Question

我需要从当前月到下个月的表格中选择数据。但我的数据中没有日期列。日期分为三个部分 - CalDay，CalMonth和CalYear。

我在下面尝试过查询：

SELECT CustomerName, CalDay, CalMonth, CalYear, RequiredHours
FROM [DLSizingDB].[dbo].[SMTRequiredHours]
WHERE       
    CalYear >= (SELECT YEAR(GETDATE())) AND 
    CalYear <= (SELECT YEAR(DATEADD(MONTH,12,CURRENT_TIMESTAMP))) AND
    CalMonth >= (SELECT MONTH(GETDATE()))
    AND SiteCode = 'MX01'
ORDER BY CustomerName

仅选择2016年12月之前的数据。我也需要选择2017年1月。怎么做到这一点？

样本数据

CustomerName     CalDay     CalMonth     CalYear     RequiredHours
"ACFG"           1          2            2016        10
"AZS"            1          3            2016        20
"AZW"            1          4            2016        20
"AZG"            1          5            2016        20
"AZJ"            1          6            2016        20
"AZL"            1          1            2017        20

Answer 1

也许这样的事情会起作用......

SELECT CustomerName, CalDay, CalMonth, CalYear, RequiredHours
FROM [DLSizingDB].[dbo].[SMTRequiredHours]
WHERE      
  SiteCode = 'MX01' AND 
  (
    (CalYear = YEAR(GETDATE()) AND CalMonth >= MONTH(GETDATE()))
    OR 
    (CalYear = YEAR(GETDATE()) + 1 AND CalMonth < MONTH(GETDATE()))
  )
ORDER BY CustomerName

年份是当前年份和月份大于当前月份或年份是明年，月份小于当月。

Answer 2

此声明也考虑了CalDay。这将选择日期在[current_date，current_date +一年]范围内的所有条目。

SELECT CustomerName, CalDay, CalMonth, CalYear, RequiredHours
FROM [DLSizingDB].[dbo].[SMTRequiredHours]
WHERE
    SiteCode = 'MX01' AND (
        calyear=YEAR(GETDATE())   AND (calmonth>MONTH(GETDATE()) OR calmonth=MONTH(GETDATE()) AND calday>=DAY(GETDATE())) OR
        calyear=YEAR(GETDATE())+1 AND (calmonth<MONTH(GETDATE()) OR calmonth=MONTH(GETDATE()) AND calday< DAY(GETDATE()))
    )
ORDER BY CustomerName;

在SQL Server 2012+中，您可以使用DATEFROMPARTS：

SELECT CustomerName, CalDay, CalMonth, CalYear, RequiredHours
FROM [DLSizingDB].[dbo].[SMTRequiredHours]
WHERE
    SiteCode = 'MX01' AND 
    DATEFROMPARTS(calyear,calmonth,calday) BETWEEN CAST(GETDATE() AS DATE) AND CAST(DATEADD(DAY,-1,DATEADD(YEAR,1,GETDATE())) AS DATE)
ORDER BY CustomerName;

SQL Server

2 个答案: