jdbc: oracle: thin: @ localhost: 1521: orcl 과 jdbc: oracle: thin: @ / localhost: 1521 / orcl 의 차이

Oracle Thin JDBC Driver

      ：ojdbc14.jar、ojdbc6.jar

      : oracle.jdbc.driver.OracleDriver

JDBC URL: 

1. ServiceName  ：(    )
jdbc:oracle:thin:@//:/ServiceName

2. SID  ：
jdbc:oracle:thin:@::

 
  
3.RAC  （    ，     ServiceName  ）
jdbc:oracle:thin:@(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)(HOST=x.x.x.1)(PORT=1521))(ADDRESS=(PROTOCOL=TCP)(HOST=x.x.x.2)(PORT=1521)))(LOAD_BALANCE=yes)(CONNECT_DATA=(SERVER=DEDICATED)(SERVICE_NAME=xxrac)))

4. jdbc:oracle:oci:@service （         ）

    ：
jdbc:oracle:thin:@localhost:1521/orcl