* | select a, count(1) from log, unnest( cast( json_parse(array_column) as array(bigint) ) ) as t(a) group by a 遍历Map 遍历Map中的元素 * | select map_column , a,b from log, unnest( cast( json_parse(map_column) as map(varchar, bigint) ) ) as t(a,b) 按照Map的key进...
* toPrint:[JsonObjectVO(uuid=aebd390d-f543-4410-9c3a-98f2cb057757, name=1), JsonObjectVO(uuid=d170bb12-7570-47dd-8f2d-9ec2df5573c5, name=2)] * */ List<JsonObjectVO> aList = JSONObject.parseArray(JSONObject.toJSONString(data),JsonObjectVO.class); /** * 4、将String对象转化...
IFSUBSTRING(@json,@nextopendelimiter,1)='{'SELECT@nextclosedelimiterChar='}',@type='object';ELSESELECT@nextclosedelimiterChar=']',@type='array';SET@opendelimiter=@nextopendelimiter;END/* and parse out the list or name/value pairs */SET@contents=SUBSTRING(@json,@opendelimiter+1,@nextclosed...
bracket found in the JSON string@TypeNVARCHAR(10),--whether it denotes an object or an array@NextCloseDelimiterCharCHAR(1),--either a '}' or a ']'@ContentsNVARCHAR(MAX),--the unparsed contents of the bracketed expression@StartINT,--index of the start of the token that you are parsing...
对SQL Server表中的parse列使用JSON_值 sql json sql-server tsql 我以前从未在SQL Server中使用过JSON,所以我需要一些帮助。 我写了一段简单的代码: DECLARE @json NVARCHAR(4000) SET @json = N'{ "id":"40476", "tags":[ { "id":"5f5883", }, { "id":"5fc8", } ], "type":"student",...
IF SUBSTRING(@json, @NextOpenDelimiter, 1)='{'SELECT @NextCloseDelimiterChar='}', @type='object'ELSESELECT @NextCloseDelimiterChar=']', @type='array'SELECT @OpenDelimiter=@NextOpenDelimiterEND---and parse out the list or name/value pairsSELECT@contents=SUBSTRING(@json, @OpenDelimiter+1,@...
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(...
使用mssql解析JSON数组字符串可以通过以下步骤实现: 1. 首先,确保你的数据库中已经安装了JSON函数。在SQL Server 2016及更高版本中,JSON函数是默认安装的,无需额外操作。...
Is an optional JSON path expression that references an object or an array withinjsonExpression.OPENJSONseeks into the JSON text at the specified position and parses only the referenced fragment. For more info, seeJSON Path Expressions (SQL Server). ...
JSON_QUERY Extracts an object or an array from a JSON string. JSON_VALUE Extracts a scalar value from a JSON string. OPENJSON Parses JSON text and returns objects and properties from the JSON input as rows and columns. For more info about the built-in support for JSON in SQL Server, se...