Question

I’m trying to come up with a way to query my blog database to find out which days within a certain range have posts.

Eg. If my dates are 1/1/2012 – 1/30/2012, how many of those 30 days contain at least one blog post?

My dates are stored as: 0000-00-00 00:00:00

Answer 1

I think just to get the number of days that have posts

  SELECT Count(distinct DATE(date_column))
  FROM your_table
  WHERE DATE_COLUMN > '2012-01-01' and DATE_COLUMN < '2012-02-01'

To get a list of them, something more like what jergen wrote:

 SELECT date(date_column)
 FROM your_table
 GROUP BY date(date_column)

date is a mysql function to get the date from a datetime column (I haven’t tried this, just from reading the manuals)