JSON到SQL变量字符串

我正在尝试使用SQL server提取JSON文件。我可以得到第一行，但我不知道如何自动递增字符串以选择源文件中的所有值

我尝试了使用union all递归查询的while循环。问题是我无法在字符串中获取变量

以下是我的选择声明：

SELECT * 
FROM OPENJSON (@JSONFILE, '$.series')
WITH (
    Series_id VARCHAR(255)  '$.series_id',
    Name VARCHAR(255)   '$.name',
    Units VARCHAR(255)  '$.units',
    Frequency VARCHAR(255)  '$.f',
    Description VARCHAR(255)'$.description',
    Source VARCHAR(255) '$.source',
    Country VARCHAR(255)    '$.geography',
    Date INT        '$.data[**0**][0]',
    count INT       '$.data[**0**][1]'
    )

SELECT 
    j1.Series_id,
    j1.Name,
    j1.Units,
    j1.Frequency,
    j1.Description,
    j1.Source,
    j1.Country,
   j2.*
FROM OPENJSON(@json, '$.series') WITH (
    Series_id VARCHAR(255)  '$.series_id',
    Name VARCHAR(255)   '$.name',
    Units VARCHAR(255)  '$.units',
    Frequency VARCHAR(255)  '$.f',
    Description VARCHAR(255)'$.description',
    Source VARCHAR(255) '$.source',
    Country VARCHAR(255)    '$.geography',
    data NVARCHAR(max) '$.data' AS JSON
) j1
CROSS APPLY OPENJSON(j1.data) WITH (
    Date INT '$[0]',
    count INT '$[1]'
) j2

粗体数字需要通过源文件自动递增，如下所示：

"series": [
    {
        "series_id": "PET.MCRFPUS2.M",
        "name": "U.S. Field Production of Crude Oil, Monthly",
        "units": "Thousand Barrels per Day",
        "f": "M",
        "unitsshort": "Mbbl/d",
        "description": "U.S. Field Production of Crude Oil",
        "copyright": "None",
        "source": "EIA, U.S. Energy Information Administration",
        "iso3166": "USA",
        "geography": "USA",
        "start": "192001",
        "end": "201901",
        "updated": "2019-03-29T12:45:52-0400",
        "data": [
            [
                "201901",
                11871
            ],
            [
                "201812",
                11961
            ],
            [
                "201811",
                11926
            ],
            [
                "201810",
                11559
            ],
            [
                "201809",
                11470

---

Select语句应自动递增“数据”Select元素

您可以尝试使用以下语句。您需要在显式模式中添加

数据

列，使用

作为JSON

，并使用额外的

交叉应用

JSON:

SELECT语句：

SELECT * 
FROM OPENJSON (@JSONFILE, '$.series')
WITH (
    Series_id VARCHAR(255)  '$.series_id',
    Name VARCHAR(255)   '$.name',
    Units VARCHAR(255)  '$.units',
    Frequency VARCHAR(255)  '$.f',
    Description VARCHAR(255)'$.description',
    Source VARCHAR(255) '$.source',
    Country VARCHAR(255)    '$.geography',
    Date INT        '$.data[**0**][0]',
    count INT       '$.data[**0**][1]'
    )

SELECT 
    j1.Series_id,
    j1.Name,
    j1.Units,
    j1.Frequency,
    j1.Description,
    j1.Source,
    j1.Country,
   j2.*
FROM OPENJSON(@json, '$.series') WITH (
    Series_id VARCHAR(255)  '$.series_id',
    Name VARCHAR(255)   '$.name',
    Units VARCHAR(255)  '$.units',
    Frequency VARCHAR(255)  '$.f',
    Description VARCHAR(255)'$.description',
    Source VARCHAR(255) '$.source',
    Country VARCHAR(255)    '$.geography',
    data NVARCHAR(max) '$.data' AS JSON
) j1
CROSS APPLY OPENJSON(j1.data) WITH (
    Date INT '$[0]',
    count INT '$[1]'
) j2

输出：

Series_id       Name                                        Units                       Frequency   Description                         Source                                      Country Date    count
PET.MCRFPUS2.M  U.S. Field Production of Crude Oil, Monthly Thousand Barrels per Day    M           U.S. Field Production of Crude Oil  EIA, U.S. Energy Information Administration USA     201901  11871
PET.MCRFPUS2.M  U.S. Field Production of Crude Oil, Monthly Thousand Barrels per Day    M           U.S. Field Production of Crude Oil  EIA, U.S. Energy Information Administration USA     201812  11961
PET.MCRFPUS2.M  U.S. Field Production of Crude Oil, Monthly Thousand Barrels per Day    M           U.S. Field Production of Crude Oil  EIA, U.S. Energy Information Administration USA     201811  11926
PET.MCRFPUS2.M  U.S. Field Production of Crude Oil, Monthly Thousand Barrels per Day    M           U.S. Field Production of Crude Oil  EIA, U.S. Energy Information Administration USA     201810  11559
PET.MCRFPUS2.M  U.S. Field Production of Crude Oil, Monthly Thousand Barrels per Day    M           U.S. Field Production of Crude Oil  EIA, U.S. Energy Information Administration USA     201809  11470

---

是否要从

数据

获取所有项目？是。我试图从数据中的每个项目中选择两个值。问题是我无法从字符串值“$.data[0][0]”中获取参数这是一个很好的解决方案，+1。