Question

是否可以编写SELECT查询来检索时间间隔为60秒的数据？

我想获取数据来制作图表，并且我将数据转储到MySQL数据库中。我有时间戳，目标端口和发送的字节的流：

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)

我需要获取数据，并以60秒的间隔对结果进行分组，并添加IN_BYTES和OUT_BYTES ......

是否可以执行此操作，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，它看起来像是Unix时间戳。这是自1970年以来的秒数。如果这是真的，你可以通过将Unix时间戳除以60来group by分钟：

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。因此x div y等于round(x / y)。

组SQL按时间戳选择1分钟间隔

1 个答案: