英文:
Request with count and group by
问题
select id_person
from table
where date is null
group by id_person
having count(id_person) > 1000
英文:
| id | id_person | id_equipement | date |
|---|---|---|---|
| 1 | 1 | 250 | [date_1] |
| 2 | 2 | 250 | [date_2] |
| 3 | 3 | 50 | null |
| 4 | 2 | 50 | [date_3] |
I want to get the id of every person for which there is more than 1000 line and the date is null.
I tried with :
select id_person
from table
where date is null
group by id_equipement
having count(is_equipement) > 1000
答案1
得分: 1
select id_person
from table
where date is null
group by id_person
having count(id_person) > 1000
英文:
You can try this as you need the id of persons appearing more than 1000 times
select id_person
from table
where date is null
group by id_person
having count(id_person) > 1000
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