mysql提供了两个函数:
from_unixtime(time_stamp) -> 将时间戳转换为日期
unix_timestamp(date) -> 将指定的日期或者日期字符串转换为时间戳
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[plain]
select from_unixtime(1382544000);
+---------------------------+
| from_unixtime(1382544000) |
+---------------------------+
| 2013-10-24 00:00:00 |
+---------------------------+
如: unix_timestamp(
date
)
[plain]
select unix_timestamp(
date
(
'2013-10-24'
));
+------------------------------------+
| unix_timestamp(
date
(
'2013-10-24'
)) |
+------------------------------------+
| 1382544000 |
+------------------------------------+
如果要查询当天的订单的记录:
[plain]
select
count
(*) from b_order Where date_format(from_unixtime(create_time),
'%Y-%m-%d'
) = date_format(now(),
'%Y-%m-%d'
)
也可以这样:
[plain]
select
count
(*) from b_order Where create_time >= unix_timestamp(
'2013-10-24 00:00:00'
)
and
create_time <= unix_timestamp(
'2013-10-24 23:59:59'
) ;
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