以天为单位显示MySQL正常运行时间

Question

我发现这个SQL查询显示MySQL正常运行时间

SHOW GLOBAL STATUS LIKE 'Uptime';

但我得到的价值2059555

我怎么能在几天内转换它？

Answer 1

在MySQL提示符下键入this,在最后一行我们将找到Uptime

mysql>\s

如果需要写一个查询.这将在几小时和几分钟内给你

select TIME_FORMAT(SEC_TO_TIME(VARIABLE_VALUE ),'%Hh %im')  as Uptime 
from information_schema.GLOBAL_STATUS 
where VARIABLE_NAME='Uptime'

注意: 5.7版以上使用performance_schema而不是information_schema

Answer 2

对于 MySQL 5.7+：

SELECT
  VARIABLE_VALUE AS Uptime_seconds,
  NOW() AS "Now",
  NOW() - INTERVAL VARIABLE_VALUE SECOND AS "Up since",
  DATEDIFF(NOW(), NOW() - INTERVAL VARIABLE_VALUE SECOND) AS "Uptime_days"
FROM performance_schema.session_status
WHERE VARIABLE_NAME = 'Uptime';

例子：

+----------------+---------------------+----------------------------+-------------+
| Uptime_seconds | Now                 | Up since                   | Uptime_days |
+----------------+---------------------+----------------------------+-------------+
| 16430228       | 2021-04-09 14:11:58 | 2020-10-01 10:14:50.000000 |         190 |
+----------------+---------------------+----------------------------+-------------+

Answer 3

您可以运行SHOW GLOBAL STATUS;以查找 的值Uptime，以秒表示。除以 86,400 (60 * 60 * 24) 转换为天。