join or subselect: xml

Showing posts with label xml. Show all posts

Monday, March 26, 2012

Joins with XQuery

Hello,
I have a very simple data table:

CREATE TABLE [ALMPayloads]([ID] [int] NOT NULL,[OutputPayload] [xml] NOT NULL)

with the following content:

ID = 1
OutputPayload:

<ReportDocument>
<ALMSimulationResult>
<selectedModelAssets>
<modelAsset ID="8bc798ae-cc15-4807-8805-61ecfc8f3c01" description="Global Bond" internationalCode=" " minimumLimit="0" maximumLimit="1" annualManagementFee="0" annualPerformanceFee="0" initialCostUpFront="0.02" regularCostUpFront="0.015" withdrawingCommission="0" switchCostPercentage="0" switchCostAmount="0" color="#FF00FFD4" stochasticDuration="5">
<models>
<model ID="0e70216f-48ce-4f6c-b2d6-519a5cdfd246" type="corporate grade bond" description="Eurozone Corporate Bond Intermediate (D=5Years)" weight="1" />
</models>
</modelAsset>
<modelAsset ID="eab258b2-57ba-4d67-9f36-ee4e17c10dec" description="America Value Fund" internationalCode=" " minimumLimit="0" maximumLimit="1" annualManagementFee="0" annualPerformanceFee="0.005" initialCostUpFront="0.03" regularCostUpFront="0.03" withdrawingCommission="0" switchCostPercentage="0" switchCostAmount="0" color="#FF3B00FF" stochasticDuration="13.55">
<models>
<model ID="b0817f64-5090-48a3-b58c-aa8f6e5bbdc1" type="equity" description="US Value Style (Eur)" weight="0.9" />
<model ID="677e8aae-7b32-4dc3-88c5-e9302dddad8f" type="conventional bond" description="Euro Cash (TBill)" weight="0.1" />
</models>
</modelAsset>
<modelAsset ID="0e2e95bb-bec0-4dcb-bb13-2032f3ed0978" description="Europa Value Fund" internationalCode=" " minimumLimit="0" maximumLimit="1" annualManagementFee="0.001" annualPerformanceFee="0.001" initialCostUpFront="0.03" regularCostUpFront="0.03" withdrawingCommission="0" switchCostPercentage="0" switchCostAmount="0" color="#FF9D00FF" stochasticDuration="17.5">
<models>
<model ID="86fedd24-2a92-422c-b733-17c60105ff81" type="equity" description="Asia Value Style (Eur)" weight="0.1" />
<model ID="55425529-8adc-47d8-a36d-8cfd9da34880" type="conventional bond" description="Italian Long Term Gov Bond" weight="0.1" />
<model ID="fea29db9-cf0e-4802-bcbe-e2b8d367f0ca" type="cash" description="Euro Cash (Euribor 1m)" weight="0.1" />
<model ID="8e58d785-5fc5-4ede-8ec8-eb1af8e62541" type="equity" description="Eurozone Value Style" weight="0.7" />
</models>
</modelAsset>
</selectedModelAssets>
<savingModelAsset ID="0e2e95bb-bec0-4dcb-bb13-2032f3ed0978" />
<surplusModelAsset ID="0e2e95bb-bec0-4dcb-bb13-2032f3ed0978" />
<modelAssetTimeSeries>
<modelAsset ID="8bc798ae-cc15-4807-8805-61ecfc8f3c01">
<tValues t="0" value="0" annualYield="0" />
<tValues t="1" value="0" annualYield="0.027353" />
<tValues t="2" value="0" annualYield="0.027288" />
<tValues t="3" value="0" annualYield="0.027237" />
<tValues t="4" value="0" annualYield="0.027274" />
<tValues t="5" value="0" annualYield="0.027262" />
<tValues t="6" value="0" annualYield="0.02722" />
<tValues t="7" value="1453" annualYield="0.027258" />
<tValues t="8" value="1457" annualYield="0.027258" />
<tValues t="9" value="1460" annualYield="0.027219" />
<tValues t="10" value="1463" annualYield="0.027259" />
</modelAsset>
<modelAsset ID="eab258b2-57ba-4d67-9f36-ee4e17c10dec">
<tValues t="0" value="0" annualYield="0" />
<tValues t="1" value="0" annualYield="0.065466" />
<tValues t="2" value="0" annualYield="0.063841" />
<tValues t="3" value="0" annualYield="0.063707" />
<tValues t="4" value="0" annualYield="0.063692" />
<tValues t="5" value="0" annualYield="0.062438" />
<tValues t="6" value="0" annualYield="0.064081" />
<tValues t="7" value="0" annualYield="0.063476" />
<tValues t="8" value="0" annualYield="0.064294" />
<tValues t="9" value="0" annualYield="0.062034" />
<tValues t="10" value="0" annualYield="0.065144" />
</modelAsset>
<modelAsset ID="0e2e95bb-bec0-4dcb-bb13-2032f3ed0978">
<tValues t="0" value="830" annualYield="0" />
<tValues t="1" value="1641" annualYield="0.06504" />
<tValues t="2" value="2456" annualYield="0.063229" />
<tValues t="3" value="3278" annualYield="0.062939" />
<tValues t="4" value="4104" annualYield="0.062825" />
<tValues t="5" value="4935" annualYield="0.061233" />
<tValues t="6" value="5772" annualYield="0.063522" />
<tValues t="7" value="5155" annualYield="0.062448" />
<tValues t="8" value="5994" annualYield="0.063548" />
<tValues t="9" value="6837" annualYield="0.061053" />
<tValues t="10" value="7688" annualYield="0.06525" />
</modelAsset>
</modelAssetTimeSeries>
</ALMSimulationResult>
</ReportDocument>

When I run the following command from SQL server:

SELECT
N.ma.value('@.ID', 'uniqueidentifier') as ModelAssetID,
N.ma.value('@.description', 'nvarchar(255)') as ModelAssetDescription,
N.ma.value('@.minimumLimit', 'float') as ModelAssetMinLimit,
N.ma.value('@.maximumLimit', 'float') as ModelAssetMaxLimit,
N.ma.value('@.stochasticDuration', 'float') as ModelAssetDuration,
N.ma.value('@.color', 'char(9)') as Color,
N1.ma1.value('tValues[1]/@.value', 'float') as ActualAssetMix
FROM ALMPayloads A1 CROSS APPLY OutputPayload.nodes('/ReportDocument/ALMSimulationResult/selectedModelAssets/modelAsset') N(ma)
LEFT JOIN ALMPayloads A2 CROSS APPLY OutputPayload.nodes('/ReportDocument/ALMSimulationResult/modelAssetTimeSeries/modelAsset') N1(ma1)
ON N.ma.value('@.ID', 'uniqueidentifier') = N1.ma1.value('@.ID', 'uniqueidentifier')
WHERE A1.ID = 1000
ORDER BY ModelAssetDuration

I get the following result:

ModelAssetID ModelAssetDescription Min Max Dur. Color Value
8BC798AE-CC15-4807-8805-61ECFC8F3C01 Global Bond 0 1 5 #FF00FFD4 0
8BC798AE-CC15-4807-8805-61ECFC8F3C01 Global Bond 0 1 5 #FF00FFD4 0
EAB258B2-57BA-4D67-9F36-EE4E17C10DEC America Value Fund 0 1 13.55 #FF3B00FF 0
EAB258B2-57BA-4D67-9F36-EE4E17C10DEC America Value Fund 0 1 13.55 #FF3B00FF 0
0E2E95BB-BEC0-4DCB-BB13-2032F3ED0978 Europa Value Fund 0 1 17.5 #FF9D00FF 96803
0E2E95BB-BEC0-4DCB-BB13-2032F3ED0978 Europa Value Fund 0 1 17.5 #FF9D00FF 830
0E2E95BB-BEC0-4DCB-BB13-2032F3ED0978 Europa Value Fund 0 1 17.5 #FF9D00FF 830

Instead of

ModelAssetID ModelAssetDescription Min Max Dur. Color Value
8BC798AE-CC15-4807-8805-61ECFC8F3C01 Global Bond 0 1 5 #FF00FFD4 0
EAB258B2-57BA-4D67-9F36-EE4E17C10DEC America Value Fund 0 1 13.55 #FF3B00FF 0
0E2E95BB-BEC0-4DCB-BB13-2032F3ED0978 Europa Value Fund 0 1 17.5 #FF9D00FF 830

Why do I have so much duplicates and some random results (I mean the value where I get 96803) ?

Thanks,
Pierre

Pierre, I just tried running the following query. At first, I got no results. When I changed the AI.ID predicate to AI.ID = 1 then I got three rows back (your expected results).

Are you sure there is not other data in the table? I notice that you are doing a self join on the the table [ALMPayloads] but I don't see any predicate on the A2 table alias. I suspect that this could be the reason why you are seeing the additional rows in your results if in fact there are other rows in that table.|||Hi John,
try to add another record (the same xml content with 2 different IDs) and the result will be duplicated.

How can I make the join (on xml data) with the expected result ?

Thanks,
Pierre|||You need to add "AND A1.ID = A2.ID" to your join condition. If you don't need the LEFT JOIN semantics, you can do away with the self join and add another CROSS APPLY.

ALMPayloads A1
CROSS APPLY OutputPayload.nodes('/ReportDocument/ALMSimulationResult/selectedModelAssets/modelAsset') N(ma)CROSS APPLY OutputPayload.nodes('/ReportDocument/ALMSimulationResult/modelAssetTimeSeries/modelAsset') N1(ma1)

sql

Joins with XQuery

Hello,
I have a very simple data table:

CREATE TABLE [ALMPayloads]([ID] [int] NOT NULL,[OutputPayload] [xml] NOT NULL)

Why do I have so much duplicates and some random results (I mean the value where I get 96803) ?

Thanks,
Pierre

Pierre, I just tried running the following query. At first, I got no results. When I changed the AI.ID predicate to AI.ID = 1 then I got three rows back (your expected results).

How can I make the join (on xml data) with the expected result ?

Thanks,
Pierre|||You need to add "AND A1.ID = A2.ID" to your join condition. If you don't need the LEFT JOIN semantics, you can do away with the self join and add another CROSS APPLY.

Friday, March 9, 2012

Join XML fragment with real table

I was wondering how someone would go about joining an XML fragment with a SQL table. Say for example this is my XML fragment.

My table looks like this:

key SomeInfo

1 SomeInfo1

2 SomeInfo2

I want to be able to create a Stored procedure that takes my XML fragment as an xml type and then create a SQL select statement that looks like this in pseudo code.

Select myTable.key, myTable.SomeInfo, @.myXML.Description

From myTable and @.myXML

Where myTable.key = @.myXML.key

The result would then look like this

key SomeInfo Description

1 SomeInfo1 One

2 SomeInfo2 Two

Anyone have any ideas. I've got it where my XML and my table are joined by doing an @.myXML.exist(/foo/key[.=sql:column("myTable.key")] = 1 thing but I can't get the right Description value to show up in my row. I always get the first row.

Just to be complete. Here's my present stab at it.

Declare @.myXML xml

Set @.myXML = '<foo><key>1</key><description>One</description></foo>

<foo><key>2</key><description>Two</description></foo>'

Select myTable.key, myTable.SomeInfo, @.myTable.value('/foo/Description[1]','varchar(15)')

From myTable

Where @.myXML.exist('/foo/key[.=sql:column("myTable.key")]') = 1

I think you are looking for the XQuery "nodes()" function. It sounds like you want to reach into the column that is storing the XML, extract scalar values from that xml and join it with a relational table. If this is what you are trying to do, then the nodes() function should work for you.

Here is an example using the nodes() function on the xml data type.

http://msdn2.microsoft.com/en-us/ms188282.aspx

If you go this route, then your query would be something like:

SELECT myTable.key, myTable.SomeInfo, T(c).value('/description[1]', 'varchar(max)') as Description
FROM myTable, @.myXml.nodes('/foo') AS T(c)
WHERE myTable.key = T(c).value('/key[1]', 'int')

|||

Thanks for the reply,

I tried what you suggested and I actually don't get any results back at all. I first had to change the T(c).value to be T.c.value to get it to work and then when it ran it gave me back an empty result set.

|||

Sorry about that I pressed enter before putting in my final results.

Your suggestion worked very well. Here is the final working query:

Select myTable.key,myTable.SomeInfo, T.c.value('./description[1]','varchar(max)') As Description

from myTable,@.myXML.nodes('/foo') As T(c)

Where myTable.key = T.c.value('./key[1]','int')

JOIN two Datasets?

I would like to perform an inner join on two seperate datasets. One dataset
gets its data from SQL server, the other gets its data from a XML web
service.Can't do this. You might consider using a sub report. A sub report can be
put into the table object cells.
Bruce Loehle-Conger
MVP SQL Server Reporting Services
"Jeff Richardson" <BobcatRidge@.newsgroups.nospam> wrote in message
news:O63%23UQuxGHA.3464@.TK2MSFTNGP03.phx.gbl...
>I would like to perform an inner join on two seperate datasets. One
>dataset gets its data from SQL server, the other gets its data from a XML
>web service.
>|||Thanks.
I have not tried the sub-report route because I assumed that you would get
all rows from the parent dataset even if the sub-report contained no rows.
Is there a way to that the parent rows are only displayed when the
sub-report has rows?
Thanks
Jeff.
"Bruce L-C [MVP]" <bruce_lcNOSPAM@.hotmail.com> wrote in message
news:u1qBZauxGHA.3456@.TK2MSFTNGP03.phx.gbl...
> Can't do this. You might consider using a sub report. A sub report can be
> put into the table object cells.
>
> --
> Bruce Loehle-Conger
> MVP SQL Server Reporting Services
> "Jeff Richardson" <BobcatRidge@.newsgroups.nospam> wrote in message
> news:O63%23UQuxGHA.3464@.TK2MSFTNGP03.phx.gbl...
>>I would like to perform an inner join on two seperate datasets. One
>>dataset gets its data from SQL server, the other gets its data from a XML
>>web service.
>|||Hi Jeff,
Although you could not control the visibility of a textbox with the
Subreport, you could add another dataset to control the visibility.
The dataset should be the same as the the one you use in the sub report.
Hope this will be helpful!
Sincerely,
Wei Lu
Microsoft Online Community Support
==================================================
Get notification to my posts through email? Please refer to
http://msdn.microsoft.com/subscriptions/managednewsgroups/default.aspx#notif
ications.
Note: The MSDN Managed Newsgroup support offering is for non-urgent issues
where an initial response from the community or a Microsoft Support
Engineer within 1 business day is acceptable. Please note that each follow
up response may take approximately 2 business days as the support
professional working with you may need further investigation to reach the
most efficient resolution. The offering is not appropriate for situations
that require urgent, real-time or phone-based interactions or complex
project analysis and dump analysis issues. Issues of this nature are best
handled working with a dedicated Microsoft Support Engineer by contacting
Microsoft Customer Support Services (CSS) at
http://msdn.microsoft.com/subscriptions/support/default.aspx.
==================================================(This posting is provided "AS IS", with no warranties, and confers no
rights.)|||Hi ,
How is everything going? Please feel free to let me know if you need any
assistance.
Sincerely,
Wei Lu
Microsoft Online Community Support
==================================================
When responding to posts, please "Reply to Group" via your newsreader so
that others may learn and benefit from your issue.
==================================================This posting is provided "AS IS" with no warranties, and confers no rights.

Monday, March 26, 2012

Joins with XQuery

Joins with XQuery

Friday, March 9, 2012

Join XML fragment with real table

JOIN two Datasets?

join or subselect

Blog Archive

About Me