<a>
<b>111</b>
<c>AAA</c>
<b>222</b>
<c>BBB</c>
<b>333</b>
<c>CCC</c>
</a>
The above value is found in the an XML typed column in SQL Server.
I want to find the value for node located after node with the value of "111". Can this be done using XQuery?
So far I have:
SELECT X.Y.value('('b[.="111"])[1]', 'varchar(10)') AS 'MyColumn'
FROM DBTable
CROSS APPLY DocXml.nodes('/a') AS X(Y);
This gets me the first node but I haven't been able to get the sibling.
Unfortunately SQL Server does not support sibling axes, which would have made this simpler.
Instead, you need to do the following
Save the b node into a variable using let
Take all nodes of the root by using *, filter by checking each one to see if it follows b, return the first one.
Note that you should use text() to get the inner text of a node, rather than relying on implicit conversion.
SELECT
x1.a.value('let $b := b[text() = "111"][1] return (*[. >> $b]/text())[1]','varchar(100)')
FROM DBTable t
CROSS APPLY t.DocXml.nodes('/a') x1(a);
db<>fiddle
Related
Lets say i have this data in my db
/
/1/
/1/1/
/1/2/
/1/2/1/
/2/1/
/2/1/1/
/2/2/1/
I want to get for each row the last child within the hirarchyId
I have tried to use the getdecendent and getancestor but it wont gives me what i need
I have tried getAncestor with negative number thinking maybe it will go from the end but no luck
Is there a built in way to get the value of a specific level from hierarchyID
…
select *, h.GetReparentedValue(isnull(h.GetAncestor(1),h), hierarchyid::GetRoot()/*..or '/' */) as lastnode
from
(
values (cast('/' as hierarchyid)),('/1/'),('/1/2/'), ('/1/2/3/4/5/')
) as v(h);
I'm new to Xpath and This is my XML . I'm trying to the get the attribute value #name in the appl/*__job tag and the value 'TESTQUEUE 'in the node snmp_notify/message and I'm taking one step at a time. As of now I was able to get the child nodes of all _job, but I couldn't get the value in the node /snmp_notifylist/snmp_notify/message. This is the SQL and Could someone help me with identifying where I got stuck.
This is the Sample XML Document stored as DEFINITION in the table TAB_AR.
<appl xmlns="http://dto.wa.ca.com/application" name="TEST_NEW_AGENT">
<version>12.0</version>
<comment />
<unix_job name="TEST_JOB">
<dependencies><relcount>0</relcount></dependencies>
<snmp_notifylist>
<snmp_notify>
<returncode>4</returncode>
<monitor_states><monitor_state>FAILED</monitor_state></monitor_states>
<snmpagent />
<message>TICKET TESTQUEUE TSTMSG</message>
</snmp_notify>
</snmp_notifylist>
</unix_job>
<link name="HOLD_LINK">
<dependencies><relcount>0</relcount></dependencies>
<hold>true</hold>
<job_ancestor_wait_default_ignore>true</job_ancestor_wait_default_ignore>
</link>
<sftp_job name="TEST_SFTP1">
<dependencies><relcount>0</relcount></dependencies>
<snmp_notifylist>
<snmp_notify>
<returncode>4</returncode>
<monitor_states>
<monitor_state>FAILED</monitor_state>
</monitor_states>
<snmpagent />
<message>TICKET MFG1AWA TSTMSG</message>
</snmp_notify>
</snmp_notifylist>
</sftp_job>
</appl>
And this is the SQL I wrote,
SELECT
SFTP_Job_name = DEFT1.value('(#name)[1]','nvarchar(max)'),
Server_Address = DEFT1.query('local-name(/*:snmp_notifylist/*:snmp_notify/*:message)')
from (select CAST([DEFINITION] as XML) as DEFT from TAB_AR)TAB
CROSS APPLY TAB.DEFT.nodes('/*:appl/*[fn:contains(local-name(),"_job")]') as XMLTAB1(DEFT1)
You were close...
In this line I'm not sure, what you really wanted to get:
DEFT1.query('local-name(/*:snmp_notifylist/*:snmp_notify/*:message)')
With local-name() you can return the name of one specific node. As you are reading from several nodes ending on _job it perfectly makes sense to return the name of the element you are reading from.
But you are telling us, that you are trying to read the <message> too. Might be, that you are mixing two calls in one line?
I slightly modified your code:
SELECT
SFTP_Job_name = DEFT1.value('(#name)[1]','nvarchar(max)')
,NodeName = DEFT1.value('local-name(.)','nvarchar(max)')
,Server_Address = DEFT1.value('(*:snmp_notifylist/*:snmp_notify/*:message)[1]','nvarchar(max)')
from (select CAST([DEFINITION] as XML) as DEFT from TAB_AR)TAB
CROSS APPLY TAB.DEFT.nodes('/*:appl/*[fn:contains(local-name(.),"_job")]') as XMLTAB1(DEFT1);
This returns
SFTP_Job_name NodeName Server_Address
TEST_SFTP1 sftp_job TICKET MFG1AWA TSTMSG
TEST_JOB unix_job TICKET TESTQUEUE TSTMSG
Like Roger Wolf pointed out, it was better to read with a specified namespaces like this:
WITH XMLNAMESPACES (default 'http://dto.wa.ca.com/application')
SELECT
SFTP_Job_name = DEFT1.value('(#name)[1]','nvarchar(max)')
,NodeName = DEFT1.value('local-name(.)','nvarchar(max)')
,Server_Address = DEFT1.value('(snmp_notifylist/snmp_notify/message)[1]','nvarchar(max)')
from (select CAST([DEFINITION] as XML) as DEFT from TAB_AR)TAB
CROSS APPLY TAB.DEFT.nodes('/appl/*[fn:contains(local-name(.),"_job")]') as XMLTAB1(DEFT1);
The general rule is: Be as specific as possible!
Hint
If you can change this, you should store your XML in a column of type XML.
This construction from (select CAST([DEFINITION] as XML) as DEFT from TAB_AR)TAB should really not be necessary...
Might be, that your column is XML actually and you just did not know how to transfer the code you found somewhere to get the right syntax for the .nodes()? In this case just try this:
SELECT
SFTP_Job_name = DEFT1.value('(#name)[1]','nvarchar(max)')
,NodeName = DEFT1.value('local-name(.)','nvarchar(max)')
,Server_Address = DEFT1.value('(*:snmp_notifylist/*:snmp_notify/*:message)[1]','nvarchar(max)')
from TAB_AR
CROSS APPLY TAB_AR.[DEFINITION].nodes('/*:appl/*[fn:contains(local-name(.),"_job")]') as XMLTAB1(DEFT1);
This seems to be working:
with xmlnamespaces (default 'http://dto.wa.ca.com/application')
select j.c.value('./#name', 'sysname') as [JobName],
m.c.value('./text()[1]', 'varchar(max)') as [MessageText]
from (
select cast(t.[Definition] as xml) as [Deft] from tab_ar t
) sq
cross apply sq.Deft.nodes('/appl/*[fn:contains(local-name(),"_job")]') j(c)
cross apply j.c.nodes('./snmp_notifylist/snmp_notify/message') m(c);
After that, splitting the string by spaces and taking the middle part should be relatively trivial.
I have an xml column called OrderXML in an Orders table...
there is an XML XPath like this in the table...
/Order/InternalInformation/InternalOrderBreakout/InternalOrderHeader/InternalOrderDetails/InternalOrderDetail
There InternalOrderDetails contains many InternalOrderDetail nodes like this...
<InternalOrderDetails>
<InternalOrderDetail>
<Item_Number>FBL11REFBK</Item_Number>
<CountOfNumber>10</CountOfNumber>
<PriceLevel>FREE</PriceLevel>
</InternalOrderDetail>
<InternalOrderDetail>
<Item_Number>FCL13COTRGUID</Item_Number>
<CountOfNumber>2</CountOfNumber>
<PriceLevel>NONFREE</PriceLevel>
</InternalOrderDetail>
</InternalOrderDetails>
My end goal is to modify the XML in the OrderXML column IF the Item_Number of the node contains COTRGUID (like '%COTRGUID') AND the PriceLevel=NONFREE. If that condition is met I want to change the PriceLevel column to equal FREE.
I am having trouble with both creating the xpath expression that finds the correct nodes (using OrderXML.value or OrderXML.exist functions) and updating the XML using the OrderXML.modify function).
I have tried the following for the where clause:
WHERE OrderXML.value('(/Order/InternalInformation/InternalOrderBreakout/InternalOrderHeader/InternalOrderDetails/InternalOrderDetail/Item_Number/node())[1]','nvarchar(64)') like '%13COTRGUID'
That does work, but it seems to me that I need to ALSO include my second condition (PriceLevel=NONFREE) in the same where clause and I cannot figure out how to do it. Perhaps I can put in an AND for the second condition like this...
AND OrderXML.value('(/Order/InternalInformation/InternalOrderBreakout/InternalOrderHeader/InternalOrderDetails/InternalOrderDetail/PriceLevel/node())[1]','nvarchar(64)') = 'NONFREE'
but I am afraid it will end up operating like an OR since it is an XML query.
Once I get the WHERE clause right I will update the column using a SET like this:
UPDATE Orders SET orderXml.modify('replace value of (/Order/InternalInformation/InternalOrderBreakout/InternalOrderHeader/InternalOrderDetails/InternalOrderDetail/PriceLevel[1]/text())[1] with "NONFREE"')
However, I ran this statement on some test data and none of the XML columns where updated (even though it said zz rows effected).
I have been at this for several hours to no avail. Help is appreciated. Thanks.
if you don't have more than one node with your condition in each row of Orders table, you can use this:
update orders set
data.modify('
replace value of
(
/Order/InternalInformation/InternalOrderBreakout/
InternalOrderHeader/InternalOrderDetails/
InternalOrderDetail[
Item_Number[contains(., "COTRGUID")] and
PriceLevel="NONFREE"
]/PriceLevel/text()
)[1]
with "FREE"
');
sql fiddle demo
If you could have more than one node in one row, there're a several possible solutions, none of each is really elegant, sadly.
You can reconstruct all xmls in table - sql fiddle demo
or you can do your updates in the loop - sql fiddle demo
This may get you off the hump.
Replace #HolderTable with the name of your table.
SELECT T2.myAlias.query('./../PriceLevel[1]').value('.' , 'varchar(64)') as MyXmlFragmentValue
FROM #HolderTable
CROSS APPLY OrderXML.nodes('/InternalOrderDetails/InternalOrderDetail/Item_Number') as T2(myAlias)
SELECT T2.myAlias.query('.') as MyXmlFragment
FROM #HolderTable
CROSS APPLY OrderXML.nodes('/InternalOrderDetails/InternalOrderDetail/Item_Number') as T2(myAlias)
EDIT:
UPDATE
#HolderTable
SET
OrderXML.modify('replace value of (/InternalOrderDetails/InternalOrderDetail/PriceLevel/text())[1] with "MyNewValue"')
WHERE
OrderXML.value('(/InternalOrderDetails/InternalOrderDetail/PriceLevel)[1]', 'varchar(64)') = 'FREE'
print ##ROWCOUNT
Your issue is the [1] in the above.
Why did I put it there?
Here is a sentence from the URL listed below.
Note that the target being updated must be, at most, one node that is explicitly specified in the path expression by adding a "[1]" at the end of the expression.
http://msdn.microsoft.com/en-us/library/ms190675.aspx
EDIT.
I think I've discovered the the root of your frustration. (No fix, just the problem).
Note below, the second query works.
So I think the [1] is some cases is saying "only ~~search~~ the first node".....and not (as you and I were hoping)...... "use the first node..after you find a match".
UPDATE
#HolderTable
SET
OrderXML.modify('replace value of (/InternalOrderDetails/InternalOrderDetail/PriceLevel/text())[1] with "MyNewValue001"')
WHERE
OrderXML.value('(/InternalOrderDetails/InternalOrderDetail/PriceLevel[text() = "NONFREE"])[1]', 'varchar(64)') = 'NONFREE'
/* and OrderXML.value('(/InternalOrderDetails/InternalOrderDetail/Item_Number)[1]', 'varchar(64)') like '%COTRGUID' */
UPDATE
#HolderTable
SET
OrderXML.modify('replace value of (/InternalOrderDetails/InternalOrderDetail/PriceLevel/text())[1] with "MyNewValue002"')
WHERE
OrderXML.value('(/InternalOrderDetails/InternalOrderDetail/PriceLevel[text() = "FREE"])[1]', 'varchar(64)') = 'FREE'
Try this :
;with InternalOrderDetail as (SELECT id,
Tbl.Col.value('Item_Number[1]', 'varchar(40)') Item_Number,
Tbl.Col.value('CountOfNumber[1]', 'int') CountOfNumber,
case
when Tbl.Col.value('Item_Number[1]', 'varchar(40)') like '%COTRGUID'
and Tbl.Col.value('PriceLevel[1]', 'varchar(40)')='NONFREE'
then 'FREE'
else
Tbl.Col.value('PriceLevel[1]', 'varchar(40)')
end
PriceLevel
FROM (select id ,orderxml from demo)
as a cross apply orderxml.nodes('//InternalOrderDetail')
as
tbl(col) ) ,
cte_data as(SELECT
ID,
'<InternalOrderDetails>'+(SELECT ITEM_NUMBER,COUNTOFNUMBER,PRICELEVEL
FROM InternalOrderDetail
where ID=Results.ID
FOR XML AUTO, ELEMENTS)+'</InternalOrderDetails>' as XML_data
FROM InternalOrderDetail Results
GROUP BY ID)
update demo set orderxml=cast(xml_data as xml)
from demo
inner join cte_data on demo.id=cte_data.id
where cast(orderxml as varchar(2000))!=xml_data;
select * from demo;
SQL Fiddle
I have handled following cases :
1. As required both where clause in question.
2. It will update all <Item_Number> like '%COTRGUID' and <PriceLevel>= NONFREE in one
node, not just the first one.
It may require minor changes for your data and tables.
I have a XML column in database that may look like that ones:
<sql-connection-info name="myname" server="(local)\SQLEXPRESS" other-attribute="value" />
<oracle-connection-info name="othername" server="address" other-attribute="value" />
and so on. The names of nodes and attributes can be nearly anything. I need to iterate over the attribute/value pair on the first node. Every sample I have seen was for known node/attribute names.
When I tried to use
#xmlColumn.query("/#*")
I get this error
XQuery [query()]: Top-level attribute nodes are not supported.
Is this possible in TSQL? If yes how can I do this?
declare #xmlColumn xml = '<sql-connection-info name="myname" server="(local)\SQLEXPRESS" other-attribute="value" />'
select T.N.value('local-name(.)', 'varchar(max)') as Name,
T.N.value('.', 'varchar(max)') as Value
from #xmlColumn.nodes('//#*') as T(N)
Result:
Name Value
---------------- -------------------
name myname
server (local)\SQLEXPRESS
other-attribute value
You can use
#xmlColumn.query("/node()[1]")
to get the first node of each entry. node() matches any element node.
From your post I do not understand if you want to have e. g. the name attribute of the first node of your entry. Then you would use:
#xmlColumn.query("/node()[1]/#name")
I have something like the following XML in a column of a table:
<?xml version="1.0" encoding="utf-8"?>
<container>
<param name="paramA" value="valueA" />
<param name="paramB" value="valueB" />
...
</container>
I am trying to get the valueB part out of the XML via TSQL
So far I am getting the right node, but now I can not figure out how to get the attribute.
select xmlCol.query('/container/param[#name="paramB"]') from LogTable
I figure I could just add /#value to the end, but then SQL tells me attributes have to be part of a node. I can find a lot of examples for selecting the child nodes attributes, but nothing on the sibling atributes (if that is the right term).
Any help would be appreciated.
Try using the .value function instead of .query:
SELECT
xmlCol.value('(/container/param[#name="paramB"]/#value)[1]', 'varchar(50)')
FROM
LogTable
The XPath expression could potentially return a list of nodes, therefore you need to add a [1] to that potential list to tell SQL Server to use the first of those entries (and yes - that list is 1-based - not 0-based). As second parameter, you need to specify what type the value should be converted to - just guessing here.
Marc
Depending on the the actual structure of your xml, it may be useful to put a view over it to make it easier to consume using 'regular' sql eg
CREATE VIEW vwLogTable
AS
SELECT
c.p.value('#name', 'varchar(10)') name,
c.p.value('#value', 'varchar(10)') value
FROM
LogTable
CROSS APPLY x.nodes('/container/param') c(p)
GO
-- now you can get all values for paramB as...
SELECT value FROM vwLogTable WHERE name = 'paramB'