SQL Function Returning Varchar(max)

Mar 1, 2007

I have a SQL function which returns a varchar(max). This gets truncated when the length is greater than 8000. Could you let me know how do I get the return value in a function without it being truncated.

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Function Returning A Table

Nov 16, 2005

set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
go


create FUNCTION [dbo].[search](@art varchar,@cd varchar,@tra varchar,@gen varchar,@cdate datetime,@label varchar)

RETURNS @result TABLE(Artist varchar(100),CDTitle varchar(100),Track varchar(100),CDtype
varchar(100),CDDate datetime, Label varchar(100))
AS

BEGIN

IF @art <>'/'
INSERT INTO @result SELECT dbo.CD.CDCoverURL AS ' ', dbo.CD.CDTitle AS 'CD Title',cd.cdtype as
'Section', convert(varchar,cd.cddate,106) as 'Release Date', dbo.Label.Label,
dbo.Shelf.Shelf
FROM artist,cd,label,shelf,cdtrack,artisttrack,track
WHERE artist.artistid=artisttrack.artistid and cd.cdid=cdtrack.cdid and
track.trackid=cdtrack.trackid and label.labelid=cd.labelid and
shelf.shelfid=cd.shelfid and artisttrack.trackid=track.trackid
and artist.artist=@art
Group by dbo.CD.CDCoverURL, dbo.CD.CDTitle, dbo.CD.CDType, dbo.CD.CDDate,
dbo.Label.Label, dbo.Shelf.Shelf

if @cd <>'/'
insert into @result SELECT dbo.CD.CDCoverURL AS ' ', dbo.CD.CDTitle AS 'CD Title',cd.cdtype as 'Section', convert(varchar,cd.cddate,106) as 'Release Date', dbo.Label.Label, dbo.Shelf.Shelf
FROM artist,cd,label,shelf,cdtrack,artisttrack,track
where artist.artistid=artisttrack.artistid
and cd.cdid=cdtrack.cdid and track.trackid=cdtrack.trackid and label.labelid=cd.labelid
and shelf.shelfid=cd.shelfid and artisttrack.trackid=track.trackid and cd.cdtitle=@cd
Group by dbo.CD.CDCoverURL, dbo.CD.CDTitle, dbo.CD.CDType, dbo.CD.CDDate, dbo.Label.Label, dbo.Shelf.Shelf

if @tra <> '/'
insert into @result SELECT dbo.CD.CDCoverURL AS ' ', dbo.CD.CDTitle AS 'CD Title',cd.cdtype as 'Section', convert(varchar,cd.cddate,106) as 'Release Date', dbo.Label.Label, dbo.Shelf.Shelf
FROM artist,cd,label,shelf,cdtrack,artisttrack,track
where artist.artistid=artisttrack.artistid
and cd.cdid=cdtrack.cdid and track.trackid=cdtrack.trackid and label.labelid=cd.labelid
and shelf.shelfid=cd.shelfid and artisttrack.trackid=track.trackid and track.track=@tra
Group by dbo.CD.CDCoverURL, dbo.CD.CDTitle, dbo.CD.CDType, dbo.CD.CDDate, dbo.Label.Label, dbo.Shelf.Shelf

if @gen <>'/'
insert into @result SELECT dbo.CD.CDCoverURL AS ' ', dbo.CD.CDTitle AS 'CD Title',cd.cdtype as 'Section', convert(varchar,cd.cddate,106) as 'Release Date', dbo.Label.Label, dbo.Shelf.Shelf
FROM artist,cd,label,shelf,cdtrack,artisttrack,track
where artist.artistid=artisttrack.artistid
and cd.cdid=cdtrack.cdid and track.trackid=cdtrack.trackid and label.labelid=cd.labelid
and shelf.shelfid=cd.shelfid and artisttrack.trackid=track.trackid and cd.cdtype=@gen
Group by dbo.CD.CDCoverURL, dbo.CD.CDTitle, dbo.CD.CDType, dbo.CD.CDDate, dbo.Label.Label, dbo.Shelf.Shelf

if @cdate<>'01/01/1900'
insert into @result SELECT dbo.CD.CDCoverURL, dbo.CD.CDTitle, dbo.CD.CDType, dbo.CD.CDDate, dbo.Label.Label, dbo.Shelf.Shelf
FROM artist,cd,label,shelf,cdtrack,artisttrack,track
where artist.artistid=artisttrack.artistid
and cd.cdid=cdtrack.cdid and track.trackid=cdtrack.trackid and label.labelid=cd.labelid
and shelf.shelfid=cd.shelfid and artisttrack.trackid=track.trackid and cd.cddate=@cdate
Group by dbo.CD.CDCoverURL, dbo.CD.CDTitle, dbo.CD.CDType, dbo.CD.CDDate, dbo.Label.Label, dbo.Shelf.Shelf

if @label<>'/'
insert into @result SELECT dbo.CD.CDCoverURL, dbo.CD.CDTitle, dbo.CD.CDType, dbo.CD.CDDate, dbo.Label.Label, dbo.Shelf.Shelf
FROM artist,cd,label,shelf,cdtrack,artisttrack,track
where artist.artistid=artisttrack.artistid
and cd.cdid=cdtrack.cdid and track.trackid=cdtrack.trackid and label.labelid=cd.labelid
and shelf.shelfid=cd.shelfid and artisttrack.trackid=track.trackid and label.label=@label
Group by dbo.CD.CDCoverURL, dbo.CD.CDTitle, dbo.CD.CDType, dbo.CD.CDDate, dbo.Label.Label, dbo.Shelf.Shelf
return
end
---------------------------------------------------------------------
upon running executing this function with valid values i am not getting any results.
anything is wrong?
thank you,

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CLR SP Or Function Returning A Table

May 7, 2008

Hi guys,

I have to work with some configuration data that is stored in rows as a comma separated values. Something like this:



Key1
A,1,Z,0;B,2,Y,9;C,,8,X;

Key2
Alpha,101;Beta,102;



Each group of data is separated by a semicolon and each value by a comma. The quantity of values may vary from one key to the other. Over this values sometimes I need to run some selects, so I went with the idea to get it as a table using CLR.

There I find the first problem: I didn't find a way to return a "variable" column with a CLR function, I had to create a SP. Ok, now I execute spGetConfigurationAsTable 'Key1' and I can obtain something like this:



A
1
Z
0

B
2
Y
9

C
3
X
8


But I'm faced with a second problem: How can I run a query over this? I didn't find a way to run a query over an output of a SP. And I can't INSERT the result into a temporary table because I cannot CREATE the table static (remember the columns may differ from one configuration to the other).

So, it seemed a pretty simple task and a neat solution, but I'm kinda stuck. Is there a way to run a query over the SP output? Or is there a way to have a variable table output from a CLR UDF?

Here is the code of the CLR SP I use to obtain the data, and also the (non-working) CLR user defined function.


THANKS!




Code Snippet
public partial class StoredProcedures
{
[Microsoft.SqlServer.Server.SqlProcedure]
public static void spGetConfigurationAsTable(string Key)
{
SqlConnection conn = new SqlConnection("Context Connection=true");
string SqlCmd = string.Format("SELECT Value FROM Configuracion WHERE [Key] = '{0}' ", Key);
SqlCommand cmd = new SqlCommand(SqlCmd, conn);
conn.Open();
string Value = Convert.ToString(cmd.ExecuteScalar());
if (Value.Length > 0)
{
char SeparatorRow = ';';
char SeparatorColumn = ',';
if (Value.Split(SeparatorRow)[0].Split(SeparatorColumn).Length > 35)
return;
StringBuilder SqlCreate = new StringBuilder("DECLARE @Output TABLE (");
for (int i = 0; i < Value.Split(SeparatorRow)[0].Split(SeparatorColumn).Length; i++)
{
SqlCreate.AppendFormat("[{0}] varchar(50),", Convert.ToChar(65 + i));
}
SqlCreate.Remove(SqlCreate.Length - 1, 1);
SqlCreate.AppendLine(");");
StringBuilder SqlInsert = new StringBuilder();
foreach (string row in Value.Split(SeparatorRow))
{
if (row.Length > 0)
{
SqlInsert.Append("INSERT INTO @Output VALUES (");
// busca las diferentes "columns" ~ Charly
foreach (string column in row.Split(SeparatorColumn))
{
SqlInsert.AppendFormat("'{0}',", column);
}
SqlInsert.Remove(SqlInsert.Length - 1, 1);
SqlInsert.AppendLine(");");
}
}
string SqlSelect = "SELECT * FROM @Output;";
cmd.CommandText = SqlCreate.ToString() + SqlInsert.ToString() + SqlSelect;
SqlDataReader reader = cmd.ExecuteReader();
SqlContext.Pipe.Send(reader);
reader.Close();
reader.Dispose();
}
conn.Close();
conn.Dispose();
cmd.Dispose();
}
};







Code Snippet
public partial class UserDefinedFunctions
{
[Microsoft.SqlServer.Server.SqlFunction]
public static IEnumerable fGetConfigurationAsTable(string Key)
{
SqlConnection conn = new SqlConnection("Context Connection=true");
string SqlCmd = string.Format("SELECT Value FROM Configuracion WHERE [Key] = '{0}' ", Key);
SqlCommand cmd = new SqlCommand(SqlCmd, conn);
conn.Open();
string Value = Convert.ToString(cmd.ExecuteScalar());
conn.Close();
conn.Dispose();
cmd.Dispose();
DataTable dt = new DataTable();
if (Value.Length > 0)
{
char SeparatorRow = ';';
char SeparatorColumn = ',';
if (Value.Split(SeparatorRow)[0].Split(SeparatorColumn).Length > 35)
{
// throw exception
}
string ColumnName;
for (int i = 0; i < Value.Split(SeparatorRow)[0].Split(SeparatorColumn).Length; i++)
{
ColumnName = string.Format("[{0}] varchar(50),", Convert.ToChar(65 + i));
dt.Columns.Add(ColumnName, Type.GetType("System.String"));
}
foreach (string row in Value.Split(SeparatorRow))
{
if (row.Length > 0)
{
dt.Rows.Add(row.Split(SeparatorColumn));
}
}
}
return dt.Rows;
}
};

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Mar 7, 2007

I have this assignment where i have a table full of two digit exam scores and I have to write a function that eliminate x number of top values and x number of bottom values and return all the middle values. When the function is called, obviously a number is entered such as 3 and the top 3 and bottom 3 scores are not returned.
i.e. SELECT * FROM GetMiddleValues (3);

If anyone has any ideas on how to accomplish this, that would be great.

Thanks

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Mar 1, 2012

I have a table called tableA and i am fetching 10 rows from table.

select dept_id from tableA where branch = 'Chennai';

I got 10 records.

dept_id
-------
001
002
003
004
005
so n.....

Now i want to pass these dept_ids dynamically to a function parameter.

ie. exec function_name (@dept_id).

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Feb 12, 2004

Hi ,

I am creating a function which is going to return a table. The Code ofr the function is as follows...
===============================
Create function udf_qcard (@cg1 varchar(25)) returns @rec_card table (t_cusip varchar(10),t_data varchar(70))
AS
begin
declare @t1_sys char(10),@t1_all varchar(11)
declare @temp_qcard table (tdata varchar(11) collate SQL_Latin1_General_CP1_CS_AS)
if (substring(@cg1,1,2)='Q$')
set @cg1 = (select substring(@cg1,3,len(@cg1)) where substring(@cg1,1,2)='Q$')
DECLARE c1 SCROLL CURSOR FOR select groups_system, substring(groups_alldata,3,10) from tbl_groups
where groups_system = @cg1 and groups_alldata like 'Q$%' and groups_seq>=1 FOR READ ONLY
insert into @temp_qcard values(@cg1)
OPEN C1
FETCH NEXT FROM c1 INTO @t1_sys,@t1_all
WHILE @@FETCH_STATUS = 0
BEGIN

insert into @temp_qcard values(@t1_all)

declare @t2_sys char(10),@t2_all varchar(10)
DECLARE c2 SCROLL CURSOR FOR select groups_system, substring(groups_alldata,3,10) from tbl_groups
where groups_system = @t1_all and groups_alldata like 'Q$%' and groups_seq>=1 FOR READ ONLY

begin
OPEN C2
FETCH NEXT FROM c2 INTO @t2_sys,@t2_all
WHILE @@FETCH_STATUS = 0
BEGIN
insert into @temp_qcard values(@t2_all)

declare @t3_sys char(10),@t3_all varchar(10)
DECLARE c3 SCROLL CURSOR FOR select groups_system, substring(groups_alldata,3,10) from tbl_groups
where groups_system = @t2_all and groups_alldata like 'Q$%' and groups_seq>=1 FOR READ ONLY

begin

OPEN C3
FETCH NEXT FROM c3 INTO @t3_sys,@t3_all
WHILE @@FETCH_STATUS = 0
BEGIN
insert into @temp_qcard values(@t3_all)
FETCH NEXT FROM c3 INTO @t3_sys,@t3_all
end
end
close c3
deallocate c3
FETCH NEXT FROM c2 INTO @t2_sys,@t2_all
end
end
close c2
DEALLOCATE c2

FETCH NEXT FROM c1 INTO @t1_sys,@t1_all
END

CLOSE c1
DEALLOCATE c1
Insert @rec_card select groups_q+groups_cusip,groups_data from tbl_groups
where groups_system in (select tdata from @temp_qcard) and groups_seq>=1 and groups_alldata not like 'Q$%' order by groups_alldata

RETURN
END
==========================

While compiling this I am getting the Below error ....
==================
Server: Msg 1049, Level 15, State 1, Procedure udf_qcard, Line 10
Mixing old and new syntax to specify cursor options is not allowed.
Server: Msg 1049, Level 15, State 1, Procedure udf_qcard, Line 23
Mixing old and new syntax to specify cursor options is not allowed.
Server: Msg 1049, Level 15, State 1, Procedure udf_qcard, Line 35
Mixing old and new syntax to specify cursor options is not allowed.
=================

Can Anyone please help me how to resolve this issue...

Thanks with Regards.

-Mohit.

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Code Snippet
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(

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Code Block
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-- Add the parameters for the stored procedure here
@OLIssueID int = NULL,
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AS
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And the error I kept getting is:

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The data types varchar and varchar are incompatible in the modulo operator.

Msg 402, Level 16, State 1, Procedure sqlOutlookSearch, Line 21

The data types varchar and varchar are incompatible in the modulo operator.

Any help is appreciated.

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Nov 20, 2006

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The source fields from Access are int, int, int and varchar(512). The same is true of the destination within SQL Server 2005. the field 'Answer' is the varchar field in question....



I get the following error



Validating (Error)



Messages

Error 0xc02020f6: Data Flow Task: Column "Answer" cannot convert between unicode and non-unicode string data types.
(SQL Server Import and Export Wizard)


Error 0xc004706b: Data Flow Task: "component "Destination - Query" (28)" failed validation and returned validation status "VS_ISBROKEN".
(SQL Server Import and Export Wizard)


Error 0xc004700c: Data Flow Task: One or more component failed validation.
(SQL Server Import and Export Wizard)


Error 0xc0024107: Data Flow Task: There were errors during task validation.
(SQL Server Import and Export Wizard)


DTS used to be a very strong tool but a simple import such as this is causing me extreme grief and wondering of SQL2005 is ready for primetime. FYI SP1 is installed. I am running this from a workstation and not on the server if that makes a difference...

Any help would be appreciated.





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Sep 25, 2007

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Oct 18, 2007



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How does varchar(max) store info differently from varchar(250)? Either way doesn't it have to hold the container information? So the word "Crackers" have 8 characters to it and information sayings its 8 characters long in both cases. This meaning its taking up same amount of space?

Also my concern will be running queries off of it, does a varchar(max) choke up queries because the fields cannot be properly analyzed? Is varchar(250) any better?

Should I just go with char(250) and watch my db size explode?

Usually the data that is 250 characters contain a lot of blank space that is removed using a SPROC so its not usually 250 characters for long.

Any insight to this would be appreciated.

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Jan 10, 2007

I hvae a stored procedure that has this at the end of it:
BEGIN
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END
SET NOCOUNT OFF
 
SELECT Something
FROM Something
Joins…..
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now, ActionInsert returns a Value, and has a SELECT @ActionID at the end of the stored procedure.
What's happening, if that 2nd line that I pasted gets called, 2 result sets are being returned. How can I modify this SToredProcedure to stop returning the result set from ActionINsert?

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Hey,

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MSDN states that when storring a varchar, only the length of the data itself is used plus two bytes.
So, if you store "car" in a VarChar(50) it will take 5 bytes.
But when you store "car" in a VarChar(500) it will also take 5 bytes.

What is the reason users should define the parameter lenght?
Can you use VarChar(8000) whole the time, without any drawback?


Thanks

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select convert(varchar(16), getdate(), 101)+LEFT(REPLACE(convert(varchar, getdate(), 108), ':', ''),4)

From above query I get

mmddyyyyhhmm

but it' s yyyy and hour can not be separated

04/12/200702:05

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Thanks
Daniel

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Hi all,

I executed the following sql script successfuuly:

shcInLineTableFN.sql:

USE pubs

GO

CREATE FUNCTION dbo.AuthorsForState(@cState char(2))

RETURNS TABLE

AS

RETURN (SELECT * FROM Authors WHERE state = @cState)

GO

And the "dbo.AuthorsForState" is in the Table-valued Functions, Programmabilty, pubs Database.

I tried to get the result out of the "dbo.AuthorsForState" by executing the following sql script:

shcInlineTableFNresult.sql:

USE pubs

GO

SELECT * FROM shcInLineTableFN

GO


I got the following error message:

Msg 208, Level 16, State 1, Line 1

Invalid object name 'shcInLineTableFN'.


Please help and advise me how to fix the syntax

"SELECT * FROM shcInLineTableFN"
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Thanks in advance,
Scott Chang

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ali

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