Say I have a startdate = '2010/04/01' and an enddate = '2011/02/01'.
假设我有一个startdate = '2010/04/01'和一个enddate = '2011/02/01'。
How would I set up a query such that I retrieve the following table as a response:
我将如何设置一个查询，以便检索下表作为响应:
month
2010/04/01
2010/05/01
2010/06/01
2010/07/01
2010/08/01
2010/09/01
2010/10/01
2010/11/01
2010/12/01
2011/01/01
2011/02/01
Note that I'm not too fussed about the format, anything that works will do.
注意，我对格式不是太在意，任何有用的东西都可以。
1 个解决方案
#1
5
PostgreSQL has generate_series() to make that an easy task:
PostgreSQL有generate_series()，可以轻松完成以下任务:
SELECT generate_series('2010-04-01', '2011-02-01', interval '1 month')::date
#1
5
PostgreSQL has generate_series() to make that an easy task:
PostgreSQL有generate_series()，可以轻松完成以下任务:
SELECT generate_series('2010-04-01', '2011-02-01', interval '1 month')::date