Shulou(Shulou.com)06/01 Report--

In mysql database, use SQL to calculate the amount of data within ten minutes.

Let's start with the table structure:

The desired result is: how many user_id are there every ten minutes?

Option 1:

Select from_unixtime (floor (UNIX_TIMESTAMP (start_time) / 600) * 600), COUNT (DISTINCT user_id) AS 'count' from user_live_hits_log_history

Group by FLOOR (UNIX_TIMESTAMP (start_time) / 600)

Scheme 2:SELECT RPAD (LEFT (start_time,15), 1914) AS start_time, COUNT (DISTINCT user_id) AS 'count' FROM user_live_hits_log_history GROUP BY LEFT (start_time,15)

As long as you are familiar with the application of these functions, you will find it very simple.

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