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> SELECT datetime(1377168853, 'unixepoch', 'localtime');
    
    +------------------------------------------------+
    | datetime(1377168853, 'unixepoch', 'localtime') |
    +------------------------------------------------+
    | 2013-08-22 18:54:13              |
    +------------------------------------------------+
    1 row in set
    
    sqlite> SELECT strftime('%s','now');
    +----------------------+
    | strftime('%s','now') |
    +----------------------+
    | 1380728519      |
    +----------------------+
    1 row in set
    
    sqlite> SELECT datetime('now');
    +---------------------+
    | datetime('now')   |
    +---------------------+
    | 2013-10-02 15:40:44 |
    +---------------------+
    1 row in set