SQL選擇最近兩個月的所有條目

Question

我想動態選擇最近兩個月的所有條目，並且在我的查詢中沒有輸入日期範圍。

這裏是我的簡單的代碼：

SELECT Customer_Name, Date FROM table_Customer; all data between last two month 

在此先感謝您的幫助

SELECT 
    ME.FullName, 
    R.RuleDefaultName, 
    PR.ObjectName, 
    PR.CounterName, 
    P.DateTime, 
    P.SampleCount, 
    P.MinValue, 
    P.MaxValue, 
    P.AverageValue, 
    P.StandardDeviation 
FROM 
    Perf.vPerfHourly P 
INNER JOIN vManagedEntity ME ON 
    P.ManagedEntityRowId = ME.ManagedEntityRowId 
INNER JOIN vPerformanceRuleInstance PRI ON 
    P.PerformanceRuleInstanceRowId = PRI.PerformanceRuleInstanceRowId 
INNER JOIN vPerformanceRule PR ON 
    PRI.RuleRowId = PR.RuleRowId 
INNER JOIN vRule R ON 
    PRI.RuleRowId = R.RuleRowId 

Answer 1

SELECT Customer_Name, Dt 
FROM table_Customer 
where dt >= dateadd(day, -60, getdate()) 

或者

SELECT Customer_Name, Dt 
FROM table_Customer 
where dt >= dateadd(month, -2, getdate()) 

您應該確保不使用保留關鍵字作爲列名。

請確保您將dt替換爲適當的date列。該解決方案假定您需要從當前日期開始的前2個月的數據。

Answer 2

Select * 
From Customers 
Where 
    OrderDate between Dateadd(M,-2,OrderDate) And Getdate()