MySQL 查询将 timediff() 转换为秒?
mysqlmysqli database更新于 2023/11/26 18:46:00
为此，您可以使用 TIME_TO_SEC() 函数。让我们首先创建一个表 −
mysql> create table DemoTable -> ( -> SourceTime time, -> DestinationTime time -> ); Query OK, 0 rows affected (1.33 sec)
使用 insert 命令在表中插入一些记录 −
mysql> insert into DemoTable values('10:20:00','4:50:54');
Query OK, 1 row affected (0.17 sec)
mysql> insert into DemoTable values('12:05:10','7:45:12');
Query OK, 1 row affected (0.30 sec)
使用 select 语句显示表中的所有记录 −
mysql> select *from DemoTable;
输出
这将产生以下输出 −
+------------+-----------------+ | SourceTime | DestinationTime | +------------+-----------------+ | 10:20:00 | 04:50:54 | | 12:05:10 | 07:45:12 | +------------+-----------------+ 2 rows in set (0.00 sec)
以下是将时差转换为秒的查询 −
mysql> SELECT ABS(TIME_TO_SEC(timediff(DestinationTime, SourceTime))) from DemoTable;
输出
这将产生以下输出 −
+---------------------------------------------------------+ | ABS(TIME_TO_SEC(timediff(DestinationTime, SourceTime))) | +---------------------------------------------------------+ | 19746 | | 15598 | +---------------------------------------------------------+ 2 rows in set (0.00 sec)
