SQL Server 2017中的OpenJson：无法绑定多部分标识符

Question

在[DB_DW]。[dbo] .DIM_DW_MEETINGS中，我有一个名为个人的Json列：

[  
   {  
      "Activity_id":1787040082,
      "IndividualID":52528443
   },
   {  
      "Activity_id":1787040082,
      "IndividualID":99312125
   }
]

我现在想在sql中执行以下查询：

SELECT DISTINCT
    *
FROM [DB_DW].dbo.DIM_DW_FACT_ACTIVITIES Fact
INNER JOIN [DB_DW].[dbo].DIM_DW_MEETINGS dimMeetings
    ON Fact.Activity_TECH_KEY = dimMeetings.MEETING_TECH_KEY
LEFT JOIN (SELECT
        *
    FROM OPENJSON(
    (dimMeetings.Individuals)
    ) WITH (
    IndividualID INT '$.IndividualID',
    Activity_id INT '$.Activity_id'
    )) query
    ON query.Activity_id = dimMeetings.Meeting_ID

但是我总是有这个错误：

不能绑定多部分标识符“ dimMeetings.Individuals”。

Answer 1

使用外部应用到OPENJSON函数

    SELECT DISTINCT
    *
    FROM DIM_DW_FACT_ACTIVITIES Fact
    INNER JOIN DIM_DW_MEETINGS dimMeetings
    ON Fact.Activity_TECH_KEY = dimMeetings.MEETING_TECH_KEY
    OUTER APPLY OPENJSON(
    (dimMeetings.Individuals)
            ) WITH (
    IndividualID INT '$.IndividualID',
    Activity_id INT '$.Activity_id'
    ) query