Question

How can select the last records added in 5 seconds, 5 minutes, 5 hours, 5 days, 5 weeks, 5 months, 5 years in one query?

Is it possible to be selected in one query?

sample records include

name | added_timestamp
v | last_five_minutes
k | last_hour
l | last_hour

the timestamps can be pseudo for the actual time

Answer 1

Although you haven’t stated it, I suspect you want totals for the various time periods:

SELECT
  SUM(date_added > NOW() - INTERVAL 5 SECOND) as total_in_last_5_seconds,
  SUM(date_added > NOW() - INTERVAL 5 MINUTE) as total_in_last_5_minutes,
  SUM(date_added > NOW() - INTERVAL 5 HOUR) as total_in_last_5_hours,
  SUM(date_added > NOW() - INTERVAL 5 DAY) as total_in_last_5_days,
  SUM(date_added > NOW() - INTERVAL 5 WEEK) as total_in_last_5_weeks,
  SUM(date_added > NOW() - INTERVAL 5 MONTH) as total_in_last_5_months,
  SUM(date_added > NOW() - INTERVAL 5 YEAR) as total_in_last_5_years
from records;

Edited: Added alternative prompted by comment

If you want the actual records, this will categorize them:

SELECT
  *,
  case
    when date_added > NOW() - INTERVAL 5 SECOND then 'last_5_seconds'
    when date_added > NOW() - INTERVAL 5 MINUTE then 'last_5_minutes'
    when date_added > NOW() - INTERVAL 5 HOUR then 'last_5_hours'
    when date_added > NOW() - INTERVAL 5 DAY then 'last_5_days'
    when date_added > NOW() - INTERVAL 5 WEEK then 'last_5_weeks'
    when date_added > NOW() - INTERVAL 5 MONTH then 'last_5_months'
    when date_added > NOW() - INTERVAL 5 YEAR then 'last_5_years'
    else 'ancient'
  end as time_category
from records;