Answer:
Explanation:
a)use order by clause for sorting
for $x in doc("books.xml")/bib/book order by xs:float($x/price) return $x/title (default sorted in ascending order)
or
for $x in doc("books.xml")/bib/book order by xs:float($b/price) descending return $b/title (sorted in descending order)
b)doc("books.xml")//book[author = 'Abiteboul']
c)for $x in distinct-values(doc("bib.xml")/bib/book/author)
return <res>
<name>{$x}</name>
<count>
{count (doc("bib.xml")//book[exists(indexof(author,$x))]) }
</count>
<res>
Answer:
b.font tag
is used to change the appearance of your text on your web page
That means that the production vause a loss in supply and demand
Answer
Procedural programming, Object-oriented programming
Explanation
Procedural programming is a type of computer programming language that specifies a series of well structured steps and procedures within its development period of time. It contains a systematic order of statements, functions and commands to complete a computational task or program. It is centered on creating procedures. While object oriented programming is a programming language that is centered on creating objects rather that actions and data rather than logic.. It has four principles which are inheritance, polymorphism, abstraction and Encapsulation
