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varchar(8000) limits,how to overcome it in storedprocedure?

Posted on 2006-11-13
10
1,060 Views
Last Modified: 2012-05-05
Hello Expert,

I face problem where my varchar stores data which over 8000 char.
So i cant execute my storedprocedure. got error
May i know how to overcome this varchar(8000) limits?
The Following is my storedprocedure :

set ANSI_NULLS ON
set QUOTED_IDENTIFIER ON
go




Alter PROCEDURE [dbo].[MySP_ErrorLog]
AS
DECLARE @strXML varchar(8000)
DECLARE @idoc int
DECLARE @QueueID varchar(20)
DECLARE @XMLDATA varchar(8000)



DECLARE TB_LnItem_Cursor CURSOR FOR
Select QueueID, XMLData from tb_batchpocreation_Queue
Open TB_LnItem_Cursor

FETCH NEXT FROM TB_LnItem_Cursor INTO @QueueID, @XMLDATA
WHILE (@@fetch_status=0)
BEGIN
SET @strXML = @XMLDATA

EXEC sp_xml_preparedocument @idoc OUTPUT, @strXML
SELECT RegionCode
FROM OPENXML(@idoc, '/BatchPOCreation/Records/Record/RegionCode')
WITH (RegionCode varchar(250)
 
  )
EXEC sp_xml_removedocument @idoc

FETCH NEXT FROM TB_LnItem_Cursor INTO @QueueID, @XMLDATA

END
CLOSE TB_LnItem_Cursor
DEALLOCATE TB_LnItem_Cursor


My @XMLDATA stores over 8000 chars.


0
Comment
Question by:sonny_j81
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10 Comments
 
LVL 11

Expert Comment

by:deroby
ID: 17929078
What version of MSSQL are you running ?

SQL2k5 supports both a varchar(max) (= virtually unlimited string) and a native xml datatype
0
 
LVL 1

Author Comment

by:sonny_j81
ID: 17929102
i am using SQL server 2000
0
 
LVL 1

Author Comment

by:sonny_j81
ID: 17929131
if sql server 2000 really cant do it, then i plan to directly read the xml data from crystal report.
But i dunno wat is the step to read the xmldata field which is stored in  tb_batchpocreation_Queue table?
Coz i need to retrieve Data inside this xmlData field.

The Data in xmldata field is like this:

<BatchPOCreation><Records><Record><ID>1</ID><RegionCode>SEL</RegionCode></Record></Records></BatchPOCreation>
0
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LVL 11

Expert Comment

by:deroby
ID: 17929189
Honestly, I never really played with XML a lot as I'm lost why people would want to 'explode data' into a 'readable format' only to feed it to something that needs to convert it back to a record set.
Anyway, wouldn't it bee possible to use the prepare document statement as to create the output in one go and have that returned directly to Crystal Reports ?

(afaik Crystal Reports gladly acceppets recordsets, so why bother going via XML in the first place ? ... my 2 (heavily biased) cents )
0
 
LVL 11

Expert Comment

by:Otana
ID: 17929314
You could use multiple varchar(8000) variables, nad test the length each time you add something to them. If the first gets to 8000 characters, start filling the second, etc.
0
 
LVL 28

Accepted Solution

by:
imran_fast earned 500 total points
ID: 17929326
what is the datatype of XMLData in yourtable TB_LnItem_Cursor?
I think it is text or ntext
in that case you have to define 2 or three variables of varchar(8000)
and move first(8000) characters in variable1 and the rest in variable2

EXEC sp_xml_preparedocument @idoc OUTPUT, @strXML1 + isnull(@strXML2,'')
0
 
LVL 75

Expert Comment

by:Aneesh Retnakaran
ID: 17929339
try this

CREATE PROCEDURE [dbo].[MySP_ErrorLog]
 @strXML varchar(8000)  = null
AS
BEGIN
    DECLARE @idoc int
    DECLARE @QueueID varchar(20)
    DECLARE TB_LnItem_Cursor CURSOR FOR
    Select QueueID               --- Fetch only the QueID
    from tb_batchpocreation_Queue

    Open TB_LnItem_Cursor
   
    FETCH NEXT FROM TB_LnItem_Cursor INTO @QueueID
    WHILE (@@fetch_status=0)
    BEGIN
        SELECT @strXML = [XMLDATA]
        from tb_batchpocreation_Queue
       
        EXEC sp_xml_preparedocument @idoc OUTPUT, @strXML
        SELECT RegionCode
        FROM OPENXML(@idoc, '/BatchPOCreation/Records/Record/RegionCode')
        WITH (RegionCode varchar(250)
         
          )
        EXEC sp_xml_removedocument @idoc
       
        FETCH NEXT FROM TB_LnItem_Cursor INTO @QueueID
   
    END
    CLOSE TB_LnItem_Cursor
    DEALLOCATE TB_LnItem_Cursor

END

0
 
LVL 1

Author Comment

by:sonny_j81
ID: 17930524
Dear imran_fast,

Can u pls write in detail on how to store the first 8000 in first variable & the rest store in second variable?

Very Appreciate for your affort.
Thanks  
0
 
LVL 1

Author Comment

by:sonny_j81
ID: 17935202
Dear aneeshattingal,

i have paste your code and run it. The error occur which is "Msg 6603, Level 16, State 1, Procedure sp_xml_preparedocument, Line 19
XML parsing error: Element was not closed."
0
 
LVL 75

Expert Comment

by:Aneesh Retnakaran
ID: 17935291
can you compare the length of  both the XMLs using DATALENGTH()
0

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