如何考虑一年中的月份列对sql表进行排序

Question

我有一个year列，其中包含东西字符串值，例如2015、2014、2013、2012等。一个month列，显示字符串值，例如January，Febrary，... December。 我需要运行一个选择，同时考虑“年”和“月”列。 谁能提供一些意见？ 是任何系统程序都可以轻松做到这一点。

我想要基于年和月降序的输出。

Answer 1

您可以执行以下操作：

order by cast(year as int) desc
         ,case when month = 'January' then 1
               when month = 'February' then 2
               ....
               when month = 'December' then 12
          end desc

Answer 2

尝试这个

ORDER BY CAST(month+year AS DATE) DESC

Answer 3

这样尝试

 DECLARE @table TABLE
      (
         year  VARCHAR(10),
         month VARCHAR(20)
      )

    INSERT INTO @table
    VALUES      ('2015',
                 'January'),
                ('2015',
                 'March'),
                ('2015',
                 'February'),
                ('2015',
                 'April'),
                ('2015',
                 'May'),
                ('2014',
                 'January'),
                ('2014',
                 'February'),
                ('2014',
                 'March'),
                ('2014',
                 'May'),
                ('2014',
                 'April'),
                ('2016',
                 'January'),
                ('2016',
                 'February'),
                ('2016',
                 'March'),
                ('2016',
                 'May'),
                ('2016',
                 'April')

        SELECT *
    FROM   @table
    ORDER  BY CONVERT(INT, year) desc,
              Datepart(mm, Cast(month + ' 1900' AS DATETIME)) desc 

Answer 4

您需要将月份名称转换为数字以使用转换参考表并存储值

 jan-1,feb-2,march-3 like wise

然后尝试

SELECT * FROM tblName ORDER BY yearField DESC, monthField DESC