We will use the "books.xml" document in the examples below (same XML file as in the previous chapter).
Look at the following path expression:
The expression above will select all the title elements under the book elements that are under the bookstore element that have a price element with a value that is higher than 30.
The following FLWOR expression will select exactly the same as the path expression above:
The result will be:
With FLWOR you can sort the result:
FLWOR is an acronym for "For, Let, Where, Order by, Return".
The for clause selects all book elements under the bookstore element into a variable called $x.
The where clause selects only book elements with a price element with a value greater than 30.
The order by clause defines the sort-order. Will be sort by the title element.
The return clause specifies what should be returned. Here it returns the title elements.
The result of the XQuery expression above will be: