在设计核心模块时,我们需要考虑到JSON到SQL的转换过程。通过一个类图可以清楚地看到各个模块之间的关系。 JSONParser+parse(jsonString)SQLLoader+loadToSQL(data)DataProcessor+process(data) 在这一结构中,JSONParser负责解析JSON字符串,DataProcessor进行数据处理,
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 ,-...
/* firstly we process all strings. This is done because [{} and ] aren't escaped in strings, which complicates an iterative parse. */ WHILE 1 = 1 /* forever until there is nothing more to do */ BEGIN SET @start = PATINDEX('%[^a-zA-Z]["]%', @json collate SQL_Latin1_Gener...
The OPENJSON rowset function converts JSON text into a set of rows and columns. After you transform a JSON collection into a rowset with OPENJSON, you can run any SQL query on the returned data or insert it into a SQL Server table. For more information about working ...
不建议在sql中使用json,但是json在sql中确实有很多灵活的使用,尤其是复杂查询,记录一下常见的使用情况 16版本下支持json SQL Server 2016开始支持JSON数据类型,现在很多还是没有升级到这个版本,为了支持json,需要自己定义json处理函数 附上处理json的函数 CREATEFUNCTION[dbo].[ParseJSON](@jsonnvarchar(max) )RETURNS@...
[转]在SqlServer中解析JSON数据CREATE FUNCTION dbo . parseJSON ( @JSON NVARCHAR ( MAX )) RETURNS @hierarchy TABLE ( element_id INT IDENTITY ( 1 , 1 ) NOT NULL, /* internal surrogate primary key give
JSONCopy [ {"name":"John","skills": ["SQL","C#","Azure"] }, {"name":"Jane","surname":"Doe"} ] By using SQL Server built-in functions and operators, you can do the following things with JSON text: Parse JSON text and read or modify values. ...
import sqlparse 接下来,你可以使用sqlparse.parse方法解析SQL查询语句,并使用sqlparse库中的相关方法提取where子句的JSON表示。下面是一个示例代码: 代码语言:txt 复制 import sqlparse query = "SELECT * FROM table WHERE column1 = 'value' AND column2 > 100" # 解析SQL查询语句 parsed = sqlparse.parse...
3403ErrorGetKeyByNameNoResponseCannot get the key by name due to no response from server. 3404ErrorGetKeyByNameJsonParserCannot get the key by name due to failed to parse the JSON response. 3405ErrorGetKeyByNameExtractKeyNodeCannot get the key by n...
(0); string jsonDetails = reader.GetString(1); // 解析JSON数据 JObject detailsObject = JObject.Parse(jsonDetails); Console.WriteLine($"Product ID: {productID}"); Console.WriteLine($"Name: {detailsObject["Name"]}"); Console.WriteLine($"Price: {detailsObject["Price"]}"); Console....