Xml 使用给定的输出生成xquery

我想使用给定的输出生成xquery。 我的XML如下所示：

   <?xml version="1.0" encoding="UTF-8"?>

   <S_db>
    <student id="94811">
    <name>Rusty Nail</name>
    <quizzes>
        <quiz>16</quiz>
        <quiz>12</quiz>
    </quizzes>
    <projects>
        <project>44</project>
        <project>52</project>
    </projects>
    <exams>
        <exam>77</exam>
        <exam>68</exam>
        <exam>49</exam>
        </exams>
    </student>
    <student id="2562">
    <name>Guy Wire</name>
    <quizzes>
        <quiz>15</quiz>
        <quiz>23</quiz>
    </quizzes>
    <projects>
        <project>33</project>
        <project>47</project>
        </projects>
    <exams>
        <exam>78</exam>
        <exam>86</exam>
        <exam>88</exam>
    </exams>
    </student>
    <student id="137745">
    <name>Barb Wire</name>
    <quizzes>
        <quiz>20</quiz>
        <quiz>25</quiz>
    </quizzes>
    <projects>
        <project>48</project>
        <project>60</project>
        </projects>
    <exams>
        <exam>38</exam>
        <exam>48</exam>
        <exam>66</exam>
    </exams>
    </student>
    </S_db>

<?xml version="1.0" encoding="UTF‑8"?>
<projects>
<student>
<name>Barb Wire</name>
<total>108</total>
</student>
<student>
<name>Guy Wire</name>
<total>80</total>
</student>
<student>
<name>Rusty Nail</name>
<total>96</total>
</student>

    <student>
   {for $i in (1 to 3) return
   <total> { for $a in /S_db
   let $s := sum($a/student[$i]/projects/project)
   let $name := $a/student[$i]/name
   return ($s)}
   </total>
   }
  </student>

生锈的钉子
16
12
44
52
77
68
49
拉线
15
23
33
47
78
86
88
铁丝网
20
25
48
60
38
48
66

要生成的输出如下所示：

   <?xml version="1.0" encoding="UTF-8"?>

   <S_db>
    <student id="94811">
    <name>Rusty Nail</name>
    <quizzes>
        <quiz>16</quiz>
        <quiz>12</quiz>
    </quizzes>
    <projects>
        <project>44</project>
        <project>52</project>
    </projects>
    <exams>
        <exam>77</exam>
        <exam>68</exam>
        <exam>49</exam>
        </exams>
    </student>
    <student id="2562">
    <name>Guy Wire</name>
    <quizzes>
        <quiz>15</quiz>
        <quiz>23</quiz>
    </quizzes>
    <projects>
        <project>33</project>
        <project>47</project>
        </projects>
    <exams>
        <exam>78</exam>
        <exam>86</exam>
        <exam>88</exam>
    </exams>
    </student>
    <student id="137745">
    <name>Barb Wire</name>
    <quizzes>
        <quiz>20</quiz>
        <quiz>25</quiz>
    </quizzes>
    <projects>
        <project>48</project>
        <project>60</project>
        </projects>
    <exams>
        <exam>38</exam>
        <exam>48</exam>
        <exam>66</exam>
    </exams>
    </student>
    </S_db>

<?xml version="1.0" encoding="UTF‑8"?>
<projects>
<student>
<name>Barb Wire</name>
<total>108</total>
</student>
<student>
<name>Guy Wire</name>
<total>80</total>
</student>
<student>
<name>Rusty Nail</name>
<total>96</total>
</student>

    <student>
   {for $i in (1 to 3) return
   <total> { for $a in /S_db
   let $s := sum($a/student[$i]/projects/project)
   let $name := $a/student[$i]/name
   return ($s)}
   </total>
   }
  </student>

铁丝网
108
拉线
80
生锈的钉子
96

我尝试按如下方式生成Xquery：

   <?xml version="1.0" encoding="UTF-8"?>

   <S_db>
    <student id="94811">
    <name>Rusty Nail</name>
    <quizzes>
        <quiz>16</quiz>
        <quiz>12</quiz>
    </quizzes>
    <projects>
        <project>44</project>
        <project>52</project>
    </projects>
    <exams>
        <exam>77</exam>
        <exam>68</exam>
        <exam>49</exam>
        </exams>
    </student>
    <student id="2562">
    <name>Guy Wire</name>
    <quizzes>
        <quiz>15</quiz>
        <quiz>23</quiz>
    </quizzes>
    <projects>
        <project>33</project>
        <project>47</project>
        </projects>
    <exams>
        <exam>78</exam>
        <exam>86</exam>
        <exam>88</exam>
    </exams>
    </student>
    <student id="137745">
    <name>Barb Wire</name>
    <quizzes>
        <quiz>20</quiz>
        <quiz>25</quiz>
    </quizzes>
    <projects>
        <project>48</project>
        <project>60</project>
        </projects>
    <exams>
        <exam>38</exam>
        <exam>48</exam>
        <exam>66</exam>
    </exams>
    </student>
    </S_db>

<?xml version="1.0" encoding="UTF‑8"?>
<projects>
<student>
<name>Barb Wire</name>
<total>108</total>
</student>
<student>
<name>Guy Wire</name>
<total>80</total>
</student>
<student>
<name>Rusty Nail</name>
<total>96</total>
</student>

    <student>
   {for $i in (1 to 3) return
   <total> { for $a in /S_db
   let $s := sum($a/student[$i]/projects/project)
   let $name := $a/student[$i]/name
   return ($s)}
   </total>
   }
  </student>

{（1至3）报税表中的$i
{对于$a in/S_db
let$s:=sum（$a/student[$i]/projects/project）
让$name:=$a/student[$i]/name
返回（$s）}
}

我的当前输出：

<?xml version="1.0" encoding="UTF-8"?>
<student>
<total>96</total>
<total>80</total>
<total>108</total>
</student>

96
80
108

我不知道如何用相应的total标签来获取名称标签。

---

我已将特定学生的name元素存储在name变量中，这是一种可能的方法：

<projects>
{
    for $s in /S_db/student
    return 
    <student>
    {
        $s/name,
        <total>{sum($s/projects/project)}</total>
    }
    </student>
}
</projects>

<?xml version="1.0" encoding="UTF-8"?>
<projects>
   <student>
      <name>Rusty Nail</name>
      <total>96</total>
   </student>
   <student>
      <name>Guy Wire</name>
      <total>80</total>
   </student>
   <student>
      <name>Barb Wire</name>
      <total>108</total>
   </student>
</projects>

---

你能在这里发布当前输出吗？错误-路径表达式中意外的标记“{”尝试以下操作：

{for$i in（1到3）return{for$a in/Súdb let$name:=$a/student[$i]/name return（$name）}{for$i in（1到3）return{for$a in/Súdb let$S:=sum（$a/student[$i]/projects/project）let$name:=$a/student[$i]/name return（$s）}

@rishiIt生成的输出如下：首先是学生的所有姓名，然后是total元素，但我需要其他输出，如：first name，然后是相应的total。请尝试生成这样的输出。@ThirisanguERROR-应为“}”，找到“{@Thirisangu”