C#连接Oracle的方法

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C#连接Oracle的方法方法1:System.Data.OracleClientoracleConnectionString : data source = orcl;user id= scott; password=tiger;persist security info=false;   端口不是默认的1225的时候,这个就不适用方法2:oracleConnectionString :Provider=OraOLEDB.Oracle.1;User ID=scott;Password=tiger;Data Source=(DESCRIPTION = (ADDRESS_LIST= (ADDRESS = (PROTOCOL = TCP)(HOST = 10.10.125.250)(PORT = 1521))) (CONNECT_DATA = (SERVICE_NAME = orcl)))方法3:oracleConnectionString:User ID=scott;Password=tiger;Data Source=(DESCRIPTION = (ADDRESS_LIST = (ADDRESS = (PROTOCOL = TCP)(HOST=10.10.125.250)(PORT=1521)))(CONNECT_DATA=(SERVICE_NAME=orcl)))