按时间戳选择组SQL按1分钟间隔

Question

是否可以使用60秒时间戳间隔编写SELECT查询来检索数据？

我想获取数据来制作图表，并且我已将数据转储到MySQL数据库中。我有一个时间戳，目的端口的流量和字节sended：

mysql> select * from eth2_flows limit 1; 
+---------+----------+---------+-------+----------+-----------+-------------+---------------+-------------+---------------+---------------+----------------+-----------+----------+-----------+----------+---------------------+----------------------+----------------------+-------------------+-----------------------+------------------------+-----------------+------------------+----------+---------------+---------------+----------+---------------+---------+-----------+ 
| idx  | IN_BYTES | IN_PKTS | FLOWS | PROTOCOL | TCP_FLAGS | L4_SRC_PORT | IPV4_SRC_ADDR | L4_DST_PORT | IPV4_DST_ADDR | LAST_SWITCHED | FIRST_SWITCHED | OUT_BYTES | OUT_PKTS | ICMP_TYPE | SRC_VLAN | IP_PROTOCOL_VERSION | CLIENT_NW_DELAY_USEC | SERVER_NW_DELAY_USEC | APPL_LATENCY_USEC | RETRANSMITTED_IN_PKTS | RETRANSMITTED_OUT_PKTS | OOORDER_IN_PKTS | OOORDER_OUT_PKTS | L7_PROTO | IPV6_SRC_ADDR | IPV6_DST_ADDR | HTTP_URL | HTTP_RET_CODE | HTTP_UA | HTTP_MIME | 
+---------+----------+---------+-------+----------+-----------+-------------+---------------+-------------+---------------+---------------+----------------+-----------+----------+-----------+----------+---------------------+----------------------+----------------------+-------------------+-----------------------+------------------------+-----------------+------------------+----------+---------------+---------------+----------+---------------+---------+-----------+ 
| 1265340 |  40 |  1 |  0 |  6 |  16 |  4805 | 2886729835 |   139 | 2886729734 | 1344280441 |  1344280441 |  40 |  1 |   0 |  0 |     4 |     0 |     0 |     0 |      0 |      0 |    0 |    0 |  0 |    |    |   |    0 |   |   | 
+---------+----------+---------+-------+----------+-----------+-------------+---------------+-------------+---------------+---------------+----------------+-----------+----------+-----------+----------+---------------------+----------------------+----------------------+-------------------+-----------------------+------------------------+-----------------+------------------+----------+---------------+---------------+----------+---------------+---------+-----------+ 
1 row in set (0.00 sec) 

我需要用一个60秒的时间间隔分组的结果，并添加IN_BYTES和OUT_BYTES获取数据...

是否有可能执行此操作，还是必须在PHP中编写一些代码？

Answer 1

如果您的时间戳存储在LAST_SWITCHED中，它看起来像一个Unix时间戳。这是自1970年以来的秒数。如果这是真的，你可以group by分钟由60除以Unix时间戳：

select LAST_SWITCHED div 60 as StartOfMinuteInterval 
,  sum(IN_BYTES) as SumIn 
,  sum(OUT_BYTES) as SumOut 
group by 
     LAST_SWITCHED div 60 

在MySQL中，div是一个整数除法。所以x div y等于round(x/y)。