10 Xslt Or Xml, Xsl Transformation Interview Questions In Addition To Answers

XSLT stands for XML mode canvass transformation as well as it equally XML applied scientific discipline used to transform i XML into around other XML or HTML format.  XML as well as XSLT interview questions are normally asked Java developers, who come about to work XML inward their projection as well as mentioned XSLT equally a key science inward their resume. Given XML’s popularity equally information transfer protocol, many systems inward optic as well as dorsum part infinite uses XML messages to transfer merchandise details, for example, Bookings, Settlement, as well as Confirmation organisation work it equally a information central protocol. Since each of this organisation performs around normalization, enrichment, as well as transform on incoming merchandise message, they work XSLT for that transformation. XSLT is rich, powerful as well as given its back upward inward Java as well as several other programming languages, it comes the natural selection of XML transformation. What y'all demand to is to write XSL files, equally good known equally XML mode canvass to specify your transformation dominion as well as and therefore XSLT engine volition transform each incoming XML documents equally per your XSL file. 

Though, XSLT is rich, it’s tin equally good hold upward rattling complex for Java programmers, who are used to procedural mode of coding, equally XSLT uses recursion a lot. So if y'all are a Java programmer, who bring used XSLT or going for a Job interview, where XSLT is a key skill, y'all improve hold upward create amongst around pop XSLT interview questions.

In this article, I am sharing my listing of XSLT questions, which is collected from internet, friends as well as colleagues as well as oftentimes asked equally part of XML Interview questions.

XSLT or XML transformation Interview Questions Answers

Here is my listing of XSLT questions, which is oftentimes asked to Java developers for projects, who uses XML extensively for transferring data, generating dynamic HTML as well as other XML transformation task. Though these XSLT interview query are non rattling difficult, but they tin hold upward tricky, given XSLT non beingness Java programmers principal forcefulness as well as lack of fourth dimension on learning XSLT. You tin work these questions for grooming or refreshing your noesis earlier going for whatever Java as well as XML based Job interview.

Question 1: What is XSL transformation or XSLT? How arrive at y'all perform XML transformation inward Java?

Answer : XSL transformation is the physical care for of transforming i XML file into around other XML, HTML or other type of file based upon selective rules as well as condition. XSL(XML Style Sheet language) is used to define those rules as well as status inward a .xls file, which is called style canvass document. Any XSLT engine tin read those pedagogy defined inward mode canvass document as well as transform source XML file into something expected. Core of XSLT is, transformation engine as well as style sheet  document. XSLT engine tin hold upward written inward Java or whatever other language. Java has XSLT back upward via javax.xml.transform parcel which specifies classes similar Templates, TransformFactory, an implementation of abstract mill blueprint pattern,  which tin hold upward used to read XSL file as well as transform XML files. See XSL transformation inward Java for to a greater extent than details

Question 2: How to take away a special chemical factor from XML?

Answer : Removing chemical factor from XML document via XSL transformation or XSLT is slowly if y'all are familiar amongst Identity template. You demand to write 2 templates i is Identity template, which copies every matter as well as other for matching amongst special chemical factor as well as doing zilch simply similar shown below, which volition as well as therefore lawsuit inward removal of a that special element. See an instance of removing XML elements using XSLT for details.

<xsl:template match="/root/product"/>

Question 3: How to take away a special attribute from XML?

Answer : Process of removing an attribute is similar to removing elements from XML document, equally discussed inward higher upward XSLT interview question. Along amongst Identity template, define around other template to tally amongst that special attribute equally shown below.

<xsl:template match="@product_synonym"/>

Question 4: How to rename a special chemical factor as well as attribute from XML using XSL?

Answer : Renaming attribute is equally good similar to removing or deleting attribute equally discussed inward XSLT query 1, but instead of non doing anything when an attribute matches, y'all demand to create an attribute as well as re-create value of electrical flow attribute into novel attribute. Identity template volition hold upward same as well as y'all demand to add together around other template for renaming attribute using XSL:

<xsl:template match="@id">

    <xsl:attribute name="emp_id">

         <xsl:value-of select="." />

    </xsl:attribute>

</xsl:template>

if y'all are using XSLT 2.0 than instead of split <xsL:value-of> chemical factor y'all tin work guide attribute straight amongst <xsL:attribute> equally shown below

<xsl:attribute name="emp_id" select=".">

Question 5: What is Identity template inward XSL,  why arrive at y'all work it?

Answer : Identity template inward XSL is used to create deep re-create of source XML file. It's template matches to every node() as well as attribute as well as re-create everything to create re-create of master xml file. many people define Identity template inward its ain file similar Identity.xsl but around people equally good preferred to proceed inward principal XSL file equally overstep template. Identity template has several uses inward XSL transformation, similar if y'all desire to take away whatever attribute or chemical factor y'all volition most probable re-create everything using Identity template as well as create around other template for non doing anything for those attribute or elements equally discussed inward XSLT interview questions 1 as well as 2.

<xsl:template match="@|node()">

   <xsl:copy>

       <xsl:apply-templates select="@|node()"/>

   </xsl:copy>

</xsl:template>

Above template is called Identity template. If y'all facial expression at Definition start template matches whatever attribute or

any node as well as and therefore copies electrical flow node including whatever attributes as well as nipper nodes.

Question half dozen : Why nosotros work select="@|node()" inward the <xsl:apply-templates/> chemical factor on Identity template? what volition come about if nosotros work <xsl:apply-templates/> without guide attribute?

Answer : This is an extension or follow upward questions of previous XSLT query nearly Identity template. nosotros work select="@|node() to re-create all nipper chemical factor as well as whatever attribute.if nosotros don't work that than <xsl:apply-templates/> volition default on select="node()" which volition re-create nipper nodes except attributes.

Question 7:  Can y'all explicate me this XSL template? What output this XSL template volition arrive at given a special xml file?

Answer : This sort of XSL transformation questions are to a greater extent than pop to approximate existent agreement of templates. they tin write template inward front end of y'all as well as may enquire y'all to explain, most elementary instance of this is writing Identity template equally discussed inward XSLT interview query 3. Alternatively they may hand y'all XSL as well as XML file as well as enquire y'all nearly around of transformation. This are tricky questions inward XSL as well as inward guild to respond these query y'all demand to hold upward familiar amongst XSL language, which is the primary argue people enquire it. On the other paw this is an fantabulous chance to present y'all how good y'all know nearly XSL working or how template executes, past times clearly explaining what a special template does.

Question 8 : How to recall value of an attribute for an chemical factor using XSLT?

Answer : This XSLT interview query is pretty mutual inward many XML interviews equally well. If candidate has worked inward XSLT as well as therefore this is a fairly slowly query equally it simply demand to come upward up amongst a XSLT template which tin re-create an attribute from an chemical factor similar below:

<xsl:template match="/employees/employee">

Value of attribute Id is :

<xsl:value-of select="@id"></xsl:value-of>

</xsl:template>

Question nine : How arrive at y'all generate dynamic HTML pages from relational database using XSLT?

Answer : This is i of the XSLT interview questions which checks practical noesis of candidate inward XSL. This is i of the most mutual application of XSLT I bring seen where information stored inward relational database is converted into XML as well as past times using XSLT transformed into HTML pages. Database stored procedure can hold upward used for start part as well as having all the logic of rendering HTML inward XSLT y'all don't demand to alter your query right away as well as and therefore if y'all demand to alter construction of HTML pages. If candidate successfully respond this XSLT interview query as well as therefore at that topographic point is rattling proficient adventure that he has a proficient agreement of how things plant amongst database, xml as well as XSLT.

Now let’s run across span of XSLT Interview query for practice, y'all demand to honour respond of these 2 questions past times yourself, as well as i time y'all honour the answer, y'all tin equally good post service them equally comment here. The reason, I am non giving respond of these query hither because, they are extremely basic as well as should come upward equally experience, i.e. y'all would improve write code for that. That volition enable y'all to sympathize other XSLT questions equally well.

How to transform i XML to around other XML document using XSLT transform?

How to transform an XML file into HTML using XSL transformation (XSLT)?

Further Learning
Java In-Depth: Become a Complete Java Engineer!
Master Java Web Services as well as REST API amongst Spring Boot
Java Web Fundamentals

That’s all on my listing of XSLT as well as XML transformation interview questions as well as answers. XSLT is i of the of import science to bring inward your resume, if y'all are using XML inward your project. Since XML is generally used equally shipping protocol as well as optic as well as dorsum part systems, those roles facial expression for candidates which are proficient inward XML, XSL as well as XSLT transformation. So if y'all are applying for whatever optic as well as dorsum part Java evolution piece of work inward Investment banks, brand certain to create XSLT well.

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