Question

SqlServer中DateTime类型怎样把输出的秒去掉，只取出年月日和几点几分？

<bean:write name="infor" property="itime" >
itime在SqlServer中是DateTime类型的，但这么直接输出的时间太繁琐了，怎么样能把时间后边的秒去掉呢？

Answer 1

SQL convert 用法
CONVERT(data_type,expression[,style])
convert(varchar(10),字段名,转换格式)

说明:
此样式一般在时间类型(datetime,smalldatetime)与字符串类型(nchar,nvarchar,char,varchar)
相互转换的时候才用到.

例子:
SELECT CONVERT(varchar(30),getdate(),101) now
结果为:
now
---------------------------------------
|09/15/2001

===================================================================

style数字在转换时间时的含义如下:

------------------------------------------------------------------------------------------------------------
Style(2位表示年份) | Style(4位表示年份) | 输入输出格式
------------------------------------------------------------------------------------------------------------
0 | 100 | mon dd yyyy hh:miAM(或PM)
------------------------------------------------------------------------------------------------------------
1 | 101 美国 | mm/dd/yy
------------------------------------------------------------------------------------------------------------
2 | 102 ANSI | yy-mm-dd
------------------------------------------------------------------------------------------------------------
3 | 103 英法 | dd/mm/yy
------------------------------------------------------------------------------------------------------------
4 | 104 德国 | dd.mm.yy
------------------------------------------------------------------------------------------------------------
5 | 105 意大利 | dd-mm-yy
------------------------------------------------------------------------------------------------------------
6 | 106 | dd mon yy
------------------------------------------------------------------------------------------------------------
7 | 107 | mon dd,yy
------------------------------------------------------------------------------------------------------------
8 | 108 | hh:mm:ss
------------------------------------------------------------------------------------------------------------
9 | 109 | mon dd yyyy hh:mi:ss:mmmmAM(或PM)
------------------------------------------------------------------------------------------------------------
10 | 110 美国 | mm-dd-yy
------------------------------------------------------------------------------------------------------------
11 | 111 日本 | yy/mm/dd
------------------------------------------------------------------------------------------------------------
12 | 112 ISO | yymmdd
------------------------------------------------------------------------------------------------------------
13 | 113 欧洲默认值 | dd mon yyyy hh:mi:ss:mmm(24小时制)
------------------------------------------------------------------------------------------------------------
14 | 114 | hh:mi:ss:mmm(24小时制)
------------------------------------------------------------------------------------------------------------
20 | 120 ODBC 规范 | yyyy-mm-dd hh:mi:ss(24小时制)
------------------------------------------------------------------------------------------------------------
21 | 121 | yyyy-mm-dd hh:mi:ss:mmm(24小时制)
------------------------------------------------------------------------------------------------------------

Answer 2

SQL
convert
用法
CONVERT(data_type,expression[,style])
convert(varchar(10),字段名,转换格式)
说明:
此样式一般在时间类型(datetime,smalldatetime)与字符串类型(nchar,nvarchar,char,varchar)
相互转换的时候才用到.
例子:
SELECT
CONVERT(varchar(30),getdate(),101)
now
结果为:
now
---------------------------------------
|09/15/2001
===================================================================
style数字在转换时间时的含义如下:
------------------------------------------------------------------------------------------------------------
Style(2位表示年份)
|
Style(4位表示年份)
|
输入输出格式
------------------------------------------------------------------------------------------------------------
0
|
100
|
mon
dd
yyyy
hh:miAM(或PM)
------------------------------------------------------------------------------------------------------------
1
|
101
美国
|
mm/dd/yy
------------------------------------------------------------------------------------------------------------
2
|
102
ANSI
|
yy-mm-dd
------------------------------------------------------------------------------------------------------------
3
|
103
英法
|
dd/mm/yy
------------------------------------------------------------------------------------------------------------
4
|
104
德国
|
dd.mm.yy
------------------------------------------------------------------------------------------------------------
5
|
105
意大利
|
dd-mm-yy
------------------------------------------------------------------------------------------------------------
6
|
106
|
dd
mon
yy
------------------------------------------------------------------------------------------------------------
7
|
107
|
mon
dd,yy
------------------------------------------------------------------------------------------------------------
8
|
108
|
hh:mm:ss
------------------------------------------------------------------------------------------------------------
9
|
109
|
mon
dd
yyyy
hh:mi:ss:mmmmAM(或PM)
------------------------------------------------------------------------------------------------------------
10
|
110
美国
|
mm-dd-yy
------------------------------------------------------------------------------------------------------------
11
|
111
日本
|
yy/mm/dd
------------------------------------------------------------------------------------------------------------
12
|
112
ISO
|
yymmdd
------------------------------------------------------------------------------------------------------------
13
|
113
欧洲默认值
|
dd
mon
yyyy
hh:mi:ss:mmm(24小时制)
------------------------------------------------------------------------------------------------------------
14
|
114
|
hh:mi:ss:mmm(24小时制)
------------------------------------------------------------------------------------------------------------
20
|
120
ODBC
规范
|
yyyy-mm-dd
hh:mi:ss(24小时制)
------------------------------------------------------------------------------------------------------------
21
|
121
|
yyyy-mm-dd
hh:mi:ss:mmm(24小时制)
------------------------------------------------------------------------------------------------------------

Answer 3

sql
convert
用法
convert(data_type,expression[,style])
convert(varchar(10),字段名,转换格式)
说明:
此样式一般在时间类型(datetime,smalldatetime)与字符串类型(nchar,nvarchar,char,varchar)
相互转换的时候才用到.
例子:
select
convert(varchar(30),getdate(),101)
now
结果为:
now
---------------------------------------
|09/15/2001
===================================================================
style数字在转换时间时的含义如下:
------------------------------------------------------------------------------------------------------------
style(2位表示年份)
|
style(4位表示年份)
|
输入输出格式
------------------------------------------------------------------------------------------------------------
0
|
100
|
mon
dd
yyyy
hh:miam(或pm)
------------------------------------------------------------------------------------------------------------
1
|
101
美国
|
mm/dd/yy
------------------------------------------------------------------------------------------------------------
2
|
102
ansi
|
yy-mm-dd
------------------------------------------------------------------------------------------------------------
3
|
103
英法
|
dd/mm/yy
------------------------------------------------------------------------------------------------------------
4
|
104
德国
|
dd.mm.yy
----------------------------------------------------