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How To Use User Defined Function In Stored Procedure?


Hello friends,

           I want to use my user defined function in a stored procedure.

I have used it like ,

select statement where id = dbo.getid(1,1,'abc')

//dbo.getid is a user defined function.



procedure is created successfully but when i run it by exec procedurename parameter



I get error that says

"Cannot find either column "dbo" or the user-defined function or aggregate "dbo.getid", or the name is ambiguous."


Can any body help me?



Rgds,

Kiran.


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I seem to be getting tasks that I am not familiar with these days. I am a
guy that has coded it all in the asp page or in the code behind in .NET.
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<FLOW WITH CODE AND FUNCTIONS :>

This is not the correct syntax but is showing what I understand sort of how
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'PANEL ONE
XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXX----
>

If ValidateInput(Request.Querystring("Postback"))="FormDetails" then 'Check
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--------

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ON SQL SERVER: Stored Procedure

----------------------------------------------------------
--------------------------------

rx_sp_HasAccessToClient

CREATE PROCEDURE [dbo].[ rx_sp_HasAccessToClient]

@EmployeeID INT,

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/*

' Parameters here passed via call from Form.asp - not sure what is passed
yet.

*/

AS

set nocount on

/*

Written by Mike Belcher 9/27/2007 for Form.asp

'Calls ab_HasAccessToClient function - not sure of the syntax as of yet,
just making flow.

'Gets return bit and passes that back to the call from Form.asp

*/

GO

----------------------------------------------------------
--------------------------------

ON SQL SERVER: User-Defined Function

----------------------------------------------------------
--------------------------------

ab_HasAccessToClient

CREATE FUNCTION ab_HasAccessToClient (@employeeID INT, @ClientSSN
VARCHAR(50))

@ClientSSN varchar(50),

@EmployeeID,

@ReturnBitValue = OUTPUT

AS

SELECT 1

FROM tblEmployeesClients ec

INNER JOIN tblClients c ON ec.ClientID = c.ClientSSN

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WHERE e.EmployeeID= @EmployeeID

AND c.InActiveClient=0

AND c.ClientSSN = @ClientSSN

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RETURN @ReturnBitValue 'Back to rx_sp_HasAccessToClient

----------------------------------------------------------
--------------------------------

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XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX XXXXXXXXXXXXXXXXXXXXXX----
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----------------------------------------------------------
--------------------------------

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@ClientSSN varchar(50),

@ReturnBitValue = OUTPUT

/*

' Parameters here passed via call from Form.asp - not sure what is passed
yet.

*/

AS

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/*

Written by Mike Belcher 9/27/2007 for Form.asp

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just making flow.

'Gets return bit and passes that back to the call from Form.asp

*/

GO

----------------------------------------------------------
--------------------------------

ON SQL SERVER: User-Defined Function

----------------------------------------------------------
--------------------------------

ab_HasAccessToClient

CREATE FUNCTION ab_HasAccessToClient (@employeeID INT, @ClientSSN
VARCHAR(50))

@ClientSSN varchar(50),

@EmployeeID,

@ReturnBitValue = OUTPUT

AS

SELECT 1

FROM tblEmployeesClients ec

INNER JOIN tblClients c ON ec.ClientID = c.ClientSSN

INNER JOIN tblEmployees e ON ec.Employee = e.EmployeeLogInName

WHERE e.EmployeeID= @EmployeeID

AND c.InActiveClient=0

AND c.ClientSSN = @ClientSSN

'Some Code here to save result bit ..

RETURN @ReturnBitValue 'Back to rx_sp_HasAccessToClient

----------------------------------------------------------
--------------------------------

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5. Expression expected (in Line 16 of Form1.vb)
============================================================
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RETURN
END

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User Defined Function
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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RE-User Defined Function (2nd)
Can someone help me please, I have this function and it returns hours between 8h00 and 16h00 during the week

The help I need is, I need to return minutes instead of hours and it must not return any minutes in the following holiday table since we are not working
Holiday
2004-08-09 00:00:00.000
2004-09-24 00:00:00.000
2004-12-16 00:00:00.000
2004-12-26 00:00:00.000
2004-12-25 00:00:00.000
2005-01-01 00:00:00.000


CREATE FUNCTION dbo.fn_CalculateHours
(@DateFrom datetime, @DateTo datetime)
RETURNS int
AS
BEGIN
DECLARE @hFrom int, @hTo int
SET @DateFrom = (CASE DATEPART(weekday,@DateFrom)
WHEN 1 THEN CONVERT(varchar(10),DATEADD(day,1,@DateFrom),120) + ' 08:00:00'
WHEN 7 THEN CONVERT(varchar(10),DATEADD(day,2,@DateFrom),120) + ' 08:00:00'
ELSE @DateFrom
END)
SET @DateTo = (CASE DATEPART(weekday,@DateFrom)
WHEN 1 THEN CONVERT(varchar(10),DATEADD(day,-2,@DateTo),120) + ' 16:00:00'
WHEN 7 THEN CONVERT(varchar(10),DATEADD(day,-1,@DateTo),120) + ' 16:00:00'
ELSE @DateTo
END)
SELECT @hFrom = DATEPART(hour,@DateFrom)
SELECT @hTo = DATEPART(hour,@DateTo)
RETURN ((DATEDIFF(day,@DateFrom,@DateTo) - (DATEDIFF(week,@DateFrom,@DateTo) * 2) - 1) * 8) +
(CASE WHEN @hFrom < 8 THEN 8
WHEN @hFrom > 16 THEN 0
ELSE 16 - @hFrom
END) +
(CASE WHEN @hTo < 8 THEN 0
WHEN @hTo > 16 THEN 8
ELSE @hTo - 8
END)
END

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User Defined Function Help?
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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User Defined Function
I only just been given this job as SQL server 7 "administrator". One of the many problems I am facing is trying to find out a way to write user defined functions - one of the millions of things you can do easily with Oracle. I have heard the rumours that SQL 7 does NOT come with "User Defined Functions" as a features. Please tell me this is not true.

And if it is true, please can anyone tell me a way to get around this?

Many thanks in advance

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User Defined Function
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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User Defined SQL Function
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

I need myFunc(x,y) to return a value, not a recordset and use that value in the select statement. Any and all ideas would be appreciated.

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XML And User Defined Function
Hi,

Please answer to the following questions:
Q1. Is there any way to get text data type from a user defined function ?

Q2. How can result of a select query with "FOR XML RAW" clause be converted into a single string?

-----------
Background of the above 2 questions:

I want to execute a simple select query which besides selecting different columns also calls a user defined function which should execute a select query and return back the result as XML string to the calling select query.

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User Defined Function
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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Need Help With User Defined Function
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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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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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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Hi,How to exec a SQL user defined function in query analyzer when it accepts parameters.. I know for a stored procedure we can write EXEC nameofstored procedure abc (@abc is the parameter passed).. But How to run a SQL function ?Thanks

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Sp_ExecuteSQL In User Defined Function
This is driving me crazy.I need to create a UDF that would return a TRUE/FALSE (bit) value basedon a comparison it does.CREATE FUNCTION dbo.SelectedByApplication(@ApplicationID int,@TableToChecknvarchar(50),@ColumnToComparenvarchar(50),@ValueInTableint)RETURNS BIT ASBEGINDECLARE @SQLNVARCHAR(1000)DECLARE @Param NVARCHAR(500)DECLARE @Result intSET @SQL = N'SELECT @result = COUNT(*) FROM [' + @TableToCheck + '] '+'WHERE [' + @ColumnToCompare + '] = @ValueInTable ANDApplicationID = @ApplicationID'SET @Param = N'@result int out, @ValueInTable int, @ApplicationIDint'EXECUTE sp_executesql @SQL, @Param, @result out, @ValueInTable,@ApplicationIDif @result > 0return 1return 0ENDAll I need the function to do is fill in a column based on whetherthere is a relation between a list of data and the item. I'm trying touse it in the following query:SELECT *, EXEC dbo.SelectedByApplication(4, 'IPM_Application_DataType','DataTypeID', DataTypeID)FROM IPM_DataType DTThe idea is to make this call and then be able to populate a list ofcheckboxes based on the information it returns. It should returnsomething similiar to:Column1 Column2 UDFColumn1 SomeValue 02 OtherValue 13 DifferentValue 04 LastValue 1After reading some of the posts and discovering you can't executedynamic SQL in a UDF I decided to split the function into a functionand stored procedure:CREATE FUNCTION dbo.SelectedByApplication(@ApplicationID int,@TableToChecknvarchar(50),@ColumnToComparenvarchar(50),@ValueInTableint)RETURNS BIT ASBEGINDeclare @Result INTEXEC DynamicCompare @ApplicationID, @TableToCheck, @ColumnToCompare,@ValueInTable, @Resultif(@Result > 0)return 1return 0ENDCREATE PROCEDURE dbo.DynamicCompare(@ApplicationID int,@TableToChecknvarchar(50),@ColumnToComparenvarchar(50),@ValueInTableint,@Resultint out)ASDECLARE @SQLNVARCHAR(1000)DECLARE @Param NVARCHAR(500)SET @SQL = N'SELECT @result = COUNT(*) FROM [' + @TableToCheck + ']' +'WHERE [' + @ColumnToCompare + '] = @ValueInTable ANDApplicationID = @ApplicationID'SET @Param = N'@result int out, @ValueInTable int, @ApplicationIDint'EXECUTE sp_executesql @SQL, @Param, @result out, @ValueInTable,@ApplicationIDI get the same error message about only being able to execute functionsand extended stored procedures in a user defined function.Does anyone have any ideas as to how I can dynamically execute thisquery? The reason I say dynamic is I need this same comparison forabout 25 different tables. Thanks!

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Calling User-defined Function Without 'dbo.' -- Possible?
Is it possible to call a user-defined function without prefixing itwith 'dbo.' within a SELECT clause somehow? Just curious; it's not abig issue but just a stylistic one for me.Thanks!Joel Thornton ~ <groups@joelpt.eml.cc>

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User Defined Function Issue
I have a user defined function that may be called multiple times inthe same query - here's a rough exampleselect col1, get_random_number(), col2, col3, get_random_number() fromtable1The problem I am having is that I need to have both calls to the userdefined function return the same value if it is called multiple timesfor one row. The values returned from the query would be somethig likethis -John 23456 Engineer Junior 23456Frank 33333 Engineer Senior 33333Tom 80331 Engineer Junior 80331I have thought about having two seperate udf's likeget_random_number() and use_last_random_number(), but I'm not sure howto store the value of the get_random_number() to be used byuse_last_random_number(). These udfs are used in bulk load requests,so performance is a big issue. Any suggestions would be greatlyappreciated. I know the example is kind of silly, but I think itillustrates the problem.

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GETDATE() With A User Defined Function
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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Getdate() In User Defined Function
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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User Defined Function Obsolete
Hi,


sometimes after modifying a UDF (for example adding a column to the output) the statements refer it raise an error like the function has never been modifying , than in the previous example sql server doesn't find the last added column.

If I reapply the "alter" statement script of the function all works fine.It seams there is a sort of internal cache that need to be updated ...

Nobody have never been founding a similar behavior? :confused:


Thx

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User Defined Function Problem
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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Need Help Optizing A User Defined Function
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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User Defined Function Library
Dave writes "Anybody knows of a good resource for "generic" SQL Server User Defined Functions ?"

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User Defined Aggregat-Function
 

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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