Retrieve missing dates from database via MySQL

Question

So I have a table where I collect data for the jobs that I do. Each time I create a job I assign it a date. The problem with this is the days I don\'t have jobs aren\'t stored i

Answer 1

One idea is that you could have a table with all of the dates in it that you want to show and then do an outer join with that table.

So if you had a table called alldates with one column (job_data_date):

SELECT ad.job_data_date, SUM(job_data_invoice_amount) as job_data_date_income 
FROM alldates ad left outer join job_data jd on ad.job_data_date = jd.job_data_date 
WHERE ad.job_data_date >= '2010-05-05' 
GROUP BY ad.job_data_date 
ORDER BY ad.job_data_date;

The down side is that you would need to keep this table populated with all of the dates you want to show.