I have a query that counts courses missed by a student on a daily basis. This is secondary students that can miss a maxium of 4 classes
per day. So based on the count if they miss 4 or 5 classes on the same day it is considered missing 1 day of school. If they miss 2 or 3 classes it is one half day missed. We ignore 1 class. I'm not sure how to get total based on those criteria.
For example, below data should have student missing 3 1/2 days.
Student classes missed on this day
0001100111 5 14-10-31
0001100111 4 15-03-03
0001100111 1 15-02-11
0001100111 4 15-04-02
0001100011 3 15-01-12
Here is base query.
t1.person_id as student,
count( t1.calendar_date) as tot_days_absent,
t1.calendar_date as day_absent
FROM period_attendance t1
/* To get school BSID */
INNER JOIN schools t2 ON
t1.school_code = t2.school_code
/* To get the grade */
INNER JOIN student_registrations t5 ON
t1.school_code = t5.school_code AND
t1.school_year = t5.school_year AND
t1.person_id = t5.person_id AND
t5.status_indicator_code = 'Active'
/* To get course and program */
LEFT OUTER JOIN student_program_class_tracks t6 ON
t1.school_code = t6.school_code AND
t1.school_year = t6.school_year AND
t1.school_year_track = t6.school_year_track AND
t1.person_id = t6.person_id AND
t1.class_code = t6.class_code AND
/* logic to include both secondary (first part of OR statement) and
elementary (second part of OR statement) records */
(t6.builder_set_code = 'working') OR
(t6.builder_set_code is null AND t6.course_code is null)
/* This is needed to deal with situations when there can be more than 1 course
for the same student/class - e.g. Student changed from Academic
to College Course */
(t1.calendar_date BETWEEN t6.start_date AND
WHERE t1.class_code is not null
and t1.person_id = 'xxxxxxxxx'
and t1.attendance_code = 'A'
and t1.school_period <> 'HR'
and t6.school_year = '20142015'
and t5.school_year = '20142015'
and t1.school_year = '20142015'
group by t1.person_id,t1.calendar_date
order by t1.person_id;