sql="select * from ([_DataInfo] right JOIN [_Subject_Data] ON [_DataInfo].DataId = [_Subject_Data].DataId) right JOIN [_Study_Data] ON [_Datainfo].DataId =[_Study_Data].DataId right JOIN [_experience_data] ON [_Datainfo].DataId =[_experience_Data].DataId"
sql="select * from ([_DataInfo] right JOIN [_Subject_Data] ON [_DataInfo].DataId = [_Subject_Data].DataId) right JOIN [_Study_Data] ON [_Datainfo].DataId =[_Study_Data].DataId right JOIN [_experience_data] ON [_Datainfo].DataId =[_experience_Data].DataId"
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