Orientdb查询子

Question

Orientdb 2.1.11（文档数据库）有没有办法获取EmbeddedList

这里是class结构

{
    "@class":"Quote",
    "number":"Q1",
    "details":[{
      "code":"123",
      "price":10
      },{
      "code":"456",
      "price":20
      }
    ]
},{
    "@class":"Quote",
    "number":"Q2",
    "details":[{
      "code":"789",
      "price":15
      },{
      "code":"951",
      "price":25
      }
    ]
}

我想要一个将 return 以下内容的查询：

number| code | price
------|------|------
Q1    | 123  | 10
Q1    | 456  | 20
Q2    | 789  | 15
Q2    | 951  | 25

Answer 1

我已经复制了你的结构

而且我已经使用了这个查询

select number, details.code as code, details.price as price from (select prop.number as number, prop.details as details from (select prop from test unwind prop) unwind details)

希望对您有所帮助

Orientdb查询子

Orientdb query child

sql

orientdb

orientdb-2.1