我需要从具有 JSON 格式的列中提取值。 这是该列的表中行之一的示例,这里有两个 operatorKeys,但在其他行中可能有更多:
{
"officeId": "office8685",
"TypeOfOffice": null,
"Telefonnummer": "",
"Operatorer": [
{
"OperatorKey": "1",
"OperatorUserID": {
"Agency": "Other",
"AgencySpecified": true,
"Value": "TM-Oper-1"
},
"ContactInformation": {
"FirstName": "mike",
"LastName": null,
"Address": {
"Street": null,
"City": null,
"Province": null,
"Country": null
},
"Phone": null,
"Fax": null,
"Email": null,
}
},
{
"OperatorKey": "4",
"OperatorUserID": {
"Agency": "Other",
"AgencySpecified": true,
"Value": "TM-Oper-4"
},
"ContactInformation": {
"FirstName": "xxx",
"LastName": null,
"Address": {
"Street": null,
"City": null,
"Province": null,
"Country": null
},
"Phone": null,
"Fax": null,
"Email": null,
}
}
]
}
这是我尝试读取 JSON 的 SQL 视图,我使用 openjson
和 cross apply
读取值:
Alter view dbo.vOffice as
select
column1,column2
--,column3 --this column contains values with json format
,OfficId,TypeOfOffice,Telefonnummer,Operatorer,OperatorKey,OperatorUserID
,ContactInformation,Agency,AgencySpecified,[Value],FirstName,LastName
,[Address],Phone, Fax, Email
FROM [produktion_dim].[VirkesverdeStandardSCD1]
CROSS APPLY OPENJSON (column3,'$.OfficId') with (
OfficId varchar(4096) '$.OfficId',TypeOfOffice varchar(4096) '$.TypeOfOffice',
Telefonnummer varchar(4096) '$.Telefonnummer',Operatorer varchar(4096) '$.Operatorer')
cross apply openjson(Operatorer, '$') with(OperatorKey varchar(4096) '$.OperatorKey', OperatorUserID varchar(4096) '$.OperatorUserID', ContactInformation varchar(4096) '$.ContactInformation')
cross apply openjson(OperatorUserID,'$') with ( Agency varchar(4096) '$.Agency',
AgencySpecified varchar(4096) '$.AgencySpecified',[Value] varchar(4096) '$.Value' )
cross apply openjson( ContactInformation, '$') with (FirstName varchar(4096) '$.FirstName',LastName varchar(4096) '$.LastName',[Address] varchar(4096) '$.Address',Phone varchar(4096) '$.Phone',Fax varchar(4096) '$.Fax',Email varchar(4096) '$.Email')
cross apply openjson([Address],'$') with ( Street varchar(4096) '$.Street',
City varchar(4096) '$.City',Province varchar(4096) '$.Province',Country varchar(4096) '$.Country')
但是我遇到了错误。您能告诉我 SQL 视图中缺少什么或应该更改什么吗?
答案 0 :(得分:0)
一旦您可以组织发送者以发送正确格式的 JSON 数据,这里有一些技巧可以帮助您解析 JSON 数据:
'$'
中的 openjson(something, '$') with (...)
是多余的,只需使用 openjson(something) with (...)
$.officeId
与 $. OfficeId
不同,两者都不匹配 '$.OfficId'
。with (...)
中声明一个列要被另一个 openjson()
调用使用时,它需要使用类型 nvarchar(max)
并在其定义中包含 as json
,例如:{{ 1}}。我已编辑您的查询以提取我认为您正在寻找的 JSON 数据...
OperatorUserID nvarchar(max) '$.OperatorUserID' as json