Hi, We have the following three tables.
safety=> SELECT record_id, record_date FROM record;record_id | record_date
-----------+------------------------ 1 | 2007-07-23 11:30:37+10 2 | 2007-07-27 11:30:14+10 3 |
2007-07-1713:15:03+10
(3 rows)
safety=> SELECT observation_id, record_id, score_id FROM observation;observation_id | record_id | score_id
----------------+-----------+---------- 3240 | 1 | 1 3239 | 1 | 1
3238 | 1 | 2 3237 | 1 | 1 2872 | 2 | 1 2869 |
2 | 2 2870 | 2 | 1 2871 | 2 | 1 3218 | 3
| 2 3217 | 3 | 1
(10 rows)
safety=> SELECT * FROM SCORE;score_id | score_description
----------+------------------- 0 | NA 1 | SAFE 2 | AT RISK
(3 rows)
What query do I write to generate the following?
week_no | count(record_id | count(observation_id) | sum(score_id) where = '1'
2007, 30 | 2 | 8 | 6
2007, 29 | 1 | 2 | 1
