plsql对oracle数据库集群的操作

一、连接
在本地tnsnames中配置连接字符串
C:\oracle\product\10.2.0\db_1\network\ADMIN\tnsnames.ora

aix_group =
(DESCRIPTION =
	(ADDRESS_LIST =
		(ADDRESS = (PROTOCOL = TCP)(HOST = 192.123.2.4)(PORT = 1521))
		(ADDRESS = (PROTOCOL = TCP)(HOST = 192.123.2.5)(PORT = 1521))
	)
	(LOAD_BALANCE=yes)
	(CONNECT_DATA =
		(SERVER = DEDICATED)
		(SERVICE_NAME = orcl)
	)
)