Ntext && Text Storage - How Do These Work?

Nov 28, 2004

Howdy,


Can some one please explain how the storage of a huge text or ntext object ( say a string of characters 100 KB in size ) is carried out please?

With a data page maximum size of 8000 bytes, how does SQL handle the storage of such an string - it would obviously obverlap multiple rows etc.
Does the application writing it to the database have to split the object over multiple rows and manually keep track of which bit is in which row so it can be re-created later in correct sequence by adding the bits back together, or is it done some how differently?

Any help most welcome as this is a bit confusing.

Cheers,

SG.

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SQL ERROR - I Need DISTINCT But Can Use It With Image,ntext, Text - How To Work Aroud???

Oct 10, 2006

SQL ERROR - I need DISTINCT but can use it with image,ntext, text - How To work around???  ! more - How to Work around - MIN() I cant use it when having text in SELECT statement  The text, ntext, or image data type cannot be selected as DISTINCT.



Description: An
unhandled exception occurred during the execution of the current web
request. Please review the stack trace for more information about the
error and where it originated in the code.

Exception Details: System.Data.SqlClient.SqlException: The text, ntext, or image data type cannot be selected as DISTINCT.

Source Error:





An unhandled exception was generated during the execution of the
current web request. Information regarding the origin and location of
the exception can be identified using the exception stack trace below. 

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so the problem is how i can concatenate both values since i cant declare a variable of type text.

A solution may be dividing the text column into many varchar(8000) variables and then add them but i dont know how it can be implemented or if there's an easier solution

the code am trying:

CREATE TRIGGER InsteadTrigger on tbl
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if exists(select null from deleted)
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i tried the writetext and updatetext functions and the problem is always related to both columns concatenation


Any solution?

thx
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Hi there! I've read through several of these forums and am impressed by the talent out there. I'm hoping someone could share some insight on a little complication I've got.

I have a sproc that essentially is pulling all mail items from a profile, reading them in and storing them in a table. It is all working fine MINUS the fact that I cannot pass the message because it won't allow me to pass text or ntext.

If anyone has any ideas I would truly appreciate it. In the meantime I'll be searching through the forum looking for a way to make it happen.
Thx, Camey

Here's my code:

CREATE PROCEDURE USP_News_GETmail
AS

declare @status int
declare @msg_id varchar(64)
declare @originator varchar(255)
declare @cc_list varchar(255)
declare @msgsubject varchar(255)
declare @msgtext varchar(255)
declare @messages int
declare @resultmsg varchar(80)
declare @filename varchar(12)
declare @current_msg varchar(64)

declare @post_id int
declare@topic_id int
declare@forum_id int
declare@poster_id int
declare@post_time int
declare@poster_ip int
declare@post_username char(25)
declare@enable_bbcode smallint
declare@enable_html smallint
declare@enable_smilies smallint
declare@enable_sig smallint
declare@post_edit_time int
declare@post_edit_count smallint
declare@bbcode_uid char(10)
declare@post_subject char(60)
declare@post_text text

Set @msg_id = NULL
while (1=1)
begin
exec master..xp_findnextmsg @msg_id = @msg_id output
if @msg_id is null break

exec @status = master.dbo.xp_readmail
@msg_id,
@originator=@originator output,
@cc_list=@cc_list output,
@subject=@msgsubject output,
@message=@msgtext output

select @topic_id= 2000,
@forum_id = 1,
@poster_id= 3,
@post_time= Convert(int,getdate()),
@poster_ip= 1000196,
@post_username= 'yahoo-alibre',
@enable_bbcode= 1,
@enable_html= 0,
@enable_smilies= 0,
@enable_sig= 0,
@post_edit_time= NULL,
@post_edit_count= 0,
@bbcode_uid= NULL,
@post_subject= @msgsubject,
@post_text= @msgtext




SET IDENTITY_INSERT phpbb_test_posts ON

DECLARE @num int
SELECT @num=max(post_id)
FROM phpbb_test_posts
SELECT @num = @num + 1

INSERT INTO phpbb_test_posts (post_id,topic_id,forum_id,poster_id,post_time,pos ter_ip,post_username,enable_bbcode,enable_html,ena ble_smilies,enable_sig,post_edit_time,post_edit_co unt)
VALUES (@num,@topic_id,@forum_id,@poster_id,@post_time,@p oster_ip,@post_username,@enable_bbcode,@enable_htm l,@enable_smilies,@enable_sig,@post_edit_time,@pos t_edit_count)


INSERT INTO phpbb_test_posts_text (post_id,bbcode_uid,post_subject,post_text)
VALUES (@num,@bbcode_uid,@post_subject,@post_text)

exec master..xp_deletemail @msg_id


end
GO

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' Convert To Unicode

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Hai Friends...

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Connection Broken



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