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prism

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Fortern
2026-01-28 05:59:46 +08:00
parent 099266cd64
commit c434145fa1
1 changed files with 6 additions and 1 deletions
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PostgreSQL/prism/prism.sql
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@@ -6,8 +6,13 @@ from activities;
select to_timestamp(min(timestamp)) select to_timestamp(min(timestamp))
from activities; from activities;
-- 最大与最小id
select min(activity_id), max(activity_id)
from activities;
-- 数据总量 -- 数据总量
select max(activity_id) - min(activity_id) + 1 from activities; select max(activity_id) - min(activity_id) + 1
from activities;
-- 1天内的数据，按action分组排序 -- 1天内的数据，按action分组排序
select b.action_id, b.action, count(b.action_id) select b.action_id, b.action, count(b.action_id)