MySQL: filling empty fields with zeroes when using GROUP BY

Question

I\'ve got MySQL table

CREATE TABLE cms_webstat (
    ID int NOT NULL auto_increment PRIMARY KEY,
    TIMESTAMP_X timestamp DEFAULT CURRENT_TIMESTAMP,
    # .         


        

Answer 1

This is just the 'why it is not returning` part. Marcus' answer covers the 'how to' part.

The SQL

SELECT 
    hour(TIMESTAMP_X) as HOUR 
    , count(*) AS HOUR_STAT 
FROM cms_webstat 
GROUP BY HOUR 
ORDER BY HOUR DESC 

gets the count of the records per hour, for the timestamps present in the table

It does not give the details of what is not present in the table. Since there is no recors for the timestamp corresponding to the hour 8 (from your example) the SQL does not return any records.