C 資料庫操作

// 連線

oledbconnection cn = new oledbconnection("provider=microsoft.jet.oledb.4.0; data source=c://test.mdb;");

cn.open();

cn.close();

// 讀取資料到datatable

oledbconnection cn = new oledbconnection("provider=microsoft.jet.oledb.4.0; data source=c://test.mdb;");

datatable usertbl = new datatable();

oledbdataadapter da = new oledbdataadapter("select * from [user]", cn);

da.fill(usertbl);

// 插入一條記錄

oledbconnection cn = new oledbconnection("provider=microsoft.jet.oledb.4.0; data source=c://test.mdb;");

oledbcommand cmd = new oledbcommand("insert into [user] ([id], [username], [userpassword]) values (1, 'user_ab', '123')", cn);

cn.open();

cmd.executenonquery();

cn.close();

// 更新

oledbconnection cn = new oledbconnection("provider=microsoft.jet.oledb.4.0; data source=c://test.mdb;");

oledbcommand cmd = new oledbcommand("update [user] set [userpassword]='newpwd' where [username]='user_ab'", cn);

cn.open();

cmd.executenonquery();

cn.close();