VC++6.0 中用 ADO 存取 Access 数据库的一点总结
本文示例源代码或素材下载 事情是这样的,我的女朋友想要对日常生活的开销做个记录,以便控制花钱的尺度。看她每日用笔头记录,然后和我抢电脑用,曰:要用附件中的计算器统计结果,每每如此 ,不胜其烦,就给她做了一个个人家庭记帐系统,一劳永逸解决问题
本文示例源代码或素材下载
事情是这样的,我的女朋友想要对日常生活的开销做个记录,以便控制花钱的尺度。看她每日用笔头记录,然后和我抢电脑用,曰:要用附件中的计算器统计结果,每每如此 ,不胜其烦,就给她做了一个个人家庭记帐系统,一劳永逸解决问题。期间用到了ADO操作Access数据库,在网上找了若干关于ADO的资料结合实践总结了一点使用心得如下 ,供有相同需求的朋友参考:
附带了那个个人记帐系统,运行的界面如下:

VC++下使用ADO编写数据库程序
准备:
(1)、引入ADO类 #import "c:\program files\common files\system\ado\msado15.dll" \<br>no_namespace \<br>rename ("EOF", "adoEOF")
(2)、初始化COM
在MFC中可以用AfxOleInit();非MFC环境中用: CoInitialize(NULL);<br>CoUnInitialize();
(3)#import 包含后就可以用3个智能指针了:_ConnectionPtr、_RecordsetPtr和_CommandPtr
1.连接和关闭数据库 (1)连接
例子:连接Access数据库
m_pConnection.CreateInstance(__uuidof(Connection));<br>try <br>{ <br> // 打开本地Access库Demo.mdb<br> m_pConnection->Open("Provider=Microsoft.Jet.OLEDB.4.0;DataSource=Demo.mdb",<br> "","",adModeUnknown);<br>}<br>catch(_com_error e)<br>{<br> AfxMessageBox("<strong>数据库</strong>连接失败,确认<strong>数据库</strong>Demo.mdb是否在当前路径下!");<br> return FALSE;<br>}
(2)、关闭
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