计算两个日期之间的工作日代码,MSSQL代码库,德仔网

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【MSSQL】计算两个日期之间的工作日
作者:maco_wang / 发布于2012/2/8/ 903
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<p align="left" class="MsoNormal" style="margin: 0cm 0cm 0pt; text-align: left; mso-layout-grid-align: none;"><span lang="EN-US" style="font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;">go</span>
<p align="left" class="MsoNormal" style="margin: 0cm 0cm 0pt; text-align: left; mso-layout-grid-align: none;"><span lang="EN-US" style="color: green; font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;">--</span><span style="color: green; font-family: 宋体; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes; mso-ascii-font-family: "Courier New"; mso-hansi-font-family: "Courier New"; mso-bidi-font-family: "Courier New";">创建函数</span><span lang="EN-US" style="color: green; font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;">(CSDN fredrickhu(</span><span style="color: green; font-family: 宋体; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes; mso-ascii-font-family: "Courier New"; mso-hansi-font-family: "Courier New"; mso-bidi-font-family: "Courier New";">小</span><span lang="EN-US" style="color: green; font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;">F)</span><span style="color: green; font-family: 宋体; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes; mso-ascii-font-family: "Courier New"; mso-hansi-font-family: "Courier New"; mso-bidi-font-family: "Courier New";">提供</span><span lang="EN-US" style="color: green; font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;">)</span>
<p align="left" class="MsoNormal" style="margin: 0cm 0cm 0pt; text-align: left; mso-layout-grid-align: none;"><span lang="EN-US" style="color: blue; font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;">CREATE</span><span lang="EN-US" style="font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;"> <span style="color: blue;">FUNCTION</span> f_WorkDay</span>
<p align="left" class="MsoNormal" style="margin: 0cm 0cm 0pt; text-align: left; mso-layout-grid-align: none;"><span lang="EN-US" style="color: gray; font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;">(</span><span lang="EN-US" style="font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;"> </span>
<p align="left" class="MsoNormal" style="margin: 0cm 0cm 0pt; text-align: left; mso-layout-grid-align: none;"><span lang="EN-US" style="font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;"><span style="mso-tab-count: 1;">    </span>@dt_begin<span style="mso-spacerun: yes;">   </span><span style="color: blue;">datetime</span><span style="color: gray;">,</span><span style="mso-spacerun: yes;">     </span><span style="color: green;">--</span></span><span style="color: green; font-family: 宋体; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes; mso-ascii-font-family: "Courier New"; mso-hansi-font-family: "Courier New"; mso-bidi-font-family: "Courier New";">计算的开始日期</span>
<p align="left" class="MsoNormal" style="margin: 0cm 0cm 0pt; text-align: left; mso-layout-grid-align: none;"><span lang="EN-US" style="font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;"><span style="mso-tab-count: 1;">    </span>@dt_end<span style="mso-spacerun: yes;">     </span><span style="color: blue;">datetime</span><span style="mso-spacerun: yes;">      </span><span style="color: green;">--</span></span><span style="color: green; font-family: 宋体; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes; mso-ascii-font-family: "Courier New"; mso-hansi-font-family: "Courier New"; mso-bidi-font-family: "Courier New";">计算的结束日期</span>
<p align="left" class="MsoNormal" style="margin: 0cm 0cm 0pt; text-align: left; mso-layout-grid-align: none;"><span lang="EN-US" style="color: gray; font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;">)</span><span lang="EN-US" style="color: blue; font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;">RETURNS</span><span lang="EN-US" style="font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;"><span style="mso-spacerun: yes;">   </span><span style="color: blue;">int</span> </span>
<p align="left" class="MsoNormal" style="margin: 0cm 0cm 0pt; text-align: left; mso-layout-grid-align: none;"><span lang="EN-US" style="color: blue; font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;">AS</span><span lang="EN-US" style="font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;"> </span>
<p align="left" class="MsoNormal" style="margin: 0cm 0cm 0pt; text-align: left; mso-layout-grid-align: none;"><span lang="EN-US" style="color: blue; font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;">BEGIN</span><span lang="EN-US" style="font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;"> </span>
<p align="left" class="MsoNormal" style="margin: 0cm 0cm 0pt; text-align: left; mso-layout-grid-align: none;"><span lang="EN-US" style="font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;"><span style="mso-spacerun: yes;">    </span><span style="color: blue;">DECLARE</span> @workday <span style="color: blue;">int</span><span style="color: gray;">,</span>@i <span style="color: blue;">int</span><span style="color: gray;">,</span>@bz <span style="color: blue;">bit</span><span style="color: gray;">,</span>@dt <span style="color: blue;">datetime</span> </span>
<p align="left" class="MsoNormal" style="margin: 0cm 0cm 0pt; text-align: left; mso-layout-grid-align: none;"><span lang="EN-US" style="font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;"><span style="mso-spacerun: yes;">    </span><span style="color: blue;">IF</span> @dt_begin<span style="color: gray;">></span> @dt_end </span>
<p align="left" class="MsoNormal" style="margin: 0cm 0cm 0pt; text-align: left; mso-layout-grid-align: none;"><span lang="EN-US" style="font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;"><span style="mso-spacerun: yes;">       </span><span style="color: blue;">SELECT</span> @bz<span style="color: gray;">=</span>1<span style="color: gray;">,</span>@dt<span style="color: gray;">=</span>@dt_begin<span style="color: gray;">,</span>@dt_begin<span style="color: gray;">=</span>@dt_end<span style="color: gray;">,</span>@dt_end<span style="color: gray;">=</span>@dt </span>
<p align="left" class="MsoNormal" style="margin: 0cm 0cm 0pt; text-align: left; mso-layout-grid-align: none;"><span lang="EN-US" style="font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;"><span style="mso-spacerun: yes;">    </span><span style="color: blue;">ELSE</span> </span>
<p align="left" class="MsoNormal" style="margin: 0cm 0cm 0pt; text-align: left; mso-layout-grid-align: none;"><span lang="EN-US" style="font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;"><span style="mso-spacerun: yes;">       </span><span style="color: blue;">SET</span> @bz<span style="color: gray;">=</span>0 </span>
<p align="left" class="MsoNormal" style="margin: 0cm 0cm 0pt; text-align: left; mso-layout-grid-align: none;"><span lang="EN-US" style="font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;"><span style="mso-spacerun: yes;">    </span><span style="color: blue;">SELECT</span> @i<span style="color: gray;">=</span><span style="color: fuchsia;">DATEDIFF</span><span style="color: gray;">(</span><span style="color: fuchsia;">Day</span><span style="color: gray;">,</span>@dt_begin<span style="color: gray;">,</span>@dt_end<span style="color: gray;">)+</span>1<span style="color: gray;">,</span> @workday<span style="color: gray;">=</span>@i<span style="color: gray;">/</span>7<span style="color: gray;">*</span>5<span style="color: gray;">,</span> </span>
<p align="left" class="MsoNormal" style="margin: 0cm 0cm 0pt; text-align: left; mso-layout-grid-align: none;"><span lang="EN-US" style="font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;"><span style="mso-spacerun: yes;">           </span>@dt_begin<span style="color: gray;">=</span><span style="color: fuchsia;">DATEADD</span><span style="color: gray;">(</span><span style="color: fuchsia;">Day</span><span style="color: gray;">,</span>@i<span style="color: gray;">/</span>7<span style="color: gray;">*</span>7<span style="color: gray;">,</span>@dt_begin<span style="color: gray;">)</span> </span>
<p align="left" class="MsoNormal" style="margin: 0cm 0cm 0pt; text-align: left; mso-layout-grid-align: none;"><span lang="EN-US" style="font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;"><span style="mso-spacerun: yes;">    </span><span style="color: blue;">WHILE</span><span style="mso-spacerun: yes;">  </span>@dt_begin <span style="color: gray;"><=</span>@dt_end </span>
<p align="left" class="MsoNormal" style="margin: 0cm 0cm 0pt; text-align: left; mso-layout-grid-align: none;"><span lang="EN-US" style="font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;"><span style="mso-spacerun: yes;">    </span><span style="color: blue;">BEGIN</span> </span>
<p align="left" class="MsoNormal" style="margin: 0cm 0cm 0pt; text-align: left; mso-layout-grid-align: none;"><span lang="EN-US" style="font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;"><span style="mso-spacerun: yes;">       </span><span style="color: blue;">SELECT</span><span style="mso-spacerun: yes;">   </span>@workday<span style="color: gray;">=</span><span style="color: blue;">CASE</span> <span style="color: blue;">WHEN</span> <span style="color: gray;">(</span><span style="color: fuchsia;">@@DATEFIRST</span><span style="color: gray;">+</span><span style="color: fuchsia;">DATEPART</span><span style="color: gray;">(</span>Weekday<span style="color: gray;">,</span>@dt_begin<span style="color: gray;">)-</span>1<span style="color: gray;">)%</span>7<span style="mso-spacerun: yes;">   </span></span>
<p align="left" class="MsoNormal" style="margin: 0cm 0cm 0pt; text-align: left; mso-layout-grid-align: none;"><span lang="EN-US" style="font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;"><span style="mso-spacerun: yes;">       </span><span style="color: gray;">BETWEEN</span> 1 <span style="color: gray;">AND</span> 5 <span style="color: blue;">THEN</span> @workday<span style="color: gray;">+</span>1 <span style="color: blue;">ELSE</span> @workday <span style="color: blue;">END</span><span style="color: gray;">,</span> </span>
<p align="left" class="MsoNormal" style="margin: 0cm 0cm 0pt; text-align: left; mso-layout-grid-align: none;"><span lang="EN-US" style="font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;"><span style="mso-spacerun: yes;">                            </span>@dt_begin<span style="color: gray;">=</span>@dt_begin<span style="color: gray;">+</span>1 </span>
<p align="left" class="MsoNormal" style="margin: 0cm 0cm 0pt; text-align: left; mso-layout-grid-align: none;"><span lang="EN-US" style="font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;"><span style="mso-spacerun: yes;">    </span><span style="color: blue;">END</span> </span>
<p align="left" class="MsoNormal" style="margin: 0cm 0cm 0pt; text-align: left; mso-layout-grid-align: none;"><span lang="EN-US" style="font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;"><span style="mso-spacerun: yes;">    </span><span style="color: blue;">RETURN</span><span style="color: gray;">(</span><span style="color: blue;">CASE</span> <span style="color: blue;">WHEN</span> @bz<span style="color: gray;">=</span>1 <span style="color: blue;">THEN</span> <span style="color: gray;">-</span>@workday <span style="color: blue;">ELSE</span> @workday <span style="color: blue;">END</span><span style="color: gray;">)</span> </span>
<p align="left" class="MsoNormal" style="margin: 0cm 0cm 0pt; text-align: left; mso-layout-grid-align: none;"><span lang="EN-US" style="color: blue; font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;">END</span><span lang="EN-US" style="font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;"> </span>
<p align="left" class="MsoNormal" style="margin: 0cm 0cm 0pt; text-align: left; mso-layout-grid-align: none;"><span lang="EN-US" style="font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;"> </span>
<p align="left" class="MsoNormal" style="margin: 0cm 0cm 0pt; text-align: left; mso-layout-grid-align: none;"><span lang="EN-US" style="font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;">GO</span>
<p align="left" class="MsoNormal" style="margin: 0cm 0cm 0pt; text-align: left; mso-layout-grid-align: none;"><span lang="EN-US" style="color: green; font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;">--</span><span style="color: green; font-family: 宋体; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes; mso-ascii-font-family: "Courier New"; mso-hansi-font-family: "Courier New"; mso-bidi-font-family: "Courier New";">测试示例</span>
<p align="left" class="MsoNormal" style="margin: 0cm 0cm 0pt; text-align: left; mso-layout-grid-align: none;"><span lang="EN-US" style="color: blue; font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;">select</span><span lang="EN-US" style="font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;"> dbo<span style="color: gray;">.</span>f_WorkDay<span style="color: gray;">(</span><span style="color: red;">'2011-02-22'</span><span style="color: gray;">,</span><span style="color: red;">'2011-03-14'</span><span style="color: gray;">)</span> <span style="color: blue;">as</span> <span style="color: red;">'</span></span><span style="color: red; font-family: 宋体; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes; mso-ascii-font-family: "Courier New"; mso-hansi-font-family: "Courier New"; mso-bidi-font-family: "Courier New";">工作日</span><span lang="EN-US" style="color: red; font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;">'</span>
<p align="left" class="MsoNormal" style="margin: 0cm 0cm 0pt; text-align: left; mso-layout-grid-align: none;"><span lang="EN-US" style="color: red; font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;"> </span>
<p align="left" class="MsoNormal" style="margin: 0cm 0cm 0pt; text-align: left; mso-layout-grid-align: none;"><span lang="EN-US" style="color: green; font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;">--</span><span style="color: green; font-family: 宋体; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes; mso-ascii-font-family: "Courier New"; mso-hansi-font-family: "Courier New"; mso-bidi-font-family: "Courier New";">运行结果</span>
<p align="left" class="MsoNormal" style="margin: 0cm 0cm 0pt; text-align: left; mso-layout-grid-align: none;"><span lang="EN-US" style="color: green; font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;">/*</span>
<p align="left" class="MsoNormal" style="margin: 0cm 0cm 0pt; text-align: left; mso-layout-grid-align: none;"><span style="color: green; font-family: 宋体; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes; mso-ascii-font-family: "Courier New"; mso-hansi-font-family: "Courier New"; mso-bidi-font-family: "Courier New";">工作日</span>
<p align="left" class="MsoNormal" style="margin: 0cm 0cm 0pt; text-align: left; mso-layout-grid-align: none;"><span lang="EN-US" style="color: green; font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;">-----------</span>
<p align="left" class="MsoNormal" style="margin: 0cm 0cm 0pt; text-align: left; mso-layout-grid-align: none;"><span lang="EN-US" style="color: green; font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;">15</span>
<p align="left" class="MsoNormal" style="margin: 0cm 0cm 0pt; text-align: left; mso-layout-grid-align: none;"><span lang="EN-US" style="color: green; font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;">*/</span>
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