I'd like to create several xsl:variable that may or may not be null then join them:
<xsl:variable name="creatorType" select="replace(lib:merge(subfields/subfield[matches(#code,'[e]')],' '),'author|[.$]','')" />
<xsl:variable name="creatorAttribution" select="replace(lib:merge(subfields/subfield[matches(#code,'[j]')],' '),'[,-.]$','')" />
<xsl:variable name="creatorNameFullForm" select="replace(lib:merge(subfields/subfield[matches(#code,'[q]')],' '),'[,-()]$','')" />
<xsl:variable name="creatorAffiliation" select="replace(lib:merge(subfields/subfield[matches(#code,'[u]')],' '),'[,-.]$','')" />
string-join((xsl:sequence), 'delimiter') seems like a good fit but also joins variables with empty values.
<xsl:variable name="creatorDescriptors" select ="string-join(($creatorDates, $creatorType, $creatorAttribution, $creatorAffiliation),', ')"/>
How would you have it only string-join non-null xsl:variables?
I'm currently getting something like this:
Mozart, Wolfgang Amadeus (1756–1791, Composer, , )
Try this expression instead (replacing the variable names with your own variable names), so that only the non-empty nodes are selected in the sequence
<xsl:value-of select="string-join(($a, $b, $c, $d)[. != ''],', ')"/>
Related
Description
Hello, I have a problem with extracting attribute names and values from XMLType value in Oracle.
Basically, I have a table, let's say TableA, which has a XMLType column, let's call it TableA_config. Values in TableA_config have structure like this:
<TableAConfig someAttribute1="value1" someAttribute2="value2" someAttribute3="value3" />. The number of attributes and their names may vary and are not known beforehand.
What I need to do is (for each row) create new XMLElement called TableAConfigList, which contains XMLElements called TableAConfig and each of those has two attributes: name and value. Now, number of TableAConfig nodes must be equal to number of attributes in TableA_config column, and each holds name of corresponding attribute in name attribute and its value in value attribute.
Example
From:
<TableAConfig someAttribute1="value1" someAttribute2="value2" someAttribute3="value3" />
I should get:
<TableAConfigList>
<TableAConfig name="someAttribute1" value="value1"/>
<TableAConfig name="someAttribute2" value="value2"/>
<TableAConfig name="someAttribute3" value="value3"/>
</TableAConfigList>
What I tried
I came up with idea to create a XMLTable from TableA_config column value and in it create two columns, which I can later select. It looks like this (it is a fragment of a bigger query):
SELECT XMLElement("TableAConfigList",
(SELECT
XMLAgg(
XMLElement("TableAConfig",
XMLAttributes(
tmp."attr_name" as "name",
tmp."attr_text" as "value"
)
)
) from XMLTable('/TableAConfig/#*'
passing TableA.TableA_config
columns
"attr_name" varchar(30) path 'name()',
"attr_text" varchar(30) path 'text()'
) tmp
)
) from dual
But now i get:
<TableAConfigList>
<TableAConfig name="someAttribute1"></TableAConfig>
<TableAConfig name="someAttribute2"></TableAConfig>
<TableAConfig name="someAttribute3"></TableAConfig>
</TableAConfigList>
There is no value. However, if I remove name from XMLAttributes it shows up. From:
SELECT XMLElement("TableAConfigList",
(SELECT
XMLAgg(
XMLElement("TableAConfig",
XMLAttributes(
tmp."attr_text" as "value"
)
)
) from XMLTable('/TableAConfig/#*'
passing TableA.TableA_config
columns
"attr_name" varchar(30) path 'name()',
"attr_text" varchar(30) path 'text()'
) tmp
)
) from dual
I get:
<TableAConfigList>
<TableAConfig value="value1"></TableAConfig>
<TableAConfig value="value2"></TableAConfig>
<TableAConfig value="value3"></TableAConfig>
</TableAConfigList>
I thought that maybe, for some reason, there can only be one attribute created this way, but if I add a new one by hardcoding it, it shows up in result, like this:
SELECT XMLElement("TableAConfigList",
(SELECT
XMLAgg(
XMLElement("TableAConfig",
XMLAttributes(
tmp."attr_text" as "value",
'testValue' as "testAttribute"
)
)
) from XMLTable('/TableAConfig/#*'
passing TableA.TableA_config
columns
"attr_name" varchar(30) path 'name()',
"attr_text" varchar(30) path 'text()'
) tmp
)
) from dual
Result:
<TableAConfigList>
<TableAConfig value="value1" testAttribute="testValue"></TableAConfig>
<TableAConfig value="value2" testAttribute="testValue"></TableAConfig>
<TableAConfig value="value3" testAttribute="testValue"></TableAConfig>
</TableAConfigList>
Putting in XMLAttributes both columns and hardcoded one gives me name and testAttribute, but no value.
Could someone tell me is it because I miss something terribly obvious, is it a bug or am I doing it completely wrong. I am pretty new to Oracle and PL/SQL and could really appreciate your help. Thanks!
You were almost there with your first attempt. While evaluating the XPath, when you are inside the attribute list with /TableAConfig/#*, you don't need text() to get the value of the attribute inside it. You are already at the attribute level so using just a "dot" . for current node would be sufficient.
So try something like this -
SELECT XMLElement("TableAConfigList",
(SELECT
XMLAgg(
XMLElement("TableAConfig",
XMLAttributes(
tmp."attr_name" as "name",
tmp."attr_text" as "value"
)
)
) from XMLTable('/TableAConfig/#*'
passing TableA.TableA_config
columns
"attr_name" varchar(30) path 'name()',
"attr_text" varchar(30) path '.'
) tmp
)
) from dual
The only difference from your first attempt is the xpath of the value attribute.
You can use XMLTRANSFORM too:
select xmltransform(
xmltype('<TableAConfig someAttribute1="value1" someAttribute2="value2" someAttribute3="value3" />'),
xmltype('<?xml version="1.0" encoding="UTF-8"?>
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:template match="/">
<xsl:for-each select="TableAConfig">
<TableAConfigList>
<xsl:for-each select="#*">
<xsl:element name="TableAConfig" >
<xsl:attribute name="name">
<xsl:value-of select="name()"/>
</xsl:attribute>
<xsl:attribute name="value">
<xsl:value-of select="."/>
</xsl:attribute>
</xsl:element>
</xsl:for-each>
</TableAConfigList>
</xsl:for-each>
</xsl:template>
</xsl:stylesheet>'))
from dual
I need to produce a text file in the output. I have to first check if a perosn has aby of the following node PreTaxAmt,MatchAmt,RothAmt, then produce a single line in output with required values and then I have to check if the perosn has LoanAmt node, if they have then I have to create another entry for that person. I was able to code till this point but now I am having a requiremnet where if the same person is repated more than once for example below laurel Alex , I need to produce just one entry for single participant id and the PreTaxAmt,MatchAmt,RothAmt amount should be summed up in the first entry in the output and in the in the loan entry row the LoanAmt should be summed up.
Here is my xml.
<Report_Data >
<Report_Entry>
<Participant_ID>03300</Participant_ID>
<Workers>
<FULL_PART_Time_Indicator>1</FULL_PART_Time_Indicator>
<Last_Name>Mary</Last_Name>
<First_Name>Mehul</First_Name>
</Workers>
<End_Date_from_Pay_Period>2016-01-03-08:00</End_Date_from_Pay_Period>
<PreTaxAmt>100.8</PreTaxAmt>
<MatchAmt>100.8</MatchAmt>
<RothAmt>0</RothAmt>
<LoanAmt>0</LoanAmt>
</Report_Entry>
<Report_Entry>
<Participant_ID>10600</Participant_ID>
<Workers>
<FULL_PART_Time_Indicator>1</FULL_PART_Time_Indicator>
<Last_Name>Laurel</Last_Name>
<First_Name>Alex</First_Name>
</Workers>
<End_Date_from_Pay_Period>2016-01-03-08:00</End_Date_from_Pay_Period>
<PreTaxAmt>61.48</PreTaxAmt>
<MatchAmt>61.47</MatchAmt>
<RothAmt>0</RothAmt>
<LoanAmt>0</LoanAmt>
</Report_Entry>
<Report_Entry>
<Participant_ID>10600</Participant_ID>
<Workers>
<FULL_PART_Time_Indicator>1</FULL_PART_Time_Indicator>
<Last_Name>Laurel</Last_Name>
<First_Name>Alex</First_Name>
<Middle_Name>S</Middle_Name>
</Workers>
<End_Date_from_Pay_Period>2016-01-03-08:00</End_Date_from_Pay_Period>
<PreTaxAmt>0</PreTaxAmt>
<MatchAmt>0</MatchAmt>
<RothAmt>0</RothAmt>
<LoanAmt>0</LoanAmt>
</Report_Entry>
<Report_Entry>
<Participant_ID>13100</Participant_ID>
<Workers>
<FULL_PART_Time_Indicator>1</FULL_PART_Time_Indicator>
<Last_Name>Smita</Last_Name>
<First_Name>Paul</First_Name>
</Workers>
<End_Date_from_Pay_Period>2016-01-03-08:00</End_Date_from_Pay_Period>
<PreTaxAmt>0</PreTaxAmt>
<MatchAmt>0</MatchAmt>
<RothAmt>0</RothAmt>
<LoanAmt>0</LoanAmt>
</Report_Entry>
Here is my xslt :
<xsl:template match="/">
<xsl:for-each select="Report_Data/Report_Entry">
<xsl:if test="(PreTaxAmt) or(MatchAmt) or (RothAmt) ">
<xsl:call-template name="DataRecords"/>
</xsl:if>
</xsl:for-each>
<xsl:for-each select="Report_Data/Report_Entry">
<xsl:if test="LoanAmt">
<xsl:call-template name="LoanDataRecord"/>
</xsl:if>
</xsl:for-each>
</xsl:template>
<xsl:template name="DataRecords">
<xsl:for-each-group select="." group-by="wd:Participant_ID">
<xsl:variable name="ParticpantLoan" select="current-grouping-key()"/>
!-- Transaction Code -->
<xsl:value-of select="'Contribution'"/>
<!-- Participant Number -->
<xsl:value-of select="Participant_ID,$filler),1,9"/>
<!-- FT/PT Indicator -->
<xsl:value-of select="substring(concat(Workers/FULL_PART_Time_Indicator,$filler),1,1)"/>
<!-- Contribution Amount1 -->
<xsl:value-of select="(sum(current-group()/PreTaxAmt))"/>
<!-- Contribution Amount2 -->
<xsl:value-of select="(sum(current-group()/MatchAmt))"/>
<!-- Contribution Amount3 -->
<xsl:value-of select="(sum(current-group()/RothAmt))"/>
<xsl:value-of select="$linefeed"/>
</xsl:for-each-group>
</xsl:template>
<xsl:template name="LoanDataRecord">
<xsl:for-each-group select="." group-by="Participant_ID">
<xsl:variable name="ParticpantLoan" select="current-grouping-key()"/>
<!-- Transaction Code -->
<xsl:value-of select="substring(concat('LoanData',$filler),1,3)"/>
<!-- Participant Number -->
<xsl:value-of select="substring(concat(Participant_ID,$filler),1,9)"/>
<!-- Loan Amt -->
<xsl:value-of select="(sum(current-group()/LoanAmt))"/>
<xsl:value-of select="$linefeed"/>
</xsl:for-each-group>
</xsl:template>
The output should have six lines.
Also, how can I calculate the total count of the records in my output file. Earlier I was using below code but now since there would be duplicate SSN how should I modify my existing code for counting ..
0 ] or Report_Data/Report_Entry/MatchAmt[number(.) > 0 ] or Report_Data/Report_Entry/RothAmt[number(.) > 0 ])+
count(Report_Data/Report_Entry/LoanAmt[number(.) > 0 ])
I want to retrieve element value from XML data field. Please check below code snippet for more detail:
SQL Script:
CREATE TABLE #Temp1 (ConfigXSLT XML);
INSERT INTO #Temp1 VALUES('<xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform" version="1.0">
<xsl:output method="xml" version="1.0" encoding="utf-8" indent="yes" />
<xsl:variable name="transport">
<transport protocol="FILE" direction="get" filename="file1*.csv" />
</xsl:variable>
<xsl:template match="#* | node()">
<xsl:copy>
<xsl:apply-templates select="#* | node()" />
</xsl:copy>
</xsl:template>
</xsl:stylesheet>')
-- I want only filename element value 'file1*.csv' in select statement
-- I have tried with below query but it not works
SELECT ConfigXSLT.value('declare namespace PD="http://www.w3.org/1999/XSL/Transform"; (//PD:variable/PD:transport/PD:filename)[1]','VARCHAR(MAX)')
FROM #Temp1
DROP TABLE #Temp1
You went overboard with using PD namespace (why PD btw?), the "transport" telement is without a namespace. Also, to select attribute you use # sign before the attributes name :)
Try this:
SELECT ConfigXSLT.value('declare namespace PD="http://www.w3.org/1999/XSL/Transform"; (//PD:variable/transport/#filename)[1]','VARCHAR(MAX)')
FROM #Temp1
Result:
file1*.csv
select #xml.value('(/stylesheet/variable/transport/#filename)[1]', 'nvarchar(max)')
Maybe something like that?
I have a question regarding xslt:
basically i have filtered rows:
<xsl:variable name="filteredRows" select="TestRows[(contains(#*[name()='FieldName'],#Title))]" />
And now i want to do for each on them but -1 so if there are 3 rows i want to execute for each only twice ... how to do that?
<xsl:for-each select ="$filteredRows - 1">
<xsl:text> label = </xsl:text>EMPTY
<br />
</xsl:for-each>
Thanks for help ..
Not tested (you didn't provide any sample), but <xsl:for-each select ="$filteredRow[position() < last()]"> could work.
my xml looks something like this:
<units>
<unit>
<unitnum></unitnum>
<Year></Year>
<Qty></Qty>
</unit>
</units>
I create a key to capture all the possible years. Like this:
<xsl:key name="yr" match="//Year/text()" use="." />
Then I for-each loop through the keys to get unique years. My ultimate goal is to sum the quantites like this:
<xsl:for-each select="//Year/text()[generate-id()=generate-id(key('yr',.)[1])]">
<li>
<xsl:variable name="varjobyear" select="."/>
<xsl:value-of select="$varjobyear"/> - sum -
<xsl:value-of select="sum(//unit[Year=$varjobyear]/Qty)"/>
</li>
</xsl:for-each>
For some reason my output looks like this:
2010 - sum - 0
2011 - sum - 0
2012 - sum - 0
But what I want is for those 0's to be the actual sum of the quantities for each year.
My best guess is that there is something wrong with the predicate [Year=$varjobyear], but I can't figure out what it is. I have also tried [Year=string($varjobyear)] and also [Year=number($varjobyear)].
What am I doing wrong? Thanks!
You want something like this:
<xsl:stylesheet version="1.0" xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
<xsl:output omit-xml-declaration="yes" indent="yes"/>
<xsl:strip-space elements="*"/>
<xsl:key name="kYearByVal" match="Year" use="."/>
<xsl:template match="Year[generate-id()=generate-id(key('kYearByVal',.)[1])]">
<li>
<xsl:value-of select="concat(., ' - sum - ', sum(key('kYearByVal',.)/../Qty))"/>
</li>
</xsl:template>
<xsl:template match="text()"/>
</xsl:stylesheet>
When this transformation is applied on the following XML document:
<units>
<unit>
<unitnum>12</unitnum>
<Year>1922</Year>
<Qty>3</Qty>
</unit>
<unit>
<unitnum>13</unitnum>
<Year>1922</Year>
<Qty>8</Qty>
</unit>
<unit>
<unitnum>14</unitnum>
<Year>1999</Year>
<Qty>5</Qty>
</unit>
<unit>
<unitnum>15</unitnum>
<Year>1999</Year>
<Qty>7</Qty>
</unit>
<unit>
<unitnum>16</unitnum>
<Year>2003</Year>
<Qty>3</Qty>
</unit>
</units>
the wanted, correct result is produced:
<li>1922 - sum - 11</li>
<li>1999 - sum - 12</li>
<li>2003 - sum - 3</li>