1． 定义连接对象 

Global DBconnect As New ADODB.Connection 

2． 执行连接语句 

If DBconnect.State = adStateOpen And Not IsEmpty(adStateOpen) Then DBconnect.Close 

  

l         连接ODBC 

    DBconnect.ConnectionString = "dsn=DataAliasName;uid=UserID;pwd=Passwd;" 

l         直接连接Access为 

Dbconnect.Provider = "Microsoft.jet.OLEDB.4.0"  // Access 97为3.51 

DBconnect.ConnectionString = "FilePath\FileName.mdb" 

l         连接Oracle 

DBconnect.Provider = "MSADORA" 

DBconnect.ConnectionString = "user/mypass@servicename  

l         连接SQL Server 

DBconnect.Provider = "SQLOLEDB.1" 

DBconnect.ConnectionString = "DATABASE= ;SERVER= ;UID= ;PWD= ;" 

或者可以使用 DBconnect.Open "SERVER" , "USERID" , "PASSWORD" 

  

DBConnect.Open 

3． 取查询结果集 

Global RS As New ADODB.Recordset 

Global PS As New ADODB.Recordset 

If RS.State = adStateOpen And Not IsEmpty(adStateOpen) Then RS.Close 

     RS.Open SQLStr, DBconnect, adOpenKeyset 

4． 执行SQL语句 

DBconn.Execute SQLStr 

5． 关闭数据库 

DBconnect.Close