sql for xml query sample
sample 1:
declare @x xml select @x='<ArrayOfScheduledTime>
<ScheduledTime>
<RecurrenceType>EveryMonday</RecurrenceType>
<Stamp>
<dateTime>2000-01-01T19:30:00</dateTime>
</Stamp>
</ScheduledTime>
<ScheduledTime>
<RecurrenceType>EveryThursday</RecurrenceType>
<Stamp>
<dateTime>2000-01-01T19:30:00</dateTime>
</Stamp>
</ScheduledTime>
<ScheduledTime>
<RecurrenceType>EverySunday</RecurrenceType>
<Stamp>
<dateTime>2000-01-01T19:30:00</dateTime>
</Stamp>
</ScheduledTime>
</ArrayOfScheduledTime>' SELECT N.v.value('.' , 'VARCHAR(100)')B
FROM @x.nodes('/ArrayOfScheduledTime/ScheduledTime/RecurrenceType')N(v) /*
EveryMonday
EveryThursday
EverySunday
*/
select @x.query('/ArrayOfScheduledTime/ScheduledTime/RecurrenceType')
/*
<RecurrenceType>EveryMonday</RecurrenceType>
<RecurrenceType>EveryThursday</RecurrenceType>
<RecurrenceType>EverySunday</RecurrenceType>
*/
select o.value('RecurrenceType[1]','varchar(20)') 'RecurrenceType'
from (select @x 'x') t
cross apply x.nodes('/ArrayOfScheduledTime/ScheduledTime') x(o)
/*
RecurrenceType
--------------------
EveryMonday
EveryThursday
EverySunday
(3 行受影响)
*/
DECLARE @handel int;
EXEC sp_xml_preparedocument @handel output, @x
SELECT * from OPENXML(@handel,'/ArrayOfScheduledTime/ScheduledTime',2)
WITH(RecurrenceType varchar(50)) EXEC sp_xml_removedocument @handel /**************结果*****************
EveryMonday
EveryThursday
EverySunday
*/
sample2:
DECLARE @xDailyConfig XML
set @xDailyConfig='<ArrayOfScheduledTime>
<ScheduledTime>
<RecurrenceType>Everyday</RecurrenceType>
<Stamp>
<dateTime>2000-01-01T09:00:00</dateTime>
<dateTime>2000-01-01T13:00:00</dateTime>
<dateTime>2000-01-01T19:00:00</dateTime>
</Stamp>
</ScheduledTime>
</ArrayOfScheduledTime>' SELECT N.v.value('.' , 'VARCHAR(100)')B
FROM @xDailyConfig.nodes('/ArrayOfScheduledTime/ScheduledTime/Stamp/dateTime')N(v) /*
2000-01-01T09:00:00
2000-01-01T13:00:00
2000-01-01T19:00:00
*/
DECLARE @handel int;
EXEC sp_xml_preparedocument @handel output, @xDailyConfig
SELECT * from OPENXML(@handel,'/ArrayOfScheduledTime/ScheduledTime/Stamp/dateTime',3)
WITH(dateTime varchar(50) '.[1]') EXEC sp_xml_removedocument @handel /*
2000-01-01T09:00:00
2000-01-01T13:00:00
2000-01-01T19:00:00
*/
-- 统计每一个RecurrenceType对其相应的dateTime的个数
declare @x xml select @x='<ArrayOfScheduledTime>
<ScheduledTime>
<RecurrenceType>EverySaturday</RecurrenceType>
<Stamp>
<dateTime>2000-01-01T07:00:00</dateTime>
<dateTime>2000-01-01T08:00:00</dateTime>
</Stamp>
</ScheduledTime>
<ScheduledTime>
<RecurrenceType>EveryWednesday</RecurrenceType>
<Stamp>
<dateTime>2000-01-01T09:00:00</dateTime>
</Stamp>
</ScheduledTime>
<ScheduledTime>
<RecurrenceType>EveryFriday</RecurrenceType>
<Stamp>
<dateTime>2000-01-01T09:00:00</dateTime>
<dateTime>2000-01-01T09:20:00</dateTime>
<dateTime>2000-01-01T09:40:00</dateTime>
</Stamp>
</ScheduledTime>
<ScheduledTime>
<RecurrenceType>EverySunday</RecurrenceType>
<Stamp>
<dateTime>2000-01-01T09:00:00</dateTime>
</Stamp>
</ScheduledTime>
</ArrayOfScheduledTime>' SELECT T2.RecurrenceType,COUNT(T3.[dateTime]) [Count]
FROM
( SELECT CONVERT(XML,N.v.query('.'))C1
FROM @x.nodes('/ArrayOfScheduledTime/ScheduledTime')N(v))T1
OUTER APPLY(
SELECT M.v.value('.','VARCHAR(100)')RecurrenceType
FROM T1.C1.nodes('//RecurrenceType') M(v)
)T2
OUTER APPLY(
SELECT L.v.value('.','VARCHAR(100)')[dateTime]
FROM T1.C1.nodes('//dateTime') L(v)
)T3
GROUP BY T2.RecurrenceType
/*
RecurrenceType Count
-------------------- -----------
EverySaturday 2
EveryWednesday 1
EveryFriday 3
EverySunday 1
*/ SELECT N.v.query('RecurrenceType').value('.','VARCHAR(20)') RecurrenceType,
N.v.query('count(Stamp//dateTime)').value('.','int') [Count]
FROM @x.nodes('/ArrayOfScheduledTime/ScheduledTime')N(v)
/*
RecurrenceType Count
-------------------- -----------
EverySaturday 2
EveryWednesday 1
EveryFriday 3
EverySunday 1
*/
其他例子:
declare @x xml=
'<ArrayOfGuid>
<guid>754350a3-228e-4981-a430-a5f62af9b936</guid>
<guid>792f9404-6330-4302-999a-3ec36e9e1275</guid>
</ArrayOfGuid>' -- get count
SELECT TOP 1 N.v.query('count(//guid)').value('.','varchar(100)') [COUNT]
FROM @x.nodes('/ArrayOfGuid/guid')N(v) -- get each guidValue
SELECT N.v.value('.','VARCHAR(100)') guidValue
--N.v.query('count(//guid)').value('.','VARCHAR(100)') [Count]
FROM @x.nodes('/ArrayOfGuid/guid')N(v) /* result COUNT
----------------------------------------------------------------------------------------------------
2 (1 行受影响) guidValue
----------------------------------------------------------------------------------------------------
754350a3-228e-4981-a430-a5f62af9b936
792f9404-6330-4302-999a-3ec36e9e1275 (2 行受影响)
*/
other sample 2:
declare @x xml
='<Audits OperatorKey="77de120a-7704-49b1-8980-8f1e9ad65edd">
<AuditItem SourceName="PatientProfile" SourceIdentity="77de120a-7704-49b1-8980-8f1e9ad65edd">
<DataXml>
<PatientProfile>
<Key p2:nil="true" xmlns:p2="http://www.w3.org/2001/XMLSchema-instance" />
<CreatedStamp>2015-07-28T03:18:46.843Z</CreatedStamp>
<LastUpdatedStamp>2015-07-28T03:18:46.844Z</LastUpdatedStamp>
<State>Normal</State>
<UserKey>77de120a-7704-49b1-8980-8f1e9ad65edd</UserKey>
<FirstName>zhang</FirstName>
<LastName>andy</LastName>
<MiddleName />
<Gender>Male</Gender>
<Birthday p2:nil="true" xmlns:p2="http://www.w3.org/2001/XMLSchema-instance" />
<AvatarCode />
<AvatarKey p2:nil="true" xmlns:p2="http://www.w3.org/2001/XMLSchema-instance" />
<ProgramKeyList />
<Overall />
<BirthLocation />
<Residence />
<BodyHeight>0</BodyHeight>
<MainDisease />
<OtherDisease>
<TimeBasedDiseaseItemOfDiseaseName>
<Time>1</Time>
<DiseaseItem>
<Key>15aabe2b-73af-426d-b668-b93fb84035ec</Key>
<CreatedStamp>2015-07-28T03:41:01.1260093Z</CreatedStamp>
<LastUpdatedStamp>2015-07-28T03:41:01.1260093Z</LastUpdatedStamp>
<State>Normal</State>
<ThirdPartyIdentity>542cb968-f806-46ee-9e9d-8ba5bdbf8da7</ThirdPartyIdentity>
<IsMain>false</IsMain>
<Name />
<CultureInfo>zh-cn</CultureInfo>
</DiseaseItem>
</TimeBasedDiseaseItemOfDiseaseName>
</OtherDisease>
<Symptoms />
<MedicalHistory />
<Infections />
<Allergies />
<FamilyHistory />
<SmokingHistory />
<DrinkingHistory />
<EmergencyContact />
<SurgeryHistory>
<SurgeryHistory>
<Key p4:nil="true" xmlns:p4="http://www.w3.org/2001/XMLSchema-instance" />
<CreatedStamp>2015-07-28T03:18:46.848Z</CreatedStamp>
<LastUpdatedStamp>2015-07-28T03:18:46.849Z</LastUpdatedStamp>
<State>Normal</State>
<SurgeryDate>2015-02-01T03:18:46.849Z</SurgeryDate>
<Surgery>
<Key>b259b887-ac76-4f01-a03d-afa1a8e238a2</Key>
<CreatedStamp>2015-07-28T03:18:41.685Z</CreatedStamp>
<LastUpdatedStamp>2015-07-28T03:18:41.688Z</LastUpdatedStamp>
<State>Normal</State>
<NameCN>肝移植</NameCN>
<NameEN>Liver Transplant</NameEN>
</Surgery>
</SurgeryHistory>
</SurgeryHistory>
<PatientLocation>
<Key p3:nil="true" xmlns:p3="http://www.w3.org/2001/XMLSchema-instance" />
<CreatedStamp>2015-07-28T03:18:46.845Z</CreatedStamp>
<LastUpdatedStamp>2015-07-28T03:18:46.847Z</LastUpdatedStamp>
<State>Normal</State>
<UserKey>77de120a-7704-49b1-8980-8f1e9ad65edd</UserKey>
<GeographyTierKey_Province>d4538110-24fc-4edd-9320-1f6b62b192fa</GeographyTierKey_Province>
<GeographyTierKey_City>a92c824c-512e-4d8b-812d-448b95546662</GeographyTierKey_City>
<Province>吉林省</Province>
<City>白城市</City>
</PatientLocation>
<DrugRemind>
<DrugRemind>
<Key>db9808b9-4957-47c6-99c1-92ca97548392</Key>
<CreatedStamp>2015-07-28T03:13:18.753Z</CreatedStamp>
<LastUpdatedStamp>2015-07-28T03:13:18.753Z</LastUpdatedStamp>
<State>Normal</State>
<TargetUserKey>77de120a-7704-49b1-8980-8f1e9ad65edd</TargetUserKey>
<DrugKey>00000000-0000-0000-0000-000000000000</DrugKey>
<BrandKey>00000000-0000-0000-0000-000000000000</BrandKey>
<DrugName>新山地明/普乐可复</DrugName>
<BrandName>新山地明/普乐可复</BrandName>
<BoxSize>0</BoxSize>
<Unit>;2-6 mg</Unit>
<Amount>1</Amount>
<DoseStrength>0</DoseStrength>
<DoseStrengthWithUnit>2-6 mg</DoseStrengthWithUnit>
<DoseTimePin>
<Recurrence>EveryHour</Recurrence>
<ReferenceStamps>
<dateTime>2000-01-01T00:00:00Z</dateTime>
<dateTime>2000-01-01T12:00:00Z</dateTime>
</ReferenceStamps>
<StartStamp>2014-08-22T00:00:00Z</StartStamp>
<EndStamp p5:nil="true" xmlns:p5="http://www.w3.org/2001/XMLSchema-instance" />
</DoseTimePin>
<CreatedBy>77de120a-7704-49b1-8980-8f1e9ad65edd</CreatedBy>
</DrugRemind>
<DrugRemind>
<Key>bb49ed53-b16f-4caa-882e-82dcdf8ce991</Key>
<CreatedStamp>2015-07-28T03:13:18.747Z</CreatedStamp>
<LastUpdatedStamp>2015-07-28T03:13:18.747Z</LastUpdatedStamp>
<State>Normal</State>
<TargetUserKey>77de120a-7704-49b1-8980-8f1e9ad65edd</TargetUserKey>
<DrugKey>00000000-0000-0000-0000-000000000000</DrugKey>
<BrandKey>00000000-0000-0000-0000-000000000000</BrandKey>
<DrugName>米芙/骁悉</DrugName>
<BrandName>米芙/骁悉</BrandName>
<BoxSize>0</BoxSize>
<Unit>;1080 mg</Unit>
<Amount>1</Amount>
<DoseStrength>0</DoseStrength>
<DoseStrengthWithUnit>1080 mg</DoseStrengthWithUnit>
<DoseTimePin>
<Recurrence>EveryHour</Recurrence>
<ReferenceStamps>
<dateTime>2000-01-01T00:00:00Z</dateTime>
<dateTime>2000-01-01T12:00:00Z</dateTime>
</ReferenceStamps>
<StartStamp>2014-08-22T00:00:00Z</StartStamp>
<EndStamp p5:nil="true" xmlns:p5="http://www.w3.org/2001/XMLSchema-instance" />
</DoseTimePin>
<CreatedBy>77de120a-7704-49b1-8980-8f1e9ad65edd</CreatedBy>
</DrugRemind>
</DrugRemind>
</PatientProfile>
</DataXml>
</AuditItem>
</Audits>' --declare @GeographyTierKey_Province varchar(100)
-- select @GeographyTierKey_Province=@x.value('(Audits/AuditItem/DataXml/PatientProfile/PatientLocation/GeographyTierKey_Province)[0]','varchar(100)') -- print @GeographyTierKey_Province declare @GeographyTierKey_Province varchar(100)
--select @GeographyTierKey_Province=@x.value('(Audits/AuditItem/DataXml/PatientProfile/PatientLocation/GeographyTierKey_Province)[0]','varchar(100)') --print @GeographyTierKey_Province
select @GeographyTierKey_Province=(SELECT top 1 N.v.value('.','VARCHAR(100)') guidValue
--N.v.query('count(//guid)').value('.','VARCHAR(100)') [Count]
FROM @x.nodes('Audits/AuditItem/DataXml/PatientProfile/PatientLocation/GeographyTierKey_Province')N(v) ) select @GeographyTierKey_Province
-- d4538110-24fc-4edd-9320-1f6b62b192fa
来源：
SQL特殊语句的笔记
http://www.2cto.com/database/201205/133329.html
说明，使用 openxml后。一定要记得用 sp_xml_removedocument 释放xml document资源。
(结束)
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