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Thanks for your help in my previous post! Given the below xml,how can I get the the number of unique warehouse codes? Do I need to use <xsl:key>? <inventory> <item> <warehousecode>BA</warehousecode> <item>bolt</item> <quantity>34</quantity> </item> <item> <warehousecode>BA</warehousecode> <item>nail</item> <quantity>50</quantity> </item> <item> <warehousecode>AC</warehousecode> <item>tack</item> <quantity>5</quantity> </item> <item> <warehousecode>BA</warehousecode> <item>hammer</item> <quantity>10</quantity> </item> <item> <warehousecode>AD</warehousecode> <item>screwdriver</item> <quantity>60</quantity> </item> <item> <warehousecode>AB</warehousecode> <item>wrench</item> <quantity>13</quantity> </item> </inventory> Desired output: Number of unique warehouse codes: 4 Thanks for helping an xsl newbie!! RJ _________________________________________________________________ Join the world?s largest e-mail service with MSN Hotmail. http://www.hotmail.com XSL-List info and archive: http://www.mulberrytech.com/xsl/xsl-list
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