how to include dates where no value - sql

Question

I have a query like so -
select CAST(jobrun_proddt as Date) as 'Date', COUNT(*) as 'Error Occurred Jobs' from jobrun
where jobrun_orgstatus = 66 and jobmst_type <> 1
group by jobrun_proddt
order by jobrun_proddt desc
Not every date will have a count. What I want to be able to do is the dates that are blank to have a count of 0 so the chart would look like this -
2014-11-18 1
2014-11-17 0
2014-11-16 0
2014-11-15 0
2014-11-14 0
2014-11-13 1
2014-11-12 0
2014-11-11 1
Currently it's not returning the lines where there's no count.
2014-11-18 1
2014-11-13 1
2014-11-11 1
edit to add that the jobrun table DOES have all the dates, just some dates don't have the value I'm searching for.

Answer 1

If you have data for all dates, but the other dates are being filtered by the where clause, then you can use conditional aggregation:
select CAST(jobrun_proddt as Date) as [Date],
SUM(CASE WHEN jobrun_orgstatus = 66 and jobmst_type <> 1 THEN 1 ELSE 0
END) as [Error Occurred Jobs]
from jobrun
group by jobrun_proddt
order by jobrun_proddt desc

Answer 2

Try this. Use Recursive CTE to generate the Dates.
WITH cte
AS (SELECT CONVERT(DATE, '2014-11-18') AS dates --Max date
UNION ALL
SELECT Dateadd(dd, -1, dates)
FROM cte
WHERE dates > '2014-11-11') -- Min date
SELECT a.dates,
Isnull([Error_Occurred_Jobs], 0)
FROM cte a
LEFT JOIN (SELECT Cast(jobrun_proddt AS DATE) AS Dates,
Count(*) AS [Error_Occurred_Jobs]
FROM jobrun
WHERE jobrun_orgstatus = 66
AND jobmst_type <> 1
GROUP BY jobrun_proddt) B
ON a.dates = b.dates
Order by a.dates desc

Answer 3

You'll have to join to a table or list of generated sequential dates using OUTER JOIN so that for the dates with no matches to your jobrun_orgstatus you can use ISNULL or COALESCE to return 0.

Answer 4

firstly, you must specify a particular date range
then you should connect your table with "left join"
DECLARE #start DATE, #end DATE;
SELECT #start = '20141114', #end = '20141217';
;WITH n AS
(
SELECT TOP (DATEDIFF(DAY, #start, #end) + 1)
n = ROW_NUMBER() OVER (ORDER BY [object_id])
FROM sys.all_objects
)
SELECT 'Bob', DATEADD(DAY, n-1, #start) as 'xdate' FROM n;
select CAST(jobrun_proddt as Date) as 'Date', COUNT(*) as 'Error Occurred Jobs' from jobrun
left join n on DATEADD(DAY, n-1, #start) = jobrun.jobrun_proddt
where jobrun_orgstatus = 66 and jobmst_type <> 1
group by jobrun_proddt
order by jobrun_proddt desc