这是我的 XML 文件的结构 -
<A>
<Name t="Mr.">James Bond</Name>
<Name t="Mr.">Allen Bond</Name>
<Name t="Mr." p="X">James Bond</Name>
<Name t="Mr." p="X">James Bond</Name>
<Name t="Mr.">James Bond</Name>
<Name t="Mrs.">James Bond</Name>
<Name t="Mrs.">James Bond</Name>
<Name t="Mr.">James Bond</Name>
<Name t="Mrs." p="Y">James Bond</Name>
<Name t="Mrs." p="Y">James Bond</Name>
</A>
我期望的输出是 -
<A>
<N>Allen Bond Mr - 1</N>
<N>James Bond Mr - 3</N>
<N>James Bond Mr, X - 2</N>
<N>James Bond Mrs - 2</N>
<N>James Bond Mrs, Y - 2</N>
</A>
我能够获得不同的名称,但无法添加计数...
最佳答案
XQuery 3.0 解决方案 group by
:
<A>{
for $name in //Name
let $full :=
if(not($name/@p)) then concat($name, ' ', $name/@t)
else concat($name, ' ', $name/@t, ', ', $name/@p)
group by $full
return <N>{$full, '-', count($name)}</N>
}</A>
XQuery 1.0 解决方案 distinct-values($arg)
:
<A>{
let $names :=
for $name in //Name
return if(not($name/@p)) then concat($name, ' ', $name/@t)
else concat($name, ' ', $name/@t, ', ', $name/@p)
for $name in distinct-values($names)
return <N>{$name, '-', count($names[. eq $name])}</N>
}</A>
关于xml - XQuery - 分组和计数,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/14030255/