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<td align="center" valign="middle" class="til"><h3> MS SQL基礎教程:算術函數(shù) </h3>
發(fā)布時間：2007-12-25 來源：網(wǎng)絡/責編：編程入門 作者：佚名<br />
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<td style="font-size:14px" align="left" class="til"><script src="/js1/300.js"></script><br /><p> 算術函數(shù)可對數(shù)據(jù)類型為整型INTEGER、 浮點型FLOAT、 實型REAL、 貨幣型MONEY和SMALLMONEY 的列進行操作。它的返回值是6 位小數(shù)，如果使用出錯，則返回NULL值并顯示警告信息。可以在SELECT 語句的SELECT 和WHERE 子句以及表達式中使用算術函數(shù)。Transact-SQL 中的算術函數(shù)見表4-7。</p>
<p> <img onclick="get_larger(this)" alt="" src="/upimg/071226/11b610O4V032B61.gif" /></p>
<p> <img onclick="get_larger(this)" alt="" src="/upimg/071226/11b610O6030331049.gif" /></p>
<p> <img onclick="get_larger(this)" alt="" src="/upimg/071226/11b610OLF34A17.gif" /></p>
<p> <strong>例4-37：</strong> 在同一表達式中使用SIN（）、 ATAN（）、 RAND（）、 PI（）、 SIGN（）函數(shù)</p>
<p> <img onclick="get_larger(this)" alt="" src="/upimg/071226/11b610OW10351305.gif" /></p>
<p> <img onclick="get_larger(this)" alt="" src="/upimg/071226/11b610OZ403B455.gif" /></p>
<p> <strong>例4-38：</strong> 用CEILING（） 和FLOOR（） 函數(shù)返回大于或等于指定值的最小整數(shù)值和小于或等于指定值的最大整數(shù)值。</p>
<p> <img onclick="get_larger(this)" alt="" src="/upimg/071226/11b610O94Z3J942.gif" /></p>
<p> <strong>例4-39：</strong>ROUND（） 函數(shù)的使用</p>
<p> <img onclick="get_larger(this)" alt="" src="/upimg/071226/11b610Oc403U0P.gif" /></p>
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<p>上一篇：<a href='/data/SQLServer/jc/200712/6317.htm'>MS SQL基礎教程:數(shù)據(jù)庫統(tǒng)計函數(shù)</a> 下一篇：<a href='/data/SQLServer/jc/200712/6319.htm'>MS SQL基礎教程:字符串函數(shù)</a> </p></td>
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