Question

I have a SQL statement in which I do this

... group by date having date between '2010-07-01' and '2010-07-10';

The result looks like:

sum(test)        day
--------------------
20        2010-07-03
120       2010-07-07
33        2010-07-09
42        2010-07-10

So I have these results, but is it possible, that I can write a statement that returns me for every day in the “between” condition a result row in this kind:

sum(test)        day
--------------------
0         2010-07-01
0         2010-07-02
20        2010-07-03
0         2010-07-04
0         2010-07-05
0         2010-07-06
120       2010-07-07
...       ...
42        2010-07-10

Otherwise, if this is not possible, I have to do it in my program logic.

Thanks a lot in advance & Best Regards.

Update: Perhaps it will be better if I will show you the full SQL statement:

select COALESCE(sum(DUR), 0) AS "r", 0 AS "opt", DATE_FORMAT(date, '%d.%m.%Y') AS "day" from (
    select a.id as ID, a.dur as DUR, DATE(FROM_UNIXTIME(REVTSTMP / 1000)) as date, 
        a_au.re as RE, a_au.stat as STAT from b_c
        join c on b_c.c_id = c.id
        join a on c.id = a.c_id
        join a_au on a.id = a_au.id
        join revi on a_au.re = revi.re
        join (
            select a.id as ID, DATE(FROM_UNIXTIME(REVTSTMP / 1000)) as date, 
            max(a_au.re) as MAX_RE from b_c
                join c on b_c.c_id = c.id
                join a on c.id = a.c_id
                join a_au on a.id = a_au.id
                join revi on a_au.re = revi.re
                where b_c.b_id = 30 group by ID, date) x on
                x.id = a.id and x.date = date and x.MAX_RE = a_au.rev
                where a_au.stat != 7
            group by ID, x.date)
         AS SubSelTable where date between '2010-07-01' and '2010-07-15' group by date;

---

Update:
My new SQL statement (-> Dave Rix):

select coalesce(`theData`.`real`, 0) as 'real', 0 as 'opt', DATE_FORMAT(`DT`.`ddDate`, '%d.%m.%Y') as 'date'
    from `dimdates` as DT 
    left join (
        select coalesce(sum(DUR), 0) AS 'real', 0 AS 'opt', date 
            from (
                select a.id as ID, a.dur as DUR, DATE(FROM_UNIXTIME(REVTSTMP / 1000)) as date, a_au.RE as RE, a_au.stat as STAT 
                    from b_c 
                        join c on b_c.c_id = c.id 
                        join a on c.id = a.c_id 
                        join a_au on a.id = a_au.id 
                        join revi on a_au.RE = revi.RE 
                        join ( 
                            select a.id as ID, DATE(FROM_UNIXTIME(REVTSTMP / 1000)) as date, max(a_au.RE) as MAX_RE 
                                from b_c 
                                join c on b_c.c_id = c.id 
                                join a on c.id = a.c_id 
                                join a_au on a.id = a_au.id 
                                join revi on a_au.RE = revi.RE 
                            where b_c.b_id = 30 GROUP BY ID, date
                        ) x 
                    on x.id = a.id and x.date = date and x.MAX_RE = a_au.RE 
                    where a_au.stat != 20 
                    group by ID, x.date
            ) AS SubTable 
        where date between '2010-07-01' and '2010-07-10' group by date) AS theData 
    ON `DT`.`ddDate` = `theData`.`date` where `DT`.`ddDate` between '2010-07-01' and '2010-07-15';

Answer 1

Check out my answer to the following question;

Select all months within given date span, including the ones with 0 values

This may be just what you are looking for 🙂

You can modify your query above as follows (you could integrate this, but this way is simpler!);

SELECT COALESCE(`theData`.`opt`, 0), `DT`.`myDate`
FROM `dateTable` AS DT
LEFT JOIN (
        ... INSERT YOUR QUERY HERE ...
) AS theData
ON `DT`.`myDate` = `theData`.`date`

and you will also need to change the DATE_FORMAT(date, '%d.%m.%Y') AS "day" in your query to just date
E.g.

select COALESCE(sum(DUR), 0) AS "r", 0 AS "opt", `date` from

As for @OMG Ponies answer, you will need to pre-populate the dateTable with plenty of rows of data!

Does anyone know how I can post my SQL dump of this table as a file which can be attached? It’s quite big, but can be useful…