从XML中查询数据

我试图使用sql语句从XML文档中提取特定数据。该文件如下：从XML中查询数据

<?xml version="1.0" encoding="Shift-JIS" ?> 
 
<Ophthalmology xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:nsCommon="http://www.joia.or.jp/standardized/namespaces/Common" xmlns:nsREF="http://www.joia.or.jp/standardized/namespaces/REF" xsi:schemaLocation="http://www.joia.or.jp/standardized/namespaces/Common Common_schema.xsd http://www.joia.or.jp/standardized/namespaces/REF REF_schema.xsd"> 
 
\t <nsCommon:Common> 
 
\t \t <nsCommon:Company>TOPCON</nsCommon:Company> 
 
\t \t <nsCommon:ModelName>KR-800</nsCommon:ModelName> 
 
\t \t <nsCommon:MachineNo>01</nsCommon:MachineNo> 
 
\t \t <nsCommon:ROMVersion>1.05.08</nsCommon:ROMVersion> 
 
\t \t <nsCommon:Version>1.2</nsCommon:Version> 
 
\t \t <nsCommon:Date>2016-09-17</nsCommon:Date> 
 
\t \t <nsCommon:Time>01:17:35</nsCommon:Time> 
 
\t \t <nsCommon:Patient> 
 
\t \t \t <nsCommon:No.>0006</nsCommon:No.> 
 
\t \t \t <nsCommon:ID>0006</nsCommon:ID> 
 
\t \t \t <nsCommon:FirstName></nsCommon:FirstName> 
 
\t \t \t <nsCommon:MiddleName></nsCommon:MiddleName> 
 
\t \t \t <nsCommon:LastName></nsCommon:LastName> 
 
\t \t \t <nsCommon:Sex></nsCommon:Sex> 
 
\t \t \t <nsCommon:Age></nsCommon:Age> 
 
\t \t \t <nsCommon:DOB></nsCommon:DOB> 
 
\t \t \t <nsCommon:NameJ1></nsCommon:NameJ1> 
 
\t \t \t <nsCommon:NameJ2></nsCommon:NameJ2> 
 
\t \t </nsCommon:Patient> 
 
\t \t <nsCommon:Operator> 
 
\t \t \t <nsCommon:No.></nsCommon:No.> 
 
\t \t \t <nsCommon:ID></nsCommon:ID> 
 
\t \t </nsCommon:Operator> 
 
\t </nsCommon:Common> 
 
\t <nsREF:Measure type="REF"> 
 
\t \t <nsREF:VD unit="mm">13.75</nsREF:VD> 
 
\t \t <nsREF:DiopterStep unit="D">0.25</nsREF:DiopterStep> 
 
\t \t <nsREF:AxisStep unit="deg">1</nsREF:AxisStep> 
 
\t \t <nsREF:CylinderMode>-</nsREF:CylinderMode> 
 
\t \t <nsREF:REF> 
 
\t \t \t <nsREF:R> 
 
\t \t \t \t <nsREF:List No="1"> 
 
\t \t \t \t \t <nsREF:Sphere unit="D">0.50</nsREF:Sphere> 
 
\t \t \t \t \t <nsREF:Cylinder unit="D">-1.25</nsREF:Cylinder> 
 
\t \t \t \t \t <nsREF:Axis unit="deg">178</nsREF:Axis> 
 
\t \t \t \t \t <nsREF:SE unit="D">-0.25</nsREF:SE> 
 
\t \t \t \t \t <nsREF:CataractMode></nsREF:CataractMode> 
 
\t \t \t \t \t <nsREF:IOLMode></nsREF:IOLMode> 
 
\t \t \t \t \t <nsREF:ConfidenceIndex></nsREF:ConfidenceIndex> 
 
\t \t \t \t </nsREF:List> 
 
\t \t \t \t <nsREF:List No="2"> 
 
\t \t \t \t \t <nsREF:Sphere unit="D">0.50</nsREF:Sphere> 
 
\t \t \t \t \t <nsREF:Cylinder unit="D">-1.00</nsREF:Cylinder> 
 
\t \t \t \t \t <nsREF:Axis unit="deg">177</nsREF:Axis> 
 
\t \t \t \t \t <nsREF:SE unit="D">0.00</nsREF:SE> 
 
\t \t \t \t \t <nsREF:CataractMode></nsREF:CataractMode> 
 
\t \t \t \t \t <nsREF:IOLMode></nsREF:IOLMode> 
 
\t \t \t \t \t <nsREF:ConfidenceIndex></nsREF:ConfidenceIndex> 
 
\t \t \t \t </nsREF:List> 
 
\t \t \t \t <nsREF:Median> 
 
\t \t \t \t \t <nsREF:Sphere unit="D">0.50</nsREF:Sphere> 
 
\t \t \t \t \t <nsREF:Cylinder unit="D">-1.00</nsREF:Cylinder> 
 
\t \t \t \t \t <nsREF:Axis unit="deg">177</nsREF:Axis> 
 
\t \t \t \t \t <nsREF:SE unit="D">0.00</nsREF:SE> 
 
\t \t \t \t </nsREF:Median> 
 
\t \t \t </nsREF:R> 
 
\t \t \t <nsREF:L> 
 
\t \t \t \t <nsREF:List No="1"> 
 
\t \t \t \t \t <nsREF:Sphere unit="D">0.50</nsREF:Sphere> 
 
\t \t \t \t \t <nsREF:Cylinder unit="D">-0.50</nsREF:Cylinder> 
 
\t \t \t \t \t <nsREF:Axis unit="deg">179</nsREF:Axis> 
 
\t \t \t \t \t <nsREF:SE unit="D">0.25</nsREF:SE> 
 
\t \t \t \t \t <nsREF:CataractMode></nsREF:CataractMode> 
 
\t \t \t \t \t <nsREF:IOLMode></nsREF:IOLMode> 
 
\t \t \t \t \t <nsREF:ConfidenceIndex></nsREF:ConfidenceIndex> 
 
\t \t \t \t </nsREF:List> 
 
\t \t \t \t <nsREF:List No="2"> 
 
\t \t \t \t \t <nsREF:Sphere unit="D">0.50</nsREF:Sphere> 
 
\t \t \t \t \t <nsREF:Cylinder unit="D">-0.50</nsREF:Cylinder> 
 
\t \t \t \t \t <nsREF:Axis unit="deg">179</nsREF:Axis> 
 
\t \t \t \t \t <nsREF:SE unit="D">0.25</nsREF:SE> 
 
\t \t \t \t \t <nsREF:CataractMode></nsREF:CataractMode> 
 
\t \t \t \t \t <nsREF:IOLMode></nsREF:IOLMode> 
 
\t \t \t \t \t <nsREF:ConfidenceIndex></nsREF:ConfidenceIndex> 
 
\t \t \t \t </nsREF:List> 
 
\t \t \t \t <nsREF:List No="3"> 
 
\t \t \t \t \t <nsREF:Sphere unit="D">0.50</nsREF:Sphere> 
 
\t \t \t \t \t <nsREF:Cylinder unit="D">-0.50</nsREF:Cylinder> 
 
\t \t \t \t \t <nsREF:Axis unit="deg">179</nsREF:Axis> 
 
\t \t \t \t \t <nsREF:SE unit="D">0.25</nsREF:SE> 
 
\t \t \t \t \t <nsREF:CataractMode></nsREF:CataractMode> 
 
\t \t \t \t \t <nsREF:IOLMode></nsREF:IOLMode> 
 
\t \t \t \t \t <nsREF:ConfidenceIndex></nsREF:ConfidenceIndex> 
 
\t \t \t \t </nsREF:List> 
 
\t \t \t \t <nsREF:Median> 
 
\t \t \t \t \t <nsREF:Sphere unit="D">0.50</nsREF:Sphere> 
 
\t \t \t \t \t <nsREF:Cylinder unit="D">-0.50</nsREF:Cylinder> 
 
\t \t \t \t \t <nsREF:Axis unit="deg">179</nsREF:Axis> 
 
\t \t \t \t \t <nsREF:SE unit="D">0.25</nsREF:SE> 
 
\t \t \t \t </nsREF:Median> 
 
\t \t \t </nsREF:L> 
 
\t \t </nsREF:REF> 
 
\t \t <nsREF:PD> 
 
\t \t \t <nsREF:WorkingDistance unit="cm"></nsREF:WorkingDistance> 
 
\t \t \t <nsREF:Distance unit="mm">68.50</nsREF:Distance> 
 
\t \t \t <nsREF:Near unit="mm">68.50</nsREF:Near> 
 
\t \t </nsREF:PD> 
 
\t </nsREF:Measure> 
 
</Ophthalmology>

我输入我的SQL查询来获取平均球面数值如下：

SELECT RSphere 
 
       FROM XMLTABLE (
 
         '/nsREF:Measure/nsREF:REF/nsREF:R/nsREF:Median/nsREF:Sphere' 
 
         PASSING XMLTYPE (BFILENAME ('MY_DIR', 'aaa.xml'), 
 
             NLS_CHARSET_ID ('Shift-JIS')) 
 
         COLUMNS RSphere VARCHAR2 (255) PATH 'text()')

但我发现了错误

[错误]执行（4：17）：ORA-19228：XPST0008 - 未声明的标识符：前缀 'nsREF' 本地名 'nsREF：测量'

请你帮我得到正确的值

来源

2016-10-01 Big Farrow

甲骨文设置

CREATE TABLE data (xml XMLType); 

DECLARE 
    xmlString CLOB := '<?xml version="1.0" encoding="Shift-JIS" ?> 
<Ophthalmology xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:nsCommon="http://www.joia.or.jp/standardized/namespaces/Common" xmlns:nsREF="http://www.joia.or.jp/standardized/namespaces/REF" xsi:schemaLocation="http://www.joia.or.jp/standardized/namespaces/Common Common_schema.xsd http://www.joia.or.jp/standardized/namespaces/REF REF_schema.xsd"> 
    <nsCommon:Common> 
     <nsCommon:Company>TOPCON</nsCommon:Company> 
     <nsCommon:ModelName>KR-800</nsCommon:ModelName> 
     <nsCommon:MachineNo>01</nsCommon:MachineNo> 
     <nsCommon:ROMVersion>1.05.08</nsCommon:ROMVersion> 
     <nsCommon:Version>1.2</nsCommon:Version> 
     <nsCommon:Date>2016-09-17</nsCommon:Date> 
     <nsCommon:Time>01:17:35</nsCommon:Time> 
     <nsCommon:Patient> 
      <nsCommon:No.>0006</nsCommon:No.> 
      <nsCommon:ID>0006</nsCommon:ID> 
      <nsCommon:FirstName></nsCommon:FirstName> 
      <nsCommon:MiddleName></nsCommon:MiddleName> 
      <nsCommon:LastName></nsCommon:LastName> 
      <nsCommon:Sex></nsCommon:Sex> 
      <nsCommon:Age></nsCommon:Age> 
      <nsCommon:DOB></nsCommon:DOB> 
      <nsCommon:NameJ1></nsCommon:NameJ1> 
      <nsCommon:NameJ2></nsCommon:NameJ2> 
     </nsCommon:Patient> 
     <nsCommon:Operator> 
      <nsCommon:No.></nsCommon:No.> 
      <nsCommon:ID></nsCommon:ID> 
     </nsCommon:Operator> 
    </nsCommon:Common> 
    <nsREF:Measure type="REF"> 
     <nsREF:VD unit="mm">13.75</nsREF:VD> 
     <nsREF:DiopterStep unit="D">0.25</nsREF:DiopterStep> 
     <nsREF:AxisStep unit="deg">1</nsREF:AxisStep> 
     <nsREF:CylinderMode>-</nsREF:CylinderMode> 
     <nsREF:REF> 
      <nsREF:R> 
       <nsREF:List No="1"> 
        <nsREF:Sphere unit="D">0.50</nsREF:Sphere> 
        <nsREF:Cylinder unit="D">-1.25</nsREF:Cylinder> 
        <nsREF:Axis unit="deg">178</nsREF:Axis> 
        <nsREF:SE unit="D">-0.25</nsREF:SE> 
        <nsREF:CataractMode></nsREF:CataractMode> 
        <nsREF:IOLMode></nsREF:IOLMode> 
        <nsREF:ConfidenceIndex></nsREF:ConfidenceIndex> 
       </nsREF:List> 
       <nsREF:List No="2"> 
        <nsREF:Sphere unit="D">0.50</nsREF:Sphere> 
        <nsREF:Cylinder unit="D">-1.00</nsREF:Cylinder> 
        <nsREF:Axis unit="deg">177</nsREF:Axis> 
        <nsREF:SE unit="D">0.00</nsREF:SE> 
        <nsREF:CataractMode></nsREF:CataractMode> 
        <nsREF:IOLMode></nsREF:IOLMode> 
        <nsREF:ConfidenceIndex></nsREF:ConfidenceIndex> 
       </nsREF:List> 
       <nsREF:Median> 
        <nsREF:Sphere unit="D">0.50</nsREF:Sphere> 
        <nsREF:Cylinder unit="D">-1.00</nsREF:Cylinder> 
        <nsREF:Axis unit="deg">177</nsREF:Axis> 
        <nsREF:SE unit="D">0.00</nsREF:SE> 
       </nsREF:Median> 
      </nsREF:R> 
      <nsREF:L> 
       <nsREF:List No="1"> 
        <nsREF:Sphere unit="D">0.50</nsREF:Sphere> 
        <nsREF:Cylinder unit="D">-0.50</nsREF:Cylinder> 
        <nsREF:Axis unit="deg">179</nsREF:Axis> 
        <nsREF:SE unit="D">0.25</nsREF:SE> 
        <nsREF:CataractMode></nsREF:CataractMode> 
        <nsREF:IOLMode></nsREF:IOLMode> 
        <nsREF:ConfidenceIndex></nsREF:ConfidenceIndex> 
       </nsREF:List> 
       <nsREF:List No="2"> 
        <nsREF:Sphere unit="D">0.50</nsREF:Sphere> 
        <nsREF:Cylinder unit="D">-0.50</nsREF:Cylinder> 
        <nsREF:Axis unit="deg">179</nsREF:Axis> 
        <nsREF:SE unit="D">0.25</nsREF:SE> 
        <nsREF:CataractMode></nsREF:CataractMode> 
        <nsREF:IOLMode></nsREF:IOLMode> 
        <nsREF:ConfidenceIndex></nsREF:ConfidenceIndex> 
       </nsREF:List> 
       <nsREF:List No="3"> 
        <nsREF:Sphere unit="D">0.50</nsREF:Sphere> 
        <nsREF:Cylinder unit="D">-0.50</nsREF:Cylinder> 
        <nsREF:Axis unit="deg">179</nsREF:Axis> 
        <nsREF:SE unit="D">0.25</nsREF:SE> 
        <nsREF:CataractMode></nsREF:CataractMode> 
        <nsREF:IOLMode></nsREF:IOLMode> 
        <nsREF:ConfidenceIndex></nsREF:ConfidenceIndex> 
       </nsREF:List> 
       <nsREF:Median> 
        <nsREF:Sphere unit="D">0.50</nsREF:Sphere> 
        <nsREF:Cylinder unit="D">-0.50</nsREF:Cylinder> 
        <nsREF:Axis unit="deg">179</nsREF:Axis> 
        <nsREF:SE unit="D">0.25</nsREF:SE> 
       </nsREF:Median> 
      </nsREF:L> 
     </nsREF:REF> 
     <nsREF:PD> 
      <nsREF:WorkingDistance unit="cm"></nsREF:WorkingDistance> 
      <nsREF:Distance unit="mm">68.50</nsREF:Distance> 
      <nsREF:Near unit="mm">68.50</nsREF:Near> 
     </nsREF:PD> 
    </nsREF:Measure> 
</Ophthalmology>'; 
BEGIN 
    INSERT INTO DATA (xml) VALUES (XMLType(xmlString)); 
END; 
/

COMMIT;

查询：

SELECT x.* 
FROM Data d, 
    XMLTABLE (
     XMLNAMESPACES(
     'http://www.joia.or.jp/standardized/namespaces/Common' AS "nsCommon", 
     'http://www.joia.or.jp/standardized/namespaces/REF' AS "nsREF" 
     ), 
     '//Ophthalmology/nsREF:Measure/nsREF:REF/nsREF:R/nsREF:Median' 
     PASSING d.xml 
     COLUMNS RSphere NUMBER(5,2) PATH '//nsREF:Sphere', 
       RCylinder NUMBER(5,2) PATH '//nsREF:Cylinder', 
       RAxis  NUMBER(5,2) PATH '//nsREF:Axis', 
       RSE  NUMBER(5,2) PATH '//nsREF:SE' 
    ) x;

输出：

RSPHERE RCYLINDER  RAXIS  RSE 
---------- ---------- ---------- ---------- 
     .5   -1  177   0

来源

2016-10-01 13:06:26 MT0

谢谢。它像一个魅力:) –

从XML中查询数据

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