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MS SQL Columns To Rows

I have a table ItemNotes (ItemID int, Note varchar(255),NoteDate datetime) in a MS SQL Server2005 database.  I need to have all of the note and notedate fields for an itemID combined into the same row.  It is unknown how many Notes a given item has.  I have been attempting a cursor or pivot but I cannot seem to get it working.  Any assistance is appreciated.
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jmichael18
Asked:
jmichael18
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1 Solution
 
Tapan PattanaikSenior EngineerCommented:
can you share sample format of your table.
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PortletPaulfreelancerCommented:
Hi. What you are asking for is far from trivial, and instead of attempting to provide exactly what you have asked for this is an alternative suggestion. Rather than trying to provide an unknown number of columns (date/note, date/note, date/note etc.) could you survive with this information in a concatenated format (i.e. one large string column).

NOTES
[05/10/2013] <<note here>> [05/12/2013] <<note here>>. [05/20/2013] <<note here>> ...
please see this sqlfiddle http://sqlfiddle.com/#!3/580b4/2 which displays the result of the following 2 queries. The upper query embeds date into the string, the lower query does not.
select
  Items.id
, stuff((
          select case when nref = 1 then ' [' + x.ndate + '] ' + x.Note  else ' ' + x.Note end
          from (
                select
                  ItemID
                , convert(varchar,Notedate, 101) as ndate
                , Note
                , row_number() over (partition by itemID, convert(varchar,Notedate, 101) order by NoteDate) as nref
                from ItemNotes
               ) as x
           where x.ItemID = Items.ID
           FOR XML path('')
          ), 1, 1, '') as Notes
from Items
;

select
  Items.id
, stuff((
           select ' ' + ItemNotes.Note
           from ItemNotes
           where ItemNotes.ItemID = Items.ID
           FOR XML path('')
          ), 1, 1, '') as Notes
from Items
;

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The following variant would place most recent notes first, see http://sqlfiddle.com/#!3/580b4/7 
select
  Items.id
, stuff((
          select top 100 percent
            case when nref = 1 then ' [' + x.ndate + '] ' + x.Note  else ' ' + x.Note end
          from (
                select
                  ItemID
                , convert(varchar,Notedate, 101) as ndate
                , NoteDate
                , Note
                , row_number() over (partition by itemID, convert(varchar,Notedate, 101) order by NoteDate) as nref
                from ItemNotes
               ) as x
           where x.ItemID = Items.ID
           order by NoteDate DESC
           FOR XML path('')
          ), 1, 1, '') as Notes
from Items
;

Open in new window

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jmichael18Author Commented:
Works great.  Thank you so much.
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PortletPaulfreelancerCommented:
no problem, which one did you use? (with dates?)
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