Question

以下代码引发错误：

select * 
from inPersonMedChangeNotes as IP
where 
    (IP.[Date], IP.Patient) not in (select EncounterDate, Patient 
                                    from tbl_patients_clinic_visit_records as VC
                                    join tbl_patients as PS on VC.PatientId = PS.PatientId_this)

错误：

非布尔表达式，其中包含条件

我正在尝试查找inPersonMedChangeNotes中的所有条目，其中值的组合不在tbl_patients_clinic_visit_records表中。我该怎么做？

Answer 1

您可以使用左连接执行此操作：

SELECT * 
FROM inPersonMedChangeNotes as IP
LEFT JOIN tbl_patients_clinic_visit_records as VC ON IP.[Date] = VC.EncounterDate AND IP.Patient = VC.Patient
left join tbl_patients as PS on VC.PatientId = PS.PatientId_this
WHERE VC.EncounterDate IS NULL

Answer 2

遵循相同的查询结构，您可以使用not exists：

select * 
from inPersonMedChangeNotes IP
where not exists (select 1
                  from tbl_patients_clinic_visit_records
                  where ip.patient = vc.patientid and
                        ip.[date] = vc.encounterdate
                 );

我不认为查询需要patient表。

Answer 3

您需要使用LEFT OUTER JOIN。在你的情况下（未经测试）：

select * 
from inPersonMedChangeNotes as IP
LEFT JOIN (
          select EncounterDate, Patient 
          from tbl_patients_clinic_visit_records as VC 
          inner join tbl_patients as PS on VC.PatientId = PS.PatientId_this
) V ON V.EncounterDate = IP.[Date] and IP.Patient = V.Patient 
where v.EncounterDate IS NULL

Answer 4

NOT IN查询只能检查单个字段，不能同时检查多个字段。在单独的NOT IN子句中检查每个条件，并在它们之间使用AND。像这样：

select * 
from inPersonMedChangeNotes as IP
where 
    IP.[Date] not in (select EncounterDate
                                    from tbl_patients_clinic_visit_records as VC
                                    join tbl_patients as PS on VC.PatientId = PS.PatientId_this)

And 


    IP.Patient not in (select Patient 
                                    from tbl_patients_clinic_visit_records as VD
                                    join tbl_patients as PQ on VD.PatientId = PQ.PatientId_this)

Answer 5

首先创建将返回EncounterDate的函数，然后是Patient 使用外部申请。（如果它有效 - :)）它会给你最好的性能

CREATE function spn ()
 RETURNS TABLE 
AS 
RETURN
    (select EncounterDate, Patient 
          from tbl_patients_clinic_visit_records as VC
          join tbl_patients as PS on VC.PatientId = PS.PatientId_this)
         GO

    select *
    from inPersonMedChangeNotes as IP
    OUTER APPLY dbo.spn ()

如何在sql server表中检查列值的组合

5 个答案: