Dynamic page queries with YQL in YahooPipes  This tutorial will
show you how to query multiple pages with YQL. For example query
the webpage of every news item in your RSS feed to gain extra
information.  My example is going to query the tek-9 RSS feed to
find out how many comments were made on each item.  1. Select
the fetch feed module and enter the feed of your choice.   2.
Select the “loop operator” and place the “string builder” into
it  3. In the first box type the following select * from html
where url=’  3. In the second box  4. In the third box ‘ and
xpath=’/html/body/div[5]/div[2]/div/h2′  Note (make sure the
Xpath matches the query you are looking for). Please refer back
to the earlier YQL tutorials if you get lost here  5. Assign
results to item.field (in my case, item.comments)  6. Add
another Loop module  7. Place the YQL module into the loop
module  8. In the body of the loop module type in the item
created. (in my case “item.comments”)  9. Assign “all” to
item.comments  10. This will run throu