在TSQL中parsingJSON
是否有可能在TSQLparsingJSON？ 我不是说要创build一个JSONstring，我的意思是parsing一个JSONstring作为参数传入。
更新：从SQL Server 2016 parsingTSQL中的JSON现在是可能的 。
本地，没有支持。 你将不得不使用CLR。 就像这样简单，除非你有一个巨大的受虐狂的条纹，并希望在SQL中编写一个JSONparsing器
通常情况下，民众要求从DB的JSON输出，并在互联网上有例子。 但成一个数据库？
我似乎有一个巨大的受虐狂的条纹，我写了一个JSONparsing器。 它将一个JSON文档转换成一个SQL Adjacency列表，这个列表很容易用来更新你的数据表。 实际上，我做得更糟了，因为我已经完成了代码来完成相反的过程，即从层次结构表转换为JSONstring
文章和代码在这里： 在SQL服务器中使用Jsonstring 。
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" } } } ')要得到：
最后，SQL Server 2016将添加本地JSON支持！
参考：
SQL Server 2016的其他function包括：
- 行级安全和dynamic数据屏蔽的其他安全性增强function可以使我们的安全投资尽善尽美
encryption。- 对AlwaysOn的改进，使多个同步副本和次要负载实现更强大的可用性和灾难恢复
平衡。- 原生JSON支持为您的多种types的数据提供更好的性能和支持。
- SQL Server企业信息pipe理（EIM）工具和Analysis Services在性能，可用性和可伸缩性方面得到升级。
- 更快速的混合备份，高可用性和灾难恢复scheme可将您的本地数据库备份和还原到Azure
并将您的SQL Server AlwaysOn副本放在Azure中。
公告： http : //blogs.technet.com/b/dataplatforminsider/archive/2015/05/04/sql-server-2016-public-preview-coming-this-summer.aspx
function博客文章： http : //blogs.msdn.com/b/jocapc/archive/2015/05/16/json-support-in-sql-server-2016.aspx
我也有一个巨大的受虐狂的条纹，因为我已经写了另一个JSONparsing器。 这一个使用程序方法。 它使用类似的SQL层次结构列表来存储parsing的数据。 在包中还有：
- 逆向过程：从层次结构到JSON
- 查询函数：从JSON对象中获取特定的值
请随意使用，并享受它
http://www.codeproject.com/Articles/1000953/JSON-for-Sql-Server-Part
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) collate SQL_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 collate SQL_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 collate SQL_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+' ' collate SQL_Latin1_General_CP850_Bin) +1 SELECT @start=PATINDEX('%[^A-Za-z0-9@+.e][A-Za-z0-9@+.e]%', ' '+@contents collate SQL_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
— Pase JSON
Declare @pars varchar(MAX) = ' {"shapes":[{"type":"polygon","geofenceName":"","geofenceDescription":"", "geofenceCategory":"1","color":"#1E90FF","paths":[{"path":[{ "lat":"26.096254906968525","lon":"65.709228515625"} ,{"lat":"28.38173504322308","lon":"66.741943359375"} ,{"lat":"26.765230565697482","lon":"68.983154296875"} ,{"lat":"26.254009699865737","lon":"68.609619140625"} ,{"lat":"25.997549919572112","lon":"68.104248046875"} ,{"lat":"26.843677401113002","lon":"67.115478515625"} ,{"lat":"25.363882272740255","lon":"65.819091796875"}]}]}]}' Select * from parseJSON(@pars) AS MyResult
现在在SQL Server（CTP3）中有一个本地支持，用于在T-SQL中导入，导出，查询和validationJSON请参阅https://msdn.microsoft.com/zh-cn/library/dn921897.aspx
SQL Server 2016支持使用OPENJSON json dataparsing。 您可以使用OPENJSON将json data映射到行和列。
你的json Data
[ { "id" : 2,"name": "John"}, { "id" : 5,"name": "John"} ]
这里是你如何在sql中处理json
//@pJson is json data passed from code. INSERT INTO YourTable (id, Name) SELECT id, name FROM OPENJSON(@pJson) WITH (id int, name nvarchar(max))
这里是一个详细的文章，涵盖了这个话题。
我已经看到一个相当整洁的文章…所以如果你喜欢这个：
CREATE PROC [dbo].[spUpdateMarks] @inputJSON VARCHAR(MAX) -- '[{"ID":"1","C":"60","CPP":"60","CS":"60"}]' AS BEGIN -- Temp table to hold the parsed data DECLARE @TempTableVariable TABLE( element_id INT, sequenceNo INT, parent_ID INT, [Object_ID] INT, [NAME] NVARCHAR(2000), StringValue NVARCHAR(MAX), ValueType NVARCHAR(10) ) -- Parse JSON string into a temp table INSERT INTO @TempTableVariable SELECT * FROM parseJSON(@inputJSON) END
试着看看这里：
https://www.simple-talk.com/sql/t-sql-programming/consuming-json-strings-in-sql-server/
这里有一个完整的ASP.Net项目： http : //www.codeproject.com/Articles/788208/Update-Multiple-Rows-of-GridView-using-JSON-in-ASP
