第一种 - 这种方法用在ACCESS中最多
strconn = "DRIVER=Microsoft Access Driver (*.mdb);DBQ=" _
& Server.MapPath("aspfree.mdb")
set conn = server.createobject("adodb.connection")
conn.open strconn

第二种－这种方法用在SQL SERVER中多
strconn = "Driver={SQL Server};Description=sqldemo;SERVER=127.0.0.1;" _
&"UID=LoginID;Password=;DATABASE=Database_Name"
set conn = server.createobject("adodb.connection")
conn.open strconn

第三种
strconn="Driver={Microsoft Access Driver(*.mdb)};" _
&"DBQ=F:\\Inetpub\\wwwroot\\somedir\\db1.mdb;DefaultDir=" _
&"f:\\Inetpub\\wwwroot\\somedir;uid=LoginID;" _
&"pwd=Password;DriverId=25;FIL=MSAccess;"
set conn = server.createobject("adodb.connection")
conn.open strconn

第四种运用系统数据源
The following uses a Data Source Name: Example
set conn = server.createobject("adodb.connection")
conn.open "Example"

第五种运用ODBC数据源，前提是你必须在控制面板的ODBC中设置数据源
set rs = server.createobject("adodb.recordset")
rs.open "tblname", "DSNName", 3, 3  第一种 - 这种方法用在ACCESS中最多
strconn = "DRIVER=Microsoft Access Driver (*.mdb);DBQ=" _
& Server.MapPath("aspfree.mdb")
set conn = server.createobject("adodb.connection")
conn.open strconn

第六种ASP连接Oracle
ConnString = "Provider=OraOLEDB.Oracle;PLSQLRSet=1;Password=gqshad;User ID=gqshad;Data Source=mip"

Set objConn = Server.CreateObject("ADODB.Connection")
objConn.Open ConnString