代码语言
.
CSharp
.
JS
Java
Asp.Net
C
MSSQL
PHP
Css
PLSQL
Python
Shell
EBS
ASP
Perl
ObjC
VB.Net
VBS
MYSQL
GO
Delphi
AS
DB2
Domino
Rails
ActionScript
Scala
代码分类
文件
系统
字符串
数据库
网络相关
图形/GUI
多媒体
算法
游戏
Jquery
Extjs
Android
HTML5
菜单
网页交互
WinForm
控件
企业应用
安全与加密
脚本/批处理
开放平台
其它
【
MSSQL
】
日期处理方法
作者:
Dezai.CN
/ 发布于
2011/8/9
/
750
<div><span style="color: rgb(128,0,0); font-weight: bold">1</span><span style="color: rgb(0,0,0)">)去掉时分秒 </span><span style="color: rgb(0,0,255)">declare</span><span style="color: rgb(0,0,0)"> @ </span><span style="color: rgb(0,0,255)">datetime</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">set</span><span style="color: rgb(0,0,0)"> @ </span><span style="color: rgb(128,128,128)">=</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(255,0,255)">getdate</span><span style="color: rgb(0,0,0)">() </span><span style="color: rgb(0,128,128)">--</span><span style="color: rgb(0,128,128)">'2003-7-1 10:00:00' </span><span style="color: rgb(0,128,128)"> </span><span style="color: rgb(0,0,255)">SELECT</span><span style="color: rgb(0,0,0)"> @,</span><span style="color: rgb(255,0,255)">DATEADD</span><span style="color: rgb(0,0,0)">(</span><span style="color: rgb(255,0,255)">day</span><span style="color: rgb(0,0,0)">, </span><span style="color: rgb(255,0,255)">DATEDIFF</span><span style="color: rgb(0,0,0)">(</span><span style="color: rgb(255,0,255)">day</span><span style="color: rgb(0,0,0)">,</span><span style="color: rgb(128,0,0); font-weight: bold">0</span><span style="color: rgb(0,0,0)">,@), </span><span style="color: rgb(128,0,0); font-weight: bold">0</span><span style="color: rgb(0,0,0)">) </span><span style="color: rgb(128,0,0); font-weight: bold">2</span><span style="color: rgb(0,0,0)">)显示星期几 </span><span style="color: rgb(0,0,255)">select</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(255,0,255)">datename</span><span style="color: rgb(0,0,0)">(weekday,</span><span style="color: rgb(255,0,255)">getdate</span><span style="color: rgb(0,0,0)">()) </span><span style="color: rgb(128,0,0); font-weight: bold">3</span><span style="color: rgb(0,0,0)">)如何取得某个月的天数 </span><span style="color: rgb(0,0,255)">declare</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,128,0)">@m</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">int</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">set</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,128,0)">@m</span><span style="color: rgb(128,128,128)">=</span><span style="color: rgb(128,0,0); font-weight: bold">2</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,128,128)">--</span><span style="color: rgb(0,128,128)">月份 </span><span style="color: rgb(0,128,128)"> </span><span style="color: rgb(0,0,255)">select</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(255,0,255)">datediff</span><span style="color: rgb(0,0,0)">(</span><span style="color: rgb(255,0,255)">day</span><span style="color: rgb(0,0,0)">,</span><span style="color: rgb(255,0,0)">'</span><span style="color: rgb(255,0,0)">2003-</span><span style="color: rgb(255,0,0)">'</span><span style="color: rgb(128,128,128)">+</span><span style="color: rgb(255,0,255)">cast</span><span style="color: rgb(0,0,0)">(</span><span style="color: rgb(0,128,0)">@m</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">as</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">varchar</span><span style="color: rgb(0,0,0)">)</span><span style="color: rgb(128,128,128)">+</span><span style="color: rgb(255,0,0)">'</span><span style="color: rgb(255,0,0)">-15</span><span style="color: rgb(255,0,0)">'</span><span style="color: rgb(0,0,0)"> ,</span><span style="color: rgb(255,0,0)">'</span><span style="color: rgb(255,0,0)">2003-</span><span style="color: rgb(255,0,0)">'</span><span style="color: rgb(128,128,128)">+</span><span style="color: rgb(255,0,255)">cast</span><span style="color: rgb(0,0,0)">(</span><span style="color: rgb(0,128,0)">@m</span><span style="color: rgb(128,128,128)">+</span><span style="color: rgb(128,0,0); font-weight: bold">1</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">as</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">varchar</span><span style="color: rgb(0,0,0)">)</span><span style="color: rgb(128,128,128)">+</span><span style="color: rgb(255,0,0)">'</span><span style="color: rgb(255,0,0)">-15</span><span style="color: rgb(255,0,0)">'</span><span style="color: rgb(0,0,0)">) 另外,取得本月天数 </span><span style="color: rgb(0,0,255)">select</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(255,0,255)">datediff</span><span style="color: rgb(0,0,0)">(</span><span style="color: rgb(255,0,255)">day</span><span style="color: rgb(0,0,0)">,</span><span style="color: rgb(255,0,255)">cast</span><span style="color: rgb(0,0,0)">(</span><span style="color: rgb(255,0,255)">month</span><span style="color: rgb(0,0,0)">(</span><span style="color: rgb(255,0,255)">GetDate</span><span style="color: rgb(0,0,0)">()) </span><span style="color: rgb(0,0,255)">as</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">varchar</span><span style="color: rgb(0,0,0)">)</span><span style="color: rgb(128,128,128)">+</span><span style="color: rgb(255,0,0)">'</span><span style="color: rgb(255,0,0)">-</span><span style="color: rgb(255,0,0)">'</span><span style="color: rgb(128,128,128)">+</span><span style="color: rgb(255,0,255)">cast</span><span style="color: rgb(0,0,0)">(</span><span style="color: rgb(255,0,255)">month</span><span style="color: rgb(0,0,0)">(</span><span style="color: rgb(255,0,255)">GetDate</span><span style="color: rgb(0,0,0)">()) </span><span style="color: rgb(0,0,255)">as</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">varchar</span><span style="color: rgb(0,0,0)">)</span><span style="color: rgb(128,128,128)">+</span><span style="color: rgb(255,0,0)">'</span><span style="color: rgb(255,0,0)">-15</span><span style="color: rgb(255,0,0)">'</span><span style="color: rgb(0,0,0)"> ,</span><span style="color: rgb(255,0,255)">cast</span><span style="color: rgb(0,0,0)">(</span><span style="color: rgb(255,0,255)">month</span><span style="color: rgb(0,0,0)">(</span><span style="color: rgb(255,0,255)">GetDate</span><span style="color: rgb(0,0,0)">()) </span><span style="color: rgb(0,0,255)">as</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">varchar</span><span style="color: rgb(0,0,0)">)</span><span style="color: rgb(128,128,128)">+</span><span style="color: rgb(255,0,0)">'</span><span style="color: rgb(255,0,0)">-</span><span style="color: rgb(255,0,0)">'</span><span style="color: rgb(128,128,128)">+</span><span style="color: rgb(255,0,255)">cast</span><span style="color: rgb(0,0,0)">(</span><span style="color: rgb(255,0,255)">month</span><span style="color: rgb(0,0,0)">(</span><span style="color: rgb(255,0,255)">GetDate</span><span style="color: rgb(0,0,0)">())</span><span style="color: rgb(128,128,128)">+</span><span style="color: rgb(128,0,0); font-weight: bold">1</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">as</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">varchar</span><span style="color: rgb(0,0,0)">)</span><span style="color: rgb(128,128,128)">+</span><span style="color: rgb(255,0,0)">'</span><span style="color: rgb(255,0,0)">-15</span><span style="color: rgb(255,0,0)">'</span><span style="color: rgb(0,0,0)">) 任意月份的最大天数 </span><span style="color: rgb(0,0,255)">select</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(255,0,255)">day</span><span style="color: rgb(0,0,0)">(</span><span style="color: rgb(255,0,255)">dateadd</span><span style="color: rgb(0,0,0)">(dd,</span><span style="color: rgb(128,128,128)">-</span><span style="color: rgb(128,0,0); font-weight: bold">1</span><span style="color: rgb(0,0,0)">,</span><span style="color: rgb(255,0,255)">dateadd</span><span style="color: rgb(0,0,0)">(mm,</span><span style="color: rgb(128,0,0); font-weight: bold">1</span><span style="color: rgb(0,0,0)">,</span><span style="color: rgb(255,0,255)">Dateadd</span><span style="color: rgb(0,0,0)">(mm,</span><span style="color: rgb(255,0,255)">datediff</span><span style="color: rgb(0,0,0)">(mm,</span><span style="color: rgb(128,0,0); font-weight: bold">0</span><span style="color: rgb(0,0,0)">,</span><span style="color: rgb(255,0,255)">getdate</span><span style="color: rgb(0,0,0)">()),</span><span style="color: rgb(128,0,0); font-weight: bold">0</span><span style="color: rgb(0,0,0)">)))) 或者使用计算本月的最后一天的脚本,然后用DAY函数区最后一天 </span><span style="color: rgb(0,0,255)">SELECT</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(255,0,255)">Day</span><span style="color: rgb(0,0,0)">(</span><span style="color: rgb(255,0,255)">dateadd</span><span style="color: rgb(0,0,0)">(ms,</span><span style="color: rgb(128,128,128)">-</span><span style="color: rgb(128,0,0); font-weight: bold">3</span><span style="color: rgb(0,0,0)">,</span><span style="color: rgb(255,0,255)">DATEADD</span><span style="color: rgb(0,0,0)">(mm, </span><span style="color: rgb(255,0,255)">DATEDIFF</span><span style="color: rgb(0,0,0)">(m,</span><span style="color: rgb(128,0,0); font-weight: bold">0</span><span style="color: rgb(0,0,0)">,</span><span style="color: rgb(255,0,255)">getdate</span><span style="color: rgb(0,0,0)">())</span><span style="color: rgb(128,128,128)">+</span><span style="color: rgb(128,0,0); font-weight: bold">1</span><span style="color: rgb(0,0,0)">, </span><span style="color: rgb(128,0,0); font-weight: bold">0</span><span style="color: rgb(0,0,0)">))) </span><span style="color: rgb(128,0,0); font-weight: bold">4</span><span style="color: rgb(0,0,0)">)判断是否闰年: </span><span style="color: rgb(0,0,255)">SELECT</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(255,0,255)">case</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(255,0,255)">day</span><span style="color: rgb(0,0,0)">(</span><span style="color: rgb(255,0,255)">dateadd</span><span style="color: rgb(0,0,0)">(mm, </span><span style="color: rgb(128,0,0); font-weight: bold">2</span><span style="color: rgb(0,0,0)">, </span><span style="color: rgb(255,0,255)">dateadd</span><span style="color: rgb(0,0,0)">(ms,</span><span style="color: rgb(128,128,128)">-</span><span style="color: rgb(128,0,0); font-weight: bold">3</span><span style="color: rgb(0,0,0)">,</span><span style="color: rgb(255,0,255)">DATEADD</span><span style="color: rgb(0,0,0)">(yy, </span><span style="color: rgb(255,0,255)">DATEDIFF</span><span style="color: rgb(0,0,0)">(yy,</span><span style="color: rgb(128,0,0); font-weight: bold">0</span><span style="color: rgb(0,0,0)">,</span><span style="color: rgb(255,0,255)">getdate</span><span style="color: rgb(0,0,0)">()), </span><span style="color: rgb(128,0,0); font-weight: bold">0</span><span style="color: rgb(0,0,0)">)))) </span><span style="color: rgb(0,0,255)">when</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,0); font-weight: bold">28</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">then</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(255,0,0)">'</span><span style="color: rgb(255,0,0)">平年</span><span style="color: rgb(255,0,0)">'</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">else</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(255,0,0)">'</span><span style="color: rgb(255,0,0)">闰年</span><span style="color: rgb(255,0,0)">'</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">end</span><span style="color: rgb(0,0,0)"> 或者 </span><span style="color: rgb(0,0,255)">select</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(255,0,255)">case</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(255,0,255)">datediff</span><span style="color: rgb(0,0,0)">(</span><span style="color: rgb(255,0,255)">day</span><span style="color: rgb(0,0,0)">,</span><span style="color: rgb(255,0,255)">datename</span><span style="color: rgb(0,0,0)">(</span><span style="color: rgb(255,0,255)">year</span><span style="color: rgb(0,0,0)">,</span><span style="color: rgb(255,0,255)">getdate</span><span style="color: rgb(0,0,0)">())</span><span style="color: rgb(128,128,128)">+</span><span style="color: rgb(255,0,0)">'</span><span style="color: rgb(255,0,0)">-02-01</span><span style="color: rgb(255,0,0)">'</span><span style="color: rgb(0,0,0)">,</span><span style="color: rgb(255,0,255)">dateadd</span><span style="color: rgb(0,0,0)">(mm,</span><span style="color: rgb(128,0,0); font-weight: bold">1</span><span style="color: rgb(0,0,0)">,</span><span style="color: rgb(255,0,255)">datename</span><span style="color: rgb(0,0,0)">(</span><span style="color: rgb(255,0,255)">year</span><span style="color: rgb(0,0,0)">,</span><span style="color: rgb(255,0,255)">getdate</span><span style="color: rgb(0,0,0)">())</span><span style="color: rgb(128,128,128)">+</span><span style="color: rgb(255,0,0)">'</span><span style="color: rgb(255,0,0)">-02-01</span><span style="color: rgb(255,0,0)">'</span><span style="color: rgb(0,0,0)">)) </span><span style="color: rgb(0,0,255)">when</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,0); font-weight: bold">28</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">then</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(255,0,0)">'</span><span style="color: rgb(255,0,0)">平年</span><span style="color: rgb(255,0,0)">'</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">else</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(255,0,0)">'</span><span style="color: rgb(255,0,0)">闰年</span><span style="color: rgb(255,0,0)">'</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">end</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,0); font-weight: bold">5</span><span style="color: rgb(0,0,0)">)一个季度多少天 </span><span style="color: rgb(0,0,255)">declare</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,128,0)">@m</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">tinyint</span><span style="color: rgb(0,0,0)">,</span><span style="color: rgb(0,128,0)">@time</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">smalldatetime</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">select</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,128,0)">@m</span><span style="color: rgb(128,128,128)">=</span><span style="color: rgb(255,0,255)">month</span><span style="color: rgb(0,0,0)">(</span><span style="color: rgb(255,0,255)">getdate</span><span style="color: rgb(0,0,0)">()) </span><span style="color: rgb(0,0,255)">select</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,128,0)">@m</span><span style="color: rgb(128,128,128)">=</span><span style="color: rgb(255,0,255)">case</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">when</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,128,0)">@m</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,128,128)">between</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,0); font-weight: bold">1</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,128,128)">and</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,0); font-weight: bold">3</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">then</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,0); font-weight: bold">1</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">when</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,128,0)">@m</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,128,128)">between</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,0); font-weight: bold">4</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,128,128)">and</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,0); font-weight: bold">6</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">then</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,0); font-weight: bold">4</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">when</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,128,0)">@m</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,128,128)">between</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,0); font-weight: bold">7</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,128,128)">and</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,0); font-weight: bold">9</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">then</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,0); font-weight: bold">7</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">else</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(128,0,0); font-weight: bold">10</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">end</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">select</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,128,0)">@time</span><span style="color: rgb(128,128,128)">=</span><span style="color: rgb(255,0,255)">datename</span><span style="color: rgb(0,0,0)">(</span><span style="color: rgb(255,0,255)">year</span><span style="color: rgb(0,0,0)">,</span><span style="color: rgb(255,0,255)">getdate</span><span style="color: rgb(0,0,0)">())</span><span style="color: rgb(128,128,128)">+</span><span style="color: rgb(255,0,0)">'</span><span style="color: rgb(255,0,0)">-</span><span style="color: rgb(255,0,0)">'</span><span style="color: rgb(128,128,128)">+</span><span style="color: rgb(255,0,255)">convert</span><span style="color: rgb(0,0,0)">(</span><span style="color: rgb(0,0,255)">varchar</span><span style="color: rgb(0,0,0)">(</span><span style="color: rgb(128,0,0); font-weight: bold">10</span><span style="color: rgb(0,0,0)">),</span><span style="color: rgb(0,128,0)">@m</span><span style="color: rgb(0,0,0)">)</span><span style="color: rgb(128,128,128)">+</span><span style="color: rgb(255,0,0)">'</span><span style="color: rgb(255,0,0)">-01</span><span style="color: rgb(255,0,0)">'</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(0,0,255)">select</span><span style="color: rgb(0,0,0)"> </span><span style="color: rgb(255,0,255)">datediff</span><span style="color: rgb(0,0,0)">(</span><span style="color: rgb(255,0,255)">day</span><span style="color: rgb(0,0,0)">,</span><span style="color: rgb(0,128,0)">@time</span><span style="color: rgb(0,0,0)">,</span><span style="color: rgb(255,0,255)">dateadd</span><span style="color: rgb(0,0,0)">(mm,</span><span style="color: rgb(128,0,0); font-weight: bold">3</span><span style="color: rgb(0,0,0)">,</span><span style="color: rgb(0,128,0)">@time</span><span style="color: rgb(0,0,0)">)) </span></div>
试试其它关键字
日期处理
同语言下
.
SQL查询 多列合并成一行用逗号隔开
.
查看存储过程修改时间,最近执行时间
.
设置手动批量删除数据库相关进程
.
获取某个表中特定字段的所有字符串形式
.
SQL 如何去除重复的字符串
.
怎么去掉一个字段中的重复数据
.
String 去除空格 回车 换行 水平制表符
.
SQL查询和替换含有回车,空格,TAB
.
SQL SERVER 查询每日新增用户数量、次留数量
.
判断两个字符串是否存在相同的内容
可能有用的
.
C#实现的html内容截取
.
List 切割成几份 工具类
.
SQL查询 多列合并成一行用逗号隔开
.
一行一行读取txt的内容
.
C#动态修改文件夹名称(FSO实现,不移动文件)
.
c# 移动文件或文件夹
.
c#图片添加水印
.
Java PDF转换成图片并输出给前台展示
.
网站后台修改图片尺寸代码
.
处理大图片在缩略图时的展示
Dezai.CN
贡献的其它代码
(
4037
)
.
多线程Socket服务器模块
.
生成随机密码
.
清除浮动样式
.
弹出窗口居中
.
抓取url的函数
.
使用base HTTP验证
.
div模拟iframe嵌入效果
.
通过header转向的方法
.
Session操作类
.
执行sqlite输入插入操作后获得自动编号的ID
Copyright © 2004 - 2024 dezai.cn. All Rights Reserved
站长博客
粤ICP备13059550号-3