You could use xsl:number, which is designed to do exactly this kind of
thing, or if you want to avoid xsl:number  you could do

<xsl:for-each select="//TABLE">
  <xs:value-of select="1+count(preceding-sibling::TABLE)"/>
</xsl:for-each>

or

<xsl:for-each select="//DB">
<xsl:for-each select=".//TABLE">
  <xs:value-of select="position()"/>
</xsl:for-each>
</xsl:for-each>

or ...

David

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