105 lines
33 KiB
HTML
105 lines
33 KiB
HTML
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<div id="sina_keyword_ad_area2" class="articalContent ">
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<p style="margin:5px auto; font-family:verdana; line-height:22px; background-color:rgb(255,255,255)">
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Insert是T-sql中常用语句，Insert INTO table(field1,field2,...)values(value1,value2,...)这种形式的在应用程序开发中必不可少。但我们在开发、测试过程中，经常会遇到需要表复制的情况，如将一个table1的数据的部分字段复制到table2中，或者将整个table1复制到table2中，这时候我们就要使用<span style="font-family:Verdana">SELECTINTO 和 INSERT INTO SELECT 表复制语句了。</span></p>
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<p style="margin:5px auto; font-family:verdana; line-height:22px; background-color:rgb(255,255,255)">
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<wbr> <wbr> <wbr> <wbr> <wbr>1.<span style="font-family:Verdana">INSERT INTO SELECT语句</span></p>
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<p style="margin:5px auto; font-family:verdana; line-height:22px; background-color:rgb(255,255,255)">
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<wbr> <wbr> <wbr> <wbr> <wbr> <wbr>语句形式为：<span style="font-family:Verdana"><span style="color:rgb(255,0,0)"><span style="font-family:Verdana">Insertinto Table2(field1,field2,...) select value1,value2,... fromTable1</span></span></span></p>
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<p style="margin:5px auto; font-family:verdana; line-height:22px; background-color:rgb(255,255,255)">
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<wbr> <wbr> <wbr> <wbr> <wbr> <wbr><span style="font-family:Verdana">要求目标表Table2必须存在，由于目标表Table2已经存在，所以我们除了插入源表Table1的字段外，还可以插入常量。示例如下：</span></p>
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<div style="font-family:'Courier new'; word-wrap:break-word; background-color:rgb(245,245,245); font-size:12px; border:1px solid rgb(204,204,204); padding:5px; overflow:auto; margin:5px 0px; line-height:22px">
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<img height="16" src="http://simg.sinajs.cn/blog7style/images/common/sg_trans.gif" width="11" align="top" name="Code_Open_Image_080803" alt="SELECT <wbr>INTO <wbr>和 <wbr>INSERT <wbr>INTO <wbr>SELECT <wbr>两种表复制语句" title="SELECT <wbr>INTO <wbr>和 <wbr>INSERT <wbr>INTO <wbr>SELECT <wbr>两种表复制语句" style="display:inline"><span style="font-family:'Courier new'; display:inline"><br>
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<span style="font-family:'Courier new'"> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,128,128)">--</span><span style="font-family:'Courier new'; color:rgb(0,128,128)">1.创建测试表</span><span style="font-family:'Courier new'; color:rgb(0,128,128)"><br>
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</span><span style="font-family:'Courier new'"> <wbr> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">create</span><span style="font-family:'Courier new'"> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">TABLE</span><span style="font-family:'Courier new'"> <wbr>Table1<br>
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<wbr> <wbr> <wbr> <wbr>(<br>
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<wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr>a <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">varchar</span><span style="font-family:'Courier new'">(</span><span style="font-family:'Courier new'; color:rgb(128,0,0)"><strong>10</strong></span><span style="font-family:'Courier new'">),<br>
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<wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr>b <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">varchar</span><span style="font-family:'Courier new'">(</span><span style="font-family:'Courier new'; color:rgb(128,0,0)"><strong>10</strong></span><span style="font-family:'Courier new'">),<br>
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<wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr>c <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">varchar</span><span style="font-family:'Courier new'">(</span><span style="font-family:'Courier new'; color:rgb(128,0,0)"><strong>10</strong></span><span style="font-family:'Courier new'">),<br>
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<wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">CONSTRAINT</span><span style="font-family:'Courier new'"> <wbr></span><span style="font-family:'Courier new'; color:rgb(255,0,0)">[</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">PK_Table1</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">]</span><span style="font-family:'Courier new'"> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">PRIMARY</span><span style="font-family:'Courier new'"> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">KEY</span><span style="font-family:'Courier new'"> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">CLUSTERED</span><span style="font-family:'Courier new'"><br>
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<wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr>(<br>
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<wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr>a <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">ASC</span><span style="font-family:'Courier new'"><br>
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<wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr>)<br>
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<wbr> <wbr> <wbr> <wbr>) <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">ON</span><span style="font-family:'Courier new'"> <wbr></span><span style="font-family:'Courier new'; color:rgb(255,0,0)">[</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">PRIMARY</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">]</span><span style="font-family:'Courier new'"><br>
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<br>
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<wbr> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">create</span><span style="font-family:'Courier new'"> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">TABLE</span><span style="font-family:'Courier new'"> <wbr>Table2<br>
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<wbr> <wbr> <wbr> <wbr>(<br>
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<wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr>a <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">varchar</span><span style="font-family:'Courier new'">(</span><span style="font-family:'Courier new'; color:rgb(128,0,0)"><strong>10</strong></span><span style="font-family:'Courier new'">),<br>
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<wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr>c <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">varchar</span><span style="font-family:'Courier new'">(</span><span style="font-family:'Courier new'; color:rgb(128,0,0)"><strong>10</strong></span><span style="font-family:'Courier new'">),<br>
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<wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr>d <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">int</span><span style="font-family:'Courier new'">,<br>
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<wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">CONSTRAINT</span><span style="font-family:'Courier new'"> <wbr></span><span style="font-family:'Courier new'; color:rgb(255,0,0)">[</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">PK_Table2</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">]</span><span style="font-family:'Courier new'"> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">PRIMARY</span><span style="font-family:'Courier new'"> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">KEY</span><span style="font-family:'Courier new'"> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">CLUSTERED</span><span style="font-family:'Courier new'"><br>
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<wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr>(<br>
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<wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr>a <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">ASC</span><span style="font-family:'Courier new'"><br>
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<wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr>)<br>
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<wbr> <wbr> <wbr> <wbr>) <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">ON</span><span style="font-family:'Courier new'"> <wbr></span><span style="font-family:'Courier new'; color:rgb(255,0,0)">[</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">PRIMARY</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">]</span><span style="font-family:'Courier new'"><br>
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<wbr> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">GO</span><span style="font-family:'Courier new'"><br>
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<wbr> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,128,128)">--</span><span style="font-family:'Courier new'; color:rgb(0,128,128)">2.创建测试数据</span><span style="font-family:'Courier new'; color:rgb(0,128,128)"><br>
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</span><span style="font-family:'Courier new'"> <wbr> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">Insert</span><span style="font-family:'Courier new'"> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">into</span><span style="font-family:'Courier new'"> <wbr>Table1 <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">values</span><span style="font-family:'Courier new'">(</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">赵</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'">,</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">asds</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'">,</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">90</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'">)<br>
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<wbr> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">Insert</span><span style="font-family:'Courier new'"> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">into</span><span style="font-family:'Courier new'"> <wbr>Table1 <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">values</span><span style="font-family:'Courier new'">(</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">钱</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'">,</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">asds</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'">,</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">100</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'">)<br>
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<wbr> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">Insert</span><span style="font-family:'Courier new'"> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">into</span><span style="font-family:'Courier new'"> <wbr>Table1 <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">values</span><span style="font-family:'Courier new'">(</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">孙</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'">,</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">asds</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'">,</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">80</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'">)<br>
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<wbr> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">Insert</span><span style="font-family:'Courier new'"> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">into</span><span style="font-family:'Courier new'"> <wbr>Table1 <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">values</span><span style="font-family:'Courier new'">(</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">李</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'">,</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">asds</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'">,</span><span style="font-family:'Courier new'; color:rgb(0,0,255)">null</span><span style="font-family:'Courier new'">)<br>
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<wbr> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">GO</span><span style="font-family:'Courier new'"><br>
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<wbr> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">select</span><span style="font-family:'Courier new'"> <wbr></span><span style="font-family:'Courier new'; color:rgb(128,128,128)">*</span><span style="font-family:'Courier new'"> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">from</span><span style="font-family:'Courier new'"> <wbr>Table2<br>
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<br>
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<wbr> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,128,128)">--</span><span style="font-family:'Courier new'; color:rgb(0,128,128)">3.INSERT <wbr>INTO <wbr>SELECT语句复制表数据</span><span style="font-family:'Courier new'; color:rgb(0,128,128)"><br>
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</span><span style="font-family:'Courier new'"> <wbr> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">Insert</span><span style="font-family:'Courier new'"> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">into</span><span style="font-family:'Courier new'"> <wbr>Table2(a, <wbr>c, <wbr>d) <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">select</span><span style="font-family:'Courier new'"> <wbr>a,c,</span><span style="font-family:'Courier new'; color:rgb(128,0,0)"><strong>5</strong></span><span style="font-family:'Courier new'"> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">from</span><span style="font-family:'Courier new'"> <wbr>Table1<br>
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<wbr> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">GO</span><span style="font-family:'Courier new'"><br>
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<br>
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<wbr> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,128,128)">--</span><span style="font-family:'Courier new'; color:rgb(0,128,128)">4.显示更新后的结果</span><span style="font-family:'Courier new'; color:rgb(0,128,128)"><br>
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</span><span style="font-family:'Courier new'"> <wbr> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">select</span><span style="font-family:'Courier new'"> <wbr></span><span style="font-family:'Courier new'; color:rgb(128,128,128)">*</span><span style="font-family:'Courier new'"> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">from</span><span style="font-family:'Courier new'"> <wbr>Table2<br>
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<wbr> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">GO</span><span style="font-family:'Courier new'"><br>
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<wbr> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,128,128)">--</span><span style="font-family:'Courier new'; color:rgb(0,128,128)">5.删除测试表</span><span style="font-family:'Courier new'; color:rgb(0,128,128)"><br>
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</span><span style="font-family:'Courier new'"> <wbr> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">drop</span><span style="font-family:'Courier new'"> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">TABLE</span><span style="font-family:'Courier new'"> <wbr>Table1<br>
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<wbr> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">drop</span><span style="font-family:'Courier new'"> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">TABLE</span><span style="font-family:'Courier new'"> <wbr>Table2</span></span></div>
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<p style="margin:5px auto; font-family:verdana; line-height:22px; background-color:rgb(255,255,255)">
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<br>
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<wbr> <wbr> <wbr> <wbr> <wbr>2.<span style="font-family:Verdana">SELECT INTO FROM语句</span></p>
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<p style="margin:5px auto; font-family:verdana; line-height:22px; background-color:rgb(255,255,255)">
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<wbr> <wbr> <wbr> <wbr> <wbr> <wbr>语句形式为：<span style="font-family:Verdana"><span style="color:rgb(255,0,0)"><span style="font-family:Verdana">SELECTvale1, value2 into Table2 from Table1</span></span></span></p>
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<p style="margin:5px auto; font-family:verdana; line-height:22px; background-color:rgb(255,255,255)">
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<wbr> <wbr> <wbr> <wbr> <wbr> <wbr><span style="font-family:Verdana">要求目标表Table2不存在，<span style="font-family:Verdana">因为在插入时会自动创建表Table2，并将Table1中指定字段数据复制到Table2中</span>。示例如下：</span></p>
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<div style="font-family:'Courier new'; word-wrap:break-word; background-color:rgb(245,245,245); font-size:12px; border:1px solid rgb(204,204,204); padding:5px; overflow:auto; margin:5px 0px; line-height:22px">
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<img height="16" src="http://simg.sinajs.cn/blog7style/images/common/sg_trans.gif" width="11" align="top" name="Code_Open_Image_082138" alt="SELECT <wbr>INTO <wbr>和 <wbr>INSERT <wbr>INTO <wbr>SELECT <wbr>两种表复制语句" title="SELECT <wbr>INTO <wbr>和 <wbr>INSERT <wbr>INTO <wbr>SELECT <wbr>两种表复制语句" style="display:inline"><span style="font-family:'Courier new'; display:inline"><br>
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<span style="font-family:'Courier new'"> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,128,128)">--</span><span style="font-family:'Courier new'; color:rgb(0,128,128)">1.创建测试表</span><span style="font-family:'Courier new'; color:rgb(0,128,128)"><br>
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</span><span style="font-family:'Courier new'"> <wbr> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">create</span><span style="font-family:'Courier new'"> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">TABLE</span><span style="font-family:'Courier new'"> <wbr>Table1<br>
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<wbr> <wbr> <wbr> <wbr>(<br>
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<wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr>a <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">varchar</span><span style="font-family:'Courier new'">(</span><span style="font-family:'Courier new'; color:rgb(128,0,0)"><strong>10</strong></span><span style="font-family:'Courier new'">),<br>
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<wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr>b <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">varchar</span><span style="font-family:'Courier new'">(</span><span style="font-family:'Courier new'; color:rgb(128,0,0)"><strong>10</strong></span><span style="font-family:'Courier new'">),<br>
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<wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr>c <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">varchar</span><span style="font-family:'Courier new'">(</span><span style="font-family:'Courier new'; color:rgb(128,0,0)"><strong>10</strong></span><span style="font-family:'Courier new'">),<br>
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<wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">CONSTRAINT</span><span style="font-family:'Courier new'"> <wbr></span><span style="font-family:'Courier new'; color:rgb(255,0,0)">[</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">PK_Table1</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">]</span><span style="font-family:'Courier new'"> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">PRIMARY</span><span style="font-family:'Courier new'"> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">KEY</span><span style="font-family:'Courier new'"> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">CLUSTERED</span><span style="font-family:'Courier new'"><br>
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<wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr>(<br>
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<wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr>a <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">ASC</span><span style="font-family:'Courier new'"><br>
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<wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr> <wbr>)<br>
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<wbr> <wbr> <wbr> <wbr>) <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">ON</span><span style="font-family:'Courier new'"> <wbr></span><span style="font-family:'Courier new'; color:rgb(255,0,0)">[</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">PRIMARY</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">]</span><span style="font-family:'Courier new'"><br>
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<wbr> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">GO</span><span style="font-family:'Courier new'"><br>
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<br>
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<wbr> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,128,128)">--</span><span style="font-family:'Courier new'; color:rgb(0,128,128)">2.创建测试数据</span><span style="font-family:'Courier new'; color:rgb(0,128,128)"><br>
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</span><span style="font-family:'Courier new'"> <wbr> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">Insert</span><span style="font-family:'Courier new'"> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">into</span><span style="font-family:'Courier new'"> <wbr>Table1 <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">values</span><span style="font-family:'Courier new'">(</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">赵</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'">,</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">asds</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'">,</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">90</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'">)<br>
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<wbr> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">Insert</span><span style="font-family:'Courier new'"> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">into</span><span style="font-family:'Courier new'"> <wbr>Table1 <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">values</span><span style="font-family:'Courier new'">(</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">钱</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'">,</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">asds</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'">,</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">100</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'">)<br>
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<wbr> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">Insert</span><span style="font-family:'Courier new'"> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">into</span><span style="font-family:'Courier new'"> <wbr>Table1 <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">values</span><span style="font-family:'Courier new'">(</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">孙</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'">,</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">asds</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'">,</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">80</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'">)<br>
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<wbr> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">Insert</span><span style="font-family:'Courier new'"> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">into</span><span style="font-family:'Courier new'"> <wbr>Table1 <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">values</span><span style="font-family:'Courier new'">(</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">李</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'">,</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">asds</span><span style="font-family:'Courier new'; color:rgb(255,0,0)">'</span><span style="font-family:'Courier new'">,</span><span style="font-family:'Courier new'; color:rgb(0,0,255)">null</span><span style="font-family:'Courier new'">)<br>
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<wbr> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">GO</span><span style="font-family:'Courier new'"><br>
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<br>
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<wbr> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,128,128)">--</span><span style="font-family:'Courier new'; color:rgb(0,128,128)">3.SELECT <wbr>INTO <wbr>FROM语句创建表Table2并复制数据</span><span style="font-family:'Courier new'; color:rgb(0,128,128)"><br>
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</span><span style="font-family:'Courier new'"> <wbr> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">select</span><span style="font-family:'Courier new'"> <wbr>a,c <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">INTO</span><span style="font-family:'Courier new'"> <wbr>Table2 <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">from</span><span style="font-family:'Courier new'"> <wbr>Table1<br>
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<wbr> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">GO</span><span style="font-family:'Courier new'"><br>
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<br>
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<wbr> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,128,128)">--</span><span style="font-family:'Courier new'; color:rgb(0,128,128)">4.显示更新后的结果</span><span style="font-family:'Courier new'; color:rgb(0,128,128)"><br>
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</span><span style="font-family:'Courier new'"> <wbr> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">select</span><span style="font-family:'Courier new'"> <wbr></span><span style="font-family:'Courier new'; color:rgb(128,128,128)">*</span><span style="font-family:'Courier new'"> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">from</span><span style="font-family:'Courier new'"> <wbr>Table2<br>
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<wbr> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">GO</span><span style="font-family:'Courier new'"><br>
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<wbr> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,128,128)">--</span><span style="font-family:'Courier new'; color:rgb(0,128,128)">5.删除测试表</span><span style="font-family:'Courier new'; color:rgb(0,128,128)"><br>
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</span><span style="font-family:'Courier new'"> <wbr> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">drop</span><span style="font-family:'Courier new'"> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">TABLE</span><span style="font-family:'Courier new'"> <wbr>Table1<br>
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<wbr> <wbr> <wbr> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">drop</span><span style="font-family:'Courier new'"> <wbr></span><span style="font-family:'Courier new'; color:rgb(0,0,255)">TABLE</span><span style="font-family:'Courier new'"> <wbr>Table2</span></span></div>
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<p style="margin:5px auto; line-height:22px; background-color:rgb(255,255,255)"><span style="font-family:verdana">3.</span><span style="font-family:Verdana">使用IDENTITY</span></p>
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<p style="margin:5px auto; font-family:verdana; line-height:22px; background-color:rgb(255,255,255)">
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<wbr> <wbr> <wbr> <wbr> <wbr> <wbr>语句形式1：<span style="font-family:Verdana"><span style="color:rgb(255,0,0)"><span style="font-family:Verdana">SELECTidentity(int,1,1) as c1, <wbr>c2, c3 into Table2 fromTable1</span></span></span></p>
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<p style="margin:5px auto; font-family:verdana; line-height:22px; background-color:rgb(255,255,255)">
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<span style="font-family:verdana; line-height:22px"> <wbr> <wbr> <wbr> 语句形式2：</span><span style="font-family:Verdana"><span style="color:rgb(255,0,0)"><span style="font-family:Verdana">Insert into Table2(c1,c2) select identity(int,1,1) asc1,c2 from Table1</span></span></span></p>
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<p style="margin:5px auto; font-family:verdana; line-height:22px; background-color:rgb(255,255,255)">
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<span style="font-family:Verdana"><span style="color:rgb(255,0,0)"><span style="font-family:Verdana"><br>
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</span></span></span></p>
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<p style="margin:5px auto; font-family:verdana; line-height:22px; background-color:rgb(255,255,255)">
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<span style="font-family:verdana; line-height:22px"> <wbr>本文转自：</span><a target="_blank" href="http://www.cnblogs.com/freshman0216/archive/2008/08/15/1268316.html" target="_blank">http://www.cnblogs.com/freshman0216/archive/2008/08/15/1268316.html</a></p>
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</div>
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