OrientDB查詢子

Question

Orientdb 2.1.11（文檔數據庫）是否有辦法獲取EmebeddedList

這是課程結構

{
    "@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
      }
    ]
}

我想要一個查詢，它將返回以下內容：

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

Answer 1

我已經復制了您的結構

我已經使用了這個查詢

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)

希望能幫助到你