使用xmltable和XMLNAMESPACES抽取數據

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我正在嘗試使用Oracle SQL從下面的XML中提取值，並將其作爲XMLType存儲在xml_table中。使用xmltable和XMLNAMESPACES抽取數據

select x.* 
from xml_table t 
, xmltable(XMLNAMESPACES (
    'http://schemas.xmlsoap.org/soap/envelope/' AS "env", 
    'urn:com.workday/bsvc' as "wd" 
), 'for $i in //wd:Get_Worker_Costing_Allocations_Response return $i' 
--,'env:Envelope/env:Body/wd:Get_Worker_Costing_Allocations_Response/wd:Response_Data/wd:Worker_Costing_Allocations_Data' 
    passing t.raw_xml 
    columns Employee_ID number  path 'wd:Response_Data/wd:Worker_Costing_Allocations_Data/wd:Worker_Reference/wd:ID[2]' 
      ,Position_ID  varchar2(100) path 'wd:Response_Data/wd:Worker_Costing_Allocations_Data/wd:Position_Reference/wd:ID[2]' 
      --,start_Date  date path 'wd:Response_Data/wd:Worker_Costing_Allocations_Data/wd:Worker_Costing_Allocation_Interval_Data/wd:Start_Date' 
    ) x

當我試圖讓該基金的ID和其他細節，例如Cost_Center_Reference_ID無法從Worker_Costing_Allocation_Interval_Data得到。最終我必須遍歷所有Worker_Costing_Allocation_Interval_Data節點。

select x.* 
    from xml_table t 
    , xmltable(XMLNAMESPACES (
     'http://schemas.xmlsoap.org/soap/envelope/' AS "env", 
     'urn:com.workday/bsvc' as "wd" 
    ), 'for $i in //wd:Worker_Costing_Allocation_Detail_Data return $i' 
    --,'env:Envelope/env:Body/wd:Get_Worker_Costing_Allocations_Response/wd:Response_Data/wd:Worker_Costing_Allocations_Data' 
     passing t.raw_xml 
     columns order_1  varchar2(20) path 'wd:Order' 
       ,fund_id  varchar2(20) path 'wd:Costing_Override_Worktag_Reference/wd:ID[@Fund_ID]' 
     ) x

預期輸出：

employee_id Position_Id Start_Date End_Date Order Fund_ID Project_ID Program_ID Cost_Center_Reference_ID Custom_Organization_Reference_ID Distribution_Percent 
11111 P11111 7/1/2018 6/30/2050 a FD89 PJ122201 PG11130 CC12340  0.4 
11111 P11111 7/1/2018 6/30/2050 b FD89 PJ122201 PG11130 CC1234  0.6 
11111 P11111 7/1/2017 6/30/2018 a FD30 PJ000001 PG00003 CC0565 UD000004 1 
11111 P11111 1/1/2017 6/30/2017 a FD30 PJ000001 PG00003 CC0565 UD000004 1

下面是原始的XML插入xml_table：

<?xml version='1.0' encoding='UTF-8'?> 
<env:Envelope xmlns:env="http://schemas.xmlsoap.org/soap/envelope/"> 
    <env:Body> 
     <wd:Get_Worker_Costing_Allocations_Response xmlns:wd="urn:com.workday/bsvc" wd:version="v15"> 
      <wd:Request_Criteria> 
       <wd:Costing_Override_Criteria> 
        <wd:Worker_Reference wd:Descriptor="First, Last"> 
         <wd:ID wd:type="WID">WID1234</wd:ID> 
         <wd:ID wd:type="Employee_ID">11111</wd:ID> 
        </wd:Worker_Reference> 
       </wd:Costing_Override_Criteria> 
      </wd:Request_Criteria> 
      <wd:Response_Group> 
       <wd:Exclude_Allocation_Detail_Data>0</wd:Exclude_Allocation_Detail_Data> 
      </wd:Response_Group> 
      <wd:Response_Results> 
       <wd:Total_Results>1</wd:Total_Results> 
       <wd:Total_Pages>1</wd:Total_Pages> 
       <wd:Page_Results>1</wd:Page_Results> 
       <wd:Page>1</wd:Page> 
      </wd:Response_Results> 
      <wd:Response_Data> 
       <wd:Worker_Costing_Allocations_Data> 
        <wd:Worker_Reference wd:Descriptor="First, Last"> 
         <wd:ID wd:type="WID">WID1234</wd:ID> 
         <wd:ID wd:type="Employee_ID">11111</wd:ID> 
        </wd:Worker_Reference> 
        <wd:Position_Reference wd:Descriptor="P11111 Student - First, Last."> 
         <wd:ID wd:type="WID">WID2345</wd:ID> 
         <wd:ID wd:type="Position_ID">P11111</wd:ID> 
        </wd:Position_Reference> 
        <wd:Worker_Costing_Allocation_Interval_Data> 
         <wd:Costing_Override_ID>COSTING_OVERRIDE-X-ZZZZ</wd:Costing_Override_ID> 
         <wd:Start_Date>2018-07-01-07:00</wd:Start_Date> 
         <wd:End_Date>2050-06-30-07:00</wd:End_Date> 
         <wd:Worker_Costing_Allocation_Detail_Data> 
          <wd:Order>a</wd:Order> 
          <wd:Costing_Override_Worktag_Reference wd:Descriptor="FD89 XXXXX YYYYY"> 
           <wd:ID wd:type="WID">WIDXXXXX</wd:ID> 
           <wd:ID wd:type="Fund_ID">FD89</wd:ID> 
          </wd:Costing_Override_Worktag_Reference> 
          <wd:Costing_Override_Worktag_Reference wd:Descriptor="PJ122201 XXXXX YYYYY"> 
           <wd:ID wd:type="WID">d18edc6167911037c23bcdd377765bf3</wd:ID> 
           <wd:ID wd:type="Project_ID">PJ122201</wd:ID> 
          </wd:Costing_Override_Worktag_Reference> 
          <wd:Costing_Override_Worktag_Reference wd:Descriptor="PG11130 XXXXX YYYYY"> 
           <wd:ID wd:type="WID">d18edc61679110372db25f84888138fc</wd:ID> 
           <wd:ID wd:type="Program_ID">PG11130</wd:ID> 
          </wd:Costing_Override_Worktag_Reference> 
          <wd:Costing_Override_Worktag_Reference wd:Descriptor="CC12340 XXXXX YYYYY"> 
           <wd:ID wd:type="WID">d18edc61679110376fe5ad0c91c3805f</wd:ID> 
           <wd:ID wd:type="Organization_Reference_ID">CC12340</wd:ID> 
           <wd:ID wd:type="Cost_Center_Reference_ID">CC12340</wd:ID> 
          </wd:Costing_Override_Worktag_Reference> 
          <wd:Distribution_Percent>0.4</wd:Distribution_Percent> 
         </wd:Worker_Costing_Allocation_Detail_Data> 
         <wd:Worker_Costing_Allocation_Detail_Data> 
          <wd:Order>b</wd:Order> 
          <wd:Costing_Override_Worktag_Reference wd:Descriptor="CC1234 XXXXX YYYYY"> 
           <wd:ID wd:type="WID">WIDXXXXX</wd:ID> 
           <wd:ID wd:type="Organization_Reference_ID">CC1234</wd:ID> 
           <wd:ID wd:type="Cost_Center_Reference_ID">CC1234</wd:ID> 
          </wd:Costing_Override_Worktag_Reference> 
          <wd:Costing_Override_Worktag_Reference wd:Descriptor="FD89 XXXXX YYYYY"> 
           <wd:ID wd:type="WID">WIDXXXXX</wd:ID> 
           <wd:ID wd:type="Fund_ID">FD89</wd:ID> 
          </wd:Costing_Override_Worktag_Reference> 
          <wd:Costing_Override_Worktag_Reference wd:Descriptor="PJ122201 XXXXX YYYYY"> 
           <wd:ID wd:type="WID">WIDXXXXX</wd:ID> 
           <wd:ID wd:type="Project_ID">PJ122201</wd:ID> 
          </wd:Costing_Override_Worktag_Reference> 
          <wd:Costing_Override_Worktag_Reference wd:Descriptor="PG11130 XXXXX YYYYY"> 
           <wd:ID wd:type="WID">WIDXXXXX</wd:ID> 
           <wd:ID wd:type="Program_ID">PG11130</wd:ID> 
          </wd:Costing_Override_Worktag_Reference> 
          <wd:Distribution_Percent>0.6</wd:Distribution_Percent> 
         </wd:Worker_Costing_Allocation_Detail_Data> 
        </wd:Worker_Costing_Allocation_Interval_Data> 
        <wd:Worker_Costing_Allocation_Interval_Data> 
         <wd:Costing_Override_ID>COSTING_OVERRIDE-X-YYYY</wd:Costing_Override_ID> 
         <wd:Start_Date>2017-07-01-07:00</wd:Start_Date> 
         <wd:End_Date>2018-06-30-07:00</wd:End_Date> 
         <wd:Worker_Costing_Allocation_Detail_Data> 
          <wd:Order>a</wd:Order> 
          <wd:Costing_Override_Worktag_Reference wd:Descriptor="FD30 XXXXX YYYYY"> 
           <wd:ID wd:type="WID">WIDXXXXX</wd:ID> 
           <wd:ID wd:type="Fund_ID">FD30</wd:ID> 
          </wd:Costing_Override_Worktag_Reference> 
          <wd:Costing_Override_Worktag_Reference wd:Descriptor="CC0565 XXXXX YYYYY"> 
           <wd:ID wd:type="WID">WIDXXXXX</wd:ID> 
           <wd:ID wd:type="Organization_Reference_ID">CC0565</wd:ID> 
           <wd:ID wd:type="Cost_Center_Reference_ID">CC0565</wd:ID> 
          </wd:Costing_Override_Worktag_Reference> 
          <wd:Costing_Override_Worktag_Reference wd:Descriptor="PG00003 XXXXX YYYYY"> 
           <wd:ID wd:type="WID">WIDXXXXX</wd:ID> 
           <wd:ID wd:type="Program_ID">PG00003</wd:ID> 
          </wd:Costing_Override_Worktag_Reference> 
          <wd:Costing_Override_Worktag_Reference wd:Descriptor="UD000004 XXXXX YYYYY"> 
           <wd:ID wd:type="WID">WIDXXXXX</wd:ID> 
           <wd:ID wd:type="Organization_Reference_ID">UD000004</wd:ID> 
           <wd:ID wd:type="Custom_Organization_Reference_ID">UD000004</wd:ID> 
          </wd:Costing_Override_Worktag_Reference> 
          <wd:Costing_Override_Worktag_Reference wd:Descriptor="PJ122201 XXXXX YYYYY"> 
           <wd:ID wd:type="WID">WIDXXXXX</wd:ID> 
           <wd:ID wd:type="Project_ID">PJ122201</wd:ID> 
          </wd:Costing_Override_Worktag_Reference> 
          <wd:Distribution_Percent>1</wd:Distribution_Percent> 
         </wd:Worker_Costing_Allocation_Detail_Data> 
        </wd:Worker_Costing_Allocation_Interval_Data> 
        <wd:Worker_Costing_Allocation_Interval_Data> 
         <wd:Costing_Override_ID>COSTING_OVERRIDE-X-YYYY</wd:Costing_Override_ID> 
         <wd:Start_Date>2017-01-01-08:00</wd:Start_Date> 
         <wd:End_Date>2017-06-30-07:00</wd:End_Date> 
         <wd:Worker_Costing_Allocation_Detail_Data> 
          <wd:Order>a</wd:Order> 
          <wd:Costing_Override_Worktag_Reference wd:Descriptor="FD30 XXXXX YYYYY"> 
           <wd:ID wd:type="WID">WIDXXXXX</wd:ID> 
           <wd:ID wd:type="Fund_ID">FD30</wd:ID> 
          </wd:Costing_Override_Worktag_Reference> 
          <wd:Costing_Override_Worktag_Reference wd:Descriptor="LOA"> 
           <wd:ID wd:type="WID">WIDXXXXX</wd:ID> 
           <wd:ID wd:type="Organization_Reference_ID">LOA</wd:ID> 
           <wd:ID wd:type="Custom_Organization_Reference_ID">LOA</wd:ID> 
          </wd:Costing_Override_Worktag_Reference> 
          <wd:Costing_Override_Worktag_Reference wd:Descriptor="CC0565 XXXXX YYYYY"> 
           <wd:ID wd:type="WID">WIDXXXXX</wd:ID> 
           <wd:ID wd:type="Organization_Reference_ID">CC0565</wd:ID> 
           <wd:ID wd:type="Cost_Center_Reference_ID">CC0565</wd:ID> 
          </wd:Costing_Override_Worktag_Reference> 
          <wd:Costing_Override_Worktag_Reference wd:Descriptor="PG00003 XXXXX YYYYY"> 
           <wd:ID wd:type="WID">WIDXXXXX</wd:ID> 
           <wd:ID wd:type="Program_ID">PG00003</wd:ID> 
          </wd:Costing_Override_Worktag_Reference> 
          <wd:Costing_Override_Worktag_Reference wd:Descriptor="UD000004 XXXXX YYYYY"> 
           <wd:ID wd:type="WID">WIDXXXXX</wd:ID> 
           <wd:ID wd:type="Organization_Reference_ID">UD000004</wd:ID> 
           <wd:ID wd:type="Custom_Organization_Reference_ID">UD000004</wd:ID> 
          </wd:Costing_Override_Worktag_Reference> 
          <wd:Costing_Override_Worktag_Reference wd:Descriptor="PJ122201 XXXXX YYYYY"> 
           <wd:ID wd:type="WID">WIDXXXXX</wd:ID> 
           <wd:ID wd:type="Project_ID">PJ122201</wd:ID> 
          </wd:Costing_Override_Worktag_Reference> 
          <wd:Distribution_Percent>1</wd:Distribution_Percent> 
         </wd:Worker_Costing_Allocation_Detail_Data> 
        </wd:Worker_Costing_Allocation_Interval_Data> 
       </wd:Worker_Costing_Allocations_Data> 
      </wd:Response_Data> 
     </wd:Get_Worker_Costing_Allocations_Response> 
    </env:Body> 
</env:Envelope>

來源

2017-07-26 Satish

你的問題是什麼？你是否遇到錯誤，或者沒有得到你想要的結果？編輯你的問題來解釋什麼是錯的或你需要知道什麼，並且包括你當前和預期的結果。 –

感謝您回覆亞歷克斯，編輯我的問題。第一個查詢我可以得到所需的結果，但不是第二個。 – Satish

它仍然有助於顯示（a）現在發生的事情與您的第二個查詢，以及（b）您試圖獲得的輸出。 –

如果你需要從多個層次，每個有多個節點的數據，你可以使用多個XMLTable構造：

select x1.employee_id, x1.position_id, 
    to_date(x2.start_date, 'YYYY-MM-DD-HH24:MI') as start_date, 
    x2.order_1, x2.fund_id 
from xml_table t 
cross join xmltable (
    xmlnamespaces ('http://schemas.xmlsoap.org/soap/envelope/' AS "env", 
     'urn:com.workday/bsvc' as "wd"), 
    '/env:Envelope/env:Body/wd:Get_Worker_Costing_Allocations_Response/wd:Response_Data/wd:Worker_Costing_Allocations_Data' 
    passing t.raw_xml 
    columns Employee_ID number path 'wd:Worker_Reference/wd:ID[@wd:type="Employee_ID"]', 
     Position_ID varchar2(100) path 'wd:Position_Reference/wd:ID[@wd:type="Position_ID"]', 
     Interval_Data xmltype path 'wd:Worker_Costing_Allocation_Interval_Data' 
) x1 
cross join xmltable (
    xmlnamespaces ('urn:com.workday/bsvc' as "wd"), 
    '/wd:Worker_Costing_Allocation_Interval_Data/wd:Worker_Costing_Allocation_Detail_Data' 
     passing x1.Interval_Data 
     columns start_Date varchar2(16) path './../wd:Start_Date', 
     order_1 varchar2(20) path 'wd:Order', 
     fund_id varchar2(20) path 'wd:Costing_Override_Worktag_Reference/wd:ID[@wd:type="Fund_ID"]' 
) x2 
/

EMPLOYEE_ID POSITION_ID START_DATE   ORDER_1 FUND_ID 
----------- ----------- ------------------- ------- ------- 
     11111 P11111  2018-07-01 07:00:00 a  FD89 
     11111 P11111  2018-07-01 07:00:00 b  FD89 
     11111 P11111  2017-07-01 07:00:00 a  FD30 
     11111 P11111  2017-01-01 08:00:00 a  FD30

第一個XMLTable獲取員工和職位ID，以及它自己的XMLType，即Worker_Costing_Allocation_Interval_Data片段。第二個XMLTable傳遞該片段，並提取該級別的多個值。如果您需要，您可以降低更多級別。

請注意，某些節點的特定實例的過濾器已更改;而不是使用[2]來獲取第二個工作人員參考ID，例如我已經找到了一個具有[@wd:type="Employee_ID"]等的特定屬性值。並且類似的構造被起訴爲基金ID;你的原始代碼對於一個名爲Fund_ID的屬性來說很有趣，而不是那個具有該類型值的屬性。

您可以做在一個水平上，但引用備份樹可以得到一個有點混亂。這得到你想要的所有字段：

select x.employee_id, x.position_id, 
    to_date(x.start_date, 'YYYY-MM-DD-HH24:MI') as start_date, 
    to_date(x.end_date, 'YYYY-MM-DD-HH24:MI') as end_date, 
    x.order_1, x.fund_id, x.project_id, x.program_id, x.Cost_Center_Reference_ID, 
    x.custom_organization_ref_id, x.distribution_percent 
from xml_table t 
cross join xmltable (
    xmlnamespaces ('http://schemas.xmlsoap.org/soap/envelope/' AS "env", 
     'urn:com.workday/bsvc' as "wd"), 
    '/env:Envelope/env:Body/wd:Get_Worker_Costing_Allocations_Response/wd:Response_Data/wd:Worker_Costing_Allocations_Data/wd:Worker_Costing_Allocation_Interval_Data/wd:Worker_Costing_Allocation_Detail_Data' 
    passing t.raw_xml 
    columns employee_id number path './../../wd:Worker_Reference/wd:ID[@wd:type="Employee_ID"]', 
     position_id varchar2(100) path './../../wd:Position_Reference/wd:ID[@wd:type="Position_ID"]', 
     start_date varchar2(16) path './../wd:Start_Date', 
     end_date varchar2(16) path './../wd:End_Date', 
     order_1 varchar2(20) path 'wd:Order', 
     fund_id varchar2(20) path 'wd:Costing_Override_Worktag_Reference/wd:ID[@wd:type="Fund_ID"]', 
     project_id varchar2(20) path 'wd:Costing_Override_Worktag_Reference/wd:ID[@wd:type="Project_ID"]', 
     program_id varchar2(20) path 'wd:Costing_Override_Worktag_Reference/wd:ID[@wd:type="Program_ID"]', 
     cost_center_reference_id varchar2(20) path 'wd:Costing_Override_Worktag_Reference/wd:ID[@wd:type="Cost_Center_Reference_ID"]', 
     custom_organization_ref_id varchar2(20) path 'wd:Costing_Override_Worktag_Reference/wd:ID[@wd:type="Custom_Organization_Reference_ID" and starts-with(text(), "UD")]/text()', 
     distribution_percent number path 'wd:Distribution_Percent' 
) x 
/

EMPLOYEE_ID POSITION_ID START_DATE   END_DATE   ORDER_1 FUND_ID PROJECT_ID PROGRAM_ID COST_CENTE CUSTOM_ORG DISTRIBUTION_PERCENT 
----------- ----------- ------------------- ------------------- ------- ------- ---------- ---------- ---------- ---------- -------------------- 
     11111 P11111  2018-07-01 07:00:00 2050-06-30 07:00:00 a  FD89 PJ122201 PG11130 CC12340        0.4 
     11111 P11111  2018-07-01 07:00:00 2050-06-30 07:00:00 b  FD89 PJ122201 PG11130 CC1234         0.6 
     11111 P11111  2017-07-01 07:00:00 2018-06-30 07:00:00 a  FD30 PJ122201 PG00003 CC0565  UD000004     1.0 
     11111 P11111  2017-01-01 08:00:00 2017-06-30 07:00:00 a  FD30 PJ122201 PG00003 CC0565  UD000004     1.0

~~我註釋掉 Custom_Organization_Reference_ID因爲有重複 - LOA和UD000004 - 所以你可能不得不回去多XMLTables來處理呢。~~

這隻發現Custom_Organization_Reference_ID，根據您的評論開始UD。

來源

2017-07-26 17:18:19

亞歷克斯，非常感謝。你是一個專業人士 – Satish

非常感謝Alex，是的，我仍然試圖弄清楚如何處理Custom_Organization_Reference_ID – Satish

的多個值。快速提問：那麼我只能得到一個以UD開頭的「Custom_Organization_Reference_ID」嗎？ – Satish

使用xmltable和XMLNAMESPACES抽取數據

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