1

我会尽力解释，但如果不清楚，请告诉我。英语不是我的第一语言。

我需要一些查询帮助，作为插入或不插入记录集的条件。

首先，我有一个数据库表 EmployeeProviders。

在其中一个存储过程中，我根据某些条件重新计算信用。在这种情况下，记录的数量是三个，但可能或多或少。

如果在重新计算后我得到与 EmployeeProviders 中相同的有效日期的数字或积分，我不需要插入这些值。EmployeeProviders 可能包含按生效日期分隔的每个员工的几组记录。

对我来说，困难在于构造一个查询，在这种情况下，它不是一个一个地检查记录，而是三个一组地检查记录。如果其中一条记录不匹配，我需要插入所有三条记录。如果它们都相同，我不插入任何记录。

declare @StartDate datetime, @employee_id int
select @StartDate = '2013-07-01', @employee_id = 3465

例如，这里是填充了值的 db 表

    DECLARE @EmployeeProviders TABLE (
    ident_id int IDENTITY,
                employee_id int,
    id int, 
    plan_id int, 
    credits decimal(18,5),
    effective_date datetime                     
)

INSERT INTO @EmployeeProviders (employee_id, plan_id, id, credits, effective_date)
VALUES (18753, 23, 0.00000, '2013-06-01')

INSERT INTO @EmployeeProviders (employee_id, plan_id, id, credits, effective_date)
VALUES (3465, 18753, 15, 0.00000, '2013-06-01')

INSERT INTO @EmployeeProviders (employee_id, plan_id, id, credits, effective_date)
VALUES (3465, 18753, 16, 60.00, '2013-06-01')

INSERT INTO @EmployeeProviders (employee_id, plan_id, id, credits, effective_date)
VALUES (3465, 18753, 23, 0.00000, '2013-07-01')

INSERT INTO @EmployeeProviders (employee_id, plan_id, id, credits, effective_date)
VALUES (3465, 18753, 15, 0.00000, '2013-07-01')

INSERT INTO @EmployeeProviders (employee_id, plan_id, id, credits, effective_date)
VALUES (3465, 18753, 16, 81.580, '2013-07-01')

SELECT * FROM @EmployeeProviders WHERE plan_id = 18753 and datediff(dd,effective_date,@StartDate) = 0

这是存储过程中的临时表。它在计算过程中得到更新

DECLARE @Providers TABLE (
    id int, 
    plan_id int, 
    credits decimal(18,5)                           
)

INSERT INTO @Providers (plan_id, id, credits)
VALUES (18753, 23, 0.00000)

INSERT INTO @Providers (plan_id, id, credits)
VALUES (18753, 15, 0.00000)

INSERT INTO @Providers (plan_id, id, credits)
VALUES (18753, 16, 81.580)

SELECT * FROM @Providers

在此临时表中的所有更新量与 db 表 EmployeeProviders 中的所有更新量相同之后，我不需要插入新的记录集如何执行一个查询，该查询可以是 IF NOT EXISTS() 之类的条件，也可以只是执行 INSERT EmployeeProviders ()... SELECT ... FROM @Providers ,,, -- 如果值与 EmployeeProviders 中的值不同，该查询将返回我的 3 条记录集

另一种情况，@Providers.credits = 65，因为与 id = 16 的 EmployeeProviders.credits 相比，金额发生了变化。我将向 EmployeeProvider 表添加新的 3 条记录

    DECLARE @Providers TABLE (
    id int, 
    plan_id int, 
    credits decimal(18,5)                           
)

INSERT INTO @Providers (plan_id, id, credits)
VALUES (18753, 23, 0.00000)

INSERT INTO @Providers (plan_id, id, credits)
VALUES (18753, 15, 0.00000)

INSERT INTO @Providers (plan_id, id, credits)
VALUES (18753, 16, 65.00)

SELECT * FROM @Providers

先感谢您，

麦

4

3 回答 3

1

如果我正确理解您的问题，您的问题可以通过使您的插入以结果为条件来解决Except

if exists(
select ID, plan_id , credits from @Providers
except
SELECT id, plan_id, credits FROM @EmployeeProviders WHERE plan_id = 18753 and   datediff(dd,effective_date,@StartDate) = 0
)
于 2013-07-04T19:04:48.877 回答
0

我会试一试。在存储过程中试试这个：

if (EXISTS(select 3465,pr.plan_id,pr.id,epr.credits,effective_date from
   providers pr left join @EmployeeProviders epr on
   pr.id = epr.id and pr.plan_id = epr.plan_id and pr.credits = epr.credits and    effective_date = '2013-07-01'
   where epr.credits is NULL ))
 INSERT INTO @EmployeeProviders (employee_id, plan_id, id, credits, effective_date)
 select 3463,plan_id,id,credits,'2013-07-01' from @Providers

看到它在行动

于 2013-07-04T19:02:22.320 回答
0

使用类似以下查询的内容。我为你概括了。核实 。

WITH TEMP 
AS
(
SELECT A.employee_id, A.plan_id, A.id, A.credits, A.effective_date,CASE WHEN A.CREDITS = B.CREDITS THEN    1 ELSE 0 END AS SAME
FROM @EmployeeProviders as A INNER JOIN @Providers as B ON A.ID = B.ID AND 
A.PLAN_ID = B.PLAN_ID AND A.effective_date = '2013-07-01'
)

SELECT *
FROM TEMP AS A INNER JOIN 
(SELECT EMPLOYEE_ID , PLAN_ID , SUM(SAME) AS TOTAL , COUNT(*) AS CNT FROM TEMP GROUP BY EMPLOYEE_ID ,   PLAN_ID ) AS B  
ON A.EMPLOYEE_ID = B.EMPLOYEE_ID AND A.PLAN_ID = B.PLAN_ID
WHERE B.TOTAL != B.CNT
于 2013-07-04T19:41:36.827 回答