Select * from parseJSON('{

  "联系人":

  {

     "姓名": "huang",

     "网名": "HTL",

     "AGE": ,

     "男人":true

  }

}

')

 WHERE name='姓名'

 

"The best thing about XML is what it shares with JSON, being human readable. That turns out to be important, not because people should be reading it, because we shouldn't, but because it avoids interoperability problems caused by fussy binary encoding issues.

Beyond that, there is not much to like. It is not very good as a data format. And it is not very good as a document format. If it were a good document format, then wikis would use it."

Doug Crockford March 2010

Select * from parseJSON('{

"Person":

{

"firstName": "John",

"lastName": "Smith",

"age": 25,

"Address":

{

"streetAddress":"21 2nd Street",

"city":"New York",

"state":"NY",

"postalCode":"10021"

},

"PhoneNumbers":

{

"home":"212 555-1234",

"fax":"646 555-4567"

}

}

}

')

DECLARE @MyHierarchy Hierarchy

INSERT INTO @myHierarchy

select * from parseJSON('{"menu": {

"id": "file",

"value": "File",

"popup": {

"menuitem": [

{"value": "New", "onclick": "CreateNewDoc()"},

{"value": "Open", "onclick": "OpenDoc()"},

{"value": "Close", "onclick": "CloseDoc()"}

]

}

}}')

SELECT dbo.ToJSON(@MyHierarchy)

{

"menu" :   {

"id" : "file",

"value" : "File",

"popup" :   {

"menuitem" :   [

{

"value" : "New",

"onclick" : "CreateNewDoc()"

},

{

"value" : "Open",

"onclick" : "OpenDoc()"

},

{

"value" : "Close",

"onclick" : "CloseDoc()"

}

]

}

}

}

CREATE FUNCTION dbo.parseJSON( @JSON NVARCHAR(MAX))

RETURNS @hierarchy TABLE

(

element_id INT IDENTITY(1, 1) NOT NULL, /* internal surrogate primary key gives the order of parsing and the list order */

sequenceNo [int] NULL, /* the place in the sequence for the element */

parent_ID INT,/* if the element has a parent then it is in this column. The document is the ultimate parent, so you can get the structure from recursing from the document */

Object_ID INT,/* each list or object has an object id. This ties all elements to a parent. Lists are treated as objects here */

NAME NVARCHAR(2000),/* the name of the object */

StringValue NVARCHAR(MAX) NOT NULL,/*the string representation of the value of the element. */

ValueType VARCHAR(10) NOT null /* the declared type of the value represented as a string in StringValue*/

)

AS

BEGIN

DECLARE

@FirstObject INT, --the index of the first open bracket found in the JSON string

@OpenDelimiter INT,--the index of the next open bracket found in the JSON string

@NextOpenDelimiter INT,--the index of subsequent open bracket found in the JSON string

@NextCloseDelimiter INT,--the index of subsequent close bracket found in the JSON string

@Type NVARCHAR(10),--whether it denotes an object or an array

@NextCloseDelimiterChar CHAR(1),--either a '}' or a ']'

@Contents NVARCHAR(MAX), --the unparsed contents of the bracketed expression

@Start INT, --index of the start of the token that you are parsing

@end INT,--index of the end of the token that you are parsing

@param INT,--the parameter at the end of the next Object/Array token

@EndOfName INT,--the index of the start of the parameter at end of Object/Array token

@token NVARCHAR(200),--either a string or object

@value NVARCHAR(MAX), -- the value as a string

@SequenceNo int, -- the sequence number within a list

@name NVARCHAR(200), --the name as a string

@parent_ID INT,--the next parent ID to allocate

@lenJSON INT,--the current length of the JSON String

@characters NCHAR(36),--used to convert hex to decimal

@result BIGINT,--the value of the hex symbol being parsed

@index SMALLINT,--used for parsing the hex value

@Escape INT --the index of the next escape character

DECLARE @Strings TABLE /* in this temporary table we keep all strings, even the names of the elements, since they are 'escaped' in a different way, and may contain, unescaped, brackets denoting objects or lists. These are replaced in the JSON string by tokens representing the string */

(

String_ID INT IDENTITY(1, 1),

StringValue NVARCHAR(MAX)

)

SELECT--initialise the characters to convert hex to ascii

@characters='0123456789abcdefghijklmnopqrstuvwxyz',

@SequenceNo=0, --set the sequence no. to something sensible.

/* firstly we process all strings. This is done because [{} and ] aren't escaped in strings, which complicates an iterative parse. */

@parent_ID=0;

WHILE 1=1 --forever until there is nothing more to do

BEGIN

SELECT

@start=PATINDEX('%[^a-zA-Z]["]%', @json collate SQL_Latin1_General_CP850_Bin);--next delimited string

IF @start=0 BREAK --no more so drop through the WHILE loop

IF SUBSTRING(@json, @start+1, 1)='"'

BEGIN --Delimited Name

SET @start=@Start+1;

SET @end=PATINDEX('%[^\]["]%', RIGHT(@json, LEN(@json+'|')-@start) collateSQL_Latin1_General_CP850_Bin);

END

IF @end=0 --no end delimiter to last string

BREAK --no more

SELECT @token=SUBSTRING(@json, @start+1, @end-1)

--now put in the escaped control characters

SELECT @token=REPLACE(@token, FROMString, TOString)

FROM

(SELECT

'\"' AS FromString, '"' AS ToString

UNION ALL SELECT '\\', '\'

UNION ALL SELECT '\/', '/'

UNION ALL SELECT '\b', CHAR(08)

UNION ALL SELECT '\f', CHAR(12)

UNION ALL SELECT '\n', CHAR(10)

UNION ALL SELECT '\r', CHAR(13)

UNION ALL SELECT '\t', CHAR(09)

) substitutions

SELECT @result=0, @escape=1

--Begin to take out any hex escape codes

WHILE @escape>0

BEGIN

SELECT @index=0,

--find the next hex escape sequence

@escape=PATINDEX('%\x[0-9a-f][0-9a-f][0-9a-f][0-9a-f]%', @token collateSQL_Latin1_General_CP850_Bin)

IF @escape>0 --if there is one

BEGIN

WHILE @index<4 --there are always four digits to a \x sequence

BEGIN

SELECT --determine its value

@result=@result+POWER(16, @index)

*(CHARINDEX(SUBSTRING(@token, @escape+2+3-@index, 1),

@characters)-1), @index=@index+1 ;

END

-- and replace the hex sequence by its unicode value

SELECT @token=STUFF(@token, @escape, 6, NCHAR(@result))

END

END

--now store the string away

INSERT INTO @Strings (StringValue) SELECT @token

-- and replace the string with a token

SELECT @JSON=STUFF(@json, @start, @end+1,

'@string'+CONVERT(NVARCHAR(5), @@identity))

END

-- all strings are now removed. Now we find the first leaf.

WHILE 1=1  --forever until there is nothing more to do

BEGIN

SELECT @parent_ID=@parent_ID+1

--find the first object or list by looking for the open bracket

SELECT @FirstObject=PATINDEX('%[{[[]%', @json collate SQL_Latin1_General_CP850_Bin)--object or array

IF @FirstObject = 0 BREAK

IF (SUBSTRING(@json, @FirstObject, 1)='{')

SELECT @NextCloseDelimiterChar='}', @type='object'

ELSE

SELECT @NextCloseDelimiterChar=']', @type='array'

SELECT @OpenDelimiter=@firstObject

WHILE 1=1 --find the innermost object or list...

BEGIN

SELECT

@lenJSON=LEN(@JSON+'|')-1

--find the matching close-delimiter proceeding after the open-delimiter

SELECT

@NextCloseDelimiter=CHARINDEX(@NextCloseDelimiterChar, @json,

@OpenDelimiter+1)

--is there an intervening open-delimiter of either type

SELECT @NextOpenDelimiter=PATINDEX('%[{[[]%',

RIGHT(@json, @lenJSON-@OpenDelimiter)collate SQL_Latin1_General_CP850_Bin)--object

IF @NextOpenDelimiter=0

BREAK

SELECT @NextOpenDelimiter=@NextOpenDelimiter+@OpenDelimiter

IF @NextCloseDelimiter<@NextOpenDelimiter

BREAK

IF SUBSTRING(@json, @NextOpenDelimiter, 1)='{'

SELECT @NextCloseDelimiterChar='}', @type='object'

ELSE

SELECT @NextCloseDelimiterChar=']', @type='array'

SELECT @OpenDelimiter=@NextOpenDelimiter

END

---and parse out the list or name/value pairs

SELECT

@contents=SUBSTRING(@json, @OpenDelimiter+1,

@NextCloseDelimiter-@OpenDelimiter-1)

SELECT

@JSON=STUFF(@json, @OpenDelimiter,

@NextCloseDelimiter-@OpenDelimiter+1,

'@'+@type+CONVERT(NVARCHAR(5), @parent_ID))

WHILE (PATINDEX('%[A-Za-z0-9@+.e]%', @contents collate SQL_Latin1_General_CP850_Bin))<>0

BEGIN

IF @Type='Object' --it will be a 0-n list containing a string followed by a string, number,boolean, or null

BEGIN

SELECT

@SequenceNo=0,@end=CHARINDEX(':', ' '+@contents)--if there is anything, it will be a string-based name.

SELECT  @start=PATINDEX('%[^A-Za-z@][@]%', ' '+@contents collateSQL_Latin1_General_CP850_Bin)--AAAAAAAA

SELECT @token=SUBSTRING(' '+@contents, @start+1, @End-@Start-1),

@endofname=PATINDEX('%[0-9]%', @token collate SQL_Latin1_General_CP850_Bin),

@param=RIGHT(@token, LEN(@token)-@endofname+1)

SELECT

@token=LEFT(@token, @endofname-1),

@Contents=RIGHT(' '+@contents, LEN(' '+@contents+'|')-@end-1)

SELECT  @name=stringvalue FROM @strings

WHERE string_id=@param --fetch the name

END

ELSE

SELECT @Name=null,@SequenceNo=@SequenceNo+1

SELECT

@end=CHARINDEX(',', @contents)-- a string-token, object-token, list-token, number,boolean, or null

IF @end=0

SELECT  @end=PATINDEX('%[A-Za-z0-9@+.e][^A-Za-z0-9@+.e]%', @Contents+' ' collateSQL_Latin1_General_CP850_Bin)

+1

SELECT

@start=PATINDEX('%[^A-Za-z0-9@+.e][A-Za-z0-9@+.e]%', ' '+@contents collateSQL_Latin1_General_CP850_Bin)

--select @start,@end, LEN(@contents+'|'), @contents

SELECT

@Value=RTRIM(SUBSTRING(@contents, @start, @End-@Start)),

@Contents=RIGHT(@contents+' ', LEN(@contents+'|')-@end)

IF SUBSTRING(@value, 1, 7)='@object'

INSERT INTO @hierarchy

(NAME, SequenceNo, parent_ID, StringValue, Object_ID, ValueType)

SELECT @name, @SequenceNo, @parent_ID, SUBSTRING(@value, 8, 5),

SUBSTRING(@value, 8, 5), 'object'

ELSE

IF SUBSTRING(@value, 1, 6)='@array'

INSERT INTO @hierarchy

(NAME, SequenceNo, parent_ID, StringValue, Object_ID, ValueType)

SELECT @name, @SequenceNo, @parent_ID, SUBSTRING(@value, 7, 5),

SUBSTRING(@value, 7, 5), 'array'

ELSE

IF SUBSTRING(@value, 1, 7)='@string'

INSERT INTO @hierarchy

(NAME, SequenceNo, parent_ID, StringValue, ValueType)

SELECT @name, @SequenceNo, @parent_ID, stringvalue, 'string'

FROM @strings

WHERE string_id=SUBSTRING(@value, 8, 5)

ELSE

IF @value IN ('true', 'false')

INSERT INTO @hierarchy

(NAME, SequenceNo, parent_ID, StringValue, ValueType)

SELECT @name, @SequenceNo, @parent_ID, @value, 'boolean'

ELSE

IF @value='null'

INSERT INTO @hierarchy

(NAME, SequenceNo, parent_ID, StringValue, ValueType)

SELECT @name, @SequenceNo, @parent_ID, @value, 'null'

ELSE

IF PATINDEX('%[^0-9]%', @value collate SQL_Latin1_General_CP850_Bin)>0

INSERT INTO @hierarchy

(NAME, SequenceNo, parent_ID, StringValue, ValueType)

SELECT @name, @SequenceNo, @parent_ID, @value, 'real'

ELSE

INSERT INTO @hierarchy

(NAME, SequenceNo, parent_ID, StringValue, ValueType)

SELECT @name, @SequenceNo, @parent_ID, @value, 'int'

if @Contents=' ' Select @SequenceNo=0

END

END

INSERT INTO @hierarchy (NAME, SequenceNo, parent_ID, StringValue, Object_ID, ValueType)

SELECT '-',1, NULL, '', @parent_id-1, @type

--

RETURN

END

GO

-- Create the data type

IF EXISTS (SELECT * FROM sys.types WHERE name LIKE 'Hierarchy')

DROP TYPE dbo.Hierarchy

go

CREATE TYPE dbo.Hierarchy AS TABLE

(

element_id INT NOT NULL, /* internal surrogate primary key gives the order of parsing and the list order */

sequenceNo [int] NULL, /* the place in the sequence for the element */

parent_ID INT,/* if the element has a parent then it is in this column. The document is the ultimate parent, so you can get the structure from recursing from the document */

[Object_ID] INT,/* each list or object has an object id. This ties all elements to a parent. Lists are treated as objects here */

NAME NVARCHAR(2000),/* the name of the object, null if it hasn't got one */

StringValue NVARCHAR(MAX) NOT NULL,/*the string representation of the value of the element. */

ValueType VARCHAR(10) NOT null /* the declared type of the value represented as a string in StringValue*/

PRIMARY KEY (element_id)

)

IF OBJECT_ID (N'dbo.parseJSON') IS NOT NULL

DROP FUNCTION dbo.JSONEscaped

GO

CREATE FUNCTION JSONEscaped ( /* this is a simple utility function that takes a SQL String with all its clobber and outputs it as a sting with all the JSON escape sequences in it.*/

@Unescaped NVARCHAR(MAX) --a string with maybe characters that will break json

)

RETURNS NVARCHAR(MAX)

AS

BEGIN

SELECT  @Unescaped = REPLACE(@Unescaped, FROMString, TOString)

FROM    (SELECT

'\"' AS FromString, '"' AS ToString

UNION ALL SELECT '\', '\\'

UNION ALL SELECT '/', '\/'

UNION ALL SELECT  CHAR(08),'\b'

UNION ALL SELECT  CHAR(12),'\f'

UNION ALL SELECT  CHAR(10),'\n'

UNION ALL SELECT  CHAR(13),'\r'

UNION ALL SELECT  CHAR(09),'\t'

) substitutions

RETURN @Unescaped

END

CREATE FUNCTION ToJSON

(

@Hierarchy Hierarchy READONLY

)

/*

the function that takes a Hierarchy table and converts it to a JSON string

Author: Phil Factor

Revision: 1.5

date: 1 May 2014

why: Added a fix to add a name for a list.

example:

Declare @XMLSample XML

Select @XMLSample='

<glossary><title>example glossary</title>

<GlossDiv><title>S</title>

<GlossList>

<GlossEntry ID="SGML" SortAs="SGML">

<GlossTerm>Standard Generalized Markup Language</GlossTerm>

<Acronym>SGML</Acronym>

<Abbrev>ISO 8879:1986</Abbrev>

<GlossDef>

<para>A meta-markup language, used to create markup languages such as DocBook.</para>

<GlossSeeAlso OtherTerm="GML" />

<GlossSeeAlso OtherTerm="XML" />

</GlossDef>

<GlossSee OtherTerm="markup" />

</GlossEntry>

</GlossList>

</GlossDiv>

</glossary>'

DECLARE @MyHierarchy Hierarchy -- to pass the hierarchy table around

insert into @MyHierarchy select * from dbo.ParseXML(@XMLSample)

SELECT dbo.ToJSON(@MyHierarchy)

*/

RETURNS NVARCHAR(MAX)--JSON documents are always unicode.

AS

BEGIN

DECLARE

@JSON NVARCHAR(MAX),

@NewJSON NVARCHAR(MAX),

@Where INT,

@ANumber INT,

@notNumber INT,

@indent INT,

@ii int,

@CrLf CHAR(2)--just a simple utility to save typing!

--firstly get the root token into place

SELECT @CrLf=CHAR(13)+CHAR(10),--just CHAR(10) in UNIX

@JSON = CASE ValueType WHEN 'array' THEN

+COALESCE('{'+@CrLf+'  "'+NAME+'" : ','')+'['

ELSE '{' END

+@CrLf

+ case when ValueType='array' and NAME is not null then '  ' else '' end

+ '@Object'+CONVERT(VARCHAR(5),OBJECT_ID)

+@CrLf+CASE ValueType WHEN 'array' THEN

case when NAME is null then ']' else '  ]'+@CrLf+'}'+@CrLf end

ELSE '}' END

FROM @Hierarchy

WHERE parent_id IS NULL AND valueType IN ('object','document','array') --get the root element

/* now we simply iterat from the root token growing each branch and leaf in each iteration. This won't be enormously quick, but it is simple to do. All values, or name/value pairs withing a structure can be created in one SQL Statement*/

Select @ii=1000

WHILE @ii>0

begin

SELECT @where= PATINDEX('%[^[a-zA-Z0-9]@Object%',@json)--find NEXT token

if @where=0 BREAK

/* this is slightly painful. we get the indent of the object we've found by looking backwards up the string */

SET@indent=CHARINDEX(char(10)+char(13),Reverse(LEFT(@json,@where))+char(10)+char(13))-1

SET @NotNumber= PATINDEX('%[^0-9]%', RIGHT(@json,LEN(@JSON+'|')-@Where-8)+' ')--find NEXT token

SET @NewJSON=NULL --this contains the structure in its JSON form

SELECT

@NewJSON=COALESCE(@NewJSON+','+@CrLf+SPACE(@indent),'')

+case when parent.ValueType='array' then '' else COALESCE('"'+TheRow.NAME+'" : ','') end

+CASE TheRow.valuetype

WHEN 'array' THEN '  ['+@CrLf+SPACE(@indent+2)

+'@Object'+CONVERT(VARCHAR(5),TheRow.[OBJECT_ID])+@CrLf+SPACE(@indent+2)+']'

WHEN 'object' then '  {'+@CrLf+SPACE(@indent+2)

+'@Object'+CONVERT(VARCHAR(5),TheRow.[OBJECT_ID])+@CrLf+SPACE(@indent+2)+'}'

WHEN 'string' THEN '"'+dbo.JSONEscaped(TheRow.StringValue)+'"'

ELSE TheRow.StringValue

END

FROM @Hierarchy TheRow

inner join @hierarchy Parent

on parent.element_ID=TheRow.parent_ID

WHERE TheRow.parent_id= SUBSTRING(@JSON,@where+8, @Notnumber-1)

/* basically, we just lookup the structure based on the ID that is appended to the @Object token. Simple eh? */

--now we replace the token with the structure, maybe with more tokens in it.

Select @JSON=STUFF (@JSON, @where+1, 8+@NotNumber-1, @NewJSON),@ii=@ii-1

end

return @JSON

end

go

IF OBJECT_ID (N'dbo.ToXML') IS NOT NULL

DROP FUNCTION dbo.ToXML

GO

CREATE FUNCTION ToXML

(

/*this function converts a Hierarchy table into an XML document. This uses the same technique as the toJSON function, and uses the 'entities' form of XML syntax to give a compact rendering of the structure */

@Hierarchy Hierarchy READONLY

)

RETURNS NVARCHAR(MAX)--use unicode.

AS

BEGIN

DECLARE

@XMLAsString NVARCHAR(MAX),

@NewXML NVARCHAR(MAX),

@Entities NVARCHAR(MAX),

@Objects NVARCHAR(MAX),

@Name NVARCHAR(200),

@Where INT,

@ANumber INT,

@notNumber INT,

@indent INT,

@CrLf CHAR(2)--just a simple utility to save typing!

--firstly get the root token into place

--firstly get the root token into place

SELECT @CrLf=CHAR(13)+CHAR(10),--just CHAR(10) in UNIX

@XMLasString ='<?xml version="1.0" ?>

@Object'+CONVERT(VARCHAR(5),OBJECT_ID)+'

'

FROM @hierarchy

WHERE parent_id IS NULL AND valueType IN ('object','array') --get the root element

/* now we simply iterate from the root token growing each branch and leaf in each iteration. This won't be enormously quick, but it is simple to do. All values, or name/value pairs within a structure can be created in one SQL Statement*/

WHILE 1=1

begin

SELECT @where= PATINDEX('%[^a-zA-Z0-9]@Object%',@XMLAsString)--find NEXT token

if @where=0 BREAK

/* this is slightly painful. we get the indent of the object we've found by looking backwards up the string */

SET@indent=CHARINDEX(char(10)+char(13),Reverse(LEFT(@XMLasString,@where))+char(10)+char(13))-1

SET @NotNumber= PATINDEX('%[^0-9]%', RIGHT(@XMLasString,LEN(@XMLAsString+'|')-@Where-8)+' ')--find NEXT token

SET @Entities=NULL --this contains the structure in its XML form

SELECT @Entities=COALESCE(@Entities+' ',' ')+NAME+'="'

+REPLACE(REPLACE(REPLACE(StringValue, '<', '&lt;'), '&', '&amp;'),'>', '&gt;')

+ '"'

FROM @hierarchy

WHERE parent_id= SUBSTRING(@XMLasString,@where+8, @Notnumber-1)

AND ValueType NOT IN ('array', 'object')

SELECT @Entities=COALESCE(@entities,''),@Objects='',@name=CASE WHEN Name='-' THEN'root' ELSE NAME end

FROM @hierarchy

WHERE [Object_id]= SUBSTRING(@XMLasString,@where+8, @Notnumber-1)

SELECT  @Objects=@Objects+@CrLf+SPACE(@indent+2)

+'@Object'+CONVERT(VARCHAR(5),OBJECT_ID)

--+@CrLf+SPACE(@indent+2)+''

FROM @hierarchy

WHERE parent_id= SUBSTRING(@XMLasString,@where+8, @Notnumber-1)

AND ValueType IN ('array', 'object')

IF @Objects='' --if it is a lef, we can do a more compact rendering

SELECT @NewXML='<'+COALESCE(@name,'item')+@entities+' />'

ELSE

SELECT @NewXML='<'+COALESCE(@name,'item')+@entities+'>'

+@Objects+@CrLf++SPACE(@indent)+'</'+COALESCE(@name,'item')+'>'

/* basically, we just lookup the structure based on the ID that is appended to the @Object token. Simple eh? */

--now we replace the token with the structure, maybe with more tokens in it.

Select @XMLasString=STUFF (@XMLasString, @where+1, 8+@NotNumber-1, @NewXML)

end

return @XMLasString

end

DECLARE @MyHierarchy Hierarchy,@xml XML

INSERT INTO @myHierarchy

select * from parseJSON('{"menu": {

"id": "file",

"value": "File",

"popup": {

"menuitem": [

{"value": "New", "onclick": "CreateNewDoc()"},

{"value": "Open", "onclick": "OpenDoc()"},

{"value": "Close", "onclick": "CloseDoc()"}

]

}

}}')

SELECT dbo.ToXML(@MyHierarchy)

SELECT @XML=dbo.ToXML(@MyHierarchy)

SELECT @XML

<?xml version="1.0" ?>

<root>

<menu id="file" value="File">

<popup>

<menuitem>

<item value="New" onclick="CreateNewDoc()" />

<item value="Open" onclick="OpenDoc()" />

<item value="Close" onclick="CloseDoc()" />

</menuitem>

</popup>

</menu>

</root>

(1 row(s) affected)

<root><menu id="file" value="File"><popup><menuitem><item value="New" onclick="CreateNewDoc()" /><item value="Open" onclick="OpenDoc()" /><item value="Close" onclick="CloseDoc()" /></menuitem></popup></menu></root>

(1 row(s) affected)