Question

I am not very good at sql , generally I use php to do my complicated tasks , But in this task , there are lots of data , so using php for counting posts is very slow. So I want a sql which counts post by date , but my date column in table is php’s time stamp (int).I will crate post number x date chart

Answer 1

For not knowing SQL you seem to have a decent grasp on the terminology.

Something like this should work:

  SELECT FROM_UNIXTIME(post_date, '%Y %D %M') AS POST_DATE,
         COUNT(post_id) AS POST_COUNT
    FROM posts
GROUP BY POST_DATE