ORACLE 将json数组转成表

Posted 2021-06-11 hziwei

json_table使用

• 方式一

SELECT 
FR.*
FROM dual ,
JSON_TABLE(\'[{"name":"hziwei", "age": 13},{"name":"hziwei", "age": 15}]\',\'$[*]\'
COLUMNS ( name VARCHAR2(10) PATH \'$.name\',
                     age VARCHAR2(10) PATH \'$.age\'
)) AS FR where age > 13;

• 方式二

SELECT 
FR.*
FROM dual ,
JSON_TABLE(\'{"data": [{"name":"hziwei", "age": 13},{"name":"hziwei", "age": 15}]}\',\'$.data[*]\'
COLUMNS (name VARCHAR2(10) PATH \'$.name\',
                     age NUMBER PATH \'$.age\'
)) AS FR         
;

• 从表中的json数组字段转换为表

表结构 表名:TEST

SELECT 
FR.*
FROM TEST,
JSON_TABLE(CONTENT,\'$[*]\'
COLUMNS ( name VARCHAR2(10) PATH \'$.name\',
           age NUMBER PATH \'$.age\'
)) AS FR         
;