SQL SERVER 将XML变量转为JSON文本

废话不多说了，直接给大家贴代码了。

-- create function
create function [dbo].[fnxmltojson] (@xmldata xml)
returns nvarchar(max)
as
begin
return
(select stuff( 
(select
*
from 
(select
',{'+ 
stuff(
(select
',"'+
coalesce(b.c.value('local-name(.)', 'nvarchar(max)'),'')+'":"'+ b.c.value('text()[]','nvarchar(max)') +'"'
from x.a.nodes('*') b(c) for xml path(''),type).value('(./text())[]','nvarchar(max)'),,,'')
+'}'
from @xmldata.nodes('/root/*') x(a)) json(theline) 
for xml path(''),type).value('.','nvarchar(max)' )
,,,''));
end;
go
-- test table and data
create table [dbo].[pivotexample]
(
[country] [nvarchar]() null
,[year] [smallint] not null
,[salesamount] [money] null
)
on
[primary];
insert into [dbo].[pivotexample]values('australia', , .);
insert into [dbo].[pivotexample]values('germany', , .);
insert into [dbo].[pivotexample]values('united states', , .);
insert into [dbo].[pivotexample]values('france', , .);
declare @xml xml;
set @xml=(select top * from [dbo].[pivotexample] for xml path, root);
select dbo.fnxmltojson(@xml);
--return string
{"country":"australia","year":"","salesamount":"."},
{"country":"germany","year":"","salesamount":"."},
{"country":"united states","year":"","salesamount":"."},
{"country":"france","year":"2008","salesamount":"922179.0400"}