Run the following query to create a table with highly nested data. The examples in this article all reference this table. Copy SQL CREATE TABLE store_data AS SELECT '{ "store":{ "fruit": [ {"weight":8,"type":"apple"}, {"weight":9,"type":"pear"} ], "basket":[ [1,2,{"b"...
selectnew{StudentID=s.StudentID,Name=s.Name,Hometown=s.Hometown,Gender=s.Gender,Brithday=s.Birthday,ClassID=s.ClassID,Weight=s.Weight,Height=s.Height,Desc=s.Desc};foreach(variteminquery){Student student=newStudent{StudentID=item.StudentID,Name=item.Name,Hometown=item.Hometown,Gender=item.Gend...
double()依据目标 JSON 类型(STRING/NUMBER)转换为 SQL 中BINARY DOUBLE数字类型。 type()目标数据的 JSON 数据类型的名称: "null" 表示值为 null。 "boolean" 表示布尔值(true 或 false)。 "number" 表示数字。 "string" 表示字符串。 "array" 表示数组。
sqlInListExpr.getExpr(); String fieldName = sqlIdentifierExpr.getName(); List<Object> values = sqlInListExpr.getTargetList().stream().map(this::getValue).collect(Collectors.toList()); JSONDefaultSelect matchSelect = JSONSelectFactory.match(values); return jsonSelectSyntax.and(sqlInListExpr....
下面的示例演示如何在 C# 客户端应用中将查询的 JSON 输出检索到 StringBuilder 对象中。 假设变量queryWithForJson包含带有 FOR JSON 子句的 SELECT 语句的文本。 C# varqueryWithForJson ="SELECT ... FOR JSON";using(varconn =newSqlConnection("<connection string>")) {using(varcm...
In this sample JSON text, data members "a" and "c" are string values, while data member "b" is an array.JSON_VALUEandJSON_QUERYreturn the following results: PathJSON_VALUEreturnsJSON_QUERYreturns $NULLor error{ "a": "[1,2]", "b": [1, 2], "c": "hi" } ...
*/ public synchronized boolean next(LongWritable key, Text value) throws IOException { while (getFilePosition() <= end) { key.set(pos); int newSize = in.readLine(value, maxLineLength, Math.max(maxBytesToConsume(pos), maxLineLength)); String str = value.toString().replaceAll("\\|\\|",...
"reason": "$string:reason", "usedScene": { "abilities": [ "FormAbility" ], "when": "inuse" } } ] } } module.json5配置文件包含以下标签。 表1 module.json5配置文件配置标签说明 属性名称 含义 数据类型 是否可缺省 name 标识当前Module的名称,标签值采用字符串表示(最大长度31个字节),...
In lax mode,JSON_QUERYreturns null. In strict mode,JSON_QUERYreturns an error. Remarks Lax mode and strict mode Consider the following JSON text: JSON {"info": {"type":1,"address": {"town":"Cheltenham","county":"Gloucestershire","country":"England"},"tags": ["Sport","Water polo"]...
data为字符串:No text found in image. Path:"图片路径" 例:{'code':101,'data':'No text found in image. Path: "D:\\空白.png"'} 这是正常现象,识别没有文字的空白图片时会出现这种结果。 200图片路径不存在 data:Image path dose not exist. Path:"图片路径". ...