How to find and replace data in xml by xquery

Question

How to find and replace data in xml by xquery

Sudip Bhatt 2,261

How to find and replace data by xquery in below xml. below xml is stored in a table column whose data type is xml.

i will have a store procedure where i will send line item and xfund code as parameter. i want to search group key by line item & replace xfund code in xml with new xfundcode will be provided to SP.

speciall see this line where lineitem and xfund code is there concatinated by ~ sign.
<GroupKey>Consensus Model~Total Revenue~TRIN~NBM~~1~ZB-P1</GroupKey>

GroupKey field has many data concatinated by ~ sign.
line item and xfundcode is 2nd and 3rd element in group key separated by ~sign.
i want to search line item in group key and replace old xfundcode by new xfundcode.
Lineitem and new xfundcode will be pass to SP as parameter

in group key first element is Section, second element is Line Item and second element is xfundcode. all are separated by ~ sign.

the below xml is stored in table column.
so please share a query by which i can use to find line item in groupkey in the stored xml in table column. if line item found then xfund code in group key will be replaced with a xfund code which will be passed to SP and xml will be updated in table column.

<?xml version="1.0" encoding="utf-8"?>
<PWR_ViewAll>
  <dgvViewAll_Vertical>
    <Section_x0020_>ZB-P1</Section_x0020_>
    <LineItem>B. Riley FBR Inc.</LineItem>
    <Revise_x0020_Date>08-21-2020</Revise_x0020_Date>
    <GroupKey>Consensus Model~Total Revenue~TRIN~NBM~~1~ZB-P1</GroupKey>
  </dgvViewAll_Vertical>
<dgvViewAll_Vertical>
    <Section_x0020_>CL</Section_x0020_>
    <LineItem>Deutsche Bank</LineItem>
    <Revise_x0020_Date>02-28-2020</Revise_x0020_Date>
    <GroupKey>Consensus Model~Total Revenue~TRIN~NBM~~1~CL</GroupKey>
  </dgvViewAll_Vertical>
</PWR_ViewAll>

Thanks

EDIT

Sir thanks for your link but my scenario is bit different i want to search data in group key

<GroupKey>Consensus Model~Total Revenue~TRIN~NBM~~1~ZB-P1</GroupKey> has few data in it concatenated by ~ sign.

so i want to search line item in group key field. if match then replace it xfund code by new xfund code

1) first element in GroupKey is section, 2nd one is line item, 3rd one is xfundcode and rest element in group key not known to me.

so i want to search on group key in xml and if line item found then replace xfundcode. see my code here. now tell me how could i replace xfundcode in xml and update that xml in table.

declare @xml xml
declare @li varchar(max) ='Segment Detail'
declare @newXfundCode varchar(max) ='TEST'

CREATE TABLE #tmpData (id INT, xmldata xml)  

INSERT INTO #tmpData(id,xmldata) values (1,N'<?xml version="1.0" encoding="utf-16"?>
 <PWR_ViewAll>
   <dgvViewAll_Vertical>
     <Section_x0020_>ZB-P1</Section_x0020_>
     <LineItem>B. Riley FBR Inc.</LineItem>
     <Revise_x0020_Date>08-21-2020</Revise_x0020_Date>
     <GroupKey>Consensus Model~Total Revenue~TRIN~NBM~~1~ZB-P1</GroupKey>
   </dgvViewAll_Vertical>
 <dgvViewAll_Vertical>
     <Section_x0020_>CL</Section_x0020_>
     <LineItem>Deutsche Bank</LineItem>
     <Revise_x0020_Date>02-28-2020</Revise_x0020_Date>
     <GroupKey>Segment Detail~Total Revenue~TEST~NBM~~1~CL</GroupKey>
   </dgvViewAll_Vertical>
 </PWR_ViewAll>')

SELECT @xml=xmldata from #tmpData where ID=1


SELECT col.value('(GroupKey/text())[1]', 'VARCHAR(MAX)')
FROM @xml.nodes('/PWR_ViewAll/dgvViewAll_Vertical') AS tab (col)
WHERE  CHARINDEX(@li, col.value('(GroupKey/text())[1]', 'VARCHAR(MAX)'))>0 

Drop table #tmpData

Yitzhak Khabinsky 27,046 Reputation points

2020-11-10T13:08:45.6+00:00

@Sudip Bhatt ,
You are not new here on this forum. Your posts create a flurry of back-and-forth replies without any resolution.

A solution to it is very simple.
While asking a question you need to provide a minimal reproducible example:
(1) DDL and sample data population, i.e. CREATE table(s) plus INSERT, T-SQL statements.
(2) What you need to do, i.e. logic, and your attempt implementation of it in T-SQL.
(3) Desired output based on the sample data in the #1 above.
(4) Your SQL Server version (SELECT @@version;)
Sudip Bhatt 2,261 Reputation points

2020-11-10T16:10:26.977+00:00

Sir it is not clear what i am asking for this post?

in this post i have mentioned my xml which is stored in a field of a table. now i will extract that xml from there and find line item in GroupKey field.
GroupKey field has many data concatinated by ~ sign.

line item and xfundcode is 2nd and 3rd element in group key separated by ~sign.

i want to search line item in group key and replace old xfundcode by new xfundcode. new xfund code will be passed to SP.

i asked it. what is not clear....please tell me in my question.
Yitzhak Khabinsky 27,046 Reputation points

2020-11-10T18:21:22.063+00:00

Please edit your original post, add there all 4 bullets: ##1-4.
Also, please use for each bullet its header directly from my previous comment.
Erland Sommarskog 137.7K Reputation points MVP Volunteer Moderator

2020-11-10T22:57:33.167+00:00

Sir it is not clear what i am asking for this post?

No. And furthermore, Sir, your track record in this forum is not the best, so some of us are growing tired of trying to guess what you mean.

You have one XML document, which you apparently want to update. But what are your inputs? And what is the expected outcome of the operation?
Sudip Bhatt 2,261 Reputation points

2020-11-11T10:15:02.827+00:00

Sir, i update my questions. please have look and tell me still any area is not clear. thanks
Sudip Bhatt 2,261 Reputation points

2020-11-11T10:15:14.987+00:00

Sir, i update my questions. please have look and tell me still any area is not clear. thanks

4 answers

Your answer

Yitzhak Khabinsky 27,046 Reputation points

2020-11-10T13:08:45.6+00:00

@Sudip Bhatt ,
You are not new here on this forum. Your posts create a flurry of back-and-forth replies without any resolution.

A solution to it is very simple.
While asking a question you need to provide a minimal reproducible example:
(1) DDL and sample data population, i.e. CREATE table(s) plus INSERT, T-SQL statements.
(2) What you need to do, i.e. logic, and your attempt implementation of it in T-SQL.
(3) Desired output based on the sample data in the #1 above.
(4) Your SQL Server version (SELECT @@version;)
Sudip Bhatt 2,261 Reputation points

2020-11-10T16:10:26.977+00:00

Sir it is not clear what i am asking for this post?

in this post i have mentioned my xml which is stored in a field of a table. now i will extract that xml from there and find line item in GroupKey field.
GroupKey field has many data concatinated by ~ sign.

line item and xfundcode is 2nd and 3rd element in group key separated by ~sign.

i want to search line item in group key and replace old xfundcode by new xfundcode. new xfund code will be passed to SP.

i asked it. what is not clear....please tell me in my question.
Yitzhak Khabinsky 27,046 Reputation points

2020-11-10T18:21:22.063+00:00

Please edit your original post, add there all 4 bullets: ##1-4.
Also, please use for each bullet its header directly from my previous comment.
Erland Sommarskog 137.7K Reputation points MVP Volunteer Moderator

2020-11-10T22:57:33.167+00:00

Sir it is not clear what i am asking for this post?

No. And furthermore, Sir, your track record in this forum is not the best, so some of us are growing tired of trying to guess what you mean.

You have one XML document, which you apparently want to update. But what are your inputs? And what is the expected outcome of the operation?
Sudip Bhatt 2,261 Reputation points

2020-11-11T10:15:02.827+00:00

Sir, i update my questions. please have look and tell me still any area is not clear. thanks
Sudip Bhatt 2,261 Reputation points

2020-11-11T10:15:14.987+00:00

Sir, i update my questions. please have look and tell me still any area is not clear. thanks

Answer 1

EchoLiu-MSFT 14,626

Hi @Sudip Bhatt ，

Sorry, I still don't know your specific question. But your title gives some hints, I found a similar case, maybe it can help you：
Replace value in XML using SQL

If you have any question, please feel free to let me know.
If the response is helpful, please click "Accept Answer" and upvote it.

Regards
Echo

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Sudip Bhatt 2,261 Reputation points

2020-11-11T10:09:54.367+00:00

sir i explained again what i am looking for. your link i have seen which may not work for my scenario. see my EDIT section. looking for your guidance. thanks

Answer 2

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Answer 3

I got another solution.

DECLARE @xml xml
DECLARE @li varchar(max) ='Segment Detail'
DECLARE @newXfundCode varchar(max) ='TEST'

CREATE TABLE #tmpData (id INT, xmldata xml)  

INSERT INTO #tmpData (id, xmldata) 
VALUES (1,N'<?xml version="1.0" encoding="utf-16"?>
<PWR_ViewAll>
<dgvViewAll_Vertical>
  <Section_x0020_>ZB-P1</Section_x0020_>
  <LineItem>B. Riley FBR Inc.</LineItem>
  <Revise_x0020_Date>08-21-2020</Revise_x0020_Date>
  <GroupKey>Consensus Model~Total Revenue~TRIN~NBM~~1~ZB-P1</GroupKey>
</dgvViewAll_Vertical>
<dgvViewAll_Vertical>
  <Section_x0020_>CL</Section_x0020_>
  <LineItem>Deutsche Bank</LineItem>
  <Revise_x0020_Date>02-28-2020</Revise_x0020_Date>
  <GroupKey>Segment Detail~Total Revenue~RD_100~NBM~~1~CL</GroupKey>
</dgvViewAll_Vertical>
</PWR_ViewAll>')

SELECT @xml=xmldata from #tmpData where ID=1

declare 
    *anonymous user*GroupKeyvalue varchar(100), 
    @newGroupKeyValue varchar(100);

SELECT *anonymous user*GroupKeyvalue = col.value('(GroupKey/text())[1]', 'VARCHAR(MAX)')
FROM @xml.nodes('/PWR_ViewAll/dgvViewAll_Vertical') AS tab (col)
WHERE  CHARINDEX(@li, col.value('(GroupKey/text())[1]', 'VARCHAR(MAX)'))>0;


--@newGroupKeyValue = *anonymous user*groupkeyvalue but stuff/"replace" string between 2nd&3rd ~ with @newXfundCode
select  @newGroupKeyValue = 
--"replace/stuff" the old xfundcode := all chars from position of 2nd ~ (+1) till position of the 2nd ~ (minus 1) with an empty string
stuff(*anonymous user*GroupKeyvalue, 
--starting from position of 2nd ~ +1
charindex('~', *anonymous user*GroupKeyvalue, charindex('~', *anonymous user*GroupKeyvalue, 1)+1)+1,
--as many characters as exist between 3rd ~ and 2nd ~ (excluding ~)
charindex('~', *anonymous user*GroupKeyvalue, charindex('~', *anonymous user*GroupKeyvalue, charindex('~', *anonymous user*GroupKeyvalue, 1)+1)+1)-1
-
charindex('~', *anonymous user*GroupKeyvalue, charindex('~', *anonymous user*GroupKeyvalue, 1)+1),
--stuff the new xfundcode
@newXfundCode
);

--test
select *anonymous user*GroupKeyValue as oldgroupkeyvalue, @newGroupKeyValue as newgroupkeyvalue;


--test
select @xml as oldxml;

--modify xml, replace the text of GroupKey element whose text equals *anonymous user*GroupKeyValue with @newGroupKeyValue
--if newGroupKeyValue is not null etc...
set @xml.modify('
  replace value of (/PWR_ViewAll/dgvViewAll_Vertical/GroupKey[.=sql:variable("*anonymous user*GroupKeyValue")]/text())[1]  
  with sql:variable("@newGroupKeyValue") 
'
);

select @xml as newxml;


--update #tmpData set xmldata = @xml where ID=1;
--select * from #tmpData;

Drop table #tmpData

i could change the where clause (that have provided) to search/get the first groupkey value which has 'Total Revenue':

WHERE CHARINDEX(@li, col.value('(GroupKey/text())[1]', 'VARCHAR(MAX)'))>0; -->

WHERE CHARINDEX(@li+'~Total Revenue~', col.value('(GroupKey/text())[1]', 'VARCHAR(MAX)'))>0;

Yitzhak Khabinsky 27,046 Reputation points

2020-11-16T12:56:45.2+00:00

Your method has deficiencies. It is not checking if the 2nd token contains "Total Revenue" value.

XML data model is based on ordered sequences. That's why it is so easy to get to 2nd, 3rd, etc. token in the sequence without any search.
Sudip Bhatt 2,261 Reputation points

2020-11-16T16:07:52.607+00:00

Thanks you sir. i will check and let you know.

Answer 4

I have update text in xml different way. full code.

DECLARE @xml xml
DECLARE @li varchar(max) ='Consensus Model'
DECLARE *anonymous user*XfundCode varchar(max) ='TRIN'
DECLARE @newXfundCode varchar(max) ='TEST105'
DECLARE @NewGroupKey NVARCHAR(max) 

CREATE TABLE #tmpData (id INT, xmldata xml)  

 INSERT INTO #tmpData (id, xmldata) 
 VALUES (1,N'<?xml version="1.0" encoding="utf-16"?>
 <PWR_ViewAll>
 <dgvViewAll_Vertical>
   <Section_x0020_>ZB-P1</Section_x0020_>
   <LineItem>B. Riley FBR Inc.</LineItem>
   <Revise_x0020_Date>08-21-2020</Revise_x0020_Date>
   <GroupKey>Consensus Model~Total Revenue~TRIN~NBM~~1~ZB-P1</GroupKey>
 </dgvViewAll_Vertical>
 <dgvViewAll_Vertical>
   <Section_x0020_>CL</Section_x0020_>
   <LineItem>Deutsche Bank</LineItem>
   <Revise_x0020_Date>02-28-2020</Revise_x0020_Date>
   <GroupKey>Segment Detail~Total Revenue~RD_100~NBM~~1~CL</GroupKey>
 </dgvViewAll_Vertical>
 </PWR_ViewAll>')

SELECT @xml=xmldata from #tmpData where ID=1
DECLARE @r INT =1
DECLARE @Cntr INT = 0

CREATE TABLE #TempData1
(
    ID  INT Identity,
    GroupKey NVARCHAR(MAX)
)    
 DECLARE 
     *anonymous user*GroupKeyvalue nvarchar(100), 
     @newGroupKeyValue nvarchar(100),
     @GrpKey nvarchar(MAX);

 INSERT INTO #TempData1 
     SELECT col.value('(GroupKey/text())[1]', 'VARCHAR(MAX)')
     FROM @xml.nodes('/PWR_ViewAll/dgvViewAll_Vertical') AS tab (col)
     WHERE  CHARINDEX(@li, col.value('(GroupKey/text())[1]', 'VARCHAR(MAX)'))>0

SELECT @Cntr = MAX(ID) FROM #TempData1
While @r<=@Cntr
BEGIN
    SELECT @GrpKey=GroupKey FROM #TempData1 WHERE ID=@r

    IF CHARINDEX(@li,@GrpKey) > 0 AND CHARINDEX(*anonymous user*XfundCode,@GrpKey) > 0
    BEGIN

        SET *anonymous user*GroupKeyValue=@GrpKey

        SELECT * INTO #tmpSingleRec FROM
        (SELECT ID,[DATA]  FROM SplitStringToTable(@GrpKey,'~')) a

        IF EXISTS(SELECT count(*) FROM #tmpSingleRec)
        BEGIN
            UPDATE #tmpSingleRec SET DATA=@newXfundCode WHERE ID=3
            SELECT  @NewGroupKey=COALESCE(@NewGroupKey + '~', '')+[DATA]  FROM #tmpSingleRec

             set @xml.modify('
               replace value of (/PWR_ViewAll/dgvViewAll_Vertical/GroupKey[.=sql:variable("*anonymous user*GroupKeyValue")]/text())[1]  
               with sql:variable("@NewGroupKey") 
             '
             );

        END
    END
    SET @r=@r+1
END

UPDATE #tmpData SET xmldata=@xml WHERE ID=1
SELECT * FROM #tmpData


IF OBJECT_ID('TempDB..#TempData1') IS NOT NULL  
BEGIN  
    drop table #TempData1  
END  
IF OBJECT_ID('TempDB..#tmpData') IS NOT NULL  
BEGIN  
    drop table #tmpData  
END  
IF OBJECT_ID('TempDB..#tmpSingleRec') IS NOT NULL  
BEGIN  
    drop table #tmpSingleRec  
END