您将如何从此 xquery 中删除所有文字 [英] How would you remove all literals from this xquery
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问题描述
如何从员工.../员工和经理.../经理的返回中删除文字,以便我可以删除员工.../员工和经理.../经理.我希望结果在结果 xml 中显示时不包含员工和经理.
How can a remove the literals from the return in employee.../employee and manager.../manager so I can delete employee.../employee and manager.../manager. I want the result to display without the employee and manager in the resulting xml.
<results>
{
for $depen in doc("../company/dependent.xml")//dependent
where $depen/dependent_name=*
return
<row>
<dependent name="{$depen/dependent_name}"/>
{
for $emp in doc("../company/employee.xml")//employee[ssn = $depen/essn ]
return
<employee>
<emp fname="{$emp/fname}" lname="{$emp/lname}"/>
{
for $man in doc("../company/employee.xml")//employee[ssn = $emp/superssn ]
return
<mgr fname="{$man/fname}" lname="{$man/lname}"/>
}
</employee>
}
</row>
}
</results>
推荐答案
我想你想要
<results>
{
for $depen in doc("../company/dependent.xml")//dependent
where $depen/dependent_name=*
return
<row>
<dependent name="{$depen/dependent_name}"/>
{
for $emp in doc("../company/employee.xml")//employee[ssn = $depen/essn ]
return
(
<emp fname="{$emp/fname}" lname="{$emp/lname}"/>,
for $man in doc("../company/employee.xml")//employee[ssn = $emp/superssn ]
return
<mgr fname="{$man/fname}" lname="{$man/lname}"/>
)
}
</row>
}
</results>
就语法而言,如果没有上下文,我不确定 $depen/dependent_name=*
的比较是否有意义.
in terms of the syntax, I am not sure the comparison $depen/dependent_name=*
makes any sense without having a context.
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