(原) ODP.NET 演示如何从DataSet中获取LOB数据 附：.NET 环境下连接Oracle数据库

演示如何从DataSet中获取LOB数据。

using System;

using System.Collections.Generic;

using System.Text;

using System.Data;

using Oracle.DataAccess.Client;

using Oracle.DataAccess.Types;

namespace Sample11

在学习例子的过程中想到了如何利用 Oracle.DataAccess.Client.OracleConnection 连接远程服务器的服务，就像SQL Server一样指定IP，这里需要的只是将tnsnames.ora中的连接信息拷贝过来就可以了。

这里对 .NET 连接 oracle 数据库 做些总结：

1、ODBC

//New version

Driver={Microsoft ODBC for Oracle};Server=myServerAddress;Uid=myUsername;Pwd=myPassword;

//Old version

Driver={Microsoft ODBC Driver for Oracle};ConnectString=OracleServer.world;Uid=myUsername;Pwd=myPassword;

2、OLE DB, OleDbConnection (.NET)

//Standard security This connection string uses a provider from Microsoft.

Provider=msdaora;Data Source=MyOracleDB;User Id=myUsername;Password=myPassword;

//Trusted connection

Provider=msdaora;Data Source=MyOracleDB;Persist Security Info=False;Integrated Security=Yes;

//Standard Security This connection string uses a provider from Oracle.

Provider=OraOLEDB.Oracle;Data Source=MyOracleDB;User Id=myUsername;Password=myPassword;

//Trusted Connection

Provider=OraOLEDB.Oracle;Data Source=MyOracleDB;OSAuthent=1;
3、Oracle.DataAccess.Client.OracleConnection

//Standard

Data Source=TORCL;User Id=myUsername;Password=myPassword;

//Using integrated security

Data Source=TORCL;Integrated Security=SSPI;

//Using ODP.NET without tnsnames.ora

Data Source=(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=MyHost)(PORT=MyPort)))(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=MyOracleSID)));User Id=myUsername;Password=myPassword;
4、OracleConnection, Oracle Data Provider, ODP.NET, System.Data.OracleClient.OracleConnection

// Standard

Data Source=MyOracleDB;Integrated Security=yes;

// Specifying username and password

Data Source=MyOracleDB;User Id=myUsername;Password=myPassword;Integrated Security=no;

// Omiting tnsnames.ora

SERVER=(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=MyHost)(PORT=MyPort))(CONNECT_DATA=(SERVICE_NAME=MyOracleSID)));uid=myUsername;pwd=myPassword;

Data Source=(DESCRIPTION=(ADDRESS=(PROTOCOL=TCP)(HOST=MyHost)(PORT=MyPort))(CONNECT_DATA=(SERVICE_NAME=MyOracleSID)));User Id=myUsername;Password=myPassword;

// Using Connection Pooling

Data Source=myOracleDB;User Id=myUsername;Password=myPassword;Min Pool Size=10;Connection Lifetime=120;Connection Timeout=60;Incr Pool Size=5;Decr Pool Size=2;

// Windows Authentication

Data Source=myOracleDB;User Id=/;

// Privileged Connection With SYSDBA privileges

Data Source=myOracleDB;User Id=SYS;Password=SYS;DBA Privilege=SYSDBA;

// Privileged Connection With SYSOPER privileges

Data Source=myOracleDB;User Id=SYS;Password=SYS;DBA Privilege=SYSOPER;

// Utilizing the Password Expiration functionality

Data Source=myOracleDB;User Id=myUsername;Password=myPassword;

oConn.OpenWithNewPassword(sTheNewPassword);

// Proxy Authentication

Data Source=myOracleDB;User Id=myUsername;Password=myPassword;Proxy User Id=pUserId;Proxy Password=pPassword;
5、Core Labs OraDirect (.NET)

// Standard

User ID=myUsername;Password=myPassword;Host=ora;Pooling=true;Min Pool Size=0;Max Pool Size=100;Connection Lifetime=0;
6、Data Shape

// MS Data Shape

Provider=MSDataShape.1;Persist Security Info=False;Data Provider=MSDAORA;Data Source=orac;User Id=myUsername;Password=myPassword;

更多的信息请参见：http://www.connectionstrings.com/