按時間戳選擇組SQL按1分鐘間隔

Question

是否可以使用60秒時間戳間隔編寫SELECT查詢來檢索數據？

我想獲取數據來製作圖表，並且我已將數據轉儲到MySQL數據庫中。我有一個時間戳，目的端口的流量和字節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) 

我需要用一個60秒的時間間隔分組的結果，並添加IN_BYTES和OUT_BYTES獲取數據...

是否有可能執行此操作，還是必須在PHP中編寫一些代碼？

Answer 1

如果您的時間戳存儲在LAST_SWITCHED中，它看起來像一個Unix時間戳。這是自1970年以來的秒數。如果這是真的，你可以group by分鐘由60除以Unix時間戳：

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是一個整數除法。所以x div y等於round(x/y)。