Question

我需要将月份拉上个月以某种方式动态地显示MONTH（bea_CreatedOn） - 1，因此此报告将自动正确地拉出月份总列数。所以，以下代码中的bea_CreatedOn＆gt; ='2015-07-01 00：00：00.000'和bea_CreatedOn＆lt; ='2015-07-31 23：59：59.000'部分。

SELECT cdb_Account_ID                       AS AccountID,
       cdb_Database,
       ISNULL(TMonthly.MonthlyTotalSent, 0) AS [Monthly Emails],
       ISNULL(TYearly.YearlyTotalSent, 0)   AS [YTD Emails],
       '10000'                              AS Baseline,
       'Monthly'                            AS [Monthly vs Yearly],
       '.01'                                AS [Rate after Baseline],
       CASE
         WHEN ISNULL(TMonthly.MonthlyTotalSent, 0) < 10000
           THEN 0
         ELSE ( ISNULL(TMonthly.MonthlyTotalSent, 0) - 10000 ) * .01
       END                                  AS [Billable Amount],
       '360'                                AS Product,
       ''                                   AS [Paid -Y/N]
FROM   [HVV-CENTRALOPSDB].[Security].[dbo].[sec_ClientDatabase] AS t1
       LEFT JOIN (SELECT bea_cdb_GUID,
                         SUM(bea_D_count)                    AS MonthlyDelivered,
                         SUM(bea_B_Count)                    AS MonthlyBounce,
                         SUM(bea_D_Count) + SUM(bea_B_count) AS MonthlyTotalSent
                  FROM   [HVV-CENTRALOPSDB].[CentralOps].[dbo].[cop_BlastEmailUsage]
                  WHERE  bea_CreatedOn >= '2015-07-01 00:00:00.000'
                         AND bea_CreatedOn <= '2015-07-31 23:59:59.000'
                  GROUP  BY bea_cdb_GUID) AS TMonthly
         ON tMonthly.bea_cdb_GUID = cdb_GUID
       LEFT JOIN (SELECT bea_cdb_GUID,
                         SUM(bea_D_count)                    AS YearlyDelivered,
                         SUM(bea_B_Count)                    AS YearlyBounce,
                         SUM(bea_D_Count) + SUM(bea_B_count) AS YearlyTotalSent
                  FROM   [HVV-CENTRALOPSDB].[CentralOps].[dbo].[cop_BlastEmailUsage]
                  WHERE  bea_CreatedOn >= '2015-01-01 00:00:00.000'
                         AND bea_CreatedOn <= '2015-12-31 23:59:59.000'
                  GROUP  BY bea_cdb_GUID) AS TYearly
         ON tYearly.bea_cdb_GUID = cdb_GUID
WHERE  cdb_Deleted = 0
       AND ( ( cdb_Database NOT LIKE '%Test%'
                OR cdb_Database NOT LIKE '%Sample%'
                OR cdb_Database NOT LIKE '%VIQ%' )
              OR cdb_Database NOT IN ( 'P6_OLP_Impl_20091222', 'P6_OLP_LIBE_20101224', 'P7Test_Aristotle_1_11192013', 'P7Test_Aristotle_1_11202013',
                                       'P6_NA-DBName_20131009', 'P6_NAR_SANDBOX', 'P6_VIQ_ASAP_20140314', 'P6_VIQ_TechSupport_20140314',
                                       'P6_VIQ_BerlinRosen_20140314', 'P6_VIQ_Demo_20140314', '' ) )
       AND ISNULL(TYearly.YearlyTotalSent, 0) > 0

Answer 1

你的例子有7月的日期，但月份的过程是8月。

以下代码段将分别为您提供正在进行的开始日期和月末日期。如果您正在使用Sql Server 2012，那么它可以简化（因此我的问题）。

Declare @StartDate DateTime = Cast(Floor(Cast(DateAdd(Month, -1, GetDate()) As Decimal(12, 5))) - ( Day(DateAdd(Month, -1, GetDate())) - 1 ) As DateTime);
Declare @EndDate DateTime = DateAdd(Month, 1, @StartDate) - 1;

注意，现在你已经说过你了2012年，看看EOMonth功能。

Declare @EndDate Date = EOMonth(DateAdd(Month, -1, GetDate();
Declare @StartDate Date = DateAdd(Day, 1, DateAdd(Month, -1, @EndDate));

在我的手机上使用移动应用程序这样做了，所以无法检查它的100％完美......

动态TSQL日期

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