Use variable to hold a result tree : variable « XSLT stylesheet « XML Tutorial

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2. XSLT stylesheet
3. variable

File: Data.xml
<?xml version="1.0" encoding="utf-8"?>
<data>    
        <TABLE border="1">
      <TR>
        <TD>AAA</TD>
        <TD>BBB</TD>
      </TR>
      <TR>
        <TD>aaa</TD>
        <TD>bbb</TD>
      </TR>
    </TABLE>
    <TABLE border="1">
      <TR>
        <TD>1111111</TD>
      </TR>
      <TR>
        <TD>22222222</TD>
      </TR>
      </TABLE>
</data>
File: Transform.xslt

<?xml version="1.0" encoding="utf-8"?>
<xsl:stylesheet
      version="1.0"
      xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
    <xsl:variable name="A1">
      <xsl:copy-of select="//TABLE[1]"/>
    </xsl:variable>
    <xsl:variable name="A2">
      <xsl:copy-of select="//TABLE[2]"/>
    </xsl:variable>
    <xsl:template match="/">
      <xsl:copy-of select="$A2"/>
      <xsl:copy-of select="$A1"/>
      <xsl:copy-of select="$A2"/>
    </xsl:template>
</xsl:stylesheet>

Output:

<?xml version="1.0" encoding="UTF-8"?><TABLE border="1">
      <TR>
        <TD>1111111</TD>
      </TR>
      <TR>
        <TD>22222222</TD>
      </TR>
      </TABLE><TABLE border="1">
      <TR>
        <TD>AAA</TD>
        <TD>BBB</TD>
      </TR>
      <TR>
        <TD>aaa</TD>
        <TD>bbb</TD>
      </TR>
    </TABLE><TABLE border="1">
      <TR>
        <TD>1111111</TD>
      </TR>
      <TR>
        <TD>22222222</TD>
      </TR>
      </TABLE>