MySQL的-選擇計數DISTINCT

Question

我有一個包含以下字段的“工作”表：

• work_id
• work_pop_id
• 工作日志
• work_lock

我想為每個DISTINCT “ work_pop_id”顯示表中的記錄數。

謝謝

Answer 1

select count(work_id)
from work
group by work_pop_id

Answer 2

嘗試這個：

select work_pop_id, count(work_id) as work_prop_count
from `work`
group by work_pop_id