返回两个时间范围内的一个随机时间代码,MSSQL代码库,德仔网

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【MSSQL】返回两个时间范围内的一个随机时间
作者:maco_wang / 发布于2012/2/8/ 549
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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="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;">*<span style="mso-spacerun: yes;">    </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";">函数名：</span><span lang="EN-US" style="color: green; font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;">RandDateTime</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 style="mso-spacerun: yes;">    </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";">作用：</span><span 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";">返回两个时间范围内的一个随机时间</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 style="mso-spacerun: yes;">    </span>Author:<span style="mso-spacerun: yes;">    </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";">兰习刚</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 style="mso-spacerun: yes;">    </span>Date:<span style="mso-spacerun: yes;">      </span>2009-11-30</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="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>
<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> RandDateTime</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>
<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>@RandNum <span style="color: blue;">Decimal</span><span style="color: gray;">(</span>38<span style="color: gray;">,</span>18<span style="color: gray;">),</span><span style="color: green;">--0-1</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";">之际随机数值建议</span><span lang="EN-US" style="color: green; font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;">Rand()</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>@StartTime <span style="color: blue;">DateTime</span><span style="color: gray;">,    </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";">第一个时间</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>@EndTime <span style="color: blue;">DateTime</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";">第二个时间</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>
<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;">Returns</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;">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="color: blue; font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;">As</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>
<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> @HourDiff <span style="color: blue;">Decimal</span><span style="color: gray;">(</span>38<span style="color: gray;">,</span>18<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";">两个时间之间的小时差值</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> @MsPartDiff <span style="color: blue;">Decimal</span><span style="color: gray;">(</span>38<span style="color: gray;">,</span>18<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";">毫秒部分的差值</span><span lang="EN-US" style="color: green; font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;"><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: blue;">Declare</span> @SmallDate <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;">Declare</span> @ReturnDateTime <span style="color: blue;">DateTime</span><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>
<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: 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";">取各部分差值</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="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> @HourDiff <span style="color: gray;">=</span> <span style="color: fuchsia;">DateDiff</span><span style="color: gray;">(</span>hh<span style="color: gray;">,</span>@StartTime<span style="color: gray;">,</span>@EndTime<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;">Set</span> @MsPartDiff <span style="color: gray;">=</span> <span style="color: fuchsia;">Abs</span><span style="color: gray;">(</span><span style="color: fuchsia;">DateDiff</span><span style="color: gray;">(</span>ms<span style="color: gray;">,</span><span style="color: fuchsia;">DateAdd</span><span style="color: gray;">(</span>hh<span style="color: gray;">,</span>@HourDiff<span style="color: gray;">,</span>@StartTime<span style="color: gray;">),</span>@EndTime<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;">Select</span> @SmallDate<span style="color: gray;">=(</span><span style="color: blue;">Case</span> <span style="color: blue;">When</span> @HourDiff<span style="color: gray;">></span>0 <span style="color: blue;">Then</span> @StartTime <span style="color: blue;">Else</span> @EndTime <span style="color: blue;">End</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";">取较小的时间</span><span lang="EN-US" style="color: green; font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;"><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: blue;">Set</span> @HourDiff <span style="color: gray;">=</span> <span style="color: fuchsia;">Abs</span><span style="color: gray;">(</span>@HourDiff<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="mso-spacerun: yes;">   </span>ActionLable<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;">Declare</span> @HourDecimal <span style="color: blue;">Decimal</span><span style="color: gray;">(</span>38<span style="color: gray;">,</span>18<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";">小时的小数部分</span><span lang="EN-US" style="color: green; font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;"><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: blue;">Declare</span> @HourString <span style="color: blue;">varchar</span><span style="color: gray;">(</span>200<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;">Set</span> @HourDiff <span style="color: gray;">=</span> @HourDiff <span style="color: gray;">*</span> @RandNum<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: blue;">Set</span> @HourString <span style="color: gray;">=</span> <span style="color: fuchsia;">CONVERT</span><span style="color: gray;">(</span><span style="color: blue;">VARCHAR</span><span style="color: gray;">(</span>200<span style="color: gray;">),</span>@HourDiff<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;">Set</span> @HourString <span style="color: gray;">=</span> <span style="color: fuchsia;">SubString</span><span style="color: gray;">(</span>@HourString<span style="color: gray;">,</span><span style="color: fuchsia;">CharIndex</span><span style="color: gray;">(</span><span style="color: red;">'.'</span><span style="color: gray;">,</span>@HourString<span style="color: gray;">)+</span>1<span style="color: gray;">,</span><span style="color: fuchsia;">Len</span><span style="color: gray;">(</span>@HourString<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;">Set</span> @HourString <span style="color: gray;">=</span> <span style="color: red;">'0.'</span> <span style="color: gray;">+</span> @HourString</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> @HourDecimal <span style="color: gray;">=</span> <span style="color: fuchsia;">Convert</span><span style="color: gray;">(</span><span style="color: blue;">Decimal</span><span style="color: gray;">(</span>38<span style="color: gray;">,</span>18<span style="color: gray;">),</span>@HourString<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";">获得小时的小数部分</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> @MsPartDiff <span style="color: gray;">=</span> <span style="color: gray;">(</span>@MsPartDiff <span style="color: gray;">+</span> @HourDecimal <span style="color: gray;">*</span> 3600<span style="color: gray;">*</span>1000<span style="color: gray;">)</span> <span style="color: gray;">*</span> @RandNum<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: 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";">毫秒差值</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 style="mso-spacerun: yes;">    </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";">由于之前</span><span lang="EN-US" style="color: green; font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;">@MsPartDiff</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";">是两个时间小时之后的毫秒差值</span><span lang="EN-US" style="color: green; font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;"><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="color: green; font-family: "Courier New"; font-size: 10pt; mso-font-kerning: 0pt; mso-no-proof: yes;"><span style="mso-spacerun: yes;">    </span>@HourDecimal * 3600*1000 </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";">有小时的小数部分的毫秒差值不会大于小时</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 style="mso-spacerun: yes;">    </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";">毫秒不会溢出</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 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: blue;">Set</span> @ReturnDateTime <span style="color: gray;">=</span> <span style="color: fuchsia;">DateAdd</span><span style="color: gray;">(</span>hh<span style="color: gray;">,</span>@HourDiff<span style="color: gray;">,</span>@SmallDate<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;">Set</span> @ReturnDateTime <span style="color: gray;">=</span> <span style="color: fuchsia;">DateAdd</span><span style="color: gray;">(</span>ms<span style="color: gray;">,</span>@MsPartDiff<span style="color: gray;">,</span>@ReturnDateTime<span style="color: gray;">)</span><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: blue;">Return</span> @ReturnDateTime</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>
<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;"> </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>RandDateTime<span style="color: gray;">(</span><span style="color: fuchsia;">Rand</span><span style="color: gray;">(),</span><span style="color: red;">'2011-03-21 00:00:00.000'</span><span style="color: gray;">,</span><span style="color: red;">'2011-03-21 23:59:00.000'</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;">go 10</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="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 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;">2011-03-21 16:44:58.990</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;">(1 row(s) affected)</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;"> </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;">2011-03-21 00:00:33.313</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;">(1 row(s) affected)</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;"> </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;">2011-03-21 15:04:58.777</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;">(1 row(s) affected)</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;"> </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;">2011-03-21 06:32:21.347</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;">(1 row(s) affected)</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;"> </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;">2011-03-21 15:11:51.047</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;">(1 row(s) affected)</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;"> </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;">2011-03-21 14:39:23.597</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;">(1 row(s) affected)</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;"> </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;">2011-03-21 07:24:17.247</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;">(1 row(s) affected)</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;"> </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;">2011-03-21 06:15:49.653</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;">(1 row(s) affected)</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;"> </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;">2011-03-21 02:06:14.757</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;">(1 row(s) affected)</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;"> </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;">2011-03-21 10:49:18.370</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;">(1 row(s) affected)</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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