vba如何通过odbc连接数据库c++如何连接数据库通过ODBC

access是包含前台程序开发和后台数据库的应用软件。

可以利用access作为前台开发，后台用SqlServer，oracle这些作为数据库。

而access连接数据库，可以利用链接表。直接读取表记录。也可以通过ADO等数据操作方式读取数据库

方法1:odbc连接方式

Dim OracleDatabase As String OracleDatabase = "DSN=ODBC源名称;UID=你的用户名;PWD=你的密码;LANGUAGE=us_english; DATABASE=NOKIAKPI" Set conn = CreateObject("adodb.connection") conn.Open OracleDatabase If Err.Number <> 0 Then MsgBox ("Please Check connection to KPI Server!") DoCmd.Quit Else KPITableName = "TEMPKB" & Format(Date, "ddhh24") & Format(Time, "hhss") LocalTable = rstrDesTbl '----------fetch table from oracle db------------------- SQL = "create table " & KPITableName & " as " & rstrSrcTbl 'nokiaadmin conn.CommandTimeout = 300 conn.Execute (SQL) DoCmd.DeleteObject acTable, LocalTable ' KPITableName = "kpiview." & KPITableName DoCmd.TransferDatabase acTable, "ODBC Database", "ODBC;" & OracleDatabase, acTable, KPITableName, LocalTable conn.Execute ("DROP TABLE " & KPITableName & ";") End If Exit Function

方法2：oledb

Dim Cnn As Object Set Cnn = CreateObject("ADODB.Connection") Set rs = CreateObject("ADODB.recordset") rs.cursorlocation = 3 cnn.Open "data source=服务器名;provider=OraOLEDB.Oracle;user id=用户;password=密码" Sql = "Select 字段名 from 表名 where ID=1" rs.Open SQL, Cnn rs.Close Set Cnn = Nothing Set rs = Nothing