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XML Publishing. Consider the following relational data:
Products:
pid
Name
Price
Description
323
gizmo
22.99
great
233
gizmoplus
99.99
morefeatures
312
gadget
59.99
goodvalue
Stores:
Sid
Phone
s282
Wiz
555-1234
s521
Econo-Wiz
555-6543
Sells:
Pid
Markup
sid
10%
25%
15%
A. Use and submit a text file (.txt) to write your information for the following. You want to export this data into an XML file. Write a Document Type Definition (DTD)describing this structure for the XML file.
a. there is one root element called products
b. the products element contains a sequence of product sub-elements, one for each product in the database
c. each product element contains one name, one price, and one description sub-element, and a sequence of store sub-elements, one for each store that sells that product
d. eachstore element contains one name, one phone, and one markup sub-element.
B. At the bottom of your .txt file, use an underscore line (_________) to separate the answer to this question from B. above. Assuming that you have an XML document with the structure given in A., write an XQuery expression that returns the names and prices of all products that are sold at least at one store with a markup of 25%.
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