Question

如何在两个日期之间创建所有月份名称的列表，例如1月，2月等。例如2012-02-01至2013-03-29与MySQL ..而2月将生成两次，一次为2012年，另一次为2013

Answer 1

我想这就是你要找的东西：

select MonthName(aDate) from (
  select @maxDate - interval (a.a + (10 * b.a) + (100 * c.a)) month as aDate from
  (select 0 as a union all select 1 union all select 2 union all select 3
   union all select 4 union all select 5 union all select 6 union all
   select 7 union all select 8 union all select 9) a,
  (select 0 as a union all select 1 union all select 2 union all select 3
   union all select 4 union all select 5 union all select 6 union all
   select 7 union all select 8 union all select 9) b,
  (select 0 as a union all select 1 union all select 2 union all select 3
   union all select 4 union all select 5 union all select 6 union all
   select 7 union all select 8 union all select 9) c,
  (select @minDate := '2012-02-01', @maxDate := '2013-03-29') d
) e
where aDate between @minDate and @maxDate

万一有人发现这篇文章并发现它有点难以理解，我只是添加一个简短的解释：

这是一个动态（并且有点难看）的解决方案，用于创建不需要创建表的日期范围，并且基于以下查询为大多数应用程序生成足够的记录（10000条记录）：

select aDate from (
  select @maxDate - interval (a.a+(10*b.a)+(100*c.a)+(1000*d.a)) day aDate from
  (select 0 as a union all select 1 union all select 2 union all select 3
   union all select 4 union all select 5 union all select 6 union all
   select 7 union all select 8 union all select 9) a, /*10 day range*/
  (select 0 as a union all select 1 union all select 2 union all select 3
   union all select 4 union all select 5 union all select 6 union all
   select 7 union all select 8 union all select 9) b, /*100 day range*/
  (select 0 as a union all select 1 union all select 2 union all select 3
   union all select 4 union all select 5 union all select 6 union all
   select 7 union all select 8 union all select 9) c, /*1000 day range*/
  (select 0 as a union all select 1 union all select 2 union all select 3
   union all select 4 union all select 5 union all select 6 union all
   select 7 union all select 8 union all select 9) d, /*10000 day range*/
  (select @minDate := '2001-01-01', @maxDate := '2002-02-02') e
) f
where aDate between @minDate and @maxDate

根据日期范围的长度，您可以通过删除表格（d，c，b和a依次）来减少动态生成结果的数量（10000天意味着超过27年的记录，每个代表一天）也从上面的公式中删除它们。通过设置@minDate和@maxDate变量，您可以指定要过滤结果的日期。

在MySQL中创建两个日期之间的月份名称列表

1 个答案: