解析XML文檔SQL服務器內存儲的過程

Question

我有我想作爲參數 的XML看起來像這樣

<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> 

傳遞到存儲過程的xml文檔我需要存儲上述信息到2表，即：工資單和payheaddetails。 我想我必須循環訪問xml文檔。外環給我的員工ID和週期，然後我插入payslipdetails表的字段，然後進入內循環，我想插入payheaddetailswith同僱員和他的所有收入deatls像

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

然後我去外部循環，並獲得下一個員工ID並重復相同的事情

我怎麼能去像內部的孩子XML任何方式像openxml等.. ??

Answer 1

首先，這是不是有效的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> 

的ID=屬性必須由數據緊跟 - 最好在雙引號 - 這是有效的：

<EMPLOYEE ID="102"> 

下一頁：在<earnings>標記內部沒有容器的情況下，您有多個<title>..</title><amount>...</amount>標記對，這使得解析幾乎不可能（或者真的很麻煩）.....

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

如果有可能，儘量將其更改爲這樣的事情：

<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> 

這將是更容易處理！

如果有額外<earning>容器包圍<title>/<amount>對，那麼你可以很容易地寫這個XQuery語句和處理您的所有需求不亂，慢遊標產品總數：

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) 

，你會得到這樣的輸出：

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