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WINDOWS CE 数据库编程
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WINDOWS CE 数据库编程
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2001-5-19 18:59:25
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<br><br><p><font color=#008080><big><big><strong><big>windows ce 数据库编程</big></strong></big></big></font></p>
<p><big>1.创建数据库</big></p>
<blockquote>
<h6><font face="ms sans serif"><font color=#000000><big>void cdb::createdatabase()</big><br><big>{</big><br><big> // =====================</big><br><big> // create login database</big><br><big> // =====================</big><br><big> </big><br><big> ccedbdatabase mydb;</big></font><br></font></h6>
<h6><font color=#000000 face="ms sans serif"><big> // check if database exists</big><br><big> if(!ccedbdatabase::exists(_t("test database"))) </big><br><big> {</big><br><big> // create database if it doesn't exist already</big><br><big> mydb.create(_t("test database"));</big><br><big> } </big><br><br><big>} // createdatabase</big></font></h6></blockquote>
<p><big> </big></p>
<p><big>2.打开数据库</big></p>
<blockquote>
<h6><font color=#000000><font face="ms sans serif"><big>ccedbdatabase mydb;</big><br><big>// open database</big><br><big>mydb.open(_t("test database"));</big></font><br></font><font color=#999933><big> </big><br></font></h6></blockquote>
<p><big>3.删除数据库</big></p>
<blockquote>
<h6><font color=#000000 face="ms sans serif"><big>ccedbdatabase mydb; </big><br><big>if (mydb.open(_t("test database"))) mydb.delete();</big></font></h6></blockquote>
<p><big>4.关闭数据库 </big></p>
<blockquote>
<h6><font color=#000000 face="ms sans serif"><big>ccedbdatabase mydb; </big><br><big>mydb.open(_t("test database"));</big><br><big>mydb.close();</big></font></h6></blockquote>
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