Question

我正在涉足JSON，我想将用户添加到多个组：将JSON数组插入表中。

理想情况下，JSON如下所示：

'{
"Email": "WMogh@starfleet.gov",
"Prefix":null,
"FirstName": "Worf",
"MiddleInitial": "",
"LastName": "Mogh",
"Suffix": "Son Of",
"Title" :"Commander",
"Groups": [{"0", "1", "5"}]
"Better_Groups": [{"ID":"0", "ID":"1", "ID":"5"}]
}'

目前，我可以像这样使用JSON：

'{
"Email": "WMogh@starfleet.gov",
"Prefix":null,
"FirstName": "Worf",
"MiddleInitial": "",
"LastName": "Mogh",
"Suffix": "Son Of",
"Title" :"Commander",
"Groups": "1,2,3,4"
}'

然后使用以下内容“解压”它：

declare @groups varchar(1000)

select @groups = Groups from openjson(@json)
                WITH
        (

        Groups nvarchar(100)        '$.Groups'
        )

        print @groups

select value from string_split(@groups, ',')

它返回一个漂亮的小表，如下所示：

Value
1
2
3
4

问题这是错误的JSON，Web开发人员会取笑我。

问题您如何在SQL Server中正确解压缩JSON数组？

更新：

最终使用的JSON如下所示：

    @json =
            '{
            "Email": "WMogh@starfleet.gov",
            "Prefix":null,
            "FirstName": "Worf",
            "MiddleInitial": "",
            "LastName": "Mogh",
            "Suffix": "Son Of",
            "Title" :"Commander",
            "Groups": "1,2,3,4",
            "Better_Groups": ["0", "1", "5"]
            }'

Answer 1

假设“ groups”元素是一个数组：

DECLARE @json NVARCHAR(MAX) = 
N'{
"Email": "WMogh@starfleet.gov",
"Prefix":null,
"FirstName": "Worf",
"MiddleInitial": "",
"LastName": "Mogh",
"Suffix": "Son Of",
"Title" :"Commander",
"Better_Groups": ["0", "1", "5"]
}';

SELECT s.value
FROM OPENJSON(JSON_QUERY(@json, '$.Better_Groups')) s;

db<>fiddle demo

如何在SQL Server中正确解压缩JSON数组

1 个答案: