转换DATE时间戳以返回月份号
要仅返回月份号，可以使用DATE_FORMAT()-
mysql> create table DemoTable1999 ( ArrivalDate timestamp );
使用插入命令在表中插入一些记录-
mysql> insert into DemoTable1999 values('2019-01-01 12:34:00');
mysql> insert into DemoTable1999 values('2019-12-31 10:04:00');
mysql> insert into DemoTable1999 values('2018-10-11 04:04:30');使用select语句显示表中的所有记录-
mysql> select * from DemoTable1999;
这将产生以下输出-
+---------------------+ | ArrivalDate | +---------------------+ | 2019-01-01 12:34:00 | | 2019-12-31 10:04:00 | | 2018-10-11 04:04:30 | +---------------------+ 3 rows in set (0.00 sec)
这是返回月份号的查询-
mysql> select date_format(ArrivalDate,'%m') as MonthName from DemoTable1999;
这将产生以下输出-
+-----------+ | MonthName | +-----------+ | 01 | | 12 | | 10 | +-----------+ 3 rows in set (0.00 sec)