Question

我需要从复杂的“ dict”（我是sql新手）中提取电子邮件

我以前看过同一主题的几篇文章（例如this one），但是似乎没有关于我的数据的文章

select au.details
from table_au au

结果：

{
   "id":3526,
   "contacts":[
      {
         "contactType":"EMAIL",
         "value":"name@email.be",
         "private":false
      },
      {
         "contactType":"PHONE",
         "phoneType":"PHONE",
         "value":"025/6251111",
         "private":false
      }
   ]
}

我需要：

name@email.be

Answer 1

select d.value -> 0 -> 'value' as Email 
from json_each('{"id":3526,"contacts":[{"contactType":"EMAIL","value":"name@email.be","private":false},{"contactType":"PHONE","phoneType":"PHONE","value":"025/6251111","private":false}]}') d 
where d.key::text = 'contacts'

输出：

|   | email         |
 -------------------
|1  |"name@email.be"|

您可以在这里运行它：https://rextester.com/VHWRQ89385

如何从json格式提取值

1 个答案: