如何使用 MYSQL 将秒转换为时间 [英] How to convert second to Time using MYSQL

问题描述

您能帮我在 sql 查询中将秒转换为时间吗?我正在使用 MySql 函数 SEC_TO_TIME.

Could you please help me to convert second to time in a sql query. I'm using MySql function SEC_TO_TIME.

TIME_FORMAT(SEC_TO_TIME(COALESCE(ROUND(NBSECONDS), 0)),'%H:%i:%s') AS MYTIME

我必须找到这个函数的替代方法，因为它仅限于838:59:59"，而且我有 1000 多个小时.

I must find an alternative to this function because it's limited to '838:59:59' and I have more than 1000 hours.

谢谢

推荐答案

你可以像这样在 MySQL 中简单地编写你自己的函数:

You can simply write your own function in MySQL like this:

drop function if exists my_sec_to_time;
delimiter $$
create function my_sec_to_time(p_sec int)
returns varchar(10)
deterministic
begin
declare v_hour int;
declare v_minute int;

declare v_tmp_sec int;

set v_hour = floor(p_sec / 3600);
set v_tmp_sec = p_sec - (v_hour * 3600);
set v_minute = floor(v_tmp_sec / 60);
set v_tmp_sec = v_tmp_sec - (v_minute * 60);

return concat(v_hour, ':', v_minute, ':', v_tmp_sec);

end $$

delimiter ;

在行动:

mysql;root@localhost(playground)> select my_sec_to_time(3020399);
+-------------------------+
| my_sec_to_time(3020399) |
+-------------------------+
| 838:59:59               |
+-------------------------+
1 row in set (0.00 sec)

mysql;root@localhost(playground)> select my_sec_to_time(3020400);
+-------------------------+
| my_sec_to_time(3020400) |
+-------------------------+
| 839:0:0                 |
+-------------------------+
1 row in set (0.00 sec)

mysql;root@localhost(playground)> select my_sec_to_time(4020400);
+-------------------------+
| my_sec_to_time(4020400) |
+-------------------------+
| 1116:46:40              |
+-------------------------+
1 row in set (0.00 sec)

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