SELECT JSON_VALUE('{"name": "John", "age": 30}', '$.name') FROM dual; 复制代码 JSON_OBJECT:将多个键值对转换为JSON对象。该函数接受一个或多个键值对作为参数,并返回一个JSON对象。示例代码如下: SELECT JSON_OBJECT('name' VALUE 'John', 'age' VALUE 30) FROM dual; 复制代码 JSON_ARRAY:...
insert into test_tbl values('val1', 'val9', 'val10', 'val7'); 使用以下查询创建Json时: SELECT JSON_OBJECT ( 'output' VALUE JSON_ARRAYAGG(JSON_OBJECT('common' VALUE test_col1, 'list' VALUE JSON_ARRAYAGG(JSON_OBJECT('key1' VALUE test_col2, 'key2' VALUE test_col3))) ) FROM ...
public class JsonArrayValue extends java.lang.Object implements IJsonArrayValueRepresents the value for JSON Array.Field Summary Fields inherited from interface com.bea.alsb.debug.json.IJsonArrayValue TYPE Fields inherited from interface com.bea.alsb.debug.value.IValue TYPE_ANY Fields inher...
The API for JSON type in Oracle Database. Uses ofOracleJsonValueinoracle.sql.json Subinterfaces ofOracleJsonValueinoracle.sql.json Modifier and TypeInterfaceDescription interfaceOracleJsonArray A JSON array (an ordered sequence of zero or more values). ...
'dname' value d.dname, 'loc' value d.loc, 'emps' value json_arrayagg ( json_object( 'empno' value e.empno, 'ename' value e.ename, 'job' value e.job, 'mgr' value e.mgr, 'hiredate' value e.hiredate, 'sal' value e.sal, ...
32 JSONArray jsonArr = new JSONArray(jsonArrayStr); 33 length=jsonArr.length(); 34 } 35 } catch (JSONException e) { 36 length=0; 37 } 38 return length; 39 } 40 41 //取json数组第index个元素 42 public static String getArrayValue(String jsonStr,Integer index){ ...
JSONArray jsonArr=new JSONArray(jsonArrayStr); length=jsonArr.length(); } } catch (JSONException e) { length=0; }returnlength; }//取json数组第index个元素publicstatic String getArrayValue(String jsonStr,Integerindex){ String nodeValue=""; ...
获取json中的key数组 select json_keys($json) from test_json; -- 获取json中指定value的json_path select json_search($json,'one','item2') from test_json; -- 可使用通配符 select json_search($json,'one','item%') from test_json; select json_search($json,'all','2') from test_json; ...
select ID, json_value(json_field, '$.Code') from json_table where ID=390; select ID, json_value(json_field, '$.Time') from json_table where ID=390; 两条语句均只返回一条记录。 2 使用count(*)时,查询结果始终正确: create or replace view json_view as select ID, json_value(json_fie...
JsonArray jsonArr=new JsonParser().parse(jsonArrayStr).getAsJsonArray(); length=jsonArr.size(); }else{ length=0; }returnlength; }//取json数组第index个元素publicstatic String getArrayValue(String jsonStr,Integerindex){ String nodeValue="";if(isJsonString(jsonStr)){ ...