Question

I have a problem with query so I have two tables : Job and Job answers,so to get number of answers of every job I do like that :

and ((month(a.created_at) = 10 and day(a.created_at) >= 1) 
      or (month(a.created_at) between 11 and 12) 
      or (month(a.created_at) between 1 and 8) 
      or (month(a.created_at) = 9 and day (a.created_at) <= 30))

Now I have another modification to do is to get a new number of answers of job by per year and between two date ( 1 september and 30 december for every year) [field : created_at] ,

     +----------+-------+---------+------+----- +
     | year     | job title | number of answers |
     +----------+-------+---------+------+------+
     | 2008     | Job1      | 58                | 
     | 2010     | Job2      | 45                | 
     | 2012     | Job3      | 122               |
     +----------+-------+---------+------+------

year and date is in created_at field…

Edit :

for 01/10 to 30/9 I do :

  and ( (month(a.created_at) = 10 and day(a.created_at) >= 1) 
        or month(a.created_at)   between 11 and 12 
        or month(a.created_at) between 1 and 8 
        or (month(a.created_at) = 9 and day (a.created_at) <= 30))

edit 2 :

 delimiter $$
begin

declare @StartDay INT, @EndDay INT, @StartMonth INT, @EndMonth INT
Select @StartDay = 01, @StartMonth = 10, @EndDay = 30, @EndMonth = 09

Select year(a.created_at) as years , jd.JobDomain, count(a.Id) as nb_answer,   a.Job_id,   j.JobTitle 
 from JobAppliance a
 inner join Job j on a.Job_id =  j.PublicId
 inner join JobDestination d on j.Id=d.Job_id
 inner join Jjobdomain jd on  j.Id = jd.Job_id

 and 
(
@StartMonth = @EndMonth And 
Month(a.created_at) = @StartMonth And 
Day(a.created_at) >= @StartDay And 
Day(a.created_at) <= @EndDay
) Or (
@StartMonth != @EndMonth And (
(
 Month(a.created_at) = @StartMonth And
  Day(a.created_at) >= @StartDay
) Or (
  Month(a.created_at) Between @StartMonth + 1 And @EndMonth - 1
) Or (
  Month(a.created_at) = @EndMonth And
  Day(a.created_at) <= @EndDay
)
)
)

group by year(a.created_at) , a.Job_id, j.JobTitle;

end$$
delimiter ;

I have a syntax error in declare?

Answer 1

This should give what you want:

select year(a.created_at) , count(a.Id) as nb_answer, a.Job_id, j.JobTitle 
from JobAnswer a
inner join Job j on a.Job_id =  j.job_id
where month(a.created_at) between 9 and 11 Or (
  month(a.created_at) = 12 and
  day(a.created_at) = 1
)
group by year(a.created_at), a.Job_id, j.JobTitle;

Updated to newly specified date range

A more general solution would be to have a table with start_date, end_date for defining the ranges of interest and joining to that instead.

This might work more generally for a continuous date range within a year, but I haven’t tested it. The idea is that you fill out the values of @StartDay etc that you want

Declare @StartDay int, @EndDay int, @StartMonth int, @EndMonth int
Select @StartDay = 30, @StartMonth = 9, @EndDay = 1, @EndMonth = 12

Select Year(a.created_at), j.JobTitle, count(a.Id) as nb_answer 
from JobAnswer a
inner join Job j on a.Job_id =  j.job_id
where (
  @StartMonth = @EndMonth And 
  Month(a.created_at) = @StartMonth And 
  Day(a.created_at) >= @StartDay And 
  Day(a.created_at) <= @EndDay
) Or (
  @StartMonth != @EndMonth And (
    (
  Month(a.created_at) = @StartMonth And
      Day(a.created_at) >= @StartDay
    ) Or (
      Month(a.created_at) Between @StartMonth + 1 And @EndMonth - 1
    ) Or (
      Month(a.created_at) = @EndMonth And
      Day(a.created_at) <= @EndDay
    )
  )
)
Group By Year(a.created_at), j.JobTitle;