先来看语汇法
代码如下 | 复制代码 |
CONVERT(data_type(length),data_to_be_converted,style) |
例1
代码如下 | 复制代码 |
SELECT CONVERT(varchar(30),getdate(),101) now |
结果为:
now
---------------------------------------
|03/8/2013
例2
代码如下 | 复制代码 |
1> select CONVERT(varchar(8),getdate(),112) 2> go 20130308 (1 row affected) 1> select CONVERT(varchar(10),getdate(),105) 2> go 08-03-2013 (1 row affected) 1> select getdate() 2> go 2013-03-08 10:30:30 (1 row affected) 1> |
获取某天所有的数据
代码如下 | 复制代码 |
1> select * from s_sign_log 2> go id user_id room_id create_time 1 297211672 8586 2013-03-07 16:05:52 2 297211672 8588 2013-03-07 16:17:18 3 297211671 8588 2013-03-07 16:25:14 4 297211671 9983 2013-03-07 18:21:55 5 297211671 9983 2013-03-08 10:33:17 (5 rows affected) |
调出昨天的数据
代码如下 | 复制代码 |
1> select * from s_sign_log where CONVERT(varchar(8),create_time,112) = CONVERT(varchar(8),dateadd(dd,-1,getdate()),112) 2> go id user_id room_id create_time 1 297211672 8586 2013-03-07 16:05:52 2 297211672 8588 2013-03-07 16:17:18 3 297211671 8588 2013-03-07 16:25:14 4 297211671 9983 2013-03-07 18:21:55 (4 rows affected) |
语句及查询结果:
代码如下 | 复制代码 |
SELECT CONVERT(varchar(100), GETDATE(), 0): 05 16 2006 10:57AM SELECT CONVERT(varchar(100), GETDATE(), 1): 05/16/06 SELECT CONVERT(varchar(100), GETDATE(), 2): 06.05.16 SELECT CONVERT(varchar(100), GETDATE(), 3): 16/05/06 SELECT CONVERT(varchar(100), GETDATE(), 4): 16.05.06 SELECT CONVERT(varchar(100), GETDATE(), 5): 16-05-06 SELECT CONVERT(varchar(100), GETDATE(), 6): 16 05 06 SELECT CONVERT(varchar(100), GETDATE(), 7): 05 16, 06 SELECT CONVERT(varchar(100), GETDATE(), 8): 10:57:46 SELECT CONVERT(varchar(100), GETDATE(), 9): 05 16 2006 10:57:46:827AM SELECT CONVERT(varchar(100), GETDATE(), 10): 05-16-06 SELECT CONVERT(varchar(100), GETDATE(), 11): 06/05/16 SELECT CONVERT(varchar(100), GETDATE(), 12): 060516 SELECT CONVERT(varchar(100), GETDATE(), 13): 16 05 2006 10:57:46:937 SELECT CONVERT(varchar(100), GETDATE(), 14): 10:57:46:967 SELECT CONVERT(varchar(100), GETDATE(), 20): 2006-05-16 10:57:47 SELECT CONVERT(varchar(100), GETDATE(), 21): 2006-05-16 10:57:47.157 SELECT CONVERT(varchar(100), GETDATE(), 22): 05/16/06 10:57:47 AM SELECT CONVERT(varchar(100), GETDATE(), 23): 2006-05-16 SELECT CONVERT(varchar(100), GETDATE(), 24): 10:57:47 SELECT CONVERT(varchar(100), GETDATE(), 25): 2006-05-16 10:57:47.250 SELECT CONVERT(varchar(100), GETDATE(), 100): 05 16 2006 10:57AM SELECT CONVERT(varchar(100), GETDATE(), 101): 05/16/2006 SELECT CONVERT(varchar(100), GETDATE(), 102): 2006.05.16 SELECT CONVERT(varchar(100), GETDATE(), 103): 16/05/2006 SELECT CONVERT(varchar(100), GETDATE(), 104): 16.05.2006 SELECT CONVERT(varchar(100), GETDATE(), 105): 16-05-2006 SELECT CONVERT(varchar(100), GETDATE(), 106): 16 05 2006 SELECT CONVERT(varchar(100), GETDATE(), 107): 05 16, 2006 SELECT CONVERT(varchar(100), GETDATE(), 108): 10:57:49 SELECT CONVERT(varchar(100), GETDATE(), 109): 05 16 2006 10:57:49:437AM SELECT CONVERT(varchar(100), GETDATE(), 110): 05-16-2006 SELECT CONVERT(varchar(100), GETDATE(), 111): 2006/05/16 SELECT CONVERT(varchar(100), GETDATE(), 112): 20060516 SELECT CONVERT(varchar(100), GETDATE(), 113): 16 05 2006 10:57:49:513 SELECT CONVERT(varchar(100), GETDATE(), 114): 10:57:49:547 SELECT CONVERT(varchar(100), GETDATE(), 120): 2006-05-16 10:57:49 SELECT CONVERT(varchar(100), GETDATE(), 121): 2006 |
时间: 2024-09-18 09:41:23