?? jb4-1-3.htm
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宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">。一些提供商包括</span><span lang="EN-US">Borland</span><span style="font-family:宋體;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"">擁有</span><span lang="EN-US">
[</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"">?</span> <span style="font-family:
宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">自己的專用</span>
<span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">?</span><span lang="EN-US">] JDBC</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">驅動。現存的</span><span lang="EN-US">ODBC</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">驅動可通過</span><span lang="EN-US">sun</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">公司提供的</span><span lang="EN-US">JDBC-ODBC</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">橋來加以利用。由于這要求安裝</span><span lang="EN-US">ODBC</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">驅動和注冊登記,所以</span><span lang="EN-US">JDBC-ODBC</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">橋并不是一個理想的解決方案。還有,</span><span lang="EN-US">ODBC</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">是于本地執行的,這樣損害了對交互平臺支持和</span><span lang="EN-US">Applet</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">安全。</span><span lang="EN-US"> <o:p>
</o:p>
</span></p>
<p class="MsoNormal" style="text-indent:21.0pt"><span lang="EN-US">Jbuilder
DataExpress </span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"">組件是通過使用</span><span lang="EN-US">Sun</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">公司的</span><span lang="EN-US">JDBC API</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">實現的。要創建一個</span><span lang="EN-US">Java</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">數據庫應用程序,就要在創建之前對</span><span lang="EN-US">Sun
JDBC sql</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">包進行裝配。如果通過</span><span lang="EN-US">ODBC</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">驅動連接數據庫,就需要裝配</span><span lang="EN-US">Sun
JDBC-ODBC</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">橋軟件。</span></p>
<p class="MsoNormal"><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"">欲獲得更多關于</span><span lang="EN-US">JDBC</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">或</span><span lang="EN-US">JDBC-ODBC</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">橋的信息,可訪問</span><span lang="EN-US">JDBC</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">數據庫接口網址,</span><span lang="EN-US"><a href="../../../java.sun.com/products/jdbc/default.htm">http://java.sun.com/products/jdbc/</a></span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">。</span></p>
<hr>
<p ><span style="font-family:宋體;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman""><font color="#000080" size="3"><b>數據庫的連接</b></font></span></p>
<p class="MsoNormal" style="text-indent:21.0pt"><span lang="EN-US">Jbuilder</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">應用程序可以連接到遠程或本地</span><span lang="EN-US">SQL</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">數據庫,或者連接到由其它</span><span lang="EN-US">Borland</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">應用程序如</span><span lang="EN-US">C++
Builder</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">或</span><span lang="EN-US">Delphi</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">產生的數據庫上。</span></p>
<p class="MsoNormal"><span lang="EN-US"> <o:p> </span><span style="font-family:宋體;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman""> </span><span lang="EN-US">
</span><span style="font-family:宋體;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">要和一個遠程</span><span lang="EN-US">SQL</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"">數據庫進行連接,你需要實現下列兩者之一:</span></p>
<p class="MsoNormal"><span style="mso-tab-count:1" lang="EN-US"> </span>
<span lang="EN-US">*JDBC</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">專用驅動</span><span lang="EN-US"> [ for your
server ]</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">。一些</span><span lang="EN-US">Jbuilder</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">版本包含了</span><span lang="EN-US">JDBC</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">驅動。其中之一就</span><span style="font-family:宋體;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">有</span><span lang="EN-US">InterClient</span><span style="font-family:宋體;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"">。你可訪問</span><span lang="EN-US">Borland</span><span style="font-family:宋體;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"">網址(</span><span lang="EN-US"><a href="../../../www.borland.com/jbuilder/default.htm">http://www.borland.com/jbuilder/</a></span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">)來檢驗</span><span lang="EN-US">Jbuilder</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">下的</span><span lang="EN-US">JDBC</span><span style="font-family:
宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">驅動的是否可用(指連接遠程數據庫功能),或者聯系軟件提供商。</span></p>
<p class="MsoNormal"><span lang="EN-US"><span style="mso-tab-count:1">
</span>*</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">與</span><span lang="EN-US">JDBC-ODBC</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">橋軟件聯合使用的基于</span><span lang="EN-US">ODBC</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">的驅動。</span><span lang="EN-US"> <o:p>
</o:p>
</span></p>
<p class="MsoNormal" style="margin-left:21.75pt"><span style="font-family:宋體;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman""><font color="#FF0000"><b>注意</b></font>:</span><span lang="EN-US">ODBC</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"">驅動不是可移植的</span><span lang="EN-US">DLL</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">。這對于本地開發是足夠了,但卻不能用于</span><span lang="EN-US">applets</span><span style="font-family:宋體;mso-ascii-font-family:
"Times New Roman";mso-hansi-font-family:"Times New Roman"">與其它純</span><span lang="EN-US">Java</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"">解決方案。</span></p>
<p class="MsoNormal" style="text-indent:21.75pt"><span style="font-family:宋體;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"">同本地非</span><span lang="EN-US">SQL</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"">數據庫連接時,如</span><span lang="EN-US">Paradox</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">或</span><span lang="EN-US">Visual dBase</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">,需要結合</span><span lang="EN-US">JDBC-ODBC</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">橋軟件來使用一個</span><span lang="EN-US">ODBC</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">驅動,且該</span><span lang="EN-US">ODBC</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">驅動須適用于正在存取表的類型和級別。</span><span lang="EN-US"> <o:p>
</o:p>
</span></p>
<hr>
<p ><span lang="EN-US"><b><font size="3" color="#000080">Jbuilder </font></b> </span><b><font size="3" color="#000080"><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">例程文件</span></font></b></p>
<p class="MsoNormal" style="text-indent:21.75pt"><span lang="EN-US">Jbuilder</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">例程目錄包含了本手冊講到的各種教程和范例。</span><span lang="EN-US">DataExpress
</span><span style="font-family:宋體;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"">例程文件位于</span><span lang="EN-US">…/samples/DataExpress/
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