Agnes has been using XQuery to design queries using path expressions. Her next project will involve multiple source documents and require more complicated criteria. She has heard that a FLWOR structure could be effective for such cases, and comes to you for assistance in developing a FLWOR structure query.
Agnes is confused by the rules about how many of each type of clause are required in a FLWOR structure. You tell her that in a FLWOR structure, there must be exactly only one _____ clause.?
A. ?where
B. ?for
C. ?let
D. ?return
Answer: D
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A) home range B) named range C) selected range D) delimited range
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Fill in the blank(s) with correct word
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Fill in the blank(s) with the appropriate word(s).