Problem: Limited Query Capabilities

< amazon {< ticker T > < eps P > < growth G >} > :-

< company {< ticker T > < growth G >} >@excite

& < news {< ticker T > < eps P > < name “Amazon.com” >} >@wsj

• Two source queries needed

• Just do it!

  • Join

• Problem: limited query capabilities

  • What if excite requires a ticker symbol?

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