Question

我有一个xml文档，我想将其作为参数传递给存储过程 xml看起来像这样

<root> 
    <EMPLOYEE ID= 100> 
     <PERIOD>AUG-2010</PERIOD>
        <earnings> 
               <title>BASIC</title>
        <amount>2000</amount>
        <title>HRA</title>
        <amount>1000</amount>
        <title>CONVEYANCE</title>
        <amount>500</amount>
        </earnings> 
    </EMPLOYEE> 
     <EMPLOYEE ID= 101> 
    <PERIOD>AUG-2010</PERIOD>
          <earnings> 
               <title>BASIC</title>
        <amount>2000</amount>
        <title>HRA</title>
        <amount>400</amount>
        <title>CONVEYANCE</title>
        <amount>500</amount>
        </earnings> 
    </EMPLOYEE> 

 <EMPLOYEE ID= 102> 
    <PERIOD>AUG-2010</PERIOD>
          <earnings> 
               <title>BASIC</title>
        <amount>2000</amount>
        <title>HRA</title>
        <amount>800</amount>
        <title>CONVEYANCE</title>
        <amount>5000</amount>
        </earnings> 
 </EMPLOYEE> 
</root>

我需要将上述信息存储到2个表中，即：payslipdetails和payheaddetails。我想我必须遍历xml doc。外部循环给了我员工ID和句点，然后我插入带有这些字段的payslipdetails表，然后进入内部循环，我想插入payheaddetails与相同的employeeid和他所有的收入deatls像

empid   title  amount
100     basic   2000
100     hra     1000
100     conveyance   500

然后我转到外部循环并获得下一个员工ID并重复相同的事情

我怎样才能像openxml等那样去内部子xml。??

Answer 1

首先，这是不有效的XML：

<EMPLOYEE ID= 102> 
    <PERIOD>AUG-2010</PERIOD>
          <earnings> 
               <title>BASIC</title>
        <amount>2000</amount>
        <title>HRA</title>
        <amount>800</amount>
        <title>CONVEYANCE</title>
        <amount>5000</amount>
        </earnings> 
 </EMPLOYEE>

ID=属性必须紧跟数据 - 最好是双引号 - 这是有效的：

<EMPLOYEE ID="102">

下一步：你的<title>..</title><amount>...</amount>标签内有多个<earnings>标签对但没有容器的事实使得解析旁边不可能（或者非常混乱）......

<earnings> 
   <title>BASIC</title>
   <amount>2000</amount>
   <title>HRA</title>
   <amount>800</amount>
   <title>CONVEYANCE</title>
   <amount>5000</amount>
</earnings>

如果可能，请尝试将其更改为：

<earnings> 
   <earning>
     <title>BASIC</title>
     <amount>2000</amount>
   </earning>
   <earning>
     <title>HRA</title>
     <amount>800</amount>
   </earning>
   <earning>
     <title>CONVEYANCE</title>
     <amount>5000</amount>
   </earning>
</earnings>

这将更容易来处理！

如果包含<earning>对的额外<title>/<amount>容器，那么您可以轻松编写此XQuery语句并处理所有需求而无需杂乱，缓慢的游标：

SELECT
    RootData.Employee.value('(@ID)[1]', 'int') AS 'EmployeeID',
    E.E2.value('(title)[1]', 'varchar(50)') AS 'Title',
    E.E2.value('(amount)[1]', 'decimal(18,4)') AS 'Amount'
from
    (your XML column).nodes('/root/EMPLOYEE') AS RootData(Employee)
CROSS APPLY
    RootData.Employee.nodes('earnings/earning') AS E(E2)

你会得到这样的输出：

EmployeeID  Title         Amount
  100       BASIC          2000.0000
  100       HRA            1000.0000
  100       CONVEYANCE      500.0000
  101       BASIC          2000.0000
  101       HRA             400.0000
  101       CONVEYANCE      500.0000
  102       BASIC          2000.0000
  102       HRA             800.0000
  102       CONVEYANCE     5000.0000

使用sql server存储过程中的游标解析xml doc

1 个答案: