Question

我正在尝试从XML文件中检索数据。下面是XML文档的外观和下面的SQL代码。它将运行代码并显示列标题 - 但不会填充任何数据。我错过了什么？

<profile xmlns="http://feed.elasticstats.com/schema/mma/v1/participants-profile.xsd" generated="2015-12-10T17:34:54Z">
<fighters>
<fighter id="01585452-852a-4b40-a6dc-fdd04279f02c" height="72" weight="170" reach="" stance="" first_name="Sai" nick_name="The Boss" last_name="Wang">
  <record wins="6" losses="4" draws="1" no_contests="0" />
  <born date="1988-01-16" country_code="UNK" country="Unknown" state="" city="" />
  <out_of country_code="UNK" country="Unknown" state="" city="" />
</fighter>
<fighter id="0168dd6b-b3e1-4954-8b71-877a63772dec" height="" weight="0" reach="" stance="" first_name="Enrique" nick_name="Wasabi" last_name="Marin">
  <record wins="8" losses="2" draws="0" no_contests="0" />
  <born date="" country_code="UNK" country="Unknown" state="" city="" />
  <out_of country_code="UNK" country="Unknown" state="" city="" />
</fighter>

DECLARE @x xml

SELECT @x = P
FROM OPENROWSET (BULK 'C:\Python27\outputMMA.xml', SINGLE_BLOB) AS         FIGHTERS(P)

DECLARE @hdoc int

EXEC sp_xml_preparedocument @hdoc OUTPUT, @x

SELECT *
FROM OPENXML (@hdoc, '/fighters/fighter', 1) --1\ IS ATTRIBUTES AND 2 IS     ELEMENTS
WITH (
    id varchar(100),
    height varchar(10),
    last_name varchar(100)  

) --THIS IS WHERE YOU SELECT FIELDS you want returned

EXEC sp_xml_removedocument @hdoc

Answer 1

FROM OPENXML不再是最好的方法了。试试这样：

只需将其复制到一个空查询窗口并执行：

DECLARE @xml XML=
'<profile xmlns="http://feed.elasticstats.com/schema/mma/v1/participants-profile.xsd" generated="2015-12-10T17:34:54Z">
  <fighters>
    <fighter id="01585452-852a-4b40-a6dc-fdd04279f02c" height="72" weight="170" reach="" stance="" first_name="Sai" nick_name="The Boss" last_name="Wang">
      <record wins="6" losses="4" draws="1" no_contests="0" />
      <born date="1988-01-16" country_code="UNK" country="Unknown" state="" city="" />
      <out_of country_code="UNK" country="Unknown" state="" city="" />
    </fighter>
    <fighter id="0168dd6b-b3e1-4954-8b71-877a63772dec" height="" weight="0" reach="" stance="" first_name="Enrique" nick_name="Wasabi" last_name="Marin">
      <record wins="8" losses="2" draws="0" no_contests="0" />
      <born date="" country_code="UNK" country="Unknown" state="" city="" />
      <out_of country_code="UNK" country="Unknown" state="" city="" />
    </fighter>
  </fighters>
</profile>';

WITH XMLNAMESPACES(DEFAULT 'http://feed.elasticstats.com/schema/mma/v1/participants-profile.xsd')
SELECT One.fighter.value('@id','uniqueidentifier') AS Fighter_ID
      ,One.fighter.value('@height','int') AS Fighter_Height      
      ,One.fighter.value('@weight','int') AS Fighter_Weigth      
      ,One.fighter.value('@reach','varchar(100)') AS Fighter_Height      
      ,One.fighter.value('@stance','varchar(100)') AS Fighter_Height      
      ,One.fighter.value('@first_name','varchar(100)') AS Fighter_FirstName
      ,One.fighter.value('@nick_name','varchar(100)') AS Fighter_NickName
      ,One.fighter.value('@last_name','varchar(100)') AS Fighter_LastName
      ,One.fighter.value('record[1]/@wins','int') AS FighterRecord_Wins
      ,One.fighter.value('record[1]/@draws','int') AS FighterRecord_Draws
      ,One.fighter.value('record[1]/@no_contests','int') AS FighterRecord_NoContest
      ,One.fighter.value('born[1]/@date','date') AS FighterBorn_Date
      ,One.fighter.value('born[1]/@country_code','varchar(10)') AS FighterBorn_CountryCode
      ,One.fighter.value('born[1]/@country','varchar(100)') AS FighterBorn_Country
      ,One.fighter.value('born[1]/@state','varchar(100)') AS FighterBorn_State
      ,One.fighter.value('born[1]/@city','varchar(100)') AS FighterBorn_City
      ,One.fighter.value('out_of[1]/@country_code','varchar(10)') AS FighterOutOf_CountryCode
      ,One.fighter.value('out_of[1]/@country','varchar(100)') AS FighterOutOf_Country
      ,One.fighter.value('out_of[1]/@state','varchar(100)') AS FighterOutOf_State
      ,One.fighter.value('out_of[1]/@city','varchar(100)') AS FighterOutOf_City
FROM @xml.nodes('/profile/fighters/fighter') AS One(fighter)

Answer 2

您的XML文档中有一个未声明的命名空间。考虑声明命名空间并在xpath表达式中引用它的修订：

DECLARE @x xml;    
SELECT @x = P
FROM OPENROWSET (BULK 'C:\Python27\outputMMA.xml', SINGLE_BLOB) AS FIGHTERS(P)

DECLARE @hdoc int
EXEC sp_xml_preparedocument @hdoc OUTPUT, @x,
    '<root xmlns:doc="http://feed.elasticstats.com/schema/mma/v1/participants-profile.xsd"/>'

SELECT *
FROM OPENXML (@hdoc, '/doc:profile/doc:fighters/doc:fighter', 1)  
WITH (
      id varchar(100),
      height varchar(10),
      last_name varchar(100)      
     ) 

EXEC sp_xml_removedocument @hdoc

Answer 3

首先修复数据（:xs，</fighters>，</profile>）

<profile xmlns:xs="http://feed.elasticstats.com/schema/mma/v1/participants-profile.xsd" generated="2015-12-10T17:34:54Z">
<fighters>
<fighter id="01585452-852a-4b40-a6dc-fdd04279f02c" height="72" weight="170" reach="" stance="" first_name="Sai" nick_name="The Boss" last_name="Wang">
  <record wins="6" losses="4" draws="1" no_contests="0" />
  <born date="1988-01-16" country_code="UNK" country="Unknown" state="" city="" />
  <out_of country_code="UNK" country="Unknown" state="" city="" />
</fighter>
<fighter id="0168dd6b-b3e1-4954-8b71-877a63772dec" height="" weight="0" reach="" stance="" first_name="Enrique" nick_name="Wasabi" last_name="Marin">
  <record wins="8" losses="2" draws="0" no_contests="0" />
  <born date="" country_code="UNK" country="Unknown" state="" city="" />
  <out_of country_code="UNK" country="Unknown" state="" city="" />
</fighter>
</fighters>
</profile>

然后是代码

FROM OPENXML (@docHandle, 'profile/fighters/fighter', 1)

我们已经完成了

 01585452-852a-4b40-a6dc-fdd04279f02c   72  Wang
 0168dd6b-b3e1-4954-8b71-877a63772dec       Marin

在SQL中读取XML，没有数据被拉出

3 个答案: