Problem with the help of oraext: query-database in the transformation (XSLT 2.0)

Hello!
I m facing a problem with the help of oraext: query-database.

In my transformation im try the following (Simplified):
<xsl:template match="*">
  <xsl:variable sqlQuery="select ....."/>
  <xsl:variable name="storeSec" select="oraext:query-database($sqlQuery,true(),true(),'jdbc/xref')/>               
    <xsl:choose>
     <xsl:when test="string-length($storeSec/ROWSET/ROW[1]/STORE_PART_SECTION) > 0">
          <xsl:value-of select="$storeSec/ROWSET/ROW[1]/STORE_PART_SECTION"/>
     </xsl:when>
       <xsl:otherwise>
            <xsl:value-of select"some other val"/>
       </xsl:otherwise>
    </xsl:choose>
</xsl:template>
{code}

This always results in +some+ +other+ +val+ !!
I´v checked the output from oraext:query-database by using getcontentAsString and if I instead test putting the expected output from oraext:queryDatabase in my variable it gives me A100 which is what i expected.

{code}
<xsl:template match="*">
  <xsl:variable sqlQuery=select ....."/>
  <xsl:variable name="storeSec">
    <ROWSET>
     <ROW num="1">
       <STORE_PART_SECTION>A100</STORE_PART_SECTION>
     </ROW>
     <ROW num="2">
       <STORE_PART_SECTION>XXm</STORE_PART_SECTION>
     </ROW>
    </ROWSET>
  </xsl:variable>               
    <xsl:choose>
     <xsl:when test="string-length($storeSec/ROWSET/ROW[1]/STORE_PART_SECTION) > 0">
          <xsl:value-of select="$storeSec/ROWSET/ROW[1]/STORE_PART_SECTION"/>
     </xsl:when>
       <xsl:otherwise>
            <xsl:value-of select"some other val"/>
       </xsl:otherwise>
    </xsl:choose>
</xsl:template>
How to get the correct value when you use oraext:query - database?
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