User-Defined Aggregates With Parameters
Mar 25, 2008
I have to write an aggregate which accumulates values in a relation to a parameter. Therefore I tried to create an aggregate with an additional input parameter.
While creating the aggregate, I get the following error message:
CREATE AGGREGATE failed because type 'MKT' does not conform to UDAGG specification due to method 'Accumulate'.
Does anybody know, how I could solve this?
Public Sub Accumulate(ByVal value As SQLDouble, ByVal param1 as SQLDouble)
Const uGK as double = 0.008
result = result + Math.Exp(-param1/(uGK *value) )
End Sub
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Oct 12, 2006
Hi all!
I have created (in CLR) a user defined aggregate. The scan order of this aggregate is important, because it return different results for different orders.
When i use it with a single group (using order by and where) is working fine.
For example
select id, dbo.cmp(myclolumn) as myres from (select top 100 percent * from mytable order by id,clmdate) where id=10 group by id
This works correctly. Now lets expand it by removing where id=10 clause
select id, dbo.cmp(myclolumn) as myres from (select top 100 percent * from mytable order by id,clmdate) group by id
I get slightly different results from what the right result must be.
Any idea?
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Jul 23, 2005
Hi,I am trying to call a user defined function(UDF) from a stored proc,using a default parameter in the called UDF (e.g. @bid_price_type int= 0 ). However the calling stored proc complains that the UDF isexpecting a 2nd parameter when I only provide the @test parametervalue. Are default parameter values supported in UDF's?I wld really appreciate anybody's help. Thankyou in advance.UDF code:CREATE FUNCTION get_bid_price (@test int, @bid_price_type int = 0)RETURNS decimal(18, 4) ASBEGINdeclare @x decimal(18, 4)if (@bid_price_type = 0)beginselect @x = fieldNamefromtableNameendelsebeginselect @x = fieldName2fromtableName2endreturn @xEND' Calling Stored Proc codeCREATE PROCEDURE testASdeclare @x decimal(18, 4)set @x = dbo.get_bid_price(1)select @xGOthanks,Vic Y
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Jul 23, 2005
I have several stored procedures with parameters that are defined withuser defined data types. The time it takes to run the procedures cantake 10 - 50 seconds depending on the procedure.If I change the parameter data types to the actual data type such asvarchar(10), etc., the stored procedure takes less that a second toreturn records. The user defined types are mostly varchar, but someothers such as int. They are all input type parameters.Any ideas on why the stored procedure would run much faster if notusing user defined types?Using SQL Server 2000.Thanks,DW
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Oct 25, 2005
Hi All:I've read a whole slew of posts about creating temp tables using storedproceedures to get the crosstab ability, but I'm wondering if, for thisspecific case, there might be a more efficient way.What makes this question different from the others that I've read isthat I'm using user defined functions, not tables. I actually thinkthat I've got the crosstab thing down, it's just passing the parameterto the 2nd udf that's messing me up.I've got a people table and an address table. Each person can havemultiple addresses. I need to create a dataset that has in each rowthe name of the person, the first address, any second address, and anythird address. I only need to show the first 3, so if there's 100, Ican just ignore the rest.I created a user defined function to return the 1st, 2nd, or 3rdaddress for a given person.udf_ReturnAddress(PersonID,MatchNumber)Another user defined function returns the people that I'm looking for(potential duplicates for a person in this case).udf_ReturnPossibleDupsForAPerson(PersonID)SELECTMain.FoundPersonID, Main.LastName, A1.Street, A2.Street,A3.StreetFROMudf(ReturnPossibleDupsForAPerson(@PersonID) MainTableCROSS JOIN(SELECT Street1 FROMudf_ReturnAddress(Main.FoundPersonID,1) Adr1) A1CROSS JOIN(SELECT Street1 FROMudf_ReturnAddress(Main.FoundPersonID,2) Adr2) A2CROSS JOIN(SELECT Street1 FROMudf_ReturnAddress(Main.FoundPersonID,3) Add3) A3If, for the first parameter for the return address function, I replaceMain.FoundPersonID with the ID of a person, it works just fine. Iobviously don't want a static id as a parameter - I want to use the IDof the person that the first udf found. Leaving the variableMainTable.PersonID there causes an error in the query designer though.I get "Error in list of function arguments: '.' not recognized.So maybe my problem is that I just don't know how to pass the id of theperson that's found by the first UDF as the parameter of the functionto find the found person's 3 addresses.Any guidance would be greatly appreciated!ThanksKen
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Apr 2, 2008
hai,
how can i identify the function is user defined or the system defined function....................
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Jan 26, 2000
Our server has integrated security setup, upon startup of the server,
we have a continuous flow of error msg:
Login Failed: Reason: User '_' not defined as a valid user of trusted
connection.
The timing of these messages only around 30 seconds apart
The only incident from Technet I can find is Q186314, but we don't have replication setup, anyone knows where I can look into ?
I recycle the server but didn't help.
I appreciate any help I can get ..
Thanks.
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Apr 5, 1999
Hi,
i'm a newbie in SQL. I can't connect to SQL 6.5 server using ASP ADO. Below is the program code
<%
set conn=server.createobject("adodb.connection")
conn.open "dsn=Central;uid=sa;pwd="
%>
An error message appears
Login failed- User: Reason: Not defined as a valid user of a trusted SQL Server connection.
I've already created a ODBC System DSN named Central
parameter Server Local and used Trusted connection checked.
Then under sql Manager there is a sa with a blank password.
Please help.
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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 22, 2007
I've a view in which one of the fields were DATEDIFF(day,contract date,received) AS AgeOfAccount. I changed it to DATEDIFF(day, m.received, CASE WHEN m.clidlp > m.clidlc THEN m.clidlp ELSE m.clidlc END) * - 1 AS AgeOfAccount. When I execute the view I'm getting an error. But the results are getting displayed properly. That's what's puzzling me. Could someone tell me what the error is.
The following errors were encountered while parsing the contents of the sql pane.
Your entry cannot be converted to a valid date time value.
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Sep 3, 2004
Hi,
I have a search returning many 'car' records (regno, mileage, color, etc)
In a seperate table I have two columns: accessory and regno. This can have many rows for each regnumber.
Within the storedprocedure that returns the 'car' records I need to also return the relevant accessories for that car as one column.
I have written a function as such (with some help!):
ALTER Function getAccs(@regNo varChar(20))
RETURNS varChar
AS
BEGIN
Declare @List varchar(1000)
SELECT @List = COALESCE(@List + ', ', '') + accessory
FROM frxrep2.dbo.usedaccessories WHERE regnumber = @regno
return @List
END
I was hoping that I could simply use this in the 'car' SELECT statement.
ie:
SELECT regNo, color, mileage, dob.getAccs(regno) as AccessoryList
FROM tableBla etc
I'm not even sure if the function works - How can I test in SQL analyzer?
any help much appreciated,
Pete
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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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Oct 11, 2000
Hi,
I know that we cannot have User Defined Functions in SQL 7.0, but is there a work around. I am trying to standardize the date according to the time zone using a function and use it as part of a select statement.
I cannot believe that is not possible in SQL 7.0, can somebody tell me what is the work around, I am running against time. I really appreciate any help on this one.
Satish.
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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
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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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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Dec 16, 1999
all schedulled task on server failed for 18450 Process Exit Code 1. ...t Utility, Version 6.50.240 Copyright (C) Microsoft Corporation, 1995 - 1996 [Microsoft SQL-DMO] Error 18450: [SQL Server] Login failed- User: sqlexec Reason: Not defined as a valid user of a trusted SQL Server connection.
Any information on how to solve it
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Jan 5, 1999
Is it possible to change the owner of a User Defined Dataype? I've
recently had to change the owner of one of my databases and the
tables from a specific user to 'dbo'. The UDD's are the only objects
I am unable to change the ownership of.
Any suggestions anyone?
Thanks for any advice!
Toni Eibner
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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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Aug 18, 2006
Hi everyone
I am implementing an encrypted data system whereby captured data is encrypted using MS CAPICOM when written to DB and decrypted when displayed. It works well. However, each time you write the data back on update the encryption is different from the previous time.
I have a search screen that allows users to enter text data and submit it looking for matches. Of course, the user is entering unencrypted text and the DB data is encrypted.
This means that you can't encrypt the input data before you try to match because the encryption alogorithm used on the input data will not match that which was used to encrypt the DB data.
Are you with me so far?
So, you have to compare the uncencrypted input data with DECRYPTED DB data - in other words, decrypt the DB data on the fly within the where clause of your query.
I have accomplished this by writing a UDF that instantiates an instance of the CAPICOM encryption module and calling the UDF when applying the query
eg where udf(columnname1) = 'inputtext' or udf(columnname1) = 'inputtext'.
It works, I get the results that I want.
But, alas, the performance has taken a search severe hit.
Has anyone else ventured down this road?
Is there a better way of doing this?
Thanks
Ray
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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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Jan 16, 2008
I've been doing some reading on UDT's and have a question...
It was suggested in one of the pieces I read that you could create a UDT for, in their example, cities. And every table that had a reference to city could share this datatype. Now, my initial thought was "wow, what a great idea! I wouldn't have to remember the exact datatype for my primary keys (was it a char(5) or char(6)?) and have a "central depository" for my key datatypes.
So the first question is; what are the disadvantages of such a design?
And the second is; How do you update a UDT? If business requirements change and udt_city needs to be changed from varchar(30) to varchar(60), for example, what would be the way of echoing the change thoughout your database?
My gut reaction for the answers are
1) performance will decrease as effectively the dbms has to "parse" every insert/update to a UDT field in a different method.
2) create a new udt and alter any tables referencing the old one before dropping it.
What do we think?
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Mar 18, 2008
Hello
Is there a way that I can create a user defined variable in my database? I have a fairly large chunk of xml that I would like to store in the database that can be updated by clients ( in rare cases ). I could use other mechinisms to allow access to it, but all other application related information is stored nicely in this one place, I hate to vary for this single piece.
Thank you for your time and thoughts.
Patrick
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Jan 27, 2004
hi all,
I made myself a user defined function, it works great, but is there a way to make it available to all databases?
cheers,
alex
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Feb 19, 2004
When I define a UDF in SQL 2000 I can't execute it without qualifiction. Here's the code:
CREATE FUNCTION GetLastShipDate(@DO_No CHAR(10))
RETURNS CHAR(10)
-- DROP FUNCTION GetLastShipDate
BEGIN
DECLARE @v_last_ship_date CHAR(10)
SELECT @v_last_ship_date = COALESCE(CONVERT(CHAR(10), MAX(Asn.Asn_Ship_DateTime), 110), '')
FROM Asn,Asn_Do
WHERE Asn_Do.Asn_Number=Asn.Asn_Number
AND Asn_Do.DO_Number = @DO_No
AND Asn.ASN_STATUS in ('SENT','RESENT')
RETURN @v_last_ship_date
END
So I have to execute this with:
SELECT dbo.GetLastShipDate('T010215004')
I want to execute it with
SELECT GetLastShipDate('T010215004')
What am I doing wrong?
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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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Sep 8, 2005
Iam trying to create a geo-database.
For that i need to have a spatial data type called polygon which takes in values as int. so it can be declared as:
POLYGON(0 0, 100 0, 100 100, 0 100, 0 0)
How do i do that.
plz help.
---
Iam not real any more
Iam just an Illusion
---
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Apr 15, 2007
Hi,
Iam new to sql server. I want to create a user defined function to get date in a year(starting day of a week-i.e sunday date) when we give week number as argument. can any body help on this issue?
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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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Jul 23, 2005
Is there a way to call a SQL user-defined function in a DTS, perhapsin an ActiveX transformation? I want the destination table to have avalue that was modified by a pre-defined function.-Noelle
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Jul 6, 2006
Hi everyone,
Today while using user defined functions, I noticed that we must write dbo. before the function name which I did not conceive why it is used like that. Why are there an exception for functions ?
Why do we not have to use the same thing while using SP or not user defined functions ?
Thanks
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Nov 15, 2006
declare @statusID varchar(100)
set @statusID = '1, 2'
--this works
select id from SplitWords(@statusID, ',')
--this doesn't
declare @sql nvarchar(2000)
set @sql = 'select * from Mast where ' + 'phmStatusID in ( select id from ' + 'SplitWords(@statusID, '', '')' + ') '
exec sp_executesql @sql
is what I'm trying to do not allowed? if so, whats the right way to do this?
any help appriciated. thanks.
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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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