VB中怎么连接Oracle?

Question

在VB中怎么连接Oracle?是那种通过IP和端口直接连数据库的那种,因为需要打包安装在不同的机器上连接一个Server..
有例子吗

Answer 1

看看这几篇贴子就行了
http://expert.csdn.net/Expert/topic/2547/2547080.xml?temp=.6199762http://expert.csdn.net/Expert/topic/2523/2523739.xml?temp=.6168939http://expert.csdn.net/Expert/topic/2413/2413618.xml?temp=.9340021
简单总结
一、用ORADC连：
    oradata1.connect="username/password"
    oradata1.recordsource="select * from tablename"
    oradata1.refresh
    ...二、用OO连：
    dim OraSession as Object
    dim OraDatabase as Object
    dim OraDynaset as Object
    set OraSession = CreateObject("OracleInProcServer.XOraSession")
    set OraDatabase=Orasession.DbOpenDatabase("databasename","username/password",0&)
    set OraDynaset=OraDatabase.DbCreateDynaset("select * from tablename",0&)
    OraSession.DbBeginTrans
    ....  '操作数据
    OraSesion.DbcommitTrans
Oracle 
 ODBC 
 New version:
"Driver={Microsoft ODBC for Oracle};Server=OracleServer.world;Uid=Username;Pwd=asdasd;" 
 Old version:
"Driver={Microsoft ODBC Driver for Oracle};ConnectString=OracleServer.world;Uid=myUsername;Pwd=myPassword;" 
 OLEDB, OleDbConnection (.NET) 
 Standard security:
"Provider=msdaora;Data Source=MyOracleDB;User Id=UserName;Password=asdasd;" 
This one's from Microsoft, the following are from Oracle
 Standard Security:
"Provider=OraOLEDB.Oracle;Data Source=MyOracleDB;User Id=Username;Password=asdasd;" 
 Trusted Connection:
"Provider=OraOLEDB.Oracle;Data Source=MyOracleDB;OSAuthent=1;"

Answer 2

to SoHo_Andy(冰) ( ) 信誉：100 
在没有安装客户端的机器上    set OraDatabase=Orasession.DbOpenDatabase("databasename","username/password",0&)
的"databasename"能取到吗?因为程序需要做安装文件安装在很多机器上,所以不能每台都安装客户端或建数据源,该怎么连呢?

Answer 3

各种数据库连接大全 SQL Server 
 ODBC 
 Standard Security:
"Driver={SQL Server};Server=Aron1;Database=pubs;Uid=sa;Pwd=asdasd;" 
 Trusted connection:
"Driver={SQL Server};Server=Aron1;Database=pubs;Trusted_Connection=yes;" 
 Prompt for username and password:
oConn.Properties("Prompt") = adPromptAlways
oConn.Open "Driver={SQL Server};Server=Aron1;DataBase=pubs;" 
 OLEDB, OleDbConnection (.NET) 
 Standard Security:
"Provider=sqloledb;Data Source=Aron1;Initial Catalog=pubs;User Id=sa;Password=asdasd;" 
 Trusted Connection:
"Provider=sqloledb;Data Source=Aron1;Initial Catalog=pubs;Integrated Security=SSPI;" 
(use serverName\instanceName as Data Source to use an specifik SQLServer instance, only SQLServer2000)
 Prompt for username and password:
oConn.Provider = "sqloledb"
oConn.Properties("Prompt") = adPromptAlways
oConn.Open "Data Source=Aron1;Initial Catalog=pubs;" 
 Connect via an IP address:
"Provider=sqloledb;Data Source=190.190.200.100,1433;Network Library=DBMSSOCN;Initial Catalog=pubs;User ID=sa;Password=asdasd;" 
(DBMSSOCN=TCP/IP instead of Named Pipes, at the end of the Data Source is the port to use (1433 is the default))
 SqlConnection (.NET) 
 Standard Security:
"Data Source=Aron1;Initial Catalog=pubs;User Id=sa;Password=asdasd;" 
 Trusted Connection:
"Data Source=Aron1;Initial Catalog=pubs;Integrated Security=SSPI;" 
(use serverName\instanceName as Data Source to use an specifik SQLServer instance, only SQLServer2000)
 Connect via an IP address:
"Data Source=190.190.200.100,1433;Network Library=DBMSSOCN;Initial Catalog=pubs;User ID=sa;Password=asdasd;" 
(DBMSSOCN=TCP/IP instead of Named Pipes, at the end of the Data Source is the port to use (1433 is the default))
 Declare the SqlConnection:C#:
using System.Data.SqlClient;
SqlConnection oSQLConn = new SqlConnection();
oSQLConn.ConnectionString="my connectionstring";
oSQLConn.Open(); VB.NET:
Imports System.Data.SqlClient
Dim oSQLConn As SqlConnection = New SqlConnection()
oSQLConn.ConnectionString="my connectionstring"
oSQLConn.Open() 
Oracle 
 ODBC 
 New version:
"Driver={Microsoft ODBC for Oracle};Server=OracleServer.world;Uid=Username;Pwd=asdasd;" 
 Old version:
"Driver={Microsoft ODBC Driver for Oracle};ConnectString=OracleServer.world;Uid=myUsername;Pwd=myPassword;" 
 OLEDB, OleDbConnection (.NET) 
 Standard security:
"Provider=msdaora;Data Source=MyOracleDB;User Id=UserName;Password=asdasd;" 
This one's from Microsoft, the following are from Oracle
 Standard Security:
"Provider=OraOLEDB.Oracle;Data Source=MyOracleDB;User Id=Username;Password=asdasd;" 
 Trusted Connection:
"Provider=OraOLEDB.Oracle;Data Source=MyOracleDB;OSAuthent=1;" 
 OracleConnection (.NET) 
 Standard:
"Data Source=Oracle8i;Integrated Security=yes"; 
This one works only with Oracle 8i release 3 or later
 Declare the OracleConnection:C#:
using System.Data.OracleClient;
OracleConnection oOracleConn = new OracleConnection();
oOracleConn.ConnectionString = "my connectionstring";
oOracleConn.Open(); VB.NET:
Imports System.Data.OracleClient
Dim oOracleConn As OracleConnection = New OracleConnection()
oOracleConn.ConnectionString = "my connectionstring"
oOracleConn.Open() 
 Data Shape 
 MS Data Shape:
"Provider=MSDataShape.1;Persist Security Info=False;Data Provider=MSDAORA;Data Source=orac;user id=username;password=mypw" 
 MySQL 
 ODBC 
 Local database:
"Driver={mySQL};Server=mySrvName;Option=16834;Database=mydatabase;" 
 Remote database:
"Driver={mySQL};Server=data.domain.com;Port=3306;Option=131072;Stmt=;Database=my-database;Uid=username;Pwd=password;" 
 OLEDB, OleDbConnection (.NET) 
 Standard:
"Provider=MySQLProv;Data Source=mydb;User Id=UserName;Password=asdasd;" 
 MySqlConnection (.NET) 
 EID:
"Data Source=server;Database=mydb;User ID=username;Password=pwd;Command Logging=false" 
This one is used with eInfoDesigns dbProvider, an add-on to .NET
 Declare the MySqlConnection:C#:
using EID.MySqlClient;
MySqlConnection oMySqlConn = new MySqlConnection();
oMySqlConn.ConnectionString = "my connectionstring";
oMySqlConn.Open(); VB.NET:
Imports EID.MySqlClient
Dim oMySqlConn As MySqlConnection = New MySqlConnection()
oMySqlConn.ConnectionString = "my connectionstring"
oMySqlConn.Open() 

Answer 4

Visual Basic Accessing an Oracle Database Using ADOhttp://support.microsoft.com/default.aspx?scid=kb;EN-US;176936