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SQL XML

Posted on 2013-06-10
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Last Modified: 2013-06-10
The below T-SQL does work.  How can the below T-SQL be altered to work with the scenario of the contents of the variable @XML1 being in an XML column and you want the results of the SELECT statement to populate columns in the same table?  

declare @xml1 xml

SET @xml1 =
'<EDMed>
  <Desc>Tylenol</Desc>
  <Dose>500</Dose>
  <Unit>tablet(s)</Unit>
  <TimeGiven>05/09/2012 11:07</TimeGiven>
 </EDMed>'

SELECT  
       Tbl.Col.value('Desc[1]', 'varchar(15)') as [Description],  
       Tbl.Col.value('Dose[1]', 'varchar(15)') as [Dose],  
       Tbl.Col.value('Unit[1]', 'varchar(15)') as [Unit],
       Tbl.Col.value('TimeGiven[1]', 'varchar(20)') as [Time Given]
FROM   @xml1.nodes('//EDMed') Tbl(Col)
0
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Question by:dastaub
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6 Comments
 
LVL 14

Assisted Solution

by:Christopher Gordon
Christopher Gordon earned 1000 total points
ID: 39235851
--paste into management studio for example...

declare @xml1 xml                  --xml example 1
declare @xml2 xml                  --xml example 2

--sample table
declare @myXMLTable table (Id int identity(1,1), myXML xml)

--populate sample 1
SET @xml1 =
'<EDMed>
  <Desc>Tylenol</Desc>
  <Dose>500</Dose>
  <Unit>tablet(s)</Unit>
  <TimeGiven>05/09/2012 11:07</TimeGiven>
 </EDMed>'

--poulate sample 2
set @xml2 =  '<EDMed>
  <Desc>Chicken Nuggets</Desc>
  <Dose>1</Dose>
  <Unit>dozen(s)</Unit>
  <TimeGiven>05/01/2012 11:07</TimeGiven>
 </EDMed>'
 
insert into @myXMLTable
values (@xml1), (@xml2)
 

--t-sql to parse xml in field

SELECT  Id,
       myXML.value('(/EDMed/Desc)[1]', 'varchar(15)') as [Description],  
       myXML.value('(/EDMed/Dose)[1]', 'varchar(15)') as [Dose],  
       myXML.value('(/EDMed/Unit)[1]', 'varchar(15)') as [Unit],
       myXML.value('(/EDMed/TimeGiven)[1]', 'varchar(20)') as [Time Given]
       
FROM   @myXMLTable
0
 

Author Comment

by:dastaub
ID: 39236113
what does the [1] indicate?
0
 
LVL 49

Expert Comment

by:PortletPaul
ID: 39236426
[1] indicates the first occurrence of that node (as contained in the snippet you provided)
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LVL 49

Accepted Solution

by:
PortletPaul earned 1000 total points
ID: 39236447
with the requested update statement:
CREATE TABLE YourTable 
	(
     id int identity primary key, 
     description nvarchar(15), 
     dose nvarchar(15), 
     unit nvarchar(15), 
     timegiven nvarchar(20), 
     details xml
    );
INSERT INTO YourTable
(details)
values
('<EDMed>
  <Desc>Tylenol</Desc>
  <Dose>500</Dose>
  <Unit>tablet(s)</Unit>
  <TimeGiven>05/09/2012 11:07</TimeGiven>
 </EDMed>'
)

select
*
from yourtable
;

SELECT  
       details.value('(/EDMed/Desc)[1]', 'varchar(15)') as [Description],  
       details.value('(/EDMed/Dose)[1]', 'varchar(15)') as [Dose],  
       details.value('(/EDMed/Unit)[1]', 'varchar(15)') as [Unit],
       details.value('(/EDMed/TimeGiven)[1]', 'varchar(20)') as [Time Given]
FROM   yourtable
;

update yourtable
set
     description = details.value('(/EDMed/Desc)[1]', 'varchar(15)')
   , dose        = details.value('(/EDMed/Dose)[1]', 'varchar(15)')
   , unit        = details.value('(/EDMed/Unit)[1]', 'varchar(15)')
   , timegiven   = details.value('(/EDMed/TimeGiven)[1]', 'varchar(20)')
;


select
*
from yourtable
;

Open in new window

see it working at: http://sqlfiddle.com/#!3/4cdff/1
0
 

Author Comment

by:dastaub
ID: 39236615
-- Below is the solution that worked for me.  Thank You.

CREATE TABLE [dbo].[#Temp03a](  
      [ResponseXML] [xml] NOT NULL DEFAULT (''),
      [Description] [varchar](100) NOT NULL DEFAULT (''),
      [Dosage] [varchar](50) NOT NULL DEFAULT (''),
      [Unit] [varchar](50) NOT NULL DEFAULT (''),
      [TimeGiven] [varchar](25) NOT NULL DEFAULT (''),
         [TimeStopped] [varchar](25) NOT NULL DEFAULT ('')
) ON [PRIMARY]

update #Temp03a set [Description] = ResponseXML.value('(/EDMed/Desc)[1]', 'varchar(100)'),
Dosage = ResponseXML.value('(/EDMed/Dose)[1]', 'varchar(50)') ,
Unit= ResponseXML.value('(/EDMed/Unit)[1]', 'varchar(50)') ,
[TimeGiven] = ResponseXML.value('(/EDMed/TimeGiven)[1]', 'varchar(50)') ,
[TimeStopped] = ResponseXML.value('(/EDMed/TimeStopped)[1]', 'varchar(50)')
0
 
LVL 49

Expert Comment

by:PortletPaul
ID: 39236633
thanks - glad you got what you needed. Cheers, Paul
0

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