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<td width="109" align="center" class="p2"><font color="#FFFFFF"><b>Access
2000</b></font><font color="#FF3333" ><b></b></font></td>
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<a href="ac2k0101.htm">初識(shí)Access 2000<br>
</a></font><font color="#0000CC"> </font></span><span class="p1"><font color="#0000CC"><img src="img/small.gif" width="12" height="12">
<a href="ac2k0201.htm">窗口接口使用簡介<br>
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<a href="ac2k0301.htm">用向?qū)Ы?shù)據(jù)庫</a></span></font><font color="#0000CC"><span class="p1"><a href="ac2k0301.htm">
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<a href="ac2k0401.htm">數(shù)據(jù)庫的結(jié)構(gòu)</a> <span class="p1"><a href="ac2k0403.htm">
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用表向?qū)Ы⒈?lt;br>
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<span class="p1"> <a href="ac2k0501.htm">表向?qū)Ш喗?lt;/a><br>
什么是字段、記錄和值<br>
<a href="ac2k0503.htm">如何啟動(dòng)表向?qū)?lt;/a><br>
<a href="ac2k0504.htm">怎樣選擇新表中的字段</a><br>
<a href="ac2k0505.htm">在表向?qū)е行薷淖侄蚊?lt;/a><br>
<a href="ac2k0506.htm">怎樣在表中跳轉(zhuǎn)</a><br>
<a href="ac2k0507.htm">補(bǔ)充內(nèi)容</a> </span></span></font> <br>
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<a href="ac2k0601.htm">在表中輸入數(shù)據(jù)<br>
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<a href="ac2k0701.htm">數(shù)據(jù)的類型和屬性<br>
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<a href="ac2k0801.htm" class="p1">定義表之間的關(guān)系<br>
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<a href="ac2k0901.htm">建立簡單的查詢</a><br>
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<a href="ac2k1001.htm">為查詢制定規(guī)則</a><br>
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<a href="ac2k1101.htm">如何建立數(shù)據(jù)窗體<br>
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<a href="ac2k1201.htm">生成數(shù)據(jù)打印報(bào)表</a><br>
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<a href="ac2k1301.htm">為WEB頁提供數(shù)據(jù)<br>
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<a href="ac2k1301.htm"></a></span><a href="ac2k1401.htm" class="p1">用圖表顯示數(shù)據(jù)</a><br>
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<a href="ac2k1301.htm"></a></span><a href="ac2k1501.htm"><span class="p1">宏的使用</span><br>
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<a href="ac2k1301.htm"></a></span><a href="ac2k1601.htm"><span class="p1">模塊與“VBA”語言</span><br>
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<a href="ac2k1301.htm"></a></span><a href="ac2k1701.htm"><span class="p1">SQL語言妙用</span><br>
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<a href="ac2k1301.htm"></a></span><a href="ac2k1801.htm"><span class="p1">外部數(shù)據(jù)的使用</span><br>
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<a href="ac2k1301.htm"></a></span><a href="ac2k1901.htm"><span class="p1">數(shù)據(jù)的優(yōu)化和安全</span><br>
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<a href="ac2k1301.htm"></a></span><a href="ac2k2001.htm"><span class="p1">容易忽略的工作</span></a></p>
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<p><font color="#003333"><b><font color="#FF3333">什么是字段、記錄和值?</font></b></font></p>
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<p class=p2><span style="line-height:17pt"> 在講向?qū)е埃纫缼讉€(gè)概念。在數(shù)據(jù)庫中，對(duì)表的行和列都有特殊的叫法，每一列叫做一個(gè)“字段”。每個(gè)字段包含某一專題的信息。就像“通訊錄”數(shù)據(jù)庫中，“姓名”、“聯(lián)系電話”這些都是表中所有行共有的屬性，所以把這些列稱為“姓名”字段和“聯(lián)系電話”字段。</span></p>
<p class=p2><span style="line-height:17pt"> 我們把表中的每一行叫做一個(gè)“記錄”，每一個(gè)記錄包含這行中的所有信息，就像在通訊錄數(shù)據(jù)庫中某個(gè)人全部的信息，但記錄在數(shù)據(jù)庫中并沒有專門的記錄名，常常用它所在的行數(shù)表示這是第幾個(gè)記錄。</span></p>
<p align="center"><img src="img/ac2k0501.gif" width="432" height="191" alt="通訊錄表"></p>
<p class=p2><span style="line-height:17pt"> 在數(shù)據(jù)庫中存放在表行列交叉處的數(shù)據(jù)叫做“值”，它是數(shù)據(jù)庫中最基本的存儲(chǔ)單元，它的位置要由這個(gè)表中的記錄和字段來定義。在通訊錄的表中就可以看到第一個(gè)記錄與“單位”字段交叉處的值就是“中國人民銀行上海分行”。“王嵐”所在的記錄和“電話”的這個(gè)字段交叉位置上的“值”就是“0551-7238321”。</span></p>
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