I Need The Function To Return A Srting
Jul 21, 2004
Hii every one
When i use the function of (select) from the data bass it return dataset or some thing else
But I need it to return string or the data element which in the query not all the query
like
I dont need that
_____________
| Id | Name |
-----------------
| 1 | Bill |
--------------------
I dont need All of that to display But I need to display the name only in Label or textbox
like
Bill
Thanks
Maro
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Aug 28, 2007
I'm a Reporting Services New-Be.
I'm trying to create a report that's based on a SQL-2005 Stored Procedure.
I added the Report Designer, a Report dataset ( based on a shared datasource).
When I try to build the project in BIDS, I get an error. The error occurs three times, once for each parameter on the stored procedure.
I'll only reproduce one instance of the error for the sake of brevity.
[rsCompilerErrorInExpression] The Value expression for the query parameter 'UserID' contains an error : [BC30654] 'Return' statement in a Function, Get, or Operator must return a value.
I've searched on this error and it looks like it's a Visual Basic error :
http://msdn2.microsoft.com/en-us/library/8x403818(VS.80).aspx
My guess is that BIDS is creating some VB code behind the scenes for the report.
I can't find any other information that seems to fit this error.
The other reports in the BIDS project built successfully before I added this report, so it must be something specific to the report.
BTW, the Stored Procedure this report is based on a global temp table. The other reports do not use temp tables.
Can anyone help ?
Thanks,
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Oct 6, 2005
Im a self proclaimed newb and Im stuck on returning a value from a function. I want to get the AttendID that the SQL statement returns and dump it into strAttendID: Response.Redirect("ClassSurvey.aspx?Pupil=" & strAttendID)I cant seem to accomplish this. It returns nothing. Please help.TIA,Stue<code>Function Get_AttendID(ByVal strAttendID As String) As SqlDataReaderDim connString As String = ConfigurationSettings.AppSettings("ClassDB")Dim sqlConn As New SqlConnection(connString)Dim sqlCmd As SqlCommandDim dr As SqlDataReader
sqlConn.Open()Dim strSQL As String = "Select AttendID from attendees Where FirstName=@FirstName and LastName=@LastName and classbegdt = @classbegdt and survey = '0'"
sqlCmd = New SqlCommand(strSQL, sqlConn)
sqlCmd.Parameters.Add("@FirstName", SqlDbType.VarChar, 50)sqlCmd.Parameters("@FirstName").Value = tbFirstName.TextsqlCmd.Parameters.Add("@LastName", SqlDbType.VarChar, 50)sqlCmd.Parameters("@LastName").Value = tbLastName.TextsqlCmd.Parameters.Add("@classbegdt", SqlDbType.DateTime, 8)sqlCmd.Parameters("@classbegdt").Value = calBegDate.SelectedDate.ToShortDateStringdr = sqlCmd.ExecuteReader()dr.Close()sqlConn.Close()
Return dr
End Function</code>
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Jun 13, 2004
I want to write a function that returns the physical filepath of the master database for its MDF and LDF files respectively. This information will then be used to create a new database in the same location as the master database for those servers that do not have the MDF and LDF files in the default locations.
Below I have the T-SQL for the function created and a test query I am using to test the results. If I print out the value of @MDF_FILE_PATH within the funtion, I get the result needed. When making a call to the function and printing out the variable, all I get is the first letter of the drive and nothing else.
You may notice that in the function how CHARINDEX is being used. I am not sure why, but if I put a backslash "" as expression1 within the SELECT statement, I do not get the value of the drive. In other words I get "MSSQLData" instead of "D:MSSQLData" I then supply the backslash in the SET statement. I assume that this has something to do with my question.
Any suggestions? Thank you.
HERE IS T-SQL FOR THE FUNCTION
IF OBJECT_ID('fn_sqlmgr_get_mdf_filepath') IS NOT NULL
BEGIN
DROP FUNCTION fn_sqlmgr_get_mdf_filepath
END
GO
CREATE FUNCTION fn_sqlmgr_get_mdf_filepath (
@MDF_FILE_PATH NVARCHAR(1000)--Variable to hold the path of the MDF File of a database.
)
RETURNS NVARCHAR
AS
BEGIN
--Extract the file path for the database MDF physical file.
SELECT @MDF_FILE_PATH = SUBSTRING(mdf.filename, CHARINDEX('', filename)+1, LEN(filename))
FROM master..sysfiles mdf
WHERE mdf.groupid = 1
SET @MDF_FILE_PATH = SUBSTRING(@MDF_FILE_PATH, 1, LEN(@MDF_FILE_PATH) - CHARINDEX('', REVERSE(@MDF_FILE_PATH)))
RETURN @MDF_FILE_PATH
END
HERE IS THE TEST I AM USING AGAINST THE FUNCTION
SET NOCOUNT ON
DECLARE
@MDF_FILE_PATH NVARCHAR(1000)--Variable to hold the path of the MDF File of a database.
SELECT @MDF_FILE_PATH = dbo.fn_sqlmgr_get_mdf_filepath ( @MDF_FILE_PATH )
PRINT @MDF_FILE_PATH
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May 14, 2004
What I'm trying to do is provide a solution where users can upload an image and a description, to a database, so I'm trying to insert the title and description then return the @@identity for the image upload function which will name the image like this
image_23.jpg (23 being the @@identity) resize it and save it to specified directory
I cant seem to get the identity to return to my script.
This is my SP
CREATE PROCEDURE SP_Insertad
(
@catid int,
@subcatid int,
@areaid int,
@uid int,
@adtitle varchar(255),
@addescription varchar(1000)
)
AS
Insert Into Tbl_ad
(ad_title, ad_description,ad_area,ad_ui_id,ad_active,ad_date,ad_ct_id,ad_sc_id,ad_location)
VALUES
(@adtitle,@addescription,@areaid, @uid, 0,convert(varchar, GETUTCDATE(), 101), @catid, @subcatid, 1)
select @@identity
return
GO
I tested in query analyser, and it works fine, so It must be my code. this is my function
Sub Insert_pic(sender as object, e as eventargs)
Dim catid = Request.form("ddcats")
Dim subcatid = Request.form("subcatrad")
Dim adtitle = Request.Form("txttitle")
Dim AdDescription = Request.form("txtdescription")
Dim uid = getUID(Context.User.Identity.Name)
Dim areaid = Request.form("ddarea")
SQLConnect = new SqlConnection(ConfigurationSettings.Appsettings("mydB"))
SQLCommander = New SQLCommand("SP_INSERTad", SQLConnect)
SQLCommander.Commandtype = Commandtype.StoredProcedure
SQLCommander.Parameters.add("@adtitle", adtitle)
SQLCommander.Parameters.add("@addescription", addescription)
SQLCommander.Parameters.add("@catid", catid)
SQLCommander.Parameters.add("@subcatid", subcatid)
SQLCommander.Parameters.add("@uid", uid)
SQLCommander.Parameters.add("@areaid", areaid)
'// this section not working right, it wont write return id
Dim paramreturn as SQLParameter
paramreturn = SQLCommander.Parameters.Add("ReturnValue", SQLDBType.Int)
ParamReturn.Direction = ParameterDirection.ReturnValue
response.write(SQLCommander.Parameters("ReturnValue").Value)
SQLConnect.open()
SQLCommander.ExecuteNonQuery()
SQLConnect.close()
End sub
Can anybody see anything I missing? I appreciate any imput
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May 10, 2005
Hi,
I basically do not want to return a null value as a result of using a sum function (using sum against 0 rows).
Is there a common way to avoid this?
Thanx
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Feb 14, 2008
Dear all,
can i write a table return function like this?
create function my_function(
returns @MYTABLE table(NAME VARCHAR(20),SES VARCHAR(20),CNT DECIMAL(10),MYDATE DATATIME)
insert into @mytable
select col1,col2,col3,col4 from tab1
go
select col1,col2,col3,col4 from tab2
go
select col1,col2,col3,col4 from tab3
go
select col1,col2,col3,col4 from tab4
go
return
end
am i doing correct?
what i'm expecting from this function is, i need all the data from select statements should be inserted into one table.
please guide me in this regard
Vinod
Even you learn 1%, Learn it with 100% confidence.
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Mar 9, 2008
//this is the function
double sem_3 ( double gpa_sem_1, double gpa_sem_2 )
{
int back_3;
char grade [2];
double score = 0;
double gpa_sem_3;
double cgpa_sem_3;
double problem_solving_and_programming;
double fundamentals_of_finance;
printf("FCCS1013 Problem Solving and Programming : ");
scanf("%s",&grade );
score = grade_selection( grade );
problem_solving_and_programming = score * 3;
printf("FBFF1013 Fundamentals of Finance : ");
scanf("%s",&grade );
score = grade_selection( grade );
fundamentals_of_finance = score * 3;
gpa_sem_3 = ( ( problem_solving_and_programming + fundamentals_of_finance ) / 6 );
cgpa_sem_3 = ( ( gpa_sem_1 + gpa_sem_2 + gpa_sem_3 ) / 3 );
printf("GPA = %.4f", gpa_sem_3);
printf("CGPA = %.4f", cgpa_sem_3);
printf("press 0 to go back to option menu: ");
scanf("%d", &back_3);
if( back_3 == 0 )
{
system("cls");
main();
}
else
{
printf("invalid option ");
}
return gpa_sem_3;
}
--------------------------------------------------------------------------------------------------------------------------------------------
//this is the main program(part of it only)
case 1:
system ( "cls" );
gpa_sem_1 = sem_1( );
break;
--------------------------------------------------------------------------------------------------------------------------------------------------
// why doesn't the error promp when the user enters an invalid entry? in the codes below.
double grade_selection ( char grade[] )
{
double score = 0;
if (strcmp( grade, "A+" ) ==0 || strcmp( grade, "a+" ) == 0)
{
score += 4.00;
}
else if (strcmp( grade, "A-" ) == 0 || strcmp( grade, "a-" ) == 0 )
{
score += 3.70;
}
else if (strcmp( grade, "B+" ) == 0 || strcmp( grade, "b+" ) == 0 )
{
score += 3.30;
}
else if (strcmp( grade, "B" ) == 0 || strcmp( grade, "b" ) == 0 )
{
score += 3.00;
}
else if (strcmp( grade, "B-" ) || strcmp( grade, "b-" ) == 0)
{
score += 2.70;
}
else if (strcmp( grade, "C+" ) || strcmp( grade, "c+" ) == 0 )
{
score += 2.30;
}
else if (strcmp( grade, "C" ) || strcmp( grade, "c" ) == 0 )
{
score += 2.00;
}
else if (strcmp( grade, "D" ) || strcmp( grade, "d" ) == 0 )
{
score += 1.00;
}
else if (strcmp( grade, "F" ) || strcmp( grade, "f" ) == 0 )
{
score += 0.00;
}
else
{
printf( "invalid grade" );
printf( "please enter again: " );
getchar( grade[2] );
}
return score;
}
-------------------------------------------------------------------------------------------------------------
thanks.
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May 23, 2006
Hi,
I am trying to return [string/SqlString] from a CLR function, but it was truncated at 8000 characters.
How can I solve this problem and return varchar(MAX)?
Thanks
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May 17, 2008
Hi guys!
the problem is this:
I have a procedure that execute a function and i want to catch the return function value but i'm getting a null value.
I'm using:
exec @a = <function>
but the @a variable is allways null...
If i exec the function directly, i get the correct value.
What am i doing wrong?
Thanks in advance.
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Apr 7, 2008
I have a function that is using a select case decision structure to arrive at a return value:
[dbo].[fn_Window]
(@Start AS INT,
@End AS INT) RETURNS VARCHAR(5)
AS
BEGIN
SELECT
CASE
/*** Pick up the extended periods here ***/
WHEN @Start = 1 AND @End = 1 THEN 'TRUE'
ELSE 'FALSE'
END
END
**** from here how do I get the function to return true or false? ****
Can I assign the select case result to a variable? If so how?
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Jul 30, 2007
Hi,I have a sql 2005 function who return a distance from 2 zipcodes. This function is called from a Stored procedure like this :SELECT *, dbo.fn_GetDistance (...) AS DistanceIn this function, i have a Latitude and i want this Latitude to be also returned.It is possible or a function can return only one variable?If it is possible, what's the syntax of it?Thanks in advance
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Jun 6, 2005
Cannot see where I am going wrong. I always get a value of 0. I know my function works correctly, so it must be the VB.
CREATE FUNCTION [dbo].[getNextProjectID] ()
RETURNS varchar(10) AS
BEGIN
'''''''''''''''''''...........................
DECLARE @vNextProjectID varchar(10)
RETURN @vNextProjectID
END
Sub LoadNextProjectNumber()
Dim vProjectID As String
Dim cmd As New SqlClient.SqlCommand()
cmd.Connection = sqlConn
cmd.CommandText = "getNextProjectID"
cmd.Parameters.Add("@vNextProjectID", vProjectID)
cmd.Parameters("@vNextProjectID").Direction = ParameterDirection.ReturnValue
cmd.ExecuteScalar()
vProjectID = cmd.Parameters("@vNextProjectID").Value
txtProjectID.Text = vProjectID
cmd.Dispose()
End Sub
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Jun 19, 2007
searched all over, couldn't find a solid answer...is it possible to return multiple values from a sql function with sql server 2005?
e.g., I want to do this:
select id, data, whatever, dbo.fnMyFunction(id, whatever) from table
and have the output have columns (id, data, whatever, col1, col2) where col1 and col2 are returned by fnMyFunction
possible? easier way? thanks in advance...
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Jun 2, 2008
Greetings,
Is there anything new on returning max of two values in SQL 05? There seems to be nothing I have searched everywhere. Only option might be to create my own UDF or do a CASE statement, but I could not believe my eyes there is no such thing?
Thanks
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Jun 16, 2008
Hi I need a function which gets 3 parameters and input and returns 4 integers as output.
I don't know how to return 4 integers as output
any idea is appreciated.
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Jan 19, 2014
I have an existing function and need to alter function to give result of the parent-description until its parent is reached.
--CREATE TABLE
CREATE TABLE [dbo].[CityData](
[Id] [int] NULL,
[ParentID] [int] NULL,
[City] [nchar](20) NULL,
[Location] [nchar](50) NULL,
[Amt] [int] NULL
) ON [PRIMARY]
[Code] ....
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Apr 10, 2007
Is it possible to write dynamic sql on scalar function and assign the value to return value? I like some thing like below but it is not working...
Thanks
______________________________________________________________________
set @sql = 'select @CallLegKey= min(calllegkey) as CallLegKey
from rt_'+@platform+'_CallLegs
where datediff(day,convert(datetime, CallEndTime) ,'''+cast(@today as varchar(20))+''') = '+cast(@cutoff as varchar(5))
exec @sql
return @CallLegKey
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May 15, 2007
I have created a function to return values, which works fine, but I can't do calculations in it.
CREATE FUNCTION [dbo].[tf_Asset_Portfolio](@deal_id int,
@as_of_date datetime)
RETURNS TABLE
AS
RETURN ( SELECT DISTINCT dbo.Assets.issue_id, SUM(DISTINCT dbo.Assets.par_amount) AS par_amount, SUM(DISTINCT dbo.Assets.par_amount) AS market_value
FROM dbo.Issue INNER JOIN
dbo.Assets ON dbo.Issue.issue_id = dbo.Assets.issue_id INNER JOIN
dbo.Issuer_Rating_History ON dbo.Issue.issuer_id = dbo.Issuer_Rating_History.issuer_id
WHERE (dbo.Issuer_Rating_History.as_of_date <= @as_of_date)
GROUP BY ALL dbo.Assets.issue_id, dbo.Assets.deal_id, dbo.Issue.default_date
HAVING (dbo.Assets.deal_id = @deal_id) )
I need to do calculations on market value based on the default date.
If default date isn't specified then it should be 100% of par amount.
If default date is less than one year ago - 65% of the par_amount.
If default date is one or more years ago - 0.
I have no idea about how to do this and everything I try wont work.
I created another function to do the calculations and this seems to work, but it only does one record instead of all of them.
CREATE FUNCTION dbo.tf_Asset_Portfolio2
(@deal_id int,
@as_of_date datetime)
RETURNS @Market TABLE
(issue_id int, par_amount money, market_value money)
AS
BEGIN
DECLARE @ReturnDate datetime
DECLARE @DD datetime
DECLARE @PA money
DECLARE @MV money
DECLARE @ID int
DECLARE @DateD int
SELECT TOP 1
@ReturnDate = LAST_BATCH
FROM master..sysprocesses
WHERE SPId = @@SPID
SELECT @ID = issue_id FROM Assets WHERE Assets.deal_id = @deal_id
SELECT @PA = SUM(DISTINCT par_amount) FROM Assets WHERE Assets.issue_id = @ID AND Assets.deal_id = @deal_id
SELECT @DD = default_date FROM Issue WHERE Issue.issue_id = @ID
SET @DateD = DateDiff("yyyy", @DD, @ReturnDate)
If @DD = Null
BEGIN
SET @MV = @PA
END
Else If @DD > @ReturnDate
BEGIN
SET @MV = @PA
END
Else If @DateD < 1
BEGIN
SET @MV = @PA * .65
END
Else If @DateD >= 1
BEGIN
SET @MV = 0
END
insert into @Market
(issue_id, par_amount, market_value)
values
(@ID,@PA,@MV)
RETURN
END
I need to combine the functionality of being able to return mutliple records that isn't in the 2nd function and being able to calculate the market value which isn't in the first one. Please help. Thank you in advance.
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Nov 14, 2007
hi can anyone please help me
i have a stored procedure ,can i put the value of this into a variable......????
I have one more query ---how can i pass the multiple values returned by this stored procedure into a single variable ...
example if my stored procedure is
[dbo].[GetPortfolioName](@NT_Account varchar(100) )
and ans of this are
NL
UK
IN
GN
JK
then how can i put this into a variable like
Declare @PortfolioName as varchar(250)
set @PortfolioName =(exec ].[GetPortfolioName](@NT_Account) )
.......
and my ans is
@PortfolioName = 'NL','UK','IN','GN','JK'
now can i make a function which returns 'NL','UK','IN','GN','JK'
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Jan 3, 2008
I have created the following user function :-
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO
ALTER function [dbo].[GetBillPrice](@BillLineID int)
returns float
as
begin
DECLARE @BillPrice float
SET @BillPrice = (
SELECT ((CAST(T_BillValueAndTax.BillValueAndTaxBillValue as float))+(CAST(T_BillTax.BillTaxTax1Value as float)) +(CAST(T_BillTax.BillTaxTax2Value as float)))
FROM T_BillLine
INNER JOIN T_BillValueAndTax on T_BillValueAndTax.BillValueAndTaxID = T_BillLine.BillValueAndTaxID_Price
INNER JOIN T_BillTax on T_BillTax.BillTaxID = T_BillValueAndTax.BillTaxID_Bill
WHERE T_BillLine.BillLineID = @BillLineID)
return ABS(@BillPrice)
end
No matter how I try to return the @BillPrice value, the value is rounded to the nearest whole number. For instance if the value is calculated as 198.75 the value returned is 199.0
When I execute the function in Query Anlayser the correct value of 198.75 is returned.
Any help in solving this would be greatly appreciated.
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Dec 21, 2007
I have a function that I need to call from an execute sql task. I want to bind the return value from the function to an ssis variable.
Can someone please show me an example of what the function syntax needs to look like in order for this to work? I know that with sp's, you need to explicitly state the column names.
I have tried many things without success.
Thanks
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Sep 21, 2007
Hi,
I am trying to find a way to return the result of an EXEC(*sqlstring*) from a function. I can return the tsql but not the result of an execute.
This is my function:
ALTER FUNCTION [dbo].[ReturnPickItemValue]
(
-- Add the parameters for the function here
@TypeID int,
@CaseID int
)
RETURNS varchar(max)
AS
BEGIN
-- Declare the return variable here
DECLARE @RTN varchar(max)
IF(SELECT IncludeDates FROM TBL_LU_PICK WHERE PickTypeID = @TypeID) = 1
BEGIN
SET @RTN = 'SELECT PickItem I +
CASE D.IsStartDateEstimated
WHEN 0 THEN CAST(StartDate as varchar)
ELSE CAST(dbo.ReturnEstimatedDate(D.IsStartDateEstimated, 0) as varchar)
END +
CASE D.IsEndDateEstimated
WHEN 0 THEN CAST(EndDate as varchar)
ELSE CAST(dbo.ReturnEstimatedDate(D.IsEndDateEstimated, 1) as varchar)
END
FROM TBL_LU_PICK L
INNER JOIN TBL_Pick_Items I ON I.PickTypeID = L.PickTypeID
INNER JOIN TBL_PICK P ON P.PickItemID = I.PickItemID
LEFT JOIN TBL_PickDates D ON D.PickID = P.PickID
WHERE L.PickTypeID = ' + CAST(@TypeID as varchar) + '
AND P.CaseID = ' + CAST(@CaseID as varchar)
END
ELSE
BEGIN
SET @RTN=
'SELECT I.PickItem
FROM TBL_LU_PICK L
INNER JOIN TBL_Pick_Items I ON I.PickTypeID = L.PickTypeID
INNER JOIN TBL_Pick P ON P.PickItemID = I.PickItemID
WHERE L.PickTypeID = ' + CAST(@TypeID as varchar) + '
AND CaseID = ' + CAST(@CaseID as varchar)
END
RETURN @RTN
END
Each time I try " RETURN EXEC(@RTN) " or something similar I get an error.
I have tried executing the tsql and assigning the result to a varchar and returning that varchar but i get an error.
Anyone with any ideas?
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Aug 18, 2007
Ok, my host is free and for some reason when my users submit there code inside the discreption "textarea" with this (don't) it crashes the form without sending it to the database?
But if it is sent like this (dont) its ok!
So i am working on replacing the invalid strings so it'll be ok if they forget not to do it. But i am stuck...
Function CleanInput(strIn As String) As String
' Replace invalid characters with empty strings.
Return Regex.Replace(strIn, "[^w.@-]", "")
End Function
Any help i will love you forever :P
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Jan 21, 2008
Hello all:
How can I return the result of a SELECT statement from a stored procedure (function)?
CREATE FUNCTION returnAllAuthors ()
RETURNS (what do i put here??)
BEGIN
// Is this right??
RETURN SELECT * FROM authors
END
Thanks!
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May 5, 2004
Hi,
We Have Been Trying To Convert Some Pf The Procs Into Functions Of Late,but There Is A Problem :-we Have Been Unable To Return More Than 1 Table Value From A Function.
Create Function F_clusters()
Returns @ki Table(names Nvarchar(200),total Int),
As
Begin
Insert @ki
Select Names,count(distinct Chremail) As From Customer
Where Chremail Is Not Null
Return
End
This Works Fine :-
And Gives The Reqd. Results.
But,
If I Am Using The Same Function To Return Two Tables Then It Doesn't Work,could You Pls Chk.
Create Function F_clusters()
Returns @ki Table(names Nvarchar(200),total Int),@k2 Table(names Nvarchar(200),total Int)
As
Begin
Declare @cnt Int
Set @cnt = 1
While @cnt <= 2
If @cnt =1
Begin
Insert @ki
Select Names,count(distinct Chremail) As From Customer
Where Chremail Is Not Null
Set @cnt = @cnt + 1
End
If @cnt =2
Begin
Insert @k2
Select @naamre,count(distinct(a.intcustomerid)) As Pura_ginti From Trcustomerpreference03july A Inner Join Cleancustomer B
On A.intcustomerid = B.intcustomerid
Where Chremail <> ' ' And Chremail Is Not Null
And Intpreferenceid In (6,7,2,3,12,10)
Set @cnt2 = @cnt2 + 1
End
End
Return
End
Can We Return Two Tables Or Is It Not Possible ?
Pls Chk Into This And Tell Me.
Thanks.
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Mar 18, 2008
hi to all,
i have written SQL-CLR function using C# which will perform some manupulation and will not not return any value(return type is void)
i am creating sql function using SQL script
CREATE FUNCTION dbo.Amex ()
RETURNS NULL
AS CALLER
WITH EXECUTE
AS
EXTERNAL
NAME [AMEX].[UserDefinedFunctions].[Function1];
GO
but i am getting error.
there is something wrong in my sql syntax..can anybody help me?
when creating funtion having signature
public static void Function1()
i am getting error.......................
Error 1 The method "Function1" in class "UserDefinedFunctions" marked as a user defined function must return a scalar value or ISqlReader. SqlServerProject1
can anybody help me?
thanks in advance
Chetan S. Raut
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Jul 11, 2007
Hi,
I have an assembly that contains the following function:
Public Class Lookup
<SqlFunction()> _
Public Shared Function MyTest() As Integer
Return System.Data.SqlTypes.SqlInt64.Null
End Function
End Class
Then in SSMS:
CREATE ASSEMBLY IRS_MyTest
FROM '\machine empmyAssembly.dll'
GO
CREATE FUNCTION dbo.MyTest() RETURNS INT
AS EXTERNAL NAME IRS_MyTest.[MyClass].MyTest
GO
when I run:
SELECT dbo.MyTest()
the following is returned:
Msg 6522, Level 16, State 2, Line 1
A .NET Framework error occurred during execution of user defined routine or aggregate 'MyTest':
System.Data.SqlTypes.SqlNullValueException: Data is Null. This method or property cannot be called on Null values.
System.Data.SqlTypes.SqlNullValueException:
at System.Data.SqlTypes.SqlInt64.get_Value()
at System.Data.SqlTypes.SqlInt64.op_Explicit(SqlInt64 x)
at Informed.DCLG.IRS.SQL.IncidentTransform.Lookup.MyTest()
Can anyone please advise on how to return back a null value. Currently, my only other option is to return nothing (actually returns 0) and then wrap this up to convert the value to null - not ideal.
Thanks,
Jan.
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Aug 9, 2007
Hello,
I have do a sql function for return a list of element from a query send in variable.
When I test the function on self I have no problem.
But when I use the function in a sql query I have problem.
example :
Code SnippetSELECT APPLI_SUPPLIER.N_SUPPLIER_ID, APPLI_SUPPLIER.V_SUPPLIER_LABEL,
dbo.APPLI_RETURN_LIST_ITEM('SELECT DISTINCT APPLI_CONSTRUCTION.V_PROCESS_CODE FROM APPLI_CONSTRUCTION INNER JOIN APPLI_SUPPLIER_SKILL ON APPLI_CONSTRUCTION.N_SUPPLIER_ID = APPLI_SUPPLIER_SKILL.N_SUPPLIER_ID WHERE (APPLI_CONSTRUCTION.V_PROCESS_CODE IS NOT NULL) AND (APPLI_SUPPLIER_SKILL.N_SKILL_ID IN (2,3,4,5,6))')
AS V_PROCESS_ITEMS
FROM APPLI_SUPPLIER INNER JOIN
APPLI_SUPPLIER_SKILL ON APPLI_SUPPLIER.N_SUPPLIER_ID = APPLI_SUPPLIER_SKILL.N_SUPPLIER_ID
WHERE (APPLI_SUPPLIER_SKILL.N_SKILL_ID IN (2, 3, 4, 5, 6))
This is the error :
Server: Msg 557, Level 16, State 2, Procedure APPLI_RETURN_LIST_ITEM, Line 24
Only functions and extended stored procedures can be executed from within a function.
When I do an exec of the function I have this problem :
Code Snippet
exec APPLI_RETURN_LIST_ITEM('SELECT DISTINCT APPLI_CONSTRUCTION.V_PROCESS_CODE FROM APPLI_CONSTRUCTION INNER JOIN APPLI_SUPPLIER_SKILL ON APPLI_CONSTRUCTION.N_SUPPLIER_ID = APPLI_SUPPLIER_SKILL.N_SUPPLIER_ID WHERE (APPLI_CONSTRUCTION.V_PROCESS_CODE IS NOT NULL) AND (APPLI_SUPPLIER_SKILL.N_SKILL_ID IN (2,3,4,5,6))')
Server: Msg 170, Level 15, State 1, Line 1
Line 1: Incorrect syntax near 'SELECT DISTINCT APPLI_CONSTRUCTION.V_PROCESS_CODE FROM APPLI_CONSTRUCTION INNER JOIN APPLI_SUPPLIER_SKILL ON APPLI_CONSTRUCTION.N_SUPPLIER_ID = APPLI_SUPPLIER_SKILL.N_SUPPLIER_ID WHERE (APPLI_CONSTRUCTION.V_PROCESS_CODE IS NOT NULL) AND (APPLI_SUPPLIER_SKILL.N_SKILL_ID IN (2,3,4,5,6))'
This is the function
Code Snippet
CREATE FUNCTION [dbo].[APPLI_RETURN_LIST_ITEM]
(@QUERY AS VARCHAR(3900)=null)
RETURNS varchar(8000)
AS
BEGIN
-- Insert statements for procedure here
declare @v_List_ITEM as varchar(8000)
set @v_List_ITEM=''
if @QUERY is not null
Begin
declare @cur_Lect_ITEM CURSOR;
declare @FUNCTION AS NVARCHAR(4000);
Declare @ITEM as VARCHAR(255);
SET @FUNCTION = 'set @mainCursor=cursor for ' + @QUERY + ' for read only open @mainCursor'
EXEC sp_executesql @FUNCTION,N'@mainCursor cursor output', @cur_Lect_ITEM output
fetch next from @cur_Lect_ITEM into @ITEM
while @@fetch_status=0
begin
set @v_List_ITEM=@ITEM + ' ; ' + @v_List_ITEM
fetch next from @cur_Lect_ITEM into @ITEM
end
deallocate @cur_Lect_ITEM
SET @v_List_ITEM=REPLACE(REPLACE(@v_List_ITEM, CHAR(13), ''), CHAR(10), '')
set @v_List_ITEM=left(@v_List_ITEM,len(@v_List_ITEM)-3)
End
RETURN @v_List_ITEM
END
Can you help me please?
Thank you
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