sqlite时间戳转时间语句(时间转时间戳)
下面是具体的实现代码：
sqlite>SELECTdatetime(1377168853,'unixepoch','localtime');
+------------------------------------------------+
|datetime(1377168853,'unixepoch','localtime')|
+------------------------------------------------+
|2013-08-2218:54:13|
+------------------------------------------------+
1rowinset
sqlite>SELECTstrftime('%s','now');
+----------------------+
|strftime('%s','now')|
+----------------------+
|1380728519|
+----------------------+
1rowinset
sqlite>SELECTdatetime('now');
+---------------------+
|datetime('now')|
+---------------------+
|2013-10-0215:40:44|
+---------------------+
1rowinset