Question

我有两张桌子 1.资格 2. DebitCardTransaction

我想将状态列更新为＆＃39; Y＆＃39;在debitcardtransaction表中，如果服务日期落在任何BenefitEffectiveDate＆amp; GracePeriodEndDate在资格表中其他＆＃39; N＆＃39;

这两个表之间有两个共同的字段。一个是SSN＆amp;第二是EIN。

例如服务日期是2016-03-02在debitcardtransaction表中SSN = 139668966和EIN = 137580

现在我需要查看此服务日期是否介于BenefitEffectiveDate＆amp;来自资格表的GracePeriodEndDate，SSN = 139668966，EIN = 137580

对于此示例，它不会介于BenefitEffectiveDate＆amp;的任何日期范围之间。 GracePeriodEndDate为SSN = 139668966，EIN = 137580

有人可以帮我解决这个问题吗？

以下是资格表结构

+----------------------+--------------------+-----------+--------+
| BenefitEffectiveDate | GracePeriodEndDate |    SSN    |  EIN   |
+----------------------+--------------------+-----------+--------+
| 2016-01-01           | 2016-01-31         | 139668966 | 137580 |
| 2016-03-01           | 2016-03-30         | 139668966 | 137580 |
| 2016-04-06           | 2016-05-30         | 139668966 | 137580 |
| 2016-01-01           | 2017-02-02         | 539980084 | 137580 |
| 2016-01-01           | 2016-06-01         | 570728149 | 137580 |
| 2016-08-01           | 2016-10-02         | 570728149 | 137580 |
| 2016-01-01           | 2017-02-02         | 624621535 | 137580 |
| 2016-01-01           | 2017-02-02         | 651442905 | 137580 |
| 2016-01-01           | 2017-02-02         | 651442905 | 137580 |
+----------------------+--------------------+-----------+--------+

以下是DebitcardTransaction表

+-------------+--------+-----------+--------+
| ServiceDate |  EIN   |    SSN    | Status |
+-------------+--------+-----------+--------+
| 2016-01-20  | 137580 | 139668966 |        |
| 2016-02-01  | 137580 | 139668966 |        |
| 2016-03-02  | 137580 | 139668966 |        |
| 2016-06-02  | 137580 | 139668966 |        |
| 2016-02-02  | 137580 | 539980084 |        |
| 2016-02-02  | 137580 | 570728149 |        |
| 2016-11-02  | 137580 | 570728149 |        |
| 2016-01-01  | 137580 | 624621535 |        |
| 2016-02-01  | 137580 | 651442905 |        |
+-------------+--------+-----------+--------+

我正在寻找输出

+-------------+--------+-----------+--------+
| ServiceDate |  EIN   |    SSN    | Status |
+-------------+--------+-----------+--------+
| 2016-01-20  | 137580 | 139668966 | Y      |
| 2016-02-01  | 137580 | 139668966 | N      |
| 2016-03-02  | 137580 | 139668966 | Y      |
| 2016-06-02  | 137580 | 139668966 | N      |
| 2016-02-02  | 137580 | 539980084 | Y      |
| 2016-02-02  | 137580 | 570728149 | Y      |
| 2016-11-02  | 137580 | 570728149 | N      |
| 2016-01-01  | 137580 | 624621535 | Y      |
| 2016-02-01  | 137580 | 651442905 | Y      |
+-------------+--------+-----------+--------+

Answer 1

试试这个，

UPDATE  DT
SET     DT.Status = (CASE WHEN EXISTS(
                            SELECT 1
                            FROM    eligibility E
                            WHERE   E.SSN = DT.SSN AND E.EIN = DT.EIN
                                AND DT.ServiceDate BETWEEN E.BenefitEffectiveDate AND GracePeriodEndDate
                            ) THEN 'Y' ELSE 'N' END)
FROM    DebitcardTransaction DT

Answer 2

这是一个带有可更新CTE的工作示例：

DECLARE @tbl1 TABLE (BenefitEffectiveDate DATE,GracePeriodEndDate DATE,SSN INT,EIN INT);
INSERT INTO @tbl1 VALUES
 ('2016-01-01','2016-01-31',139668966,137580 )
,('2016-03-01','2016-03-30',139668966,137580 )
,('2016-04-06','2016-05-30',139668966,137580 )
,('2016-01-01','2017-02-02',539980084,137580 )
,('2016-01-01','2016-06-01',570728149,137580 )
,('2016-08-01','2016-10-02',570728149,137580 )
,('2016-01-01','2017-02-02',624621535,137580 )
,('2016-01-01','2017-02-02',651442905,137580 )
,('2016-01-01','2017-02-02',651442905,137580 );

DECLARE @tbl2 TABLE(ServiceDate DATE,EIN INT,SSN INT,Status CHAR(1));
INSERT INTO @tbl2 VALUES
 ('2016-01-20',137580,139668966,NULL)
,('2016-02-01',137580,139668966,NULL)
,('2016-03-02',137580,139668966,NULL)
,('2016-06-02',137580,139668966,NULL)
,('2016-02-02',137580,539980084,NULL)
,('2016-02-02',137580,570728149,NULL)
,('2016-11-02',137580,570728149,NULL)
,('2016-01-01',137580,624621535,NULL)
,('2016-02-01',137580,651442905,NULL);

WITH myCTE AS
(
    SELECT *
          ,CASE WHEN EXISTS(SELECT 1 
                            FROM @tbl1 AS t1 
                            WHERE t1.EIN=t2.EIN
                              AND t1.SSN=t2.SSN
                              AND t2.ServiceDate>=t1.BenefitEffectiveDate
                              AND t2.ServiceDate< CAST(t1.GracePeriodEndDate AS DATETIME)+1)
                THEN 'Y' ELSE 'N' END AS NewStatus
    FROM @tbl2 AS t2
)
UPDATE myCTE SET Status = NewStatus;

SELECT * FROM @tbl2;

Answer 3

我在一个select语句中尝试了它并包含了连接的所有条件。请查看以下内容：

SELECT 
     T2.ServiceDate
    ,T2.SSN
    ,T2.EIN
    ,[Status] = CASE WHEN T1.BenefitEffectiveDate IS NULL THEN 'N' ELSE 'Y' END
FROM DebitcardTransaction  T2
LEFT JOIN Eligibility  T1
    ON T1.SSN = T2.SSN
    AND T1.EIN = T2.EIN
    AND T2.ServiceDate BETWEEN T1.BenefitEffectiveDate AND T1.GracePeriodEndDate
GROUP BY
     T2.ServiceDate
    ,T2.SSN
    ,T2.EIN
    ,T1.BenefitEffectiveDate
ORDER BY 2

分组依据是因为左连接而单独输出重复项。
排序依据是模仿您的确切输出。

如果这只是一个不好的数据，那么您不需要该组：

| 2016-01-01           | 2017-02-02         | 651442905 | 137580 |
| 2016-01-01           | 2017-02-02         | 651442905 | 137580 |

使用sql server检查日期是否在日期范围之间

3 个答案: