查询 CosmosDB 嵌套结构 JSON

Question

我正在为我们的一个应用程序使用 CosmosDB SQLAPI。我使用 Azure Storage Explore 进行查询。 JSON 我发现很难查询的结构。

{
    "countyid": 0,
    "data": [
        [
            {
                "Elements": [
                    {
                        "ID": 11,
                        "V": false,
                        "R": false
                    },
                    {
                        "ID": 16,
                        "V": false,
                        "R": false
                    },
                    {
                        "ID": 3,
                        "V": false,
                        "R": false
                    },
                    {
                        "ID": 5,
                        "V": false,
                        "R": false
                    }
                ]
            },
            {
                "Elements": [
                    {
                        "ID": 486,
                        "V": false,
                        "R": false
                    },
                    {
                        "ID": 492,
                        "V": false,
                        "R": false
                    }
                ]
            }
        ]
    ]
}

我需要获取 Elements[0] ID = 3,5,11,16 和 Elements2 ID = 486,492

CosmosDB Querying JSON edit window

Azure Storage Explorer window trying to query

Query working without where condition

Answer 1

查询嵌套数组数据时需要使用join，请试试这个sql:

SELECT distinct c.data  from c
join elem1 in c.data[0].Elements
join elem2 in c.data[1].Elements
where elem1.ID in(3,5,6,11) and elem2.ID in (486,492)

Answer 2

SQL

select value array(select value z.ID from z in a.Elements)
from c
join b in c.data
join a in b

---

结果

[
    [
        11,
        16,
        3,
        5
    ],
    [
        486,
        492
    ]
]