排除部分匹配条件的记录

Question

我有两个表：Person 和 Loan_Dtl，我希望我的结果仅显示所有贷款都符合以下条件的人员。如果此人拥有多种贷款，其中一些符合这些条件，而另一些则不符合，那么此人不应出现在结果中。

• l.loan_type_cd IN ('D0','D1','D2','D3','D5','D6','D7','D8','D9')
• AND (l.opb_amt + l.oib_amt) > 0
• AND l.loan_status_cd = 'RP'
• AND l.repymt_plan_type_cd IN ('C1', 'C2', 'C3', 'I3', 'I4', 'I5', 'IB', 'IC', 'IL', 'IS', 'J5' 、“P1”、“PA”、“RA”）
• l.loan_holder_cd IN ('578', '580', '500', '507', '512')

我下面的代码可以显示拥有一些匹配贷款的人。在示例数据中，D2'、'RP'、'I5'、250、50 是结果中包含的唯一贷款，但此人 (2544541) 根本不应包含在结果中，因为他还有其他贷款不匹配。我只需要所有贷款都匹配的人。人员 2544542 应该出现在结果中，因为他只有匹配的贷款。

SELECT 
  COUNT(DISTINCT p.person_id) AS Borrower_Count   
 ,SUM(l.opb_amt + l.oib_amt) as balance 
FROM person p INNER JOIN 
 loan_dtl l on p.person_id = l.brwr_person_id 
WHERE  
  NOT EXISTS  
            (SELECT 1 
              FROM loan_dtl l2 
              WHERE l.loan_id = l2.loan_id 
              AND l2.loan_type_cd NOT IN 
  ('D0','D1','D2','D3','D5','D6','D7','D8','D9')
            ) 
            
  AND NOT EXISTS  
            (SELECT 1 
              FROM loan_dtl l2 
              WHERE l.loan_id = l2.loan_id 
              AND (l.opb_amt + l.oib_amt) = 0 
            )

    AND NOT EXISTS 
            (SELECT 1 
              FROM loan_dtl l2 
              WHERE l.loan_id = l2.loan_id
              AND l.loan_status_cd NOT IN ('RP')
          ) 

 AND NOT EXISTS 
            (SELECT 1
              FROM loan_dtl l2 
              WHERE l.loan_id = l2.loan_id
              AND l.repymt_plan_type_cd NOT IN ('C1', 'C2', 'C3', 'I3', 'I4', 'I5', 
              'IB', 'IC', 'IL', 'IS', 'J5', 'P1', 'PA', 'RA')
            )
            
  AND NOT EXISTS 
            (SELECT 1
              FROM loan_dtl l2 
              WHERE l.loan_id = l2.loan_id 
              AND l.loan_holder_cd NOT IN ('578', '580', '500', '507', '512')
            )

表格和数据：

CREATE TABLE [dbo].[Loan_dtl](
[loan_id] [int] NULL,
[brwr_person_id] [int] NULL,
[loan_holder_cd] [int] NULL,
[loan_type_cd] [varchar](50) NULL,
[loan_status_cd] [varchar](50) NULL,
[REPYMT_PLAN_TYPE_CD] [varchar](50) NULL,
[OPB_AMT] [int] NULL,
[OIB_AMT] [int] NULL
) ON [PRIMARY]
GO
SET ANSI_NULLS ON
GO
SET QUOTED_IDENTIFIER ON
GO

CREATE TABLE [dbo].[Person](
[person_id] [int] NULL
) ON [PRIMARY]
GO


INSERT [dbo].[Loan_dtl] ([loan_id], [brwr_person_id], 
[loan_holder_cd], [loan_type_cd], [loan_status_cd], 
[REPYMT_PLAN_TYPE_CD], [OPB_AMT], [OIB_AMT]) VALUES (124677158, 
 2544541, 755, N'CL', NULL, NULL, 25824, 3261)
 GO
 INSERT [dbo].[Loan_dtl] ([loan_id], [brwr_person_id], 
 [loan_holder_cd], [loan_type_cd], [loan_status_cd], 
[REPYMT_PLAN_TYPE_CD], [OPB_AMT], [OIB_AMT]) VALUES (124919090, 
2544541, 755, N'CL', NULL, NULL, 37708, 4761)
GO
INSERT [dbo].[Loan_dtl] ([loan_id], [brwr_person_id], 
[loan_holder_cd], [loan_type_cd], [loan_status_cd], 
[REPYMT_PLAN_TYPE_CD], [OPB_AMT], [OIB_AMT]) VALUES (102070274, 
2544541, 507, N'D2', N'RP', N'I5', 250, 50)
GO
INSERT [dbo].[Loan_dtl] ([loan_id], [brwr_person_id], 
[loan_holder_cd], [loan_type_cd], [loan_status_cd], 
[REPYMT_PLAN_TYPE_CD], [OPB_AMT], [OIB_AMT]) VALUES (102070266, 
2544541, 507, N'SF', NULL, N'IB', 737, 189)
GO
INSERT [dbo].[Loan_dtl] ([loan_id], [brwr_person_id], 
[loan_holder_cd], [loan_type_cd], [loan_status_cd], 
[REPYMT_PLAN_TYPE_CD], [OPB_AMT], [OIB_AMT]) VALUES (102070269, 
2544541, 507, N'D1', NULL, N'IB', 0, 0)
GO
INSERT [dbo].[Loan_dtl] ([loan_id], [brwr_person_id], 
[loan_holder_cd], [loan_type_cd], [loan_status_cd], 
[REPYMT_PLAN_TYPE_CD], [OPB_AMT], [OIB_AMT]) VALUES (102070280, 
2544542, 507, N'D2', N'RP', N'I5', 950, 5)
GO
INSERT [dbo].[Person] ([person_id]) VALUES (2544541)
GO
INSERT [dbo].[Person] ([person_id]) VALUES (2544542)
GO

Answer 1

我认为你逻辑的主要问题是你的

NOT EXISTS

子句与

loan_id

相关。因此，来自任何特定人的所有贷款，但未被

NOT EXISTS

排除的贷款仍会回来。您需要将该相关性更改为

brwr_person_id

。我认为它可以简化为一个简单的

NOT EXISTS

子句：

WHERE NOT EXISTS  
(
  SELECT 1 FROM loan_dtl l2 
    WHERE l.brwr_person_id = l2.brwr_person_id
    AND 
    (
      l2.loan_type_cd NOT IN
         ('D0','D1','D2','D3','D5','D6','D7','D8','D9'))
      OR (l.opb_amt + l.oib_amt) = 0 
      OR l.loan_status_cd NOT IN ('RP')
      OR l.repymt_plan_type_cd NOT IN 
         ('C1', 'C2', 'C3', 'I3', 'I4', 'I5', 'IB', 
          'IC', 'IL', 'IS', 'J5', 'P1', 'PA', 'RA')
      OR l.loan_holder_cd NOT IN 
         ('578', '580', '500', '507', '512')
   )
);

尽管以下变体对优化器更加友好（消除了一些昂贵的 SORT 运算符）：

SELECT 
  COUNT(p.person_id) AS Borrower_Count,
  SUM(cap.balance) AS balance
FROM dbo.person p CROSS APPLY
(
  SELECT SUM(l.opb_amt + l.oib_amt) as balance 
  FROM dbo.loan_dtl l 
  WHERE p.person_id = l.brwr_person_id 
) AS cap
WHERE NOT EXISTS  
(
  SELECT 1 FROM dbo.loan_dtl l2 
    WHERE p.person_id = l2.brwr_person_id
    AND 
    (
      l2.loan_type_cd NOT IN
         ('D0','D1','D2','D3','D5','D6','D7','D8','D9')
      OR (l2.opb_amt + l2.oib_amt) = 0 
      OR l2.loan_status_cd NOT IN ('RP')
      OR l2.repymt_plan_type_cd NOT IN 
         ('C1', 'C2', 'C3', 'I3', 'I4', 'I5', 'IB', 
          'IC', 'IL', 'IS', 'J5', 'P1', 'PA', 'RA')
      OR l2.loan_holder_cd NOT IN 
         ('578', '580', '500', '507', '512')
   )
);

• 示例db<>小提琴