如何在sql中使用OPENJSON

我试图在JSON数据中使用OpenJSON，但它并没有产生预期的结果。字段_数据中的DB JSON为：

{  
    "name":"Test",
    "Cell-Number":"Test",
    "CNIC":"12112112",
    "Person-Name":"Test",
    "Focal-person-cell-phone":"121212",
    "Focal-person-CNIC":"12121212",
    "Religion":"Test",
    "Total-teachers":"4",
    "Total-students":"37",
    "Total-Hosteled-students":"11",
    "Government-\/-Private":"Govt",
    "Category":"Jamia",
    "Total-Gates":"3",
    "Registration-number":"211121",
    "Security-guard\/watchman":"10",
    "Condition":"Test"
}

我试图获取字段\数据列中name等于Test的数据。 我获取数据的查询是

SELECT *
FROM beat_data 
WHERE EXISTS (
  Select *
  FROM OPENJSON(field_data,'$.name') 
  WHERE Value = 'Test'
)

---

我感觉我没有正确使用路径。

您可以尝试使用

JSON\u VALUE（）

输入：

CREATE TABLE #BeatData (
   JsonColumn nvarchar(max)
)
INSERT INTO #BeatData
   (JsonColumn)
VALUES
   (N'{  
    "name":"Test",
    "Cell-Number":"Test",
    "CNIC":"12112112",
    "Person-Name":"Test",
    "Focal-person-cell-phone":"121212",
    "Focal-person-CNIC":"12121212",
    "Religion":"Test",
    "Total-teachers":"4",
    "Total-students":"37",
    "Total-Hosteled-students":"11",
    "Government-\/-Private":"Govt",
    "Category":"Jamia",
    "Total-Gates":"3",
    "Registration-number":"211121",
    "Security-guard\/watchman":"10",
    "Condition":"Test"
}')

T-SQL：

SELECT *
FROM #BeatData
WHERE JSON_VALUE(JsonColumn, '$.name') = N'Test'

如果要将
JSON
数据作为结果集，请尝试以下操作：

SELECT j.*
FROM #BeatData b
CROSS APPLY OPENJSON(b.JsonColumn) WITH (
    name varchar(100) '$.name',
    [Cell-Number] varchar(100) '$."Cell-Number"',
    CNIC varchar(100) '$.CNIC',
    [Person-Name] varchar(100) '$."Person-Name"',
    [Focal-person-cell-phone] varchar(100) '$."Focal-person-cell-phone"',
    [Focal-person-CNIC] varchar(100) '$."Focal-person-CNIC"',
    Religion varchar(100) '$.Religion',
    [Total-teachers] varchar(100) '$."Total-teachers"',
    [Total-students] varchar(100) '$."Total-students"',
    [Total-Hosteled-students] varchar(100) '$."Total-Hosteled-students"',
    [Government-\/-Private] varchar(100) '$."Government-\/-Private"',
    Category varchar(100) '$.Category',
    [Total-Gates] varchar(100) '$."Total-Gates"',
    [Registration-number] varchar(100) '$."Registration-number"',
    [Security-guard\/watchman] varchar(100) '$."Security-guard\/watchman"',
    Condition varchar(100) '$.Condition'
) j
WHERE j.name = N'Test'

您好@Zhorov，上面的查询生成了0个结果。。看起来情况不正常。需要注意的点。。我的JSON中没有任何N。@Nadeem
'N'
表示后面的字符串是unicode格式的。尝试在没有
WHERE
的情况下执行语句以查看实际结果。插入JSON数据时是否需要添加它？它显示的数据没有WHERE类。。但与where类无关。