correct territory with the account depending on the data. Basically, I this deals with accounts that are transfering from one territory to another. The transfers take effect on the first day of the month, retroactive, therefore we need to allocate the sales data to the correct territory in the shipments table. Here is my function. Can someone tell me how I can get this to work and insert a territory ID for the account that has transfered into the shipments table?

CREATE FUNCTION fnShipments ()
RETURNS @Shipments TABLE (AccountID CHAR(10), DateInvoice DateTime, DollarShipments Money, TerritoryID CHAR(10))
AS
BEGIN
INSERT @Shipments (AccountID, DateInvoice, DollarShipments, TerritoryID)
SELECT Shipments.AccountID, Shipments.DateInvoice, DollarShipments, ISNULL((SELECT TerritoryID FROM vwAccountTransfers

WHERE Shipments.AccountID = vwAccountTransfers.AccountID

AND vwAccountTransfers.EffectiveMonth =

(SELECT MIN(EffectiveMonth)
FROM vwAccountTransfers

WHERE Shipments.AccountID = vwAccountTransfers.AccountID
AND DatePart(m,Shipments.DateInvoice) < vwAccountTransfers.EffectiveMonth)),
(SELECT TerritoryID FROM vwAccountTransfers
WHERE Shipments.AccountID = vwAccountTransfers.AccountID
AND vwAccountTransfers.EffectiveMonth Is Null )
) AS Territory
FROM Shipments

ORDER BY Shipments.AccountID, Shipments.DateInvoice;
RETURN
END

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Nov 10, 2004

I need a UDF that will do the following:

User: Will be sending me a datetime e.g '9 Nov 2004 15:00:00'
I want the UDF to do the following for me
Return in hours the difference between what the user has send and now (lets say now = '10 Nov 2004 11:00:00')
So the UDF will return to me 20.
But I dont want 20, I want the UDF to avoid any all hours which are not work related (any time after 16h00
until 8h00 in the morning), so I want this UDF to return 4. That means from '9 Nov 2004 15:00:00' I have calculated
1hr until 16h00 and 3hrs from 8 until 11h00 on '10 Nov 2004 11:00:00'

AGAIN IT MUST NOT CALCULATE WEEKENDS. Lets say '12 Nov 2004 15:00:00' was Friday and now = '15 Nov 2004 11:00:00', I must still
get 4 as a return from UDF

I would also like now to be my getdate(), but it seems like you can't use it in UDF

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Mar 20, 2004

I create the following UDF just for learning purposes and I cannot seem to get it to return a value.

Stored Procedure

REATE PROCEDURE usp_GetXSection

@fWidth float,
@fHeight float,
@fResult float OUTPUT

AS
BEGIN
set @fResult = [dbo].[XSECTION](@fWidth, @fHeight)
END
GO


Ane the following UDF


CREATE FUNCTION XSECTION
(@Width float, @Height float)
RETURNS float
AS
BEGIN
RETURN (@Width * @Height)
END


I call it using ADO in a c++ application, but all returns empty

Any ideas? C++ code to follow.

Mike B


void CFormTemplateSetup::OnCalculate()
{
_CommandPtr pCmd(__uuidof(Command));
_ParameterPtr pWidth(__uuidof(Parameter));
_ParameterPtr pHeight(__uuidof(Parameter));
_ParameterPtr pResult(__uuidof(Parameter));

try
{
pCmd->ActiveConnection = GetDocument()->GetConnection();
pCmd->CommandText = _T("usp_GetXSection");
pCmd->CommandType = adCmdStoredProc;

_variant_t vWidth, vHeight;
vWidth.vt = VT_R4;
vHeight.vt = VT_R4;

vWidth.fltVal = 10;
vHeight.fltVal = 10;

pWidth = pCmd->CreateParameter(_T("@fWidth"), adInteger, adParamInput, sizeof(int), vWidth);
pHeight = pCmd->CreateParameter(_T("@fHeight"), adInteger, adParamInput, sizeof(int), vHeight);
pResult = pCmd->CreateParameter(_T("@fResult"), adDouble, adParamOutput, sizeof(float), vtMissing);

pCmd->Parameters->Append(pWidth);
pCmd->Parameters->Append(pHeight);
pCmd->Parameters->Append(pResult);

_variant_t vResult = pResult->Value;

float fArea = pResult->Value.fltVal;
CString csArea;
csArea.Format("Area = %d", fArea);

::AfxMessageBox(csArea);
}
catch(_com_error& e)
{
::AfxMessageBox(e.Description());
}
}

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Apr 17, 2007

Hi,
Iam working on one user defined function which will take week & year as argument and returns sunday date of that particular week in that year. for example if i give (15,2007) as argument it shud give 2007-04-08 as result. Plz anybody help this on this issue.

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Apr 6, 2006

I am accustomed to doing most of my function work in Access, but the boss would really like it if I could shedule some cubes to do the stuff that takes forever when you run it live.

To that end, I have an Access function that I call to get a field value for a query. I would like to be able to create an User Defined Function on the SQL server and call that function as a field value in a view. I have searched the forums and have not really found anything that wants to make sense to me as to how to do this.

The access function is as follows:

Public Function BuyerDeltas(IFSDate As Date, PODate As Date) As Long

If IFSDate < (Date + 14) Then
BuyerDeltas = IFSDate - 3 - PODate
ElseIf IFSDate < (Date + 29) Then
BuyerDeltas = IFSDate - 7 - PODate
ElseIf IFSDate > (Date + 28) Then
BuyerDeltas = IFSDate - 10 - PODate
Else
MsgBox "This should not be possible!", vbOKOnly, "Fix It!!!!!!!"
End If

End Function

The view that this is called from contains the IFSDate and PODate fields and I am able to call the function from the access query, but this is completely different than what I have seen in the help files on SQL.

I would love to be able to keep plugging away at doing this myself, but the boss also is pushing me to get it done and he doesn't want me taking forever to do it.

Any direction would be greatly appreciated!

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Aug 28, 2007

hai,
the problem is - I have created a userdefined function using SQL 2000
create function  getfulldate (@date varchar(10))returns datetimeasbegindeclare @getfulldate datetime set @getfulldate  = dateadd (mi,55,@date)
return @getfulldateend
and normally we call this in the SQL statements as
select *, dbo.getfulldate('2006-05-03')  from emp
This works fine and what I need was, I need to invoke the user-defined function like
select *, getfulldate('2006-05-03')  from emp    that is, without using "dbo".
If I call in that manner, it gives error as - 'getfulldate' is not a recognized function name.
So, here what is the purpose of dbo and can I call in my desired manner as mentioned above.
anyone guide me, thanks!

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Aug 4, 2005

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Feb 28, 2006

I have  a sproc that passes an ID to a user defined function. I just realized that the udf can only return scalar type value. I need it to return a varchar(10). How can i do this with similiar functionality. Any ideas?  

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Jun 9, 2004

Hi,

I have a requirement where i need to get the current time/date within a Function. As getDate function is a non deterministic function it can not be used with in a function. Your guidence in this regard is greately appreciated.

Regards,
Samcute.

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Aug 13, 2004

Hi,

It is possible to use getdate() in userdefined function. If so, how to do the same ?

The following code throws error :

create function function1
return varchar
DECLARE @currYYMM VARCHAR(20)
SET @currYYMM = convert(char(4),getdate(),12)
// Here it says the error 'getdate' can't be used inside functions
...............
.....................

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Nov 1, 2006

Hi,
While i execute the followgin code. it gives error. Please resolve it as while calling the function i want to use getdate() or any other dynamic variable or any select such as

select title from SalesByStore( select admission_Dte from addmission )

It gives error.

--------------------------------------------------------------------------
use pubs
go

createFUNCTION SalesByStore (@storeid datetime)
RETURNS TABLE
AS
RETURN (SELECT top 5 title, qty
FROM sales s, titles t

)
go


select title from SalesByStore(getdate())

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Mar 3, 2004

Hi,
I posted a question sometime back about any one has written a function which converts a given date to a a new timezone.

As it turns out I have actually written the function and it is functionally sound.

the issue I am not facing is the performace.

The Algorithm is pretty simple.
step 1
I have create a table called TZ1 which has the TImezoneCODE (PST,EST..), daylightsavingsstart (DATETIME on which the daylight savings start), daylightsavingsend ( end of DLS) and offset (EG -8 for PST, -5 for EST etc)

step 2
I check the timezone and pick out corresponding start and enddate for daylight savings.

Step 3
Depending on where the date lies I create a new date by adding offset to the original datetime (+1) for the new date and then return this new datetime.

As simple as this looks the response time is 16 times than that of a select statement without the function.

Do you see something that I can tune to get a better response time.

Heres my code


================================================== ================================================== ================================================== ================================================== ==================================

CREATE FUNCTION TC3
-- drop function tc3
(@dt datetime, @Src varchar(10), @Dest varchar(10))
Returns datetime
begin
declare @v_src varchar(10)
Declare @v_dest varchar(10)
declare @V_dt datetime
declare @v_newdt datetime
declare @v_year int
declare @v_offset float
declare @v_sd datetime
declare @v_ed datetime

-- select * into TZ1 from TZ1
-- create table #tz1 (fn int)

select @v_year = datepart (year, @dt)

if (@v_year between 2000 and 2004)
begin
-- -------------------
-- PST BEgin
-- -------------------
if (@dest = 'PST')
begin
-- select * from TZ1
select @V_year = datepart (year, @dt)

select @v_offset = offset,
@v_sd = daylightsavingsstart,
@v_ed = daylightsavingsend
from TZ1
where
@V_YEAR = YEAR
and timezonecode = @dest
-- AND @DT between daylightsavingsstart and daylightsavingsend

if (@dt between @v_sd and @v_ed )
begin
-- ( select @v_newdt = dateadd (hh, -9, @dt) )
select @v_newdt = dateadd (hh, CAST( @v_offset as int)-1 , @dt)
end
else
begin
-- ( select @v_newdt = dateadd (hh, -8, @dt) )
select @v_newdt = dateadd (hh, @v_offset, @dt)
end -- if dt between daylight savings

return @v_newdt
end -- @dest=pst end
-- -------------------
-- PST END
-- -------------------
-- -------------------
-- EST BEGIN
-- -------------------

ELSE

if (@dest = 'EST')
begin

select @V_year = datepart (year, @dt)

select @v_offset = offset,
@v_sd = daylightsavingsstart,
@v_ed = daylightsavingsend
from TZ1
where
@V_YEAR = YEAR
and timezonecode = @dest

if (@dt between @v_sd and @v_ed )
begin
-- ( select @v_newdt = dateadd (hh, -9, @dt) )
select @v_newdt = dateadd (hh, CAST( @v_offset as int)-1 , @dt)
end
else
begin
-- ( select @v_newdt = dateadd (hh, -8, @dt) )
select @v_newdt = dateadd (hh, @v_offset, @dt)
end -- if dt between daylight savings


return @v_newdt

end -- @dest=Est end

-- -------------------
-- EST END
-- -------------------

-- -------------------
-- HST BEgin
-- select * from timezones
-- -------------------
else
if (@dest = 'HST')
begin

select @V_year = datepart (year, @dt)

select @v_offset = offset,
@v_sd = daylightsavingsstart,
@v_ed = daylightsavingsend
from TZ1
where
@V_YEAR = YEAR
and timezonecode = @dest

if (@dt between @v_sd and @v_ed )
begin
-- ( select @v_newdt = dateadd (hh, -9, @dt) )
select @v_newdt = dateadd (hh, CAST( @v_offset as int) , @dt)
end
else
begin
-- ( select @v_newdt = dateadd (hh, -8, @dt) )
select @v_newdt = dateadd (hh, @v_offset, @dt)
end -- if dt between daylight savings


return @v_newdt

end -- @dest=Ast end

-- -------------------
-- HST END
-- -------------------

-- -------------------
-- MST BEgin
-- select * from timezones
-- -------------------
else
if (@dest = 'MST')
begin

select @V_year = datepart (year, @dt)

select @v_offset = offset,
@v_sd = daylightsavingsstart,
@v_ed = daylightsavingsend
from TZ1
where
@V_YEAR = YEAR
and timezonecode = @dest

if (@dt between @v_sd and @v_ed )
begin
-- ( select @v_newdt = dateadd (hh, -9, @dt) )
select @v_newdt = dateadd (hh, CAST( @v_offset as int)-1 , @dt)
end
else
begin
-- ( select @v_newdt = dateadd (hh, -8, @dt) )
select @v_newdt = dateadd (hh, @v_offset, @dt)
end -- if dt between daylight savings

return @v_newdt

end -- @dest=Mst end

-- -------------------
-- MST END
-- -------------------

else
return '19990909'
end -- year end

return @v_newdt


end





================================================== ================================================== ================================================== =============================================

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Jul 12, 2002

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Jul 20, 2005

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Jun 1, 2006

Hi,

How can I do dynamical exec to query in user-defined function? At the end I need to return the result.

Thank's
Alexei

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BTW I tried using a lookup task with a SQL command before the UDF idea occurred to me and ran into problems using parameters in the SQL query:

Parameter Information cannot be derived from SQL statments. Set parameter information before preparing command.

I've seen the posts about going to the advanced tab and messing with the parameters there but I was hoping using a UDF would be easier, if it can be done.

Thanks.

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Dec 7, 2007



Hi,
I'm trying to write an aggregat in c#.It's no problem for sum or multiplication aggregates.
But when I try to use an array to stor the values in it, to compare them with each other,
I get the Message:



Fehler 1 Type "AggregatClr.AggregatClr" is marked for native serialization, but field "Werte" of type "AggregatClr.AggregatClr" is of type "mscorlib.System.Array" which is a non-value type. Native serialization types can only have fields of blittable types. If you wish to have a field of any other type, consider using different kind of serialization format, such as User Defined Serialization. AggregatClr

And when I try it with User Defined instead of Native:

Fehler 1 Type "AggregatClr.AggregatClr" is marked for user-defined serialization, but does not implement the "System.Data.Microsoft.SqlServer.Server.IBinarySerialize" interface. AggregatClr



What does that means? How can I do that??
Is it possible to use an Array in a User Defined Aggregat??
Thanks

Pam

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Problem With User Defined Function

May 3, 2006

I wrote a UDF to get a rolling average based upon a date passed to the UDF. The error I get is:

Server: Msg 102, Level 15, State 1, Procedure fn_RollAverage, Line 26
Incorrect syntax near ')'.

SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS OFF
GO



CREATE FUNCTION fn_RollAverage(@CURVE_DATE AS SMALLDATETIME)
RETURNS @TBLRESULT TABLE
(US0001M_Index AS FLOAT,
US0003M_INDEX AS FLOAT,
US0006M_INDEX AS FLOAT,
US0012M_INDEX AS FLOAT,
usswap2_index AS FLOAT,
usswap3_index AS FLOAT,
usswap4_index AS FLOAT,
usswap5_index AS FLOAT,
usswap6_index AS FLOAT,
usswap7_index AS FLOAT,
usswap8_index AS FLOAT,
usswap9_index AS FLOAT,
usswap10_index AS FLOAT,
usswap11_index AS FLOAT,
usswap12_index AS FLOAT,
usswap13_index AS FLOAT,
usswap14_index AS FLOAT,
usswap15_index AS FLOAT,
usswap20_index AS FLOAT,
usswap25_index AS FLOAT,
usswap30_index AS FLOAT)


AS BEGIN

DECLARE @BEG_DATE AS SMALLDATETIME

SET @BEG_DATE = (@CURVE_DATE - 30)

INSERT @TBLRESULT(
US0001M_Index,
US0003M_INDEX,
US0006M_INDEX,
US0012M_INDEX,
usswap2_index,
usswap3_index,
usswap4_index,
usswap5_index,
usswap6_index,
usswap7_index,
usswap8_index,
usswap9_index,
usswap10_index,
usswap11_index,
usswap12_index,
usswap13_index,
usswap14_index,
usswap15_index,
usswap20_index,
usswap25_index,
usswap30_index)

SELECT
AVG(US0001M_Index) AS US0001M_Index,
AVG(US0003M_INDEX) AS US0003M_INDEX,
AVG(US0006M_INDEX) AS US0006M_INDEX,
AVG(US0012M_INDEX) AS US0012M_INDEX,
AVG(usswap2_index) AS usswap2_index,
AVG(usswap3_index) AS usswap3_index,
AVG(usswap4_index) AS usswap4_index,
AVG(usswap5_index) AS usswap5_index,
AVG(usswap6_index) AS usswap6_index,
AVG(usswap7_index) AS usswap7_index,
AVG(usswap8_index) AS usswap8_index,
AVG(usswap9_index) AS usswap9_index,
AVG(usswap10_index) AS usswap10_index,
AVG(usswap11_index) AS usswap11_index,
AVG(usswap12_index) AS usswap12_index,
AVG(usswap13_index) AS usswap13_index,
AVG(usswap14_index) AS usswap14_index,
AVG(usswap15_index) AS usswap15_index,
AVG(usswap20_index) AS usswap20_index,
AVG(usswap25_index) AS usswap25_index,
AVG(usswap30_index) AS usswap30_index

FROM dbo.LiborSwap
WHERE CURVE_DATE BETWEEN @BEG_DATE AND @CURVE_DATE

RETURN
END

GO
SET QUOTED_IDENTIFIER OFF
GO
SET ANSI_NULLS ON
GO

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CLR User Defined Aggregate Function

Oct 4, 2006

I am trying to modify the C# example given in the "Invoking CLR User-Defined Aggregate Functions" in SQL Server 2005 Books Online. I want to add a parameter that is used as the list delimeter, instead of the hard coded comma that is used. I am not a C# programmer and don't know where to begin. Please help!

using System;
using System.Data;
using Microsoft.SqlServer.Server;
using System.Data.SqlTypes;
using System.IO;
using System.Text;

[Serializable]
[SqlUserDefinedAggregate(
Format.UserDefined, //use clr serialization to serialize the intermediate result
IsInvariantToNulls = true, //optimizer property
IsInvariantToDuplicates = false, //optimizer property
IsInvariantToOrder = false, //optimizer property
MaxByteSize = 8000) //maximum size in bytes of persisted value
]
public class Concatenate : IBinarySerialize
{
/// <summary>
/// The variable that holds the intermediate result of the concatenation
/// </summary>
private StringBuilder intermediateResult;

/// <summary>
/// Initialize the internal data structures
/// </summary>
public void Init()
{
this.intermediateResult = new StringBuilder();
}

/// <summary>
/// Accumulate the next value, not if the value is null
/// </summary>
/// <param name="value"></param>
public void Accumulate(SqlString value)
{
if (value.IsNull)
{
return;
}

this.intermediateResult.Append(value.Value).Append(','); /// I want to change to comma to a variable
}

/// <summary>
/// Merge the partially computed aggregate with this aggregate.
/// </summary>
/// <param name="other"></param>
public void Merge(Concatenate other)
{
this.intermediateResult.Append(other.intermediateResult);
}

/// <summary>
/// Called at the end of aggregation, to return the results of the aggregation.
/// </summary>
/// <returns></returns>
public SqlString Terminate()
{
string output = string.Empty;
//delete the trailing comma, if any
if (this.intermediateResult != null
&& this.intermediateResult.Length > 0)
{
output = this.intermediateResult.ToString(0, this.intermediateResult.Length - 1);
}

return new SqlString(output);
}

public void Read(BinaryReader r)
{
intermediateResult = new StringBuilder(r.ReadString());
}

public void Write(BinaryWriter w)
{
w.Write(this.intermediateResult.ToString());
}
}

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Using A User Defined Function From A OLE DB Command

Feb 18, 2008



Hi all, I've tried all types of formats use this function and coming up with errors
the function works fine in SQL so not sure of the proper format to call a function with variaibles

have tried
EXEC EquivalentCase = dbo.udfEquivalentCase(@ConversionValue1= ?,@ConversionValue2 = ?, @CasesSold = ?, @CasesSold=?, @OwnershipCode = ?, @BusSegCode = ? )

and
dbo.udfEquivalentCase(?,?,?,?,?)

and
select
dbo.udfEquivalentCase(?,?,?,?,?)

is there somewhere that provides proper syntax for executing a user defined function from a OLE DB command?
Thanks



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Cannot Find Either Column Dbo Or The User-defined Function

Oct 14, 2007

 Hi, I have a stored procedure that calls a scalar function.  It works fine on my development database, but on my production database, I get this error when trying to execute the procedure: Cannot find either column "dbo" or the user-defined function or aggregate "dbo.MyFunction", or the name is ambiguous. However, I am able to execute the function outside of the procedure like this: select dbo.MyFunction(0, 0)  Anyone have idea? I can't figure it out.    

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