SQL XML查询模式？

我在一个141k XML文档中有一些如下所示的XML。 是否有人可以显示SQL Server 2008 XQuery以将其插入两个临时表，即具有“状态”子关系的“国家”表

谢谢

<?xml version="1.0" encoding="utf-8"?>
<countries author="Michael John Grove" title="Country, State-Province selections"
date="2008-Feb-05">
  <country name="Afghanistan">
    <state>Badakhshan</state>
    <state>Badghis</state>
    <state>Baghlan</state>
    </country>
  <country name="Albania">
    <state>Berat</state>
    <state>Bulqize</state>
    <state>Delvine</state>

    etc

巴达克山
巴德吉斯省
巴格兰省
斥责
布尔奇泽
德尔文
等

试试这个：

declare @x xml = '<?xml version="1.0" encoding="utf-8"?>
<countries author="Michael John Grove" title="Country, State-Province selections"
date="2008-Feb-05">
  <country name="Afghanistan">
    <state>Badakhshan</state>
    <state>Badghis</state>
    <state>Baghlan</state>
    </country>
  <country name="Albania">
    <state>Berat</state>
    <state>Bulqize</state>
    <state>Delvine</state>
  </country>
</countries>'

declare @StateTable table(StateId int, [State] nvarchar(100))
declare @CountryTable table(CountryId int, [Country] nvarchar(100))
declare @CountryState table(CountryId int, StateId int)

declare @tempTable table(StateId int, [State] nvarchar(100), CountryId int, [Country] nvarchar(100))

insert @tempTable
    select ROW_NUMBER() over(order by ta.[state], ta.country) [stateId]
        , ta.state
        , DENSE_RANK() over(order by ta.country) [countryId]
        , ta.country
    from
    (
        select t.s.value('.', 'nvarchar(100)') [state]
            , t.s.value('../@name', 'nvarchar(100)') [country]
        from @x.nodes('countries/country/state') t(s)
    )ta


insert @StateTable
    select c.stateId, c.state
    from @tempTable c

insert @CountryTable
    select distinct c.countryId, c.country
    from @tempTable c

insert @CountryState
    select c.countryId, c.stateId
    from @tempTable c

select * from @StateTable
select * from @CountryTable
select * from @CountryState

试试这个：

declare @x xml = '<?xml version="1.0" encoding="utf-8"?>
<countries author="Michael John Grove" title="Country, State-Province selections"
date="2008-Feb-05">
  <country name="Afghanistan">
    <state>Badakhshan</state>
    <state>Badghis</state>
    <state>Baghlan</state>
    </country>
  <country name="Albania">
    <state>Berat</state>
    <state>Bulqize</state>
    <state>Delvine</state>
  </country>
</countries>'

declare @StateTable table(StateId int, [State] nvarchar(100))
declare @CountryTable table(CountryId int, [Country] nvarchar(100))
declare @CountryState table(CountryId int, StateId int)

declare @tempTable table(StateId int, [State] nvarchar(100), CountryId int, [Country] nvarchar(100))

insert @tempTable
    select ROW_NUMBER() over(order by ta.[state], ta.country) [stateId]
        , ta.state
        , DENSE_RANK() over(order by ta.country) [countryId]
        , ta.country
    from
    (
        select t.s.value('.', 'nvarchar(100)') [state]
            , t.s.value('../@name', 'nvarchar(100)') [country]
        from @x.nodes('countries/country/state') t(s)
    )ta


insert @StateTable
    select c.stateId, c.state
    from @tempTable c

insert @CountryTable
    select distinct c.countryId, c.country
    from @tempTable c

insert @CountryState
    select c.countryId, c.stateId
    from @tempTable c

select * from @StateTable
select * from @CountryTable
select * from @CountryState

---

具有整数标识列作为主键的版本

declare @Country table
(
  CountryID int identity primary key,
  Name varchar(50)
)

declare @State table
(
  StateID int identity primary key,
  CountryID int,
  Name varchar(50)
)

insert into @Country (Name)
select C.C.value('@name', 'varchar(50)')
from @xml.nodes('/countries/country') as C(C)

insert into @State (CountryID, Name)
select Country.CountryID, S.S.value('.', 'varchar(50)')
from @xml.nodes('/countries/country') as C(C)
  cross apply C.C.nodes('state') as S(S)
  inner join @Country as Country
    on Country.Name = C.C.value('@name', 'varchar(50)')

declare @Country table
(
  CountryName varchar(50) primary key
)

declare @State table
(
  StateName varchar(50) primary key,
  CountryName varchar(50)
)

insert into @Country (CountryName)
select distinct C.C.value('@name', 'varchar(50)')
from @xml.nodes('/countries/country') as C(C)

insert into @State (StateName, CountryName)
select S.S.value('.', 'varchar(50)'), 
       C.C.value('@name', 'varchar(50)')
from @xml.nodes('/countries/country') as C(C)
  cross apply C.C.nodes('state') as S(S)

以及将名称用作主键的版本

declare @Country table
(
  CountryID int identity primary key,
  Name varchar(50)
)

declare @State table
(
  StateID int identity primary key,
  CountryID int,
  Name varchar(50)
)

insert into @Country (Name)
select C.C.value('@name', 'varchar(50)')
from @xml.nodes('/countries/country') as C(C)

insert into @State (CountryID, Name)
select Country.CountryID, S.S.value('.', 'varchar(50)')
from @xml.nodes('/countries/country') as C(C)
  cross apply C.C.nodes('state') as S(S)
  inner join @Country as Country
    on Country.Name = C.C.value('@name', 'varchar(50)')

declare @Country table
(
  CountryName varchar(50) primary key
)

declare @State table
(
  StateName varchar(50) primary key,
  CountryName varchar(50)
)

insert into @Country (CountryName)
select distinct C.C.value('@name', 'varchar(50)')
from @xml.nodes('/countries/country') as C(C)

insert into @State (StateName, CountryName)
select S.S.value('.', 'varchar(50)'), 
       C.C.value('@name', 'varchar(50)')
from @xml.nodes('/countries/country') as C(C)
  cross apply C.C.nodes('state') as S(S)

---

具有整数标识列作为主键的版本

declare @Country table
(
  CountryID int identity primary key,
  Name varchar(50)
)

declare @State table
(
  StateID int identity primary key,
  CountryID int,
  Name varchar(50)
)

insert into @Country (Name)
select C.C.value('@name', 'varchar(50)')
from @xml.nodes('/countries/country') as C(C)

insert into @State (CountryID, Name)
select Country.CountryID, S.S.value('.', 'varchar(50)')
from @xml.nodes('/countries/country') as C(C)
  cross apply C.C.nodes('state') as S(S)
  inner join @Country as Country
    on Country.Name = C.C.value('@name', 'varchar(50)')

declare @Country table
(
  CountryName varchar(50) primary key
)

declare @State table
(
  StateName varchar(50) primary key,
  CountryName varchar(50)
)

insert into @Country (CountryName)
select distinct C.C.value('@name', 'varchar(50)')
from @xml.nodes('/countries/country') as C(C)

insert into @State (StateName, CountryName)
select S.S.value('.', 'varchar(50)'), 
       C.C.value('@name', 'varchar(50)')
from @xml.nodes('/countries/country') as C(C)
  cross apply C.C.nodes('state') as S(S)

以及将名称用作主键的版本

declare @Country table
(
  CountryID int identity primary key,
  Name varchar(50)
)

declare @State table
(
  StateID int identity primary key,
  CountryID int,
  Name varchar(50)
)

insert into @Country (Name)
select C.C.value('@name', 'varchar(50)')
from @xml.nodes('/countries/country') as C(C)

insert into @State (CountryID, Name)
select Country.CountryID, S.S.value('.', 'varchar(50)')
from @xml.nodes('/countries/country') as C(C)
  cross apply C.C.nodes('state') as S(S)
  inner join @Country as Country
    on Country.Name = C.C.value('@name', 'varchar(50)')

declare @Country table
(
  CountryName varchar(50) primary key
)

declare @State table
(
  StateName varchar(50) primary key,
  CountryName varchar(50)
)

insert into @Country (CountryName)
select distinct C.C.value('@name', 'varchar(50)')
from @xml.nodes('/countries/country') as C(C)

insert into @State (StateName, CountryName)
select S.S.value('.', 'varchar(50)'), 
       C.C.value('@name', 'varchar(50)')
from @xml.nodes('/countries/country') as C(C)
  cross apply C.C.nodes('state') as S(S)

---

我建议对此任务使用XML批量加载（SQLXML 4.0）。过程如下： 1.创建临时选项卡 2.创建XML和临时表结构之间的映射

---

3.使用单个调用执行实际加载我建议使用XML批量加载（SQLXML 4.0）来完成此任务。过程如下： 1.创建临时选项卡 2.创建XML和临时表结构之间的映射 3.使用单个调用执行实际加载